gnulib-tool

   1 #! /bin/sh
   2 #
   3 # Copyright (C) 2002-2016 Free Software Foundation, Inc.
   4 #
   5 # This program is free software: you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 3 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 #
  18
  19 # This program is meant for authors or maintainers which want to import
  20 # modules from gnulib into their packages.
  21
  22 progname=$0
  23 package=gnulib
  24 nl='
  25 '
  26 IFS=" ""        $nl"
  27
  28 # You can set AUTOCONFPATH to empty if autoconf 2.57 is already in your PATH.
  29 AUTOCONFPATH=
  30 #case $USER in
  31 #  bruno )
  32 #    AUTOCONFBINDIR=/packages/gnu-inst-autoconf/2.57/bin
  33 #    AUTOCONFPATH="eval env PATH=${AUTOCONFBINDIR}:\$PATH "
  34 #    ;;
  35 #esac
  36
  37 # You can set AUTOMAKEPATH to empty if automake 1.9.x is already in your PATH.
  38 AUTOMAKEPATH=
  39
  40 # You can set GETTEXTPATH to empty if autopoint 0.15 is already in your PATH.
  41 GETTEXTPATH=
  42
  43 # You can set LIBTOOLPATH to empty if libtoolize 2.x is already in your PATH.
  44 LIBTOOLPATH=
  45
  46 # If you didn't set AUTOCONFPATH and AUTOMAKEPATH, you can also set the
  47 # variables AUTOCONF, AUTOHEADER, ACLOCAL, AUTOMAKE, AUTORECONF individually.
  48 if test -z "${AUTOCONF}" || test -n "${AUTOCONFPATH}"; then
  49   AUTOCONF="${AUTOCONFPATH}autoconf"
  50 fi
  51 if test -z "${AUTOHEADER}" || test -n "${AUTOCONFPATH}"; then
  52   AUTOHEADER="${AUTOCONFPATH}autoheader"
  53 fi
  54 if test -z "${ACLOCAL}" || test -n "${AUTOMAKEPATH}"; then
  55   ACLOCAL="${AUTOMAKEPATH}aclocal"
  56 fi
  57 if test -z "${AUTOMAKE}" || test -n "${AUTOMAKEPATH}"; then
  58   AUTOMAKE="${AUTOMAKEPATH}automake"
  59 fi
  60 if test -z "${AUTORECONF}" || test -n "${AUTOCONFPATH}"; then
  61   AUTORECONF="${AUTOCONFPATH}autoreconf"
  62 fi
  63
  64 # If you didn't set GETTEXTPATH, you can also set the variable AUTOPOINT.
  65 if test -z "${AUTOPOINT}" || test -n "${GETTEXTPATH}"; then
  66   AUTOPOINT="${GETTEXTPATH}autopoint"
  67 fi
  68
  69 # If you didn't set LIBTOOLPATH, you can also set the variable LIBTOOLIZE.
  70 if test -z "${LIBTOOLIZE}" || test -n "${LIBTOOLPATH}"; then
  71   LIBTOOLIZE="${LIBTOOLPATH}libtoolize"
  72 fi
  73
  74 # You can set MAKE.
  75 if test -z "${MAKE}"; then
  76   MAKE=make
  77 fi
  78
  79 # When using GNU sed, turn off as many GNU extensions as possible,
  80 # to minimize the risk of accidentally using non-portable features.
  81 # However, do this only for gnulib-tool itself, not for the code that
  82 # gnulib-tool generates, since we don't want "sed --posix" to leak
  83 # into makefiles. And do it only for sed versions 4.2 or newer,
  84 # because "sed --posix" is buggy in GNU sed 4.1.5, see
  85 # <http://lists.gnu.org/archive/html/bug-gnulib/2009-02/msg00225.html>.
  86 if (alias) > /dev/null 2>&1 \
  87    && echo | sed --posix -e d >/dev/null 2>&1 \
  88    && case `sed --version | sed -e 's/^[^0-9]*//' -e 1q` in \
  89         [1-3]* | 4.[01]*) false;; \
  90         *) true;; \
  91       esac \
  92    ; then
  93   # Define sed as an alias.
  94   # It is not always possible to use aliases. Aliases are guaranteed to work
  95   # if the executing shell is bash and either it is invoked as /bin/sh or
  96   # is a version >= 2.0, supporting shopt. This is the common case.
  97   # Two other approaches (use of a variable $sed or of a function func_sed
  98   # instead of an alias) require massive, fragile code changes.
  99   # An other approach (use of function sed) requires `which sed` - but
 100   # 'which' is hard to emulate, due to missing "test -x" on some platforms.
 101   if test -n "$BASH_VERSION"; then
 102     shopt -s expand_aliases >/dev/null 2>&1
 103   fi
 104   alias sed='sed --posix'
 105 fi
 106
 107 # sed_noop is a sed expression that does nothing.
 108 # An empty expression does not work with the native 'sed' on AIX 6.1.
 109 sed_noop='s,x,x,'
 110
 111 # sed_comments is true or false, depending whether 'sed' supports comments.
 112 # AIX 5.3 sed barfs over indented comments.
 113 if echo fo | sed -e 's/f/g/
 114 # s/o/u/
 115  # indented comment
 116 s/o/e/' 2>/dev/null | grep ge > /dev/null; then
 117   sed_comments=true
 118 else
 119   sed_comments=false
 120 fi
 121
 122 # func_usage
 123 # outputs to stdout the --help usage message.
 124 func_usage ()
 125 {
 126   echo "\
 127 Usage: gnulib-tool --list
 128        gnulib-tool --find filename
 129        gnulib-tool --import [module1 ... moduleN]
 130        gnulib-tool --add-import [module1 ... moduleN]
 131        gnulib-tool --remove-import [module1 ... moduleN]
 132        gnulib-tool --update
 133        gnulib-tool --create-testdir --dir=directory [module1 ... moduleN]
 134        gnulib-tool --create-megatestdir --dir=directory [module1 ... moduleN]
 135        gnulib-tool --test --dir=directory module1 ... moduleN
 136        gnulib-tool --megatest --dir=directory [module1 ... moduleN]
 137        gnulib-tool --extract-description module
 138        gnulib-tool --extract-comment module
 139        gnulib-tool --extract-status module
 140        gnulib-tool --extract-notice module
 141        gnulib-tool --extract-applicability module
 142        gnulib-tool --extract-filelist module
 143        gnulib-tool --extract-dependencies module
 144        gnulib-tool --extract-autoconf-snippet module
 145        gnulib-tool --extract-automake-snippet module
 146        gnulib-tool --extract-include-directive module
 147        gnulib-tool --extract-link-directive module
 148        gnulib-tool --extract-license module
 149        gnulib-tool --extract-maintainer module
 150        gnulib-tool --extract-tests-module module
 151        gnulib-tool --copy-file file [destination]
 152
 153 Operation modes:
 154
 155       --list                print the available module names
 156       --find                find the modules which contain the specified file
 157       --import              import the given modules into the current package
 158       --add-import          augment the list of imports from gnulib into the
 159                             current package, by adding the given modules;
 160                             if no modules are specified, update the current
 161                             package from the current gnulib
 162       --remove-import       reduce the list of imports from gnulib into the
 163                             current package, by removing the given modules
 164       --update              update the current package, restore files omitted
 165                             from version control
 166       --create-testdir      create a scratch package with the given modules
 167       --create-megatestdir  create a mega scratch package with the given modules
 168                             one by one and all together
 169       --test                test the combination of the given modules
 170                             (recommended to use CC=\"gcc -Wall\" here)
 171       --megatest            test the given modules one by one and all together
 172                             (recommended to use CC=\"gcc -Wall\" here)
 173       --extract-description        extract the description
 174       --extract-comment            extract the comment
 175       --extract-status             extract the status (obsolete etc.)
 176       --extract-notice             extract the notice or banner
 177       --extract-applicability      extract the applicability
 178       --extract-filelist           extract the list of files
 179       --extract-dependencies       extract the dependencies
 180       --extract-autoconf-snippet   extract the snippet for configure.ac
 181       --extract-automake-snippet   extract the snippet for library makefile
 182       --extract-include-directive  extract the #include directive
 183       --extract-link-directive     extract the linker directive
 184       --extract-license            report the license terms of the source files
 185                                    under lib/
 186       --extract-maintainer         report the maintainer(s) inside gnulib
 187       --extract-tests-module       report the unit test module, if it exists
 188       --copy-file                  copy a file that is not part of any module
 189       --help                Show this help text.
 190       --version             Show version and authorship information.
 191
 192 General options:
 193
 194       --dir=DIRECTORY       Specify the target directory.
 195                             For --import, this specifies where your
 196                             configure.ac can be found.  Defaults to current
 197                             directory.
 198       --local-dir=DIRECTORY  Specify a local override directory where to look
 199                             up files before looking in gnulib's directory.
 200       --cache-modules       Enable module caching optimization.
 201       --no-cache-modules    Disable module caching optimization.
 202       --verbose             Increase verbosity. May be repeated.
 203       --quiet               Decrease verbosity. May be repeated.
 204
 205 Options for --import, --add/remove-import, --update:
 206
 207       --dry-run             Only print what would have been done.
 208
 209 Options for --import, --add/remove-import:
 210
 211       --with-tests          Include unit tests for the included modules.
 212
 213 Options for --create-[mega]testdir, --[mega]test:
 214
 215       --without-tests       Don't include unit tests for the included modules.
 216
 217 Options for --import, --add/remove-import,
 218             --create-[mega]testdir, --[mega]test:
 219
 220       --with-obsolete       Include obsolete modules when they occur among the
 221                             dependencies. By default, dependencies to obsolete
 222                             modules are ignored.
 223       --with-c++-tests      Include even unit tests for C++ interoperability.
 224       --without-c++-tests   Exclude unit tests for C++ interoperability.
 225       --with-longrunning-tests
 226                             Include even unit tests that are long-runners.
 227       --without-longrunning-tests
 228                             Exclude unit tests that are long-runners.
 229       --with-privileged-tests
 230                             Include even unit tests that require root
 231                             privileges.
 232       --without-privileged-tests
 233                             Exclude unit tests that require root privileges.
 234       --with-unportable-tests
 235                             Include even unit tests that fail on some platforms.
 236       --without-unportable-tests
 237                             Exclude unit tests that fail on some platforms.
 238       --with-all-tests      Include all kinds of problematic unit tests.
 239       --avoid=MODULE        Avoid including the given MODULE. Useful if you
 240                             have code that provides equivalent functionality.
 241                             This option can be repeated.
 242       --conditional-dependencies
 243                             Support conditional dependencies (may save configure
 244                             time and object code).
 245       --no-conditional-dependencies
 246                             Don't use conditional dependencies.
 247       --libtool             Use libtool rules.
 248       --no-libtool          Don't use libtool rules.
 249
 250 Options for --import, --add/remove-import:
 251
 252       --lib=LIBRARY         Specify the library name.  Defaults to 'libgnu'.
 253       --source-base=DIRECTORY
 254                             Directory relative to --dir where source code is
 255                             placed (default \"lib\").
 256       --m4-base=DIRECTORY   Directory relative to --dir where *.m4 macros are
 257                             placed (default \"m4\").
 258       --po-base=DIRECTORY   Directory relative to --dir where *.po files are
 259                             placed (default \"po\").
 260       --doc-base=DIRECTORY  Directory relative to --dir where doc files are
 261                             placed (default \"doc\").
 262       --tests-base=DIRECTORY
 263                             Directory relative to --dir where unit tests are
 264                             placed (default \"tests\").
 265       --aux-dir=DIRECTORY   Directory relative to --dir where auxiliary build
 266                             tools are placed (default comes from configure.ac).
 267       --lgpl[=2|=3]         Abort if modules aren't available under the LGPL.
 268                             Also modify license template from GPL to LGPL.
 269                             The version number of the LGPL can be specified;
 270                             the default is currently LGPLv3.
 271       --makefile-name=NAME  Name of makefile in automake syntax in the
 272                             source-base and tests-base directories
 273                             (default \"Makefile.am\").
 274       --macro-prefix=PREFIX  Specify the prefix of the macros 'gl_EARLY' and
 275                             'gl_INIT'. Default is 'gl'.
 276       --po-domain=NAME      Specify the prefix of the i18n domain. Usually use
 277                             the package name. A suffix '-gnulib' is appended.
 278       --witness-c-macro=NAME  Specify the C macro that is defined when the
 279                             sources in this directory are compiled or used.
 280       --vc-files            Update version control related files.
 281       --no-vc-files         Don't update version control related files
 282                             (.gitignore and/or .cvsignore).
 283
 284 Options for --create-[mega]testdir, --[mega]test:
 285
 286       --single-configure    Generate a single configure file, not a separate
 287                             configure file for the tests directory.
 288
 289 Options for --import, --add/remove-import, --update,
 290             --create-[mega]testdir, --[mega]test:
 291
 292   -s, --symbolic, --symlink Make symbolic links instead of copying files.
 293       --local-symlink       Make symbolic links instead of copying files, only
 294                             for files from the local override directory.
 295
 296 Options for --import, --add/remove-import, --update:
 297
 298   -S, --more-symlinks       Make symbolic links instead of copying files, and
 299                             don't replace copyright notices.
 300
 301 Report bugs to <bug-gnulib@gnu.org>."
 302 }
 303
 304 # func_version
 305 # outputs to stdout the --version message.
 306 func_version ()
 307 {
 308   func_gnulib_dir
 309   if test -d "$gnulib_dir"/.git \
 310      && (git --version) >/dev/null 2>/dev/null \
 311      && (date --version) >/dev/null 2>/dev/null; then
 312     # gnulib checked out from git.
 313     sed_extract_first_date='/^Date/{
 314 s/^Date:[        ]*//p
 315 q
 316 }'
 317     date=`cd "$gnulib_dir" && git log ChangeLog | sed -n -e "$sed_extract_first_date"`
 318     # Turn "Fri Mar 21 07:16:51 2008 -0600" into "Mar 21 2008 07:16:51 -0600".
 319     sed_year_before_time='s/^[^ ]* \([^ ]*\) \([0-9]*\) \([0-9:]*\) \([0-9]*\) /\1 \2 \4 \3 /'
 320     date=`echo "$date" | sed -e "$sed_year_before_time"`
 321     # Use GNU date to compute the time in GMT.
 322     date=`date -d "$date" -u +"%Y-%m-%d %H:%M:%S"`
 323     version=' '`cd "$gnulib_dir" && ./build-aux/git-version-gen /dev/null | sed -e 's/-dirty/-modified/'`
 324   else
 325     # gnulib copy without versioning information.
 326     date=`sed -e 's/ .*//;q' "$gnulib_dir"/ChangeLog`
 327     version=
 328   fi
 329   year=`"$gnulib_dir"/build-aux/mdate-sh "$self_abspathname" | sed -e 's,^.* ,,'`
 330   echo "\
 331 gnulib-tool (GNU $package $date)$version
 332 Copyright (C) $year Free Software Foundation, Inc.
 333 License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
 334 This is free software: you are free to change and redistribute it.
 335 There is NO WARRANTY, to the extent permitted by law.
 336 "
 337   printf "Written by %s, %s, and %s.\n" "Bruno Haible" "Paul Eggert" "Simon Josefsson"
 338 }
 339
 340 # func_emit_copyright_notice
 341 # outputs to stdout a header for a generated file.
 342 func_emit_copyright_notice ()
 343 {
 344   sed -n -e '/Copyright/ {
 345                p
 346                q
 347              }' < "$self_abspathname"
 348   echo "#"
 349   echo "# This file is free software; you can redistribute it and/or modify"
 350   echo "# it under the terms of the GNU General Public License as published by"
 351   echo "# the Free Software Foundation; either version 3 of the License, or"
 352   echo "# (at your option) any later version."
 353   echo "#"
 354   echo "# This file is distributed in the hope that it will be useful,"
 355   echo "# but WITHOUT ANY WARRANTY; without even the implied warranty of"
 356   echo "# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the"
 357   echo "# GNU General Public License for more details."
 358   echo "#"
 359   echo "# You should have received a copy of the GNU General Public License"
 360   echo "# along with this file.  If not, see <http://www.gnu.org/licenses/>."
 361   echo "#"
 362   echo "# As a special exception to the GNU General Public License,"
 363   echo "# this file may be distributed as part of a program that"
 364   echo "# contains a configuration script generated by Autoconf, under"
 365   echo "# the same distribution terms as the rest of that program."
 366   echo "#"
 367   echo "# Generated by gnulib-tool."
 368 }
 369
 370 # func_exit STATUS
 371 # exits with a given status.
 372 # This function needs to be used, rather than 'exit', when a 'trap' handler is
 373 # in effect that refers to $?.
 374 func_exit ()
 375 {
 376   (exit $1); exit $1
 377 }
 378
 379 # func_gnulib_dir
 380 # locates the directory where the gnulib repository lives
 381 # Input:
 382 # - progname                 name of this program
 383 # Sets variables
 384 # - self_abspathname         absolute pathname of gnulib-tool
 385 # - gnulib_dir               absolute pathname of gnulib repository
 386 func_gnulib_dir ()
 387 {
 388   case "$progname" in
 389     /* | ?:*) self_abspathname="$progname" ;;
 390     */*) self_abspathname=`pwd`/"$progname" ;;
 391     *)
 392       # Look in $PATH.
 393       # Iterate through the elements of $PATH.
 394       # We use IFS=: instead of
 395       #   for d in `echo ":$PATH:" | sed -e 's/:::*/:.:/g' | sed -e 's/:/ /g'`
 396       # because the latter does not work when some PATH element contains spaces.
 397       # We use a canonicalized $pathx instead of $PATH, because empty PATH
 398       # elements are by definition equivalent to '.', however field splitting
 399       # according to IFS=: loses empty fields in many shells:
 400       #   - /bin/sh on OSF/1 and Solaris loses all empty fields (at the
 401       #     beginning, at the end, and in the middle),
 402       #   - /bin/sh on IRIX and /bin/ksh on IRIX and OSF/1 lose empty fields
 403       #     at the beginning and at the end,
 404       #   - GNU bash, /bin/sh on AIX and HP-UX, and /bin/ksh on AIX, HP-UX,
 405       #     Solaris lose empty fields at the end.
 406       # The 'case' statement is an optimization, to avoid evaluating the
 407       # explicit canonicalization command when $PATH contains no empty fields.
 408       self_abspathname=
 409       if test "$PATH_SEPARATOR" = ";"; then
 410         # On Windows, programs are searched in "." before $PATH.
 411         pathx=".;$PATH"
 412       else
 413         # On Unix, we have to convert empty PATH elements to ".".
 414         pathx="$PATH"
 415         case :$PATH: in
 416           *::*)
 417             pathx=`echo ":$PATH:" | sed -e 's/:::*/:.:/g' -e 's/^://' -e 's/:\$//'`
 418             ;;
 419         esac
 420       fi
 421       save_IFS="$IFS"
 422       IFS="$PATH_SEPARATOR"
 423       for d in $pathx; do
 424         IFS="$save_IFS"
 425         test -z "$d" && d=.
 426         if test -x "$d/$progname" && test ! -d "$d/$progname"; then
 427           self_abspathname="$d/$progname"
 428           break
 429         fi
 430       done
 431       IFS="$save_IFS"
 432       if test -z "$self_abspathname"; then
 433         func_fatal_error "could not locate the gnulib-tool program - how did you invoke it?"
 434       fi
 435       ;;
 436   esac
 437   while test -h "$self_abspathname"; do
 438     # Resolve symbolic link.
 439     linkval=`func_readlink "$self_abspathname"`
 440     test -n "$linkval" || break
 441     case "$linkval" in
 442       /* | ?:* ) self_abspathname="$linkval" ;;
 443       * ) self_abspathname=`echo "$self_abspathname" | sed -e 's,/[^/]*$,,'`/"$linkval" ;;
 444     esac
 445   done
 446   gnulib_dir=`echo "$self_abspathname" | sed -e 's,/[^/]*$,,'`
 447 }
 448
 449 # func_tmpdir
 450 # creates a temporary directory.
 451 # Input:
 452 # - progname                 name of this program
 453 # Sets variable
 454 # - tmp             pathname of freshly created temporary directory
 455 func_tmpdir ()
 456 {
 457   # Use the environment variable TMPDIR, falling back to /tmp. This allows
 458   # users to specify a different temporary directory, for example, if their
 459   # /tmp is filled up or too small.
 460   : ${TMPDIR=/tmp}
 461   {
 462     # Use the mktemp program if available. If not available, hide the error
 463     # message.
 464     tmp=`(umask 077 && mktemp -d "$TMPDIR/glXXXXXX") 2>/dev/null` &&
 465     test -n "$tmp" && test -d "$tmp"
 466   } ||
 467   {
 468     # Use a simple mkdir command. It is guaranteed to fail if the directory
 469     # already exists.  $RANDOM is bash specific and expands to empty in shells
 470     # other than bash, ksh and zsh.  Its use does not increase security;
 471     # rather, it minimizes the probability of failure in a very cluttered /tmp
 472     # directory.
 473     tmp=$TMPDIR/gl$$-$RANDOM
 474     (umask 077 && mkdir "$tmp")
 475   } ||
 476   {
 477     echo "$progname: cannot create a temporary directory in $TMPDIR" >&2
 478     func_exit 1
 479   }
 480 }
 481
 482 # func_append var value
 483 # appends the given value to the shell variable var.
 484 if ( foo=bar; foo+=baz && test "$foo" = barbaz ) >/dev/null 2>&1; then
 485   # Use bash's += operator. It reduces complexity of appending repeatedly to
 486   # a single variable from O(n^2) to O(n).
 487   func_append ()
 488   {
 489     eval "$1+=\"\$2\""
 490   }
 491   fast_func_append=true
 492 else
 493   func_append ()
 494   {
 495     eval "$1=\"\$$1\$2\""
 496   }
 497   fast_func_append=false
 498 fi
 499
 500 # func_remove_prefix var prefix
 501 # removes the given prefix from the value of the shell variable var.
 502 # var should be the name of a shell variable.
 503 # Its value should not contain a newline and not start or end with whitespace.
 504 # prefix should not contain the characters "$`\{}[]^|.
 505 if ( foo=bar; eval 'test "${foo#b}" = ar' ) >/dev/null 2>&1; then
 506   func_remove_prefix ()
 507   {
 508     eval "$1=\${$1#\$2}"
 509   }
 510   fast_func_remove_prefix=true
 511 else
 512   func_remove_prefix ()
 513   {
 514     eval "value=\"\$$1\""
 515     prefix="$2"
 516     case "$prefix" in
 517       *.*)
 518         sed_escape_dots='s/\([.]\)/\\\1/g'
 519         prefix=`echo "$prefix" | sed -e "$sed_escape_dots"`
 520         ;;
 521     esac
 522     value=`echo "$value" | sed -e "s|^${prefix}||"`
 523     eval "$1=\"\$value\""
 524   }
 525   fast_func_remove_prefix=false
 526 fi
 527
 528 # Determine whether we should use ':' or ';' as PATH_SEPARATOR.
 529 func_determine_path_separator ()
 530 {
 531   if test "${PATH_SEPARATOR+set}" != set; then
 532     # Determine PATH_SEPARATOR by trying to find /bin/sh in a PATH which
 533     # contains only /bin. Note that ksh looks also at the FPATH variable,
 534     # so we have to set that as well for the test.
 535     PATH_SEPARATOR=:
 536     (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 \
 537       && { (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 \
 538              || PATH_SEPARATOR=';'
 539          }
 540   fi
 541 }
 542
 543 # func_path_prepend pathvar directory
 544 # puts directory before pathvar, delimiting directories by PATH_SEPARATOR.
 545 # Newly added directory into pathvar has the highest priority.
 546 func_path_prepend ()
 547 {
 548   if eval "test -n \"\$$1\""; then
 549     eval "$1=\$2\$PATH_SEPARATOR\$$1"
 550   else
 551     eval "$1=\$2"
 552   fi
 553 }
 554
 555 # func_path_append pathvar directory
 556 # Similar to func_path_prepend except that the newest directory has the lowest
 557 # priority.
 558 func_path_append ()
 559 {
 560   if eval "test -n \"\$$1\""; then
 561     func_append "$1" "$PATH_SEPARATOR$2"
 562   else
 563     eval "$1=\$2"
 564   fi
 565 }
 566
 567 # func_path_foreach_inner
 568 # helper for func_path_foreach because we need new 'args' array
 569 # Input:
 570 # - fpf_dir     directory from local_gnulib_path
 571 # - fpf_cb      callback to be run for fpf_dir
 572 func_path_foreach_inner ()
 573 {
 574   set %start% "$@"
 575   for _fpf_arg
 576   do
 577     case $_fpf_arg in
 578       %start%)
 579         set dummy
 580         ;;
 581       %dir%)
 582         set "$@" "$fpf_dir"
 583         ;;
 584       *)
 585         set "$@" "$_fpf_arg"
 586         ;;
 587     esac
 588   done
 589   shift
 590
 591   "$fpf_cb" "$@"
 592 }
 593
 594 # func_path_foreach path method args
 595 # Execute method for each directory in path.  The method will be called
 596 # like `method args` while any argument '%dir%' within args will be replaced
 597 # with processed directory from path.
 598 func_path_foreach ()
 599 {
 600   fpf_save_IFS=$IFS
 601   fpf_dirs=$1 ; shift
 602   fpf_cb=$1 ; shift
 603   fpf_rc=false
 604
 605   IFS=$PATH_SEPARATOR
 606   for fpf_dir in $fpf_dirs
 607   do
 608     func_path_foreach_inner "$@" && fpf_rc=:
 609   done
 610   IFS=$fpf_save_IFS
 611   $fpf_rc
 612 }
 613
 614 # func_remove_suffix var suffix
 615 # removes the given suffix from the value of the shell variable var.
 616 # var should be the name of a shell variable.
 617 # Its value should not contain a newline and not start or end with whitespace.
 618 # suffix should not contain the characters "$`\{}[]^|.
 619 if ( foo=bar; eval 'test "${foo%r}" = ba' ) >/dev/null 2>&1; then
 620   func_remove_suffix ()
 621   {
 622     eval "$1=\${$1%\$2}"
 623   }
 624   fast_func_remove_suffix=true
 625 else
 626   func_remove_suffix ()
 627   {
 628     eval "value=\"\$$1\""
 629     suffix="$2"
 630     case "$suffix" in
 631       *.*)
 632         sed_escape_dots='s/\([.]\)/\\\1/g'
 633         suffix=`echo "$suffix" | sed -e "$sed_escape_dots"`
 634         ;;
 635     esac
 636     value=`echo "$value" | sed -e "s|${suffix}\$||"`
 637     eval "$1=\"\$value\""
 638   }
 639   fast_func_remove_suffix=false
 640 fi
 641
 642 # func_fatal_error message
 643 # outputs to stderr a fatal error message, and terminates the program.
 644 # Input:
 645 # - progname                 name of this program
 646 func_fatal_error ()
 647 {
 648   echo "$progname: *** $1" 1>&2
 649   echo "$progname: *** Stop." 1>&2
 650   func_exit 1
 651 }
 652
 653 # func_warning message
 654 # Outputs to stderr a warning message,
 655 func_warning ()
 656 {
 657   echo "gnulib-tool: warning: $1" 1>&2
 658 }
 659
 660 # func_readlink SYMLINK
 661 # outputs the target of the given symlink.
 662 if (type readlink) > /dev/null 2>&1; then
 663   func_readlink ()
 664   {
 665     # Use the readlink program from GNU coreutils.
 666     readlink "$1"
 667   }
 668 else
 669   func_readlink ()
 670   {
 671     # Use two sed invocations. A single sed -n -e 's,^.* -> \(.*\)$,\1,p'
 672     # would do the wrong thing if the link target contains " -> ".
 673     LC_ALL=C ls -l "$1" | sed -e 's, -> ,#%%#,' | sed -n -e 's,^.*#%%#\(.*\)$,\1,p'
 674   }
 675 fi
 676
 677 # func_relativize DIR1 DIR2
 678 # computes a relative pathname RELDIR such that DIR1/RELDIR = DIR2.
 679 # Input:
 680 # - DIR1            relative pathname, relative to the current directory
 681 # - DIR2            relative pathname, relative to the current directory
 682 # Output:
 683 # - reldir          relative pathname of DIR2, relative to DIR1
 684 func_relativize ()
 685 {
 686   dir0=`pwd`
 687   dir1="$1"
 688   dir2="$2"
 689   sed_first='s,^\([^/]*\)/.*$,\1,'
 690   sed_rest='s,^[^/]*/*,,'
 691   sed_last='s,^.*/\([^/]*\)$,\1,'
 692   sed_butlast='s,/*[^/]*$,,'
 693   while test -n "$dir1"; do
 694     first=`echo "$dir1" | sed -e "$sed_first"`
 695     if test "$first" != "."; then
 696       if test "$first" = ".."; then
 697         dir2=`echo "$dir0" | sed -e "$sed_last"`/"$dir2"
 698         dir0=`echo "$dir0" | sed -e "$sed_butlast"`
 699       else
 700         first2=`echo "$dir2" | sed -e "$sed_first"`
 701         if test "$first2" = "$first"; then
 702           dir2=`echo "$dir2" | sed -e "$sed_rest"`
 703         else
 704           dir2="../$dir2"
 705         fi
 706         dir0="$dir0"/"$first"
 707       fi
 708     fi
 709     dir1=`echo "$dir1" | sed -e "$sed_rest"`
 710   done
 711   reldir="$dir2"
 712 }
 713
 714 # func_relconcat DIR1 DIR2
 715 # computes a relative pathname DIR1/DIR2, with obvious simplifications.
 716 # Input:
 717 # - DIR1            relative pathname, relative to the current directory
 718 # - DIR2            relative pathname, relative to DIR1
 719 # Output:
 720 # - relconcat       DIR1/DIR2, relative to the current directory
 721 func_relconcat ()
 722 {
 723   dir1="$1"
 724   dir2="$2"
 725   sed_first='s,^\([^/]*\)/.*$,\1,'
 726   sed_rest='s,^[^/]*/*,,'
 727   sed_last='s,^.*/\([^/]*\)$,\1,'
 728   sed_butlast='s,/*[^/]*$,,'
 729   while true; do
 730     first=`echo "$dir2" | sed -e "$sed_first"`
 731     if test "$first" = "."; then
 732       dir2=`echo "$dir2" | sed -e "$sed_rest"`
 733       if test -z "$dir2"; then
 734         relconcat="$dir1"
 735         break
 736       fi
 737     else
 738       last=`echo "$dir1" | sed -e "$sed_last"`
 739       while test "$last" = "."; do
 740         dir1=`echo "$dir1" | sed -e "$sed_butlast"`
 741         last=`echo "$dir1" | sed -e "$sed_last"`
 742       done
 743       if test -z "$dir1"; then
 744         relconcat="$dir2"
 745         break
 746       fi
 747       if test "$first" = ".."; then
 748         if test "$last" = ".."; then
 749           relconcat="$dir1/$dir2"
 750           break
 751         fi
 752         dir1=`echo "$dir1" | sed -e "$sed_butlast"`
 753         dir2=`echo "$dir2" | sed -e "$sed_rest"`
 754         if test -z "$dir1"; then
 755           relconcat="$dir2"
 756           break
 757         fi
 758         if test -z "$dir2"; then
 759           relconcat="$dir1"
 760           break
 761         fi
 762       else
 763         relconcat="$dir1/$dir2"
 764         break
 765       fi
 766     fi
 767   done
 768 }
 769
 770 # func_ln SRC DEST
 771 # Like ln -s, except that SRC is given relative to the current directory (or
 772 # absolute), not given relative to the directory of DEST.
 773 func_ln ()
 774 {
 775   case "$1" in
 776     /* | ?:*)
 777       ln -s "$1" "$2" ;;
 778     *) # SRC is relative.
 779       case "$2" in
 780         /* | ?:*)
 781           ln -s "`pwd`/$1" "$2" ;;
 782         *) # DEST is relative too.
 783           ln_destdir=`echo "$2" | sed -e 's,[^/]*$,,'`
 784           test -n "$ln_destdir" || ln_destdir="."
 785           func_relativize "$ln_destdir" "$1"
 786           ln -s "$reldir" "$2"
 787           ;;
 788       esac
 789       ;;
 790   esac
 791 }
 792
 793 # func_ln_if_changed SRC DEST
 794 # Like func_ln, but avoids munging timestamps if the link is correct.
 795 func_ln_if_changed ()
 796 {
 797   if test $# -ne 2; then
 798     echo "usage: func_ln_if_changed SRC DEST" >&2
 799   fi
 800   ln_target=`func_readlink "$2"`
 801   if test -h "$2" && test "$1" = "$ln_target"; then
 802     :
 803   else
 804     rm -f "$2"
 805     func_ln "$1" "$2"
 806   fi
 807 }
 808
 809 # Ensure an 'echo' command that
 810 #   1. does not interpret backslashes and
 811 #   2. does not print an error message "broken pipe" when writing into a pipe
 812 #      with no writers.
 813 #
 814 # Test cases for problem 1:
 815 #   echo '\n' | wc -l                 prints 1 when OK, 2 when KO
 816 #   echo '\t' | grep t > /dev/null    has return code 0 when OK, 1 when KO
 817 # Test cases for problem 2:
 818 #   echo hi | true                    frequently prints
 819 #                                     "bash: echo: write error: Broken pipe"
 820 #                                     to standard error in bash 3.2.
 821 #
 822 # Problem 1 is a weird heritage from SVR4. BSD got it right (except that
 823 # BSD echo interprets '-n' as an option, which is also not desirable).
 824 # Nowadays the problem occurs in 4 situations:
 825 # - in bash, when the shell option xpg_echo is set (bash >= 2.04)
 826 #            or when it was built with --enable-usg-echo-default (bash >= 2.0)
 827 #            or when it was built with DEFAULT_ECHO_TO_USG (bash < 2.0),
 828 # - in zsh, when sh-emulation is not set,
 829 # - in ksh (e.g. AIX /bin/sh and Solaris /usr/xpg4/bin/sh are ksh instances,
 830 #           and HP-UX /bin/sh and IRIX /bin/sh behave similarly),
 831 # - in Solaris /bin/sh and OSF/1 /bin/sh.
 832 # We try the following workarounds:
 833 # - for all: respawn using $CONFIG_SHELL if that is set and works.
 834 # - for bash >= 2.04: unset the shell option xpg_echo.
 835 # - for bash >= 2.0: define echo to a function that uses the printf built-in.
 836 # - for bash < 2.0: define echo to a function that uses cat of a here document.
 837 # - for zsh: turn sh-emulation on.
 838 # - for ksh: alias echo to 'print -r'.
 839 # - for ksh: alias echo to a function that uses cat of a here document.
 840 # - for Solaris /bin/sh and OSF/1 /bin/sh: respawn using /bin/ksh and rely on
 841 #   the ksh workaround.
 842 # - otherwise: respawn using /bin/sh and rely on the workarounds.
 843 # When respawning, we pass --no-reexec as first argument, so as to avoid
 844 # turning this script into a fork bomb in unlucky situations.
 845 #
 846 # Problem 2 is specific to bash 3.2 and affects the 'echo' built-in, but not
 847 # the 'printf' built-in. See
 848 #   <http://lists.gnu.org/archive/html/bug-bash/2008-12/msg00050.html>
 849 #   <http://lists.gnu.org/archive/html/bug-gnulib/2010-02/msg00154.html>
 850 # The workaround is: define echo to a function that uses the printf built-in.
 851 have_echo=
 852 if echo '\t' | grep t > /dev/null; then
 853   have_echo=yes # Lucky!
 854 fi
 855 # Try the workarounds.
 856 # Respawn using $CONFIG_SHELL if that is set and works.
 857 if test -z "$have_echo" \
 858    && test "X$1" != "X--no-reexec" \
 859    && test -n "$CONFIG_SHELL" \
 860    && test -f "$CONFIG_SHELL" \
 861    && $CONFIG_SHELL -c "echo '\\t' | grep t > /dev/null"; then
 862   exec $CONFIG_SHELL "$0" --no-reexec "$@"
 863   exit 127
 864 fi
 865 # For bash >= 2.04: unset the shell option xpg_echo.
 866 if test -z "$have_echo" \
 867    && test -n "$BASH_VERSION" \
 868    && (shopt -o xpg_echo; echo '\t' | grep t > /dev/null) 2>/dev/null; then
 869   shopt -o xpg_echo
 870   have_echo=yes
 871 fi
 872 # For bash >= 2.0: define echo to a function that uses the printf built-in.
 873 # For bash < 2.0: define echo to a function that uses cat of a here document.
 874 # (There is no win in using 'printf' over 'cat' if it is not a shell built-in.)
 875 # Also handle problem 2, specific to bash 3.2, here.
 876 if { test -z "$have_echo" \
 877      || case "$BASH_VERSION" in 3.2*) true;; *) false;; esac; \
 878    } \
 879    && test -n "$BASH_VERSION"; then \
 880   if type printf 2>/dev/null | grep / > /dev/null; then
 881     # 'printf' is not a shell built-in.
 882 echo ()
 883 {
 884 cat <<EOF
 885 $*
 886 EOF
 887 }
 888   else
 889     # 'printf' is a shell built-in.
 890 echo ()
 891 {
 892   printf '%s\n' "$*"
 893 }
 894   fi
 895   if echo '\t' | grep t > /dev/null; then
 896     have_echo=yes
 897   fi
 898 fi
 899 # For zsh: turn sh-emulation on.
 900 if test -z "$have_echo" \
 901    && test -n "$ZSH_VERSION" \
 902    && (emulate sh) >/dev/null 2>&1; then
 903   emulate sh
 904 fi
 905 # For ksh: alias echo to 'print -r'.
 906 if test -z "$have_echo" \
 907    && (type print) >/dev/null 2>&1; then
 908   # A 'print' command exists.
 909   if type print 2>/dev/null | grep / > /dev/null; then
 910     :
 911   else
 912     # 'print' is a shell built-in.
 913     if (print -r '\told' | grep told > /dev/null) 2>/dev/null; then
 914       # 'print' is the ksh shell built-in.
 915       alias echo='print -r'
 916     fi
 917   fi
 918 fi
 919 if test -z "$have_echo" \
 920    && echo '\t' | grep t > /dev/null; then
 921   have_echo=yes
 922 fi
 923 # For ksh: alias echo to a function that uses cat of a here document.
 924 # The ksh manual page says:
 925 #   "Aliasing is performed when scripts are read, not while they are executed.
 926 #    Therefore, for an alias to take effect, the alias definition command has
 927 #    to be executed before the command which references the alias is read."
 928 # Because of this, we have to play strange tricks with have_echo, to ensure
 929 # that the top-level statement containing the test starts after the 'alias'
 930 # command.
 931 if test -z "$have_echo"; then
 932   bsd_echo ()
 933 {
 934 cat <<EOF
 935 $*
 936 EOF
 937 }
 938   if (alias echo=bsd_echo) 2>/dev/null; then
 939     alias echo=bsd_echo 2>/dev/null
 940   fi
 941 fi
 942 if test -z "$have_echo" \
 943    && echo '\t' | grep t > /dev/null; then
 944   have_echo=yes
 945 fi
 946 if test -z "$have_echo"; then
 947   if (alias echo=bsd_echo) 2>/dev/null; then
 948     unalias echo 2>/dev/null
 949   fi
 950 fi
 951 # For Solaris /bin/sh and OSF/1 /bin/sh: respawn using /bin/ksh.
 952 if test -z "$have_echo" \
 953    && test "X$1" != "X--no-reexec" \
 954    && test -f /bin/ksh; then
 955   exec /bin/ksh "$0" --no-reexec "$@"
 956   exit 127
 957 fi
 958 # Otherwise: respawn using /bin/sh.
 959 if test -z "$have_echo" \
 960    && test "X$1" != "X--no-reexec" \
 961    && test -f /bin/sh; then
 962   exec /bin/sh "$0" --no-reexec "$@"
 963   exit 127
 964 fi
 965 if test -z "$have_echo"; then
 966   func_fatal_error "Shell does not support 'echo' correctly. Please install GNU bash and set the environment variable CONFIG_SHELL to point to it."
 967 fi
 968 if echo '\t' | grep t > /dev/null; then
 969   : # Works fine now.
 970 else
 971   func_fatal_error "Shell does not support 'echo' correctly. Workaround does not work. Please report this as a bug to bug-gnulib@gnu.org."
 972 fi
 973 if test "X$1" = "X--no-reexec"; then
 974   shift
 975 fi
 976
 977 # Unset CDPATH.  Otherwise, output from 'cd dir' can surprise callers.
 978 (unset CDPATH) >/dev/null 2>&1 && unset CDPATH
 979
 980 # Determine the path separator early because the following option parsing code
 981 # requires that.
 982 func_determine_path_separator
 983
 984 # Command-line option processing.
 985 # Removes the OPTIONS from the arguments. Sets the variables:
 986 # - mode            one of: list, find, import, add-import, remove-import,
 987 #                   update, create-testdir, create-megatestdir, test, megatest,
 988 #                   copy-file
 989 # - destdir         from --dir
 990 # - local_gnulib_path  from --local-dir
 991 # - modcache        true or false, from --cache-modules/--no-cache-modules
 992 # - verbose         integer, default 0, inc/decremented by --verbose/--quiet
 993 # - libname, supplied_libname  from --lib
 994 # - sourcebase      from --source-base
 995 # - m4base          from --m4-base
 996 # - pobase          from --po-base
 997 # - docbase         from --doc-base
 998 # - testsbase       from --tests-base
 999 # - auxdir          from --aux-dir
1000 # - inctests        true if --with-tests was given, false if --without-tests
1001 #                   was given, blank otherwise
1002 # - incobsolete     true if --with-obsolete was given, blank otherwise
1003 # - inc_cxx_tests   true if --with-c++-tests was given, blank otherwise
1004 # - inc_longrunning_tests  true if --with-longrunning-tests was given, blank
1005 #                          otherwise
1006 # - inc_privileged_tests  true if --with-privileged-tests was given, blank
1007 #                         otherwise
1008 # - inc_unportable_tests  true if --with-unportable-tests was given, blank
1009 #                         otherwise
1010 # - inc_all_tests   true if --with-all-tests was given, blank otherwise
1011 # - excl_cxx_tests  true if --without-c++-tests was given, blank otherwise
1012 # - excl_longrunning_tests  true if --without-longrunning-tests was given,
1013 #                           blank otherwise
1014 # - excl_privileged_tests  true if --without-privileged-tests was given, blank
1015 #                          otherwise
1016 # - excl_unportable_tests  true if --without-unportable-tests was given, blank
1017 #                          otherwise
1018 # - single_configure  true if --single-configure was given, false otherwise
1019 # - avoidlist       list of modules to avoid, from --avoid
1020 # - cond_dependencies  true if --conditional-dependencies was given, false if
1021 #                      --no-conditional-dependencies was given, blank otherwise
1022 # - lgpl            yes or a number if --lgpl was given, blank otherwise
1023 # - makefile_name   from --makefile-name
1024 # - libtool         true if --libtool was given, false if --no-libtool was
1025 #                   given, blank otherwise
1026 # - macro_prefix    from --macro-prefix
1027 # - po_domain       from --po-domain
1028 # - witness_c_macro  from --witness-c-macro
1029 # - vc_files        true if --vc-files was given, false if --no-vc-files was
1030 #                   given, blank otherwise
1031 # - autoconf_minversion  minimum supported autoconf version
1032 # - doit            : if actions shall be executed, false if only to be printed
1033 # - symbolic        true if --symlink or --more-symlinks was given, blank
1034 #                   otherwise
1035 # - lsymbolic       true if --local-symlink was given, blank otherwise
1036 # - do_copyrights   blank if --more-symlinks was given, true otherwise
1037 {
1038   mode=
1039   destdir=
1040   local_gnulib_path=
1041   modcache=true
1042   verbose=0
1043   libname=libgnu
1044   supplied_libname=
1045   sourcebase=
1046   m4base=
1047   pobase=
1048   docbase=
1049   testsbase=
1050   auxdir=
1051   inctests=
1052   incobsolete=
1053   inc_cxx_tests=
1054   inc_longrunning_tests=
1055   inc_privileged_tests=
1056   inc_unportable_tests=
1057   inc_all_tests=
1058   excl_cxx_tests=
1059   excl_longrunning_tests=
1060   excl_privileged_tests=
1061   excl_unportable_tests=
1062   single_configure=false
1063   avoidlist=
1064   cond_dependencies=
1065   lgpl=
1066   makefile_name=
1067   libtool=
1068   macro_prefix=
1069   po_domain=
1070   witness_c_macro=
1071   vc_files=
1072   doit=:
1073   symbolic=
1074   lsymbolic=
1075   do_copyrights=true
1076
1077   supplied_opts="$@"
1078
1079   while test $# -gt 0; do
1080     case "$1" in
1081       --list | --lis )
1082         mode=list
1083         shift ;;
1084       --find | --fin | --fi | --f )
1085         mode=find
1086         shift ;;
1087       --import | --impor | --impo | --imp | --im | --i )
1088         mode=import
1089         shift ;;
1090       --add-import | --add-impor | --add-impo | --add-imp | --add-im | --add-i | --add- | --add | --ad )
1091         mode=add-import
1092         shift ;;
1093       --remove-import | --remove-impor | --remove-impo | --remove-imp | --remove-im | --remove-i | --remove- | --remove | --remov | --remo | --rem | --re | --r )
1094         mode=remove-import
1095         shift ;;
1096       --update | --updat | --upda | --upd | --up | --u )
1097         mode=update
1098         shift ;;
1099       --create-testdir | --create-testdi | --create-testd | --create-test | --create-tes | --create-te | --create-t )
1100         mode=create-testdir
1101         shift ;;
1102       --create-megatestdir | --create-megatestdi | --create-megatestd | --create-megatest | --create-megates | --create-megate | --create-megat | --create-mega | --create-meg | --create-me | --create-m )
1103         mode=create-megatestdir
1104         shift ;;
1105       --test | --tes | --te | --t )
1106         mode=test
1107         shift ;;
1108       --megatest | --megates | --megate | --megat | --mega | --meg | --me | --m )
1109         mode=megatest
1110         shift ;;
1111       --extract-* )
1112         mode=`echo "X$1" | sed -e 's/^X--//'`
1113         shift ;;
1114       --copy-file | --copy-fil | --copy-fi | --copy-f | --copy- | --copy | --cop )
1115         mode=copy-file
1116         shift ;;
1117       --dir )
1118         shift
1119         if test $# = 0; then
1120           func_fatal_error "missing argument for --dir"
1121         fi
1122         destdir=$1
1123         shift ;;
1124       --dir=* )
1125         destdir=`echo "X$1" | sed -e 's/^X--dir=//'`
1126         shift ;;
1127       --local-dir )
1128         shift
1129         if test $# = 0; then
1130           func_fatal_error "missing argument for --local-dir"
1131         fi
1132         func_path_prepend local_gnulib_path "$1"
1133         shift ;;
1134       --local-dir=* )
1135         local_dir=`echo "X$1" | sed -e 's/^X--local-dir=//'`
1136         func_path_prepend local_gnulib_path "$local_dir"
1137         shift ;;
1138       --cache-modules | --cache-module | --cache-modul | --cache-modu | --cache-mod | --cache-mo | --cache-m | --cache- | --cache | --cach | --cac | --ca )
1139         modcache=true
1140         shift ;;
1141       --no-cache-modules | --no-cache-module | --no-cache-modul | --no-cache-modu | --no-cache-mod | --no-cache-mo | --no-cache-m | --no-cache- | --no-cache | --no-cach | --no-cac | --no-ca )
1142         modcache=false
1143         shift ;;
1144       --verbose | --verbos | --verbo | --verb )
1145         verbose=`expr $verbose + 1`
1146         shift ;;
1147       --quiet | --quie | --qui | --qu | --q )
1148         verbose=`expr $verbose - 1`
1149         shift ;;
1150       --lib )
1151         shift
1152         if test $# = 0; then
1153           func_fatal_error "missing argument for --lib"
1154         fi
1155         libname=$1
1156         supplied_libname=true
1157         shift ;;
1158       --lib=* )
1159         libname=`echo "X$1" | sed -e 's/^X--lib=//'`
1160         supplied_libname=true
1161         shift ;;
1162       --source-base )
1163         shift
1164         if test $# = 0; then
1165           func_fatal_error "missing argument for --source-base"
1166         fi
1167         sourcebase=$1
1168         shift ;;
1169       --source-base=* )
1170         sourcebase=`echo "X$1" | sed -e 's/^X--source-base=//'`
1171         shift ;;
1172       --m4-base )
1173         shift
1174         if test $# = 0; then
1175           func_fatal_error "missing argument for --m4-base"
1176         fi
1177         m4base=$1
1178         shift ;;
1179       --m4-base=* )
1180         m4base=`echo "X$1" | sed -e 's/^X--m4-base=//'`
1181         shift ;;
1182       --po-base )
1183         shift
1184         if test $# = 0; then
1185           func_fatal_error "missing argument for --po-base"
1186         fi
1187         pobase=$1
1188         shift ;;
1189       --po-base=* )
1190         pobase=`echo "X$1" | sed -e 's/^X--po-base=//'`
1191         shift ;;
1192       --doc-base )
1193         shift
1194         if test $# = 0; then
1195           func_fatal_error "missing argument for --doc-base"
1196         fi
1197         docbase=$1
1198         shift ;;
1199       --doc-base=* )
1200         docbase=`echo "X$1" | sed -e 's/^X--doc-base=//'`
1201         shift ;;
1202       --tests-base )
1203         shift
1204         if test $# = 0; then
1205           func_fatal_error "missing argument for --tests-base"
1206         fi
1207         testsbase=$1
1208         shift ;;
1209       --tests-base=* )
1210         testsbase=`echo "X$1" | sed -e 's/^X--tests-base=//'`
1211         shift ;;
1212       --aux-dir )
1213         shift
1214         if test $# = 0; then
1215           func_fatal_error "missing argument for --aux-dir"
1216         fi
1217         auxdir=$1
1218         shift ;;
1219       --aux-dir=* )
1220         auxdir=`echo "X$1" | sed -e 's/^X--aux-dir=//'`
1221         shift ;;
1222       --with-tests | --with-test | --with-tes | --with-te | --with-t)
1223         inctests=true
1224         shift ;;
1225       --with-obsolete | --with-obsolet | --with-obsole | --with-obsol | --with-obso | --with-obs | --with-ob | --with-o)
1226         incobsolete=true
1227         shift ;;
1228       --with-c++-tests | --with-c++-test | --with-c++-tes | --with-c++-te | --with-c++-t | --with-c++- | --with-c++ | --with-c+ | --with-c)
1229         inc_cxx_tests=true
1230         shift ;;
1231       --with-longrunning-tests | --with-longrunning-test | --with-longrunning-tes | --with-longrunning-te | --with-longrunning-t | --with-longrunning- | --with-longrunning | --with-longrunnin | --with-longrunni | --with-longrunn | --with-longrun | --with-longru | --with-longr | --with-long | --with-lon | --with-lo | --with-l)
1232         inc_longrunning_tests=true
1233         shift ;;
1234       --with-privileged-tests | --with-privileged-test | --with-privileged-tes | --with-privileged-te | --with-privileged-t | --with-privileged- | --with-privileged | --with-privilege | --with-privileg | --with-privile | --with-privil | --with-privi | --with-priv | --with-pri | --with-pr | --with-p)
1235         inc_privileged_tests=true
1236         shift ;;
1237       --with-unportable-tests | --with-unportable-test | --with-unportable-tes | --with-unportable-te | --with-unportable-t | --with-unportable- | --with-unportable | --with-unportabl | --with-unportab | --with-unporta | --with-unport | --with-unpor | --with-unpo | --with-unp | --with-un | --with-u)
1238         inc_unportable_tests=true
1239         shift ;;
1240       --with-all-tests | --with-all-test | --with-all-tes | --with-all-te | --with-all-t | --with-all- | --with-all | --with-al | --with-a)
1241         inc_all_tests=true
1242         shift ;;
1243       --without-tests | --without-test | --without-tes | --without-te | --without-t)
1244         inctests=false
1245         shift ;;
1246       --without-c++-tests | --without-c++-test | --without-c++-tes | --without-c++-te | --without-c++-t | --without-c++- | --without-c++ | --without-c+ | --without-c)
1247         excl_cxx_tests=true
1248         shift ;;
1249       --without-longrunning-tests | --without-longrunning-test | --without-longrunning-tes | --without-longrunning-te | --without-longrunning-t | --without-longrunning- | --without-longrunning | --without-longrunnin | --without-longrunni | --without-longrunn | --without-longrun | --without-longru | --without-longr | --without-long | --without-lon | --without-lo | --without-l)
1250         excl_longrunning_tests=true
1251         shift ;;
1252       --without-privileged-tests | --without-privileged-test | --without-privileged-tes | --without-privileged-te | --without-privileged-t | --without-privileged- | --without-privileged | --without-privilege | --without-privileg | --without-privile | --without-privil | --without-privi | --without-priv | --without-pri | --without-pr | --without-p)
1253         excl_privileged_tests=true
1254         shift ;;
1255       --without-unportable-tests | --without-unportable-test | --without-unportable-tes | --without-unportable-te | --without-unportable-t | --without-unportable- | --without-unportable | --without-unportabl | --without-unportab | --without-unporta | --without-unport | --without-unpor | --without-unpo | --without-unp | --without-un | --without-u)
1256         excl_unportable_tests=true
1257         shift ;;
1258       --single-configure | --single-configur | --single-configu | --single-config | --single-confi | --single-conf | --single-con | --single-con | --single-co | --single-c | --single- | --single | --singl | --sing | --sin | --si)
1259         single_configure=true
1260         shift ;;
1261       --avoid )
1262         shift
1263         if test $# = 0; then
1264           func_fatal_error "missing argument for --avoid"
1265         fi
1266         func_append avoidlist " $1"
1267         shift ;;
1268       --avoid=* )
1269         arg=`echo "X$1" | sed -e 's/^X--avoid=//'`
1270         func_append avoidlist " $arg"
1271         shift ;;
1272       --conditional-dependencies | --conditional-dependencie | --conditional-dependenci | --conditional-dependenc | --conditional-dependen | --conditional-depende | --conditional-depend | --conditional-depen | --conditional-depe | --conditional-dep | --conditional-de | --conditional-d | --conditional- | --conditional | --conditiona | --condition | --conditio | --conditi | --condit | --condi | --cond | --con)
1273         cond_dependencies=true
1274         shift ;;
1275       --no-conditional-dependencies | --no-conditional-dependencie | --no-conditional-dependenci | --no-conditional-dependenc | --no-conditional-dependen | --no-conditional-depende | --no-conditional-depend | --no-conditional-depen | --no-conditional-depe | --no-conditional-dep | --no-conditional-de | --no-conditional-d | --no-conditional- | --no-conditional | --no-conditiona | --no-condition | --no-conditio | --no-conditi | --no-condit | --no-condi | --no-cond | --no-con | --no-co)
1276         cond_dependencies=false
1277         shift ;;
1278       --lgpl )
1279         lgpl=yes
1280         shift ;;
1281       --lgpl=* )
1282         arg=`echo "X$1" | sed -e 's/^X--lgpl=//'`
1283         case "$arg" in
1284           2 | 3) ;;
1285           *) func_fatal_error "invalid LGPL version number for --lgpl" ;;
1286         esac
1287         lgpl=$arg
1288         shift ;;
1289       --makefile-name )
1290         shift
1291         if test $# = 0; then
1292           func_fatal_error "missing argument for --makefile-name"
1293         fi
1294         makefile_name="$1"
1295         shift ;;
1296       --makefile-name=* )
1297         makefile_name=`echo "X$1" | sed -e 's/^X--makefile-name=//'`
1298         shift ;;
1299       --libtool )
1300         libtool=true
1301         shift ;;
1302       --no-libtool )
1303         libtool=false
1304         shift ;;
1305       --macro-prefix )
1306         shift
1307         if test $# = 0; then
1308           func_fatal_error "missing argument for --macro-prefix"
1309         fi
1310         macro_prefix="$1"
1311         shift ;;
1312       --macro-prefix=* )
1313         macro_prefix=`echo "X$1" | sed -e 's/^X--macro-prefix=//'`
1314         shift ;;
1315       --po-domain )
1316         shift
1317         if test $# = 0; then
1318           func_fatal_error "missing argument for --po-domain"
1319         fi
1320         po_domain="$1"
1321         shift ;;
1322       --po-domain=* )
1323         po_domain=`echo "X$1" | sed -e 's/^X--po-domain=//'`
1324         shift ;;
1325       --witness-c-macro )
1326         shift
1327         if test $# = 0; then
1328           func_fatal_error "missing argument for --witness-c-macro"
1329         fi
1330         witness_c_macro="$1"
1331         shift ;;
1332       --witness-c-macro=* )
1333         witness_c_macro=`echo "X$1" | sed -e 's/^X--witness-c-macro=//'`
1334         shift ;;
1335       --vc-files )
1336         vc_files=true
1337         shift ;;
1338       --no-vc-files )
1339         vc_files=false
1340         shift ;;
1341       --no-changelog | --no-changelo | --no-changel | --no-change | --no-chang | --no-chan | --no-cha | --no-ch )
1342         # A no-op for backward compatibility.
1343         shift ;;
1344       --dry-run )
1345         doit=false
1346         shift ;;
1347       -s | --symbolic | --symboli | --symbol | --symbo | --symb | --symlink | --symlin | --symli | --syml | --sym | --sy )
1348         symbolic=true
1349         shift ;;
1350       --local-symlink | --local-symlin | --local-symli | --local-syml | --local-sym | --local-sy | --local-s )
1351         lsymbolic=true
1352         shift ;;
1353       -S | --more-symlinks | --more-symlink | --more-symlin | --more-symli | --more-syml | --more-sym | --more-sy | --more-s | --more- | --more | --mor | --mo )
1354         symbolic=true
1355         do_copyrights=
1356         shift ;;
1357       --help | --hel | --he | --h )
1358         func_usage
1359         func_exit $? ;;
1360       --version | --versio | --versi | --vers )
1361         func_version
1362         func_exit $? ;;
1363       -- )
1364         # Stop option processing
1365         shift
1366         break ;;
1367       -* )
1368         echo "gnulib-tool: unknown option $1" 1>&2
1369         echo "Try 'gnulib-tool --help' for more information." 1>&2
1370         func_exit 1 ;;
1371       * )
1372         break ;;
1373     esac
1374   done
1375
1376   if case "$mode" in import | add-import | remove-import) true;; *) false;; esac; then
1377     if test -n "$excl_cxx_tests" || test -n "$excl_longrunning_tests" \
1378        || test -n "$excl_privileged_tests" || test -n "$excl_unportable_tests" \
1379        || test "$single_configure" != false; then
1380       echo "gnulib-tool: invalid options for '$mode' mode" 1>&2
1381       echo "Try 'gnulib-tool --help' for more information." 1>&2
1382       func_exit 1
1383     fi
1384   fi
1385   if test "$mode" = update; then
1386     if test $# != 0; then
1387       echo "gnulib-tool: too many arguments in 'update' mode" 1>&2
1388       echo "Try 'gnulib-tool --help' for more information." 1>&2
1389       echo "If you really want to modify the gnulib configuration of your project," 1>&2
1390       echo "you need to use 'gnulib --import' - at your own risk!" 1>&2
1391       func_exit 1
1392     fi
1393     if test -n "$local_gnulib_path" || test -n "$supplied_libname" \
1394        || test -n "$sourcebase" || test -n "$m4base" || test -n "$pobase" \
1395        || test -n "$docbase" || test -n "$testsbase" || test -n "$auxdir" \
1396        || test -n "$inctests" || test -n "$incobsolete" \
1397        || test -n "$inc_cxx_tests" || test -n "$inc_longrunning_tests" \
1398        || test -n "$inc_privileged_tests" || test -n "$inc_unportable_tests" \
1399        || test -n "$inc_all_tests" \
1400        || test -n "$excl_cxx_tests" || test -n "$excl_longrunning_tests" \
1401        || test -n "$excl_privileged_tests" || test -n "$excl_unportable_tests" \
1402        || test -n "$avoidlist" || test -n "$lgpl" || test -n "$makefile_name" \
1403        || test -n "$macro_prefix" || test -n "$po_domain" \
1404        || test -n "$witness_c_macro" || test -n "$vc_files"; then
1405       echo "gnulib-tool: invalid options for 'update' mode" 1>&2
1406       echo "Try 'gnulib-tool --help' for more information." 1>&2
1407       echo "If you really want to modify the gnulib configuration of your project," 1>&2
1408       echo "you need to use 'gnulib --import' - at your own risk!" 1>&2
1409       func_exit 1
1410     fi
1411   fi
1412   if test -n "$pobase" && test -z "$po_domain"; then
1413     echo "gnulib-tool: together with --po-base, you need to specify --po-domain" 1>&2
1414     echo "Try 'gnulib-tool --help' for more information." 1>&2
1415     func_exit 1
1416   fi
1417   if test -z "$pobase" && test -n "$po_domain"; then
1418     func_warning "--po-domain has no effect without a --po-base option"
1419   fi
1420   # Canonicalize the inctests variable.
1421   case "$mode" in
1422     import | add-import | remove-import | update)
1423       if test -z "$inctests"; then
1424         inctests=false
1425       fi
1426       ;;
1427     create-testdir | create-megatestdir | test | megatest)
1428       if test -z "$inctests"; then
1429         inctests=true
1430       fi
1431       ;;
1432   esac
1433   # Now the only possible values of "$inctests" are true and false
1434   # (or blank but then it is irrelevant).
1435   if test "$cond_dependencies" = true && test "$inctests" = true; then
1436     echo "gnulib-tool: option --conditional-dependencies is not supported with --with-tests" 1>&2
1437     func_exit 1
1438   fi
1439
1440   # Determine the minimum supported autoconf version from the project's
1441   # configure.ac.
1442   DEFAULT_AUTOCONF_MINVERSION="2.59"
1443   autoconf_minversion=
1444   configure_ac=
1445   if case "$mode" in import | add-import | remove-import | update) true;; *) false;; esac \
1446      && test -n "$destdir"; then
1447     if test -f "$destdir"/configure.ac; then
1448       configure_ac="$destdir/configure.ac"
1449     else
1450       if test -f "$destdir"/configure.in; then
1451         configure_ac="$destdir/configure.in"
1452       fi
1453     fi
1454   else
1455     if test -f configure.ac; then
1456       configure_ac="configure.ac"
1457     else
1458       if test -f configure.in; then
1459         configure_ac="configure.in"
1460       fi
1461     fi
1462   fi
1463   if test -n "$configure_ac"; then
1464     # Use sed, not autoconf --trace, to look for the AC_PREREQ invocation,
1465     # because when some m4 files are omitted from a version control repository,
1466     # "autoconf --trace=AC_PREREQ" fails with an error message like this:
1467     #   m4: aclocal.m4:851: Cannot open m4/absolute-header.m4: No such file or directory
1468     #   autom4te: m4 failed with exit status: 1
1469     prereqs=
1470     my_sed_traces='
1471       s,#.*$,,
1472       s,^dnl .*$,,
1473       s, dnl .*$,,
1474       /AC_PREREQ/ {
1475         s,^.*AC_PREREQ([[ ]*\([^])]*\).*$,\1,p
1476       }'
1477     prereqs=`sed -n -e "$my_sed_traces" < "$configure_ac"`
1478     if test -n "$prereqs"; then
1479       autoconf_minversion=`
1480         for version in $prereqs; do echo $version; done |
1481         LC_ALL=C sort -nru | sed -e 1q
1482       `
1483     fi
1484   fi
1485   if test -z "$autoconf_minversion"; then
1486     autoconf_minversion=$DEFAULT_AUTOCONF_MINVERSION
1487   fi
1488   case "$autoconf_minversion" in
1489     1.* | 2.[0-4]* | 2.5[0-8]*)
1490       func_fatal_error "minimum supported autoconf version is 2.59. Try adding AC_PREREQ([$DEFAULT_AUTOCONF_MINVERSION]) to your configure.ac." ;;
1491   esac
1492
1493   # Remove trailing slashes from the directory names. This is necessary for
1494   # m4base (to avoid an error in func_import) and optional for the others.
1495   sed_trimtrailingslashes='s,\([^/]\)//*$,\1,'
1496   old_local_gnulib_path=$local_gnulib_path
1497   save_IFS=$IFS
1498   IFS=:
1499   local_gnulib_path=
1500   for dir in $old_local_gnulib_path
1501   do
1502     case "$dir" in
1503       */ ) dir=`echo "$dir" | sed -e "$sed_trimtrailingslashes"` ;;
1504     esac
1505     func_path_append local_gnulib_path "$dir"
1506   done
1507   IFS=$save_IFS
1508   case "$sourcebase" in
1509     */ ) sourcebase=`echo "$sourcebase" | sed -e "$sed_trimtrailingslashes"` ;;
1510   esac
1511   case "$m4base" in
1512     */ ) m4base=`echo "$m4base" | sed -e "$sed_trimtrailingslashes"` ;;
1513   esac
1514   case "$pobase" in
1515     */ ) pobase=`echo "$pobase" | sed -e "$sed_trimtrailingslashes"` ;;
1516   esac
1517   case "$docbase" in
1518     */ ) docbase=`echo "$docbase" | sed -e "$sed_trimtrailingslashes"` ;;
1519   esac
1520   case "$testsbase" in
1521     */ ) testsbase=`echo "$testsbase" | sed -e "$sed_trimtrailingslashes"` ;;
1522   esac
1523   case "$auxdir" in
1524     */ ) auxdir=`echo "$auxdir" | sed -e "$sed_trimtrailingslashes"` ;;
1525   esac
1526 }
1527
1528 func_gnulib_dir
1529 func_tmpdir
1530 trap 'exit_status=$?
1531       if test "$signal" != 0; then
1532         echo "caught signal $signal" >&2
1533       fi
1534       rm -rf "$tmp"
1535       exit $exit_status' 0
1536 for signal in 1 2 3 13 15; do
1537   trap '{ signal='$signal'; func_exit 1; }' $signal
1538 done
1539 signal=0
1540
1541 # Note: The 'eval' silences stderr output in dash.
1542 if (declare -A x && { x[f/2]='foo'; x[f/3]='bar'; eval test '${x[f/2]}' = foo; }) 2>/dev/null; then
1543   # Zsh 4 and Bash 4 have associative arrays.
1544   have_associative=true
1545 else
1546   # For other shells, use 'eval' with computed shell variable names.
1547   have_associative=false
1548 fi
1549
1550 # func_lookup_local_file_cb dir file
1551 # return true and set func_lookup_local_file_result if the file 'dir/file'
1552 # exists
1553 func_lookup_local_file_cb ()
1554 {
1555   test -n "$func_lookup_local_file_result" && return 1 # already found?
1556   test -f "$1/$2" || return 1
1557   func_lookup_local_file_result=$1/$2
1558   :
1559 }
1560
1561 # func_lookup_local_file file
1562 # looks up a file in $local_gnulib_path.
1563 # Input:
1564 # - local_gnulib_path  from --local-dir
1565 # Output:
1566 # - func_lookup_local_file_result  name of the file, valid only when the
1567 #                   function succeeded.
1568 func_lookup_local_file ()
1569 {
1570   func_lookup_local_file_result=
1571   func_path_foreach "$local_gnulib_path" func_lookup_local_file_cb %dir% "$1"
1572 }
1573
1574 # func_lookup_file file
1575 # looks up a file in $local_gnulib_path or $gnulib_dir, or combines it through
1576 # 'patch'.
1577 # Input:
1578 # - local_gnulib_path  from --local-dir
1579 # Output:
1580 # - lookedup_file   name of the merged (combined) file
1581 # - lookedup_tmp    true if it is located in the tmp directory, blank otherwise
1582 func_lookup_file ()
1583 {
1584   lkfile="$1"
1585   if func_lookup_local_file "$lkfile"; then
1586     lookedup_file=$func_lookup_local_file_result
1587     lookedup_tmp=
1588   else
1589     if test -f "$gnulib_dir/$lkfile"; then
1590       if func_lookup_local_file "$lkfile.diff"; then
1591         lkbase=`echo "$lkfile" | sed -e 's,^.*/,,'`
1592         rm -f "$tmp/$lkbase"
1593         cp "$gnulib_dir/$lkfile" "$tmp/$lkbase"
1594         patch -s "$tmp/$lkbase" < "$func_lookup_local_file_result" >&2 \
1595           || func_fatal_error "patch file $func_lookup_local_file_result didn't apply cleanly"
1596         lookedup_file="$tmp/$lkbase"
1597         lookedup_tmp=true
1598       else
1599         lookedup_file="$gnulib_dir/$lkfile"
1600         lookedup_tmp=
1601       fi
1602     else
1603       func_fatal_error "file $gnulib_dir/$lkfile not found"
1604     fi
1605   fi
1606 }
1607
1608 # func_sanitize_modulelist
1609 # receives a list of possible module names on standard input, one per line.
1610 # It removes those which are just file names unrelated to modules, and outputs
1611 # the resulting list to standard output, one per line.
1612 func_sanitize_modulelist ()
1613 {
1614   sed -e '/^ChangeLog$/d' -e '/\/ChangeLog$/d' \
1615       -e '/^COPYING$/d' -e '/\/COPYING$/d' \
1616       -e '/^README$/d' -e '/\/README$/d' \
1617       -e '/^TEMPLATE$/d' \
1618       -e '/^TEMPLATE-EXTENDED$/d' \
1619       -e '/^TEMPLATE-TESTS$/d' \
1620       -e '/^\..*/d' \
1621       -e '/~$/d'
1622 }
1623
1624
1625 # func_modules_in_dir dir
1626 # outputs all module files in dir to standard output.
1627 func_modules_in_dir ()
1628 {
1629   (test -d "$1" && cd "$1" && find modules -type f -print)
1630 }
1631
1632 # func_all_modules
1633 # Input:
1634 # - local_gnulib_path  from --local-dir
1635 func_all_modules ()
1636 {
1637   # Filter out metainformation files like README, which are not modules.
1638   # Filter out unit test modules; they can be retrieved through
1639   # --extract-tests-module if desired.
1640   {
1641     (cd "$gnulib_dir" && find modules -type f -print | sed -e 's,^modules/,,')
1642     func_path_foreach "$local_gnulib_path" func_modules_in_dir %dir% | sed -e 's,^modules/,,' -e 's,\.diff$,,'
1643   } \
1644       | func_sanitize_modulelist \
1645       | sed -e '/-tests$/d' \
1646       | LC_ALL=C sort -u
1647 }
1648
1649 # func_exists_local_module dir module
1650 # returns true if module exists in dir
1651 func_exists_local_module ()
1652 {
1653     test -d "$1/modules" && test -f "$1/modules/$2";
1654 }
1655
1656 # func_exists_module module
1657 # tests whether a module, given by name, exists
1658 # Input:
1659 # - local_gnulib_path  from --local-dir
1660 func_exists_module ()
1661 {
1662   { test -f "$gnulib_dir/modules/$1" \
1663     || func_path_foreach "$local_gnulib_path" func_exists_local_module %dir% "$1" ; } \
1664   && test "ChangeLog" != "$1" \
1665   && test "COPYING" != "$1" \
1666   && test "README" != "$1" \
1667   && test "TEMPLATE" != "$1" \
1668   && test "TEMPLATE-EXTENDED" != "$1" \
1669   && test "TEMPLATE-TESTS" != "$1"
1670 }
1671
1672 # func_verify_module
1673 # verifies a module name
1674 # Input:
1675 # - local_gnulib_path  from --local-dir
1676 # - module          module name argument
1677 func_verify_module ()
1678 {
1679   if func_exists_module "$module"; then
1680     # OK, $module is a correct module name.
1681     # Verify that building the module description with 'patch' succeeds.
1682     func_lookup_file "modules/$module"
1683   else
1684     func_warning "module $module doesn't exist"
1685     module=
1686   fi
1687 }
1688
1689 # func_verify_nontests_module
1690 # verifies a module name, excluding tests modules
1691 # Input:
1692 # - local_gnulib_path  from --local-dir
1693 # - module          module name argument
1694 func_verify_nontests_module ()
1695 {
1696   case "$module" in
1697     *-tests ) module= ;;
1698     * ) func_verify_module ;;
1699   esac
1700 }
1701
1702 # func_verify_tests_module
1703 # verifies a module name, considering only tests modules
1704 # Input:
1705 # - local_gnulib_path  from --local-dir
1706 # - module          module name argument
1707 func_verify_tests_module ()
1708 {
1709   case "$module" in
1710     *-tests ) func_verify_module ;;
1711     * ) module= ;;
1712   esac
1713 }
1714
1715 # Suffix of a sed expression that extracts a particular field from a
1716 # module description.
1717 # A field starts with a line that contains a keyword, such as 'Description',
1718 # followed by a colon and optional whitespace. All following lines, up to
1719 # the next field (or end of file if there is none) form the contents of the
1720 # field.
1721 # An absent field is equivalent to a field with empty contents.
1722 # NOTE: Keep this in sync with sed_extract_cache_prog below!
1723 sed_extract_prog=':[     ]*$/ {
1724   :a
1725     n
1726     s/^Description:[     ]*$//
1727     s/^Comment:[         ]*$//
1728     s/^Status:[  ]*$//
1729     s/^Notice:[  ]*$//
1730     s/^Applicability:[   ]*$//
1731     s/^Files:[   ]*$//
1732     s/^Depends-on:[      ]*$//
1733     s/^configure\.ac-early:[     ]*$//
1734     s/^configure\.ac:[   ]*$//
1735     s/^Makefile\.am:[    ]*$//
1736     s/^Include:[         ]*$//
1737     s/^Link:[    ]*$//
1738     s/^License:[         ]*$//
1739     s/^Maintainer:[      ]*$//
1740     tb
1741     p
1742     ba
1743   :b
1744 }'
1745
1746 # Piece of a sed expression that converts a field header line to a shell
1747 # variable name,
1748 # NOTE: Keep this in sync with sed_extract_prog above!
1749 sed_extract_field_header='
1750   s/^Description:[       ]*$/description/
1751   s/^Comment:[   ]*$/comment/
1752   s/^Status:[    ]*$/status/
1753   s/^Notice:[    ]*$/notice/
1754   s/^Applicability:[     ]*$/applicability/
1755   s/^Files:[     ]*$/files/
1756   s/^Depends-on:[        ]*$/dependson/
1757   s/^configure\.ac-early:[       ]*$/configureac_early/
1758   s/^configure\.ac:[     ]*$/configureac/
1759   s/^Makefile\.am:[      ]*$/makefile/
1760   s/^Include:[   ]*$/include/
1761   s/^Link:[      ]*$/link/
1762   s/^License:[   ]*$/license/
1763   s/^Maintainer:[        ]*$/maintainer/'
1764
1765 if $modcache; then
1766
1767   if $have_associative; then
1768
1769     # Declare the associative arrays.
1770     declare -A modcache_cached
1771     sed_to_declare_statement='s|^.*/\([a-zA-Z0-9_]*\)/$|declare -A modcache_\1|p'
1772     declare_script=`echo "$sed_extract_field_header" | sed -n -e "$sed_to_declare_statement"`
1773     eval "$declare_script"
1774
1775   else
1776
1777     # func_cache_var module
1778     # computes the cache variable name corresponding to $module.
1779     # Note: This computation can map different module names to the same
1780     # cachevar (such as 'foo-bar', 'foo_bar', or 'foo/bar'); the caller has
1781     # to protect against this case.
1782     # Output:
1783     # - cachevar               a shell variable name
1784     if (f=foo; eval echo '${f//o/e}') < /dev/null 2>/dev/null | grep fee >/dev/null; then
1785       # Bash 2.0 and newer, ksh, and zsh support the syntax
1786       #   ${param//pattern/replacement}
1787       # as a shorthand for
1788       #   `echo "$param" | sed -e "s/pattern/replacement/g"`.
1789       # Note: The 'eval' is necessary for dash and NetBSD /bin/sh.
1790       eval 'func_cache_var ()
1791       {
1792         cachevar=c_${1//[!a-zA-Z0-9_]/_}
1793       }'
1794     else
1795       func_cache_var ()
1796       {
1797         case $1 in
1798           *[!a-zA-Z0-9_]*)
1799             cachevar=c_`echo "$1" | LC_ALL=C sed -e 's/[^a-zA-Z0-9_]/_/g'` ;;
1800           *)
1801             cachevar=c_$1 ;;
1802         esac
1803       }
1804     fi
1805
1806   fi
1807
1808   # func_init_sed_convert_to_cache_statements
1809   # Input:
1810   # - modcachevar_assignment
1811   # Output:
1812   # - sed_convert_to_cache_statements
1813   func_init_sed_convert_to_cache_statements ()
1814   {
1815     # 'sed' script that turns a module description into shell script
1816     # assignments, suitable to be eval'ed.  All active characters are escaped.
1817     # This script turns
1818     #   Description:
1819     #   Some module's description
1820     #
1821     #   Files:
1822     #   lib/file.h
1823     # into:
1824     #   modcache_description[$1]=\
1825     #   'Some module'"'"'s description
1826     #   '
1827     #   modcache_files[$1]=\
1828     #   'lib/file.h'
1829     # or:
1830     #   c_MODULE_description_set=set; c_MODULE_description=\
1831     #   'Some module'"'"'s description
1832     #   '
1833     #   c_MODULE_files_set=set; c_MODULE_files=\
1834     #   'lib/file.h'
1835     # The script consists of two parts:
1836     # 1) Ignore the lines before the first field header.
1837     # 2) A loop, treating non-field-header lines by escaping single quotes
1838     #    and adding a closing quote in the last line,
1839     sed_convert_to_cache_statements="
1840       :llla
1841         # Here we have not yet seen a field header.
1842
1843         # See if the current line contains a field header.
1844         t llla1
1845         :llla1
1846         ${sed_extract_field_header}
1847         t lllb
1848
1849         # No field header. Ignore the line.
1850
1851         # Read the next line. Upon EOF, just exit.
1852         n
1853       b llla
1854
1855       :lllb
1856         # The current line contains a field header.
1857
1858         # Turn it into the beginning of an assignment.
1859         s/^\\(.*\\)\$/${modcachevar_assignment}\\\\/
1860
1861         # Move it to the hold space. Don't print it yet,
1862         # because we want no assignment if the field is empty.
1863         h
1864
1865         # Read the next line.
1866         # Upon EOF, the field was empty. Print no assignment. Just exit.
1867         n
1868
1869         # See if the current line contains a field header.
1870         t lllb1
1871         :lllb1
1872         ${sed_extract_field_header}
1873         # If it is, the previous field was empty. Print no assignment.
1874         t lllb
1875
1876         # Not a field header.
1877
1878         # Print the previous line, held in the hold space.
1879         x
1880         p
1881         x
1882
1883         # Transform single quotes.
1884         s/'/'\"'\"'/g
1885
1886         # Prepend a single quote.
1887         s/^/'/
1888
1889         :lllc
1890
1891           # Move it to the hold space.
1892           h
1893
1894           # Read the next line.
1895           # Upon EOF, branch.
1896           \${
1897             b llle
1898           }
1899           n
1900
1901           # See if the current line contains a field header.
1902           t lllc1
1903           :lllc1
1904           ${sed_extract_field_header}
1905           t llld
1906
1907           # Print the previous line, held in the hold space.
1908           x
1909           p
1910           x
1911
1912           # Transform single quotes.
1913           s/'/'\"'\"'/g
1914
1915         b lllc
1916
1917         :llld
1918         # A field header.
1919         # Print the previous line, held in the hold space, with a single quote
1920         # to end the assignment.
1921         x
1922         s/\$/'/
1923         p
1924         x
1925
1926       b lllb
1927
1928       :llle
1929       # EOF seen.
1930       # Print the previous line, held in the hold space, with a single quote
1931       # to end the assignment.
1932       x
1933       s/\$/'/
1934       p
1935       # Exit.
1936       n
1937       "
1938     if ! $sed_comments; then
1939       # Remove comments.
1940       sed_convert_to_cache_statements=`echo "$sed_convert_to_cache_statements" \
1941                                        | sed -e 's/^ *//' -e 's/^#.*//'`
1942     fi
1943   }
1944
1945   if $have_associative; then
1946     # sed_convert_to_cache_statements does not depend on the module.
1947     modcachevar_assignment='modcache_\1[$1]='
1948     func_init_sed_convert_to_cache_statements
1949   fi
1950
1951   # func_cache_lookup_module module
1952   #
1953   # looks up a module, like 'func_lookup_file modules/$module', and stores all
1954   # of its relevant data in a cache in the memory of the processing shell.  If
1955   # already cached, it does not look it up again, thus saving file access time.
1956   # Parameters:
1957   # - module                             non-empty string
1958   # Output if $have_associative:
1959   # - modcache_cached[$module]           set to yes
1960   # - modcache_description[$module] ==
1961   # - modcache_status[$module]        \  set to the field's value, minus the
1962   # - ...                             /  final newline,
1963   # - modcache_maintainer[$module]  ==   or unset if the field's value is empty
1964   # Output if ! $have_associative:
1965   # - cachevar                           a shell variable name
1966   # - ${cachevar}_cached                 set to $module
1967   # - ${cachevar}_description       ==
1968   # - ${cachevar}_status              \  set to the field's value, minus the
1969   # - ...                             /  final newline,
1970   # - ${cachevar}_maintainer        ==   or unset if the field's value is empty
1971   # - ${cachevar}_description_set   ==
1972   # - ${cachevar}_status_set          \  set to non-empty if the field's value
1973   # - ...                             /  is non-empty,
1974   # - ${cachevar}_maintainer_set    ==   or unset if the field's value is empty
1975   func_cache_lookup_module ()
1976   {
1977     if $have_associative; then
1978       eval 'cached=${modcache_cached[$1]}'
1979     else
1980       func_cache_var "$1"
1981       eval "cached=\"\$${cachevar}_cached\""
1982     fi
1983     if test -z "$cached"; then
1984       # Not found in cache. Look it up on the file system.
1985       func_lookup_file "modules/$1"
1986       if $have_associative; then
1987         eval 'modcache_cached[$1]=yes'
1988       else
1989         eval "${cachevar}_cached=\"\$1\""
1990       fi
1991       if ! $have_associative; then
1992         # sed_convert_to_cache_statements depends on the module.
1993         modcachevar_assignment="${cachevar}"'_\1_set=set; '"${cachevar}"'_\1='
1994         func_init_sed_convert_to_cache_statements
1995       fi
1996       cache_statements=`LC_ALL=C sed -n -e "$sed_convert_to_cache_statements" < "$lookedup_file"`
1997       eval "$cache_statements"
1998     else
1999       if ! $have_associative; then
2000         if test "$1" != "$cached"; then
2001           func_fatal_error "cache variable collision between $1 and $cached"
2002         fi
2003       fi
2004     fi
2005   }
2006
2007 fi
2008
2009 # func_get_description module
2010 # Input:
2011 # - local_gnulib_path  from --local-dir
2012 # - modcache          true or false, from --cache-modules/--no-cache-modules
2013 func_get_description ()
2014 {
2015   if ! $modcache; then
2016     func_lookup_file "modules/$1"
2017     sed -n -e "/^Description$sed_extract_prog" < "$lookedup_file"
2018   else
2019     func_cache_lookup_module "$1"
2020     # Output the field's value, including the final newline (if any).
2021     if $have_associative; then
2022       if eval 'test -n "${modcache_description[$1]+set}"'; then
2023         eval 'echo "${modcache_description[$1]}"'
2024       fi
2025     else
2026       eval "field_set=\"\$${cachevar}_description_set\""
2027       if test -n "$field_set"; then
2028         eval "field_value=\"\$${cachevar}_description\""
2029         echo "${field_value}"
2030       fi
2031     fi
2032   fi
2033 }
2034
2035 # func_get_comment module
2036 # Input:
2037 # - local_gnulib_path  from --local-dir
2038 # - modcache          true or false, from --cache-modules/--no-cache-modules
2039 func_get_comment ()
2040 {
2041   if ! $modcache; then
2042     func_lookup_file "modules/$1"
2043     sed -n -e "/^Comment$sed_extract_prog" < "$lookedup_file"
2044   else
2045     func_cache_lookup_module "$1"
2046     # Output the field's value, including the final newline (if any).
2047     if $have_associative; then
2048       if eval 'test -n "${modcache_comment[$1]+set}"'; then
2049         eval 'echo "${modcache_comment[$1]}"'
2050       fi
2051     else
2052       eval "field_set=\"\$${cachevar}_comment_set\""
2053       if test -n "$field_set"; then
2054         eval "field_value=\"\$${cachevar}_comment\""
2055         echo "${field_value}"
2056       fi
2057     fi
2058   fi
2059 }
2060
2061 # func_get_status module
2062 # Input:
2063 # - local_gnulib_path  from --local-dir
2064 # - modcache          true or false, from --cache-modules/--no-cache-modules
2065 func_get_status ()
2066 {
2067   if ! $modcache; then
2068     func_lookup_file "modules/$1"
2069     sed -n -e "/^Status$sed_extract_prog" < "$lookedup_file"
2070   else
2071     func_cache_lookup_module "$1"
2072     # Output the field's value, including the final newline (if any).
2073     if $have_associative; then
2074       if eval 'test -n "${modcache_status[$1]+set}"'; then
2075         eval 'echo "${modcache_status[$1]}"'
2076       fi
2077     else
2078       eval "field_set=\"\$${cachevar}_status_set\""
2079       if test -n "$field_set"; then
2080         eval "field_value=\"\$${cachevar}_status\""
2081         echo "${field_value}"
2082       fi
2083     fi
2084   fi
2085 }
2086
2087 # func_get_notice module
2088 # Input:
2089 # - local_gnulib_path  from --local-dir
2090 # - modcache          true or false, from --cache-modules/--no-cache-modules
2091 func_get_notice ()
2092 {
2093   if ! $modcache; then
2094     func_lookup_file "modules/$1"
2095     sed -n -e "/^Notice$sed_extract_prog" < "$lookedup_file"
2096   else
2097     func_cache_lookup_module "$1"
2098     # Output the field's value, including the final newline (if any).
2099     if $have_associative; then
2100       if eval 'test -n "${modcache_notice[$1]+set}"'; then
2101         eval 'echo "${modcache_notice[$1]}"'
2102       fi
2103     else
2104       eval "field_set=\"\$${cachevar}_notice_set\""
2105       if test -n "$field_set"; then
2106         eval "field_value=\"\$${cachevar}_notice\""
2107         echo "${field_value}"
2108       fi
2109     fi
2110   fi
2111 }
2112
2113 # func_get_applicability module
2114 # Input:
2115 # - local_gnulib_path  from --local-dir
2116 # - modcache          true or false, from --cache-modules/--no-cache-modules
2117 # The expected result (on stdout) is either 'main', or 'tests', or 'all'.
2118 func_get_applicability ()
2119 {
2120   if ! $modcache; then
2121     func_lookup_file "modules/$1"
2122     my_applicability=`sed -n -e "/^Applicability$sed_extract_prog" < "$lookedup_file"`
2123   else
2124     func_cache_lookup_module "$1"
2125     # Get the field's value, without the final newline.
2126     if $have_associative; then
2127       eval 'my_applicability="${modcache_applicability[$1]}"'
2128     else
2129       eval "my_applicability=\"\$${cachevar}_applicability\""
2130     fi
2131   fi
2132   if test -n "$my_applicability"; then
2133     echo $my_applicability
2134   else
2135     # The default is 'main' or 'tests', depending on the module's name.
2136     case $1 in
2137       *-tests) echo "tests";;
2138       *)       echo "main";;
2139     esac
2140   fi
2141 }
2142
2143 # func_get_filelist module
2144 # Input:
2145 # - local_gnulib_path  from --local-dir
2146 # - modcache          true or false, from --cache-modules/--no-cache-modules
2147 func_get_filelist ()
2148 {
2149   if ! $modcache; then
2150     func_lookup_file "modules/$1"
2151     sed -n -e "/^Files$sed_extract_prog" < "$lookedup_file"
2152   else
2153     func_cache_lookup_module "$1"
2154     # Output the field's value, including the final newline (if any).
2155     if $have_associative; then
2156       if eval 'test -n "${modcache_files[$1]+set}"'; then
2157         eval 'echo "${modcache_files[$1]}"'
2158       fi
2159     else
2160       eval "field_set=\"\$${cachevar}_files_set\""
2161       if test -n "$field_set"; then
2162         eval "field_value=\"\$${cachevar}_files\""
2163         echo "${field_value}"
2164       fi
2165     fi
2166   fi
2167   echo m4/00gnulib.m4
2168   echo m4/gnulib-common.m4
2169   case "$autoconf_minversion" in
2170     2.59)
2171       echo m4/onceonly.m4
2172       ;;
2173   esac
2174 }
2175
2176 # func_filter_filelist outputvar separator filelist prefix suffix removed_prefix removed_suffix [added_prefix [added_suffix]]
2177 # stores in outputvar the filtered and processed filelist. Filtering: Only the
2178 # elements starting with prefix and ending with suffix are considered.
2179 # Processing: removed_prefix and removed_suffix are removed from each element,
2180 # added_prefix and added_suffix are added to each element.
2181 # prefix, suffix should not contain shell-special characters.
2182 # removed_prefix, removed_suffix should not contain the characters "$`\{}[]^|.
2183 # added_prefix, added_suffix should not contain the characters \|&.
2184 func_filter_filelist ()
2185 {
2186   if test "$2" != "$nl" \
2187      || { $fast_func_append \
2188           && { test -z "$6" || $fast_func_remove_prefix; } \
2189           && { test -z "$7" || $fast_func_remove_suffix; }; \
2190         }; then
2191     ffflist=
2192     for fff in $3; do
2193       # Do not quote possibly-empty parameters in case patterns,
2194       # AIX and HP-UX ksh won't match them if they are empty.
2195       case "$fff" in
2196         $4*$5)
2197           if test -n "$6"; then
2198             func_remove_prefix fff "$6"
2199           fi
2200           if test -n "$7"; then
2201             func_remove_suffix fff "$7"
2202           fi
2203           fff="$8${fff}$9"
2204           if test -z "$ffflist"; then
2205             ffflist="${fff}"
2206           else
2207             func_append ffflist "$2${fff}"
2208           fi
2209           ;;
2210       esac
2211     done
2212   else
2213     sed_fff_filter="s|^$6\(.*\)$7\$|$8\\1$9|"
2214     ffflist=`for fff in $3; do
2215                case "$fff" in
2216                  $4*$5) echo "$fff" ;;
2217                esac
2218              done | sed -e "$sed_fff_filter"`
2219   fi
2220   eval "$1=\"\$ffflist\""
2221 }
2222
2223 # func_get_dependencies module
2224 # Input:
2225 # - local_gnulib_path  from --local-dir
2226 # - modcache          true or false, from --cache-modules/--no-cache-modules
2227 func_get_dependencies ()
2228 {
2229   # ${module}-tests implicitly depends on ${module}, if that module exists.
2230   case "$1" in
2231     *-tests)
2232       fgd1="$1"
2233       func_remove_suffix fgd1 '-tests'
2234       if func_exists_module "$fgd1"; then
2235         echo "$fgd1"
2236       fi
2237       ;;
2238   esac
2239   # Then the explicit dependencies listed in the module description.
2240   { if ! $modcache; then
2241       func_lookup_file "modules/$1"
2242       sed -n -e "/^Depends-on$sed_extract_prog" < "$lookedup_file"
2243     else
2244       func_cache_lookup_module "$1"
2245       # Output the field's value, including the final newline (if any).
2246       if $have_associative; then
2247         if eval 'test -n "${modcache_dependson[$1]+set}"'; then
2248           eval 'echo "${modcache_dependson[$1]}"'
2249         fi
2250       else
2251         eval "field_set=\"\$${cachevar}_dependson_set\""
2252         if test -n "$field_set"; then
2253           eval "field_value=\"\$${cachevar}_dependson\""
2254           echo "${field_value}"
2255         fi
2256       fi
2257     fi
2258   } \
2259   | sed -e '/^#/d'
2260 }
2261
2262 # func_get_autoconf_early_snippet module
2263 # Input:
2264 # - local_gnulib_path  from --local-dir
2265 # - modcache          true or false, from --cache-modules/--no-cache-modules
2266 func_get_autoconf_early_snippet ()
2267 {
2268   if ! $modcache; then
2269     func_lookup_file "modules/$1"
2270     sed -n -e "/^configure\.ac-early$sed_extract_prog" < "$lookedup_file"
2271   else
2272     func_cache_lookup_module "$1"
2273     # Output the field's value, including the final newline (if any).
2274     if $have_associative; then
2275       if eval 'test -n "${modcache_configureac_early[$1]+set}"'; then
2276         eval 'echo "${modcache_configureac_early[$1]}"'
2277       fi
2278     else
2279       eval "field_set=\"\$${cachevar}_configureac_early_set\""
2280       if test -n "$field_set"; then
2281         eval "field_value=\"\$${cachevar}_configureac_early\""
2282         echo "${field_value}"
2283       fi
2284     fi
2285   fi
2286 }
2287
2288 # func_get_autoconf_snippet module
2289 # Input:
2290 # - local_gnulib_path  from --local-dir
2291 # - modcache          true or false, from --cache-modules/--no-cache-modules
2292 func_get_autoconf_snippet ()
2293 {
2294   if ! $modcache; then
2295     func_lookup_file "modules/$1"
2296     sed -n -e "/^configure\.ac$sed_extract_prog" < "$lookedup_file"
2297   else
2298     func_cache_lookup_module "$1"
2299     # Output the field's value, including the final newline (if any).
2300     if $have_associative; then
2301       if eval 'test -n "${modcache_configureac[$1]+set}"'; then
2302         eval 'echo "${modcache_configureac[$1]}"'
2303       fi
2304     else
2305       eval "field_set=\"\$${cachevar}_configureac_set\""
2306       if test -n "$field_set"; then
2307         eval "field_value=\"\$${cachevar}_configureac\""
2308         echo "${field_value}"
2309       fi
2310     fi
2311   fi
2312 }
2313
2314 # Concatenate lines with trailing slash.
2315 # $1 is an optional filter to restrict the
2316 # concatenation to groups starting with that expression
2317 combine_lines() {
2318   sed -e "/$1.*"'\\$/{
2319     :a
2320     N
2321     s/\\\n/ /
2322     s/\\$/\\/
2323     ta
2324   }'
2325 }
2326
2327 # func_get_automake_snippet_conditional module
2328 # returns the part of the Makefile.am snippet that can be put inside Automake
2329 # conditionals.
2330 # Input:
2331 # - local_gnulib_path  from --local-dir
2332 # - modcache          true or false, from --cache-modules/--no-cache-modules
2333 func_get_automake_snippet_conditional ()
2334 {
2335   if ! $modcache; then
2336     func_lookup_file "modules/$1"
2337     sed -n -e "/^Makefile\.am$sed_extract_prog" < "$lookedup_file"
2338   else
2339     func_cache_lookup_module "$1"
2340     # Output the field's value, including the final newline (if any).
2341     if $have_associative; then
2342       if eval 'test -n "${modcache_makefile[$1]+set}"'; then
2343         eval 'echo "${modcache_makefile[$1]}"'
2344       fi
2345     else
2346       eval "field_set=\"\$${cachevar}_makefile_set\""
2347       if test -n "$field_set"; then
2348         eval "field_value=\"\$${cachevar}_makefile\""
2349         echo "${field_value}"
2350       fi
2351     fi
2352   fi
2353 }
2354
2355 # func_get_automake_snippet_unconditional module
2356 # returns the part of the Makefile.am snippet that must stay outside of
2357 # Automake conditionals.
2358 # Input:
2359 # - local_gnulib_path  from --local-dir
2360 # - modcache          true or false, from --cache-modules/--no-cache-modules
2361 func_get_automake_snippet_unconditional ()
2362 {
2363   case "$1" in
2364     *-tests)
2365       # *-tests module live in tests/, not lib/.
2366       # Synthesize an EXTRA_DIST augmentation.
2367       all_files=`func_get_filelist $1`
2368       func_filter_filelist tests_files " " "$all_files" 'tests/' '' 'tests/' ''
2369       extra_files="$tests_files"
2370       if test -n "$extra_files"; then
2371         echo "EXTRA_DIST +=" $extra_files
2372         echo
2373       fi
2374       ;;
2375     *)
2376       # Synthesize an EXTRA_DIST augmentation.
2377       sed_extract_mentioned_files='s/^lib_SOURCES[       ]*+=[   ]*//p'
2378       already_mentioned_files=` \
2379         { if ! $modcache; then
2380             func_lookup_file "modules/$1"
2381             sed -n -e "/^Makefile\.am$sed_extract_prog" < "$lookedup_file"
2382           else
2383             func_cache_lookup_module "$1"
2384             if $have_associative; then
2385               if eval 'test -n "${modcache_makefile[$1]+set}"'; then
2386                 eval 'echo "${modcache_makefile[$1]}"'
2387               fi
2388             else
2389               eval 'field_set="$'"${cachevar}"'_makefile_set"'
2390               if test -n "$field_set"; then
2391                 eval 'field_value="$'"${cachevar}"'_makefile"'
2392                 echo "${field_value}"
2393               fi
2394             fi
2395           fi
2396         } \
2397         | combine_lines \
2398         | sed -n -e "$sed_extract_mentioned_files" | sed -e 's/#.*//'`
2399       all_files=`func_get_filelist $1`
2400       func_filter_filelist lib_files "$nl" "$all_files" 'lib/' '' 'lib/' ''
2401       # Remove $already_mentioned_files from $lib_files.
2402       echo "$lib_files" | LC_ALL=C sort -u > "$tmp"/lib-files
2403       extra_files=`for f in $already_mentioned_files; do echo $f; done \
2404                    | LC_ALL=C sort -u | LC_ALL=C join -v 2 - "$tmp"/lib-files`
2405       if test -n "$extra_files"; then
2406         echo "EXTRA_DIST +=" $extra_files
2407         echo
2408       fi
2409       # Synthesize also an EXTRA_lib_SOURCES augmentation.
2410       # This is necessary so that automake can generate the right list of
2411       # dependency rules.
2412       # A possible approach would be to use autom4te --trace of the redefined
2413       # AC_LIBOBJ and AC_REPLACE_FUNCS macros when creating the Makefile.am
2414       # (use autom4te --trace, not just grep, so that AC_LIBOBJ invocations
2415       # inside autoconf's built-in macros are not missed).
2416       # But it's simpler and more robust to do it here, based on the file list.
2417       # If some .c file exists and is not used with AC_LIBOBJ - for example,
2418       # a .c file is preprocessed into another .c file for BUILT_SOURCES -,
2419       # automake will generate a useless dependency; this is harmless.
2420       case "$1" in
2421         relocatable-prog-wrapper) ;;
2422         pt_chown) ;;
2423         *)
2424           func_filter_filelist extra_files "$nl" "$extra_files" '' '.c' '' ''
2425           if test -n "$extra_files"; then
2426             echo "EXTRA_lib_SOURCES +=" $extra_files
2427             echo
2428           fi
2429           ;;
2430       esac
2431       # Synthesize an EXTRA_DIST augmentation also for the files in build-aux/.
2432       func_filter_filelist buildaux_files "$nl" "$all_files" 'build-aux/' '' 'build-aux/' ''
2433       if test -n "$buildaux_files"; then
2434         sed_prepend_auxdir='s,^,$(top_srcdir)/'"$auxdir"'/,'
2435         echo "EXTRA_DIST += "`echo "$buildaux_files" | sed -e "$sed_prepend_auxdir"`
2436         echo
2437       fi
2438       # Synthesize an EXTRA_DIST augmentation also for the files from top/.
2439       func_filter_filelist top_files "$nl" "$all_files" 'top/' '' 'top/' ''
2440       if test -n "$top_files"; then
2441         sed_prepend_topdir='s,^,$(top_srcdir)/,'
2442         echo "EXTRA_DIST += "`echo "$top_files" | sed -e "$sed_prepend_topdir"`
2443         echo
2444       fi
2445       ;;
2446   esac
2447 }
2448
2449 # func_get_automake_snippet module
2450 # Input:
2451 # - local_gnulib_path  from --local-dir
2452 # - modcache          true or false, from --cache-modules/--no-cache-modules
2453 func_get_automake_snippet ()
2454 {
2455   func_get_automake_snippet_conditional "$1"
2456   func_get_automake_snippet_unconditional "$1"
2457 }
2458
2459 # func_get_include_directive module
2460 # Input:
2461 # - local_gnulib_path  from --local-dir
2462 # - modcache          true or false, from --cache-modules/--no-cache-modules
2463 func_get_include_directive ()
2464 {
2465   {
2466     if ! $modcache; then
2467       func_lookup_file "modules/$1"
2468       sed -n -e "/^Include$sed_extract_prog" < "$lookedup_file"
2469     else
2470       func_cache_lookup_module "$1"
2471       # Output the field's value, including the final newline (if any).
2472       if $have_associative; then
2473         if eval 'test -n "${modcache_include[$1]+set}"'; then
2474           eval 'echo "${modcache_include[$1]}"'
2475         fi
2476       else
2477         eval "field_set=\"\$${cachevar}_include_set\""
2478         if test -n "$field_set"; then
2479           eval "field_value=\"\$${cachevar}_include\""
2480           echo "${field_value}"
2481         fi
2482       fi
2483     fi
2484   } | sed -e 's/^\(["<]\)/#include \1/'
2485 }
2486
2487 # func_get_link_directive module
2488 # Input:
2489 # - local_gnulib_path  from --local-dir
2490 # - modcache          true or false, from --cache-modules/--no-cache-modules
2491 func_get_link_directive ()
2492 {
2493   if ! $modcache; then
2494     func_lookup_file "modules/$1"
2495     sed -n -e "/^Link$sed_extract_prog" < "$lookedup_file"
2496   else
2497     func_cache_lookup_module "$1"
2498     # Output the field's value, including the final newline (if any).
2499     if $have_associative; then
2500       if eval 'test -n "${modcache_link[$1]+set}"'; then
2501         eval 'echo "${modcache_link[$1]}"'
2502       fi
2503     else
2504       eval "field_set=\"\$${cachevar}_link_set\""
2505       if test -n "$field_set"; then
2506         eval "field_value=\"\$${cachevar}_link\""
2507         echo "${field_value}"
2508       fi
2509     fi
2510   fi
2511 }
2512
2513 # func_get_license_raw module
2514 # Input:
2515 # - local_gnulib_path  from --local-dir
2516 # - modcache          true or false, from --cache-modules/--no-cache-modules
2517 func_get_license_raw ()
2518 {
2519   if ! $modcache; then
2520     func_lookup_file "modules/$1"
2521     sed -n -e "/^License$sed_extract_prog" < "$lookedup_file"
2522   else
2523     func_cache_lookup_module "$1"
2524     # Output the field's value, including the final newline (if any).
2525     if $have_associative; then
2526       if eval 'test -n "${modcache_license[$1]+set}"'; then
2527         eval 'echo "${modcache_license[$1]}"'
2528       fi
2529     else
2530       eval "field_set=\"\$${cachevar}_license_set\""
2531       if test -n "$field_set"; then
2532         eval "field_value=\"\$${cachevar}_license\""
2533         echo "${field_value}"
2534       fi
2535     fi
2536   fi
2537 }
2538
2539 # func_get_license module
2540 # Input:
2541 # - local_gnulib_path  from --local-dir
2542 # - modcache          true or false, from --cache-modules/--no-cache-modules
2543 func_get_license ()
2544 {
2545   # Warn if the License field is missing.
2546   case "$1" in
2547     *-tests ) ;;
2548     * )
2549       license=`func_get_license_raw "$1"`
2550       if test -z "$license"; then
2551         func_warning "module $1 lacks a License"
2552       fi
2553       ;;
2554   esac
2555   {
2556     func_get_license_raw "$1"
2557     # The default is GPL.
2558     echo "GPL"
2559   } | sed -e 's,^ *$,,' | sed -e 1q
2560 }
2561
2562 # func_get_maintainer module
2563 # Input:
2564 # - local_gnulib_path  from --local-dir
2565 # - modcache          true or false, from --cache-modules/--no-cache-modules
2566 func_get_maintainer ()
2567 {
2568   if ! $modcache; then
2569     func_lookup_file "modules/$1"
2570     sed -n -e "/^Maintainer$sed_extract_prog" < "$lookedup_file"
2571   else
2572     func_cache_lookup_module "$1"
2573     # Output the field's value, including the final newline (if any).
2574     if $have_associative; then
2575       if eval 'test -n "${modcache_maintainer[$1]+set}"'; then
2576         eval 'echo "${modcache_maintainer[$1]}"'
2577       fi
2578     else
2579       eval "field_set=\"\$${cachevar}_maintainer_set\""
2580       if test -n "$field_set"; then
2581         eval "field_value=\"\$${cachevar}_maintainer\""
2582         echo "${field_value}"
2583       fi
2584     fi
2585   fi
2586 }
2587
2588 # func_get_tests_module module
2589 # Input:
2590 # - local_gnulib_path  from --local-dir
2591 func_get_tests_module ()
2592 {
2593   # The naming convention for tests modules is hardwired: ${module}-tests.
2594   if test -f "$gnulib_dir/modules/$1"-tests \
2595      || func_path_foreach "$local_gnulib_path" func_exists_local_module %dir% "$1-tests"; then
2596     echo "$1"-tests
2597   fi
2598 }
2599
2600 # func_acceptable module
2601 # tests whether a module is acceptable.
2602 # Input:
2603 # - avoidlist       list of modules to avoid
2604 func_acceptable ()
2605 {
2606   for avoid in $avoidlist; do
2607     if test "$avoid" = "$1"; then
2608       return 1
2609     fi
2610   done
2611   return 0
2612 }
2613
2614 # sed expression to keep the first 32 characters of each line.
2615 sed_first_32_chars='s/^\(................................\).*/\1/'
2616
2617 # func_module_shellfunc_name module
2618 # computes the shell function name that will contain the m4 macros for the module.
2619 # Input:
2620 # - macro_prefix    prefix to use
2621 # Output:
2622 # - shellfunc       shell function name
2623 func_module_shellfunc_name ()
2624 {
2625   case $1 in
2626     *[!a-zA-Z0-9_]*)
2627       shellfunc=func_${macro_prefix}_gnulib_m4code_`echo "$1" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"` ;;
2628     *)
2629       shellfunc=func_${macro_prefix}_gnulib_m4code_$1 ;;
2630   esac
2631 }
2632
2633 # func_module_shellvar_name module
2634 # computes the shell variable name the will be set to true once the m4 macros
2635 # for the module have been executed.
2636 # Output:
2637 # - shellvar        shell variable name
2638 func_module_shellvar_name ()
2639 {
2640   case $1 in
2641     *[!a-zA-Z0-9_]*)
2642       shellvar=${macro_prefix}_gnulib_enabled_`echo "$1" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"` ;;
2643     *)
2644       shellvar=${macro_prefix}_gnulib_enabled_$1 ;;
2645   esac
2646 }
2647
2648 # func_module_conditional_name module
2649 # computes the automake conditional name for the module.
2650 # Output:
2651 # - conditional     name of automake conditional
2652 func_module_conditional_name ()
2653 {
2654   case $1 in
2655     *[!a-zA-Z0-9_]*)
2656       conditional=${macro_prefix}_GNULIB_ENABLED_`echo "$1" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"` ;;
2657     *)
2658       conditional=${macro_prefix}_GNULIB_ENABLED_$1 ;;
2659   esac
2660 }
2661
2662 # func_uncond_add_module B
2663 # notes the presence of B as an unconditional module.
2664 #
2665 # func_conddep_add_module A B cond
2666 # notes the presence of a conditional dependency from module A to module B,
2667 # subject to the condition that A is enabled and cond is true.
2668 #
2669 # func_cond_module_p B
2670 # tests whether module B is conditional.
2671 #
2672 # func_cond_module_condition A B
2673 # returns the condition when B should be enabled as a dependency of A, once the
2674 # m4 code for A has been executed.
2675 # Output: - condition
2676 #
2677 if $have_associative; then
2678   declare -A conddep_isuncond
2679   declare -A conddep_dependers
2680   declare -A conddep_condition
2681   func_uncond_add_module ()
2682   {
2683     eval 'conddep_isuncond[$1]=true'
2684     eval 'unset conddep_dependers[$1]'
2685   }
2686   func_conddep_add_module ()
2687   {
2688     eval 'isuncond="${conddep_isuncond[$2]}"'
2689     if test -z "$isuncond"; then
2690       # No unconditional dependency to B known at this point.
2691       eval 'conddep_dependers[$2]="${conddep_dependers[$2]} $1"'
2692       eval 'conddep_condition[$1---$2]="$3"'
2693     fi
2694   }
2695   func_cond_module_p ()
2696   {
2697     eval 'previous_dependers="${conddep_dependers[$1]}"'
2698     test -n "$previous_dependers"
2699   }
2700   func_cond_module_condition ()
2701   {
2702     eval 'condition="${conddep_condition[$1---$2]}"'
2703   }
2704 else
2705   func_uncond_add_module ()
2706   {
2707     case $1 in
2708       *[!a-zA-Z0-9_]*)
2709         suffix=`echo "$1" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"` ;;
2710       *)
2711         suffix=$1 ;;
2712     esac
2713     eval 'conddep_isuncond_'"$suffix"'=true'
2714     eval 'unset conddep_dependers_'"$suffix"
2715   }
2716   func_conddep_add_module ()
2717   {
2718     case $2 in
2719       *[!a-zA-Z0-9_]*)
2720         suffix=`echo "$2" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"` ;;
2721       *)
2722         suffix=$2 ;;
2723     esac
2724     eval 'isuncond="${conddep_isuncond_'"$suffix"'}"'
2725     if test -z "$isuncond"; then
2726       eval 'conddep_dependers_'"$suffix"'="${conddep_dependers_'"$suffix"'} $1"'
2727       suffix=`echo "$1---$2" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"`
2728       eval 'conddep_condition_'"$suffix"'="$3"'
2729     fi
2730   }
2731   func_cond_module_p ()
2732   {
2733     case $1 in
2734       *[!a-zA-Z0-9_]*)
2735         suffix=`echo "$1" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"` ;;
2736       *)
2737         suffix=$1 ;;
2738     esac
2739     eval 'previous_dependers="${conddep_dependers_'"$suffix"'}"'
2740     test -n "$previous_dependers"
2741   }
2742   func_cond_module_condition ()
2743   {
2744     suffix=`echo "$1---$2" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"`
2745     eval 'condition="${conddep_condition_'"$suffix"'}"'
2746   }
2747 fi
2748
2749 sed_dependencies_without_conditions='s/ *\[.*//'
2750
2751 # func_modules_transitive_closure
2752 # Input:
2753 # - local_gnulib_path  from --local-dir
2754 # - modcache        true or false, from --cache-modules/--no-cache-modules
2755 # - modules         list of specified modules
2756 # - inctests        true if tests should be included, false otherwise
2757 # - incobsolete     true if obsolete modules among dependencies should be
2758 #                   included, blank otherwise
2759 # - inc_cxx_tests   true if C++ interoperability tests should be included,
2760 #                   blank otherwise
2761 # - inc_longrunning_tests  true if long-runnings tests should be included,
2762 #                          blank otherwise
2763 # - inc_privileged_tests  true if tests that require root privileges should be
2764 #                         included, blank otherwise
2765 # - inc_unportable_tests  true if tests that fail on some platforms should be
2766 #                         included, blank otherwise
2767 # - inc_all_direct_tests   true if all kinds of problematic unit tests among
2768 #                          the unit tests of the specified modules should be
2769 #                          included, blank otherwise
2770 # - inc_all_indirect_tests   true if all kinds of problematic unit tests among
2771 #                            the unit tests of the dependencies should be
2772 #                            included, blank otherwise
2773 # - excl_cxx_tests   true if C++ interoperability tests should be excluded,
2774 #                    blank otherwise
2775 # - excl_longrunning_tests  true if long-runnings tests should be excluded,
2776 #                           blank otherwise
2777 # - excl_privileged_tests  true if tests that require root privileges should be
2778 #                          excluded, blank otherwise
2779 # - excl_unportable_tests  true if tests that fail on some platforms should be
2780 #                          excluded, blank otherwise
2781 # - avoidlist       list of modules to avoid
2782 # - cond_dependencies  true if conditional dependencies shall be supported,
2783 #                      blank otherwise
2784 # - tmp             pathname of a temporary directory
2785 # Output:
2786 # - modules         list of modules, including dependencies
2787 # - conddep_dependers, conddep_condition  information about conditionally
2788 #                                         enabled modules
2789 func_modules_transitive_closure ()
2790 {
2791   sed_escape_dependency='s|\([/.]\)|\\\1|g'
2792   # In order to process every module only once (for speed), process an "input
2793   # list" of modules, producing an "output list" of modules. During each round,
2794   # more modules can be queued in the input list. Once a module on the input
2795   # list has been processed, it is added to the "handled list", so we can avoid
2796   # to process it again.
2797   handledmodules=
2798   inmodules="$modules"
2799   outmodules=
2800   fmtc_inc_all_tests="$inc_all_direct_tests"
2801   if test "$cond_dependencies" = true; then
2802     for module in $inmodules; do
2803       func_verify_module
2804       if test -n "$module"; then
2805         if func_acceptable $module; then
2806           func_uncond_add_module $module
2807         fi
2808       fi
2809     done
2810   fi
2811   while test -n "$inmodules"; do
2812     inmodules_this_round="$inmodules"
2813     inmodules=                    # Accumulator, queue for next round
2814     for module in $inmodules_this_round; do
2815       func_verify_module
2816       if test -n "$module"; then
2817         if func_acceptable $module; then
2818           func_append outmodules " $module"
2819           if test "$cond_dependencies" = true; then
2820             if func_get_automake_snippet_conditional $module | grep '^if ' > /dev/null; then
2821               # A module whose Makefile.am snippet contains a reference to an
2822               # automake conditional. If we were to use it conditionally, we
2823               # would get an error
2824               #   configure: error: conditional "..." was never defined.
2825               # because automake 1.11.1 does not handle nested conditionals
2826               # correctly. As a workaround, make the module unconditional.
2827               func_uncond_add_module $module
2828             fi
2829             if func_cond_module_p $module; then
2830               conditional=true
2831             else
2832               conditional=false
2833             fi
2834           fi
2835           deps=`func_get_dependencies $module | sed -e "$sed_dependencies_without_conditions"`
2836           # Duplicate dependencies are harmless, but Jim wants a warning.
2837           duplicated_deps=`echo "$deps" | LC_ALL=C sort | LC_ALL=C uniq -d`
2838           if test -n "$duplicated_deps"; then
2839             func_warning "module $module has duplicated dependencies: "`echo $duplicated_deps`
2840           fi
2841           if $inctests; then
2842             testsmodule=`func_get_tests_module $module`
2843             if test -n "$testsmodule"; then
2844               deps="$deps $testsmodule"
2845             fi
2846           fi
2847           for dep in $deps; do
2848             # Determine whether to include the dependency or tests module.
2849             inc=true
2850             for word in `func_get_status $dep`; do
2851               case "$word" in
2852                 obsolete)
2853                   test -n "$incobsolete" \
2854                     || inc=false
2855                   ;;
2856                 c++-test)
2857                   test -z "$excl_cxx_tests" \
2858                     || inc=false
2859                   test -n "$fmtc_inc_all_tests" || test -n "$inc_cxx_tests" \
2860                     || inc=false
2861                   ;;
2862                 longrunning-test)
2863                   test -z "$excl_longrunning_tests" \
2864                     || inc=false
2865                   test -n "$fmtc_inc_all_tests" || test -n "$inc_longrunning_tests" \
2866                     || inc=false
2867                   ;;
2868                 privileged-test)
2869                   test -z "$excl_privileged_tests" \
2870                     || inc=false
2871                   test -n "$fmtc_inc_all_tests" || test -n "$inc_privileged_tests" \
2872                     || inc=false
2873                   ;;
2874                 unportable-test)
2875                   test -z "$excl_unportable_tests" \
2876                     || inc=false
2877                   test -n "$fmtc_inc_all_tests" || test -n "$inc_unportable_tests" \
2878                     || inc=false
2879                   ;;
2880                 *-test)
2881                   test -n "$fmtc_inc_all_tests" \
2882                     || inc=false
2883                   ;;
2884               esac
2885             done
2886             if $inc && func_acceptable "$dep"; then
2887               func_append inmodules " $dep"
2888               if test "$cond_dependencies" = true; then
2889                 escaped_dep=`echo "$dep" | sed -e "$sed_escape_dependency"`
2890                 sed_extract_condition1='/^ *'"$escaped_dep"' *$/{
2891                   s/^.*$/true/p
2892                 }'
2893                 sed_extract_condition2='/^ *'"$escaped_dep"' *\[.*\] *$/{
2894                   s/^ *'"$escaped_dep"' *\[\(.*\)\] *$/\1/p
2895                 }'
2896                 condition=`func_get_dependencies $module | sed -n -e "$sed_extract_condition1" -e "$sed_extract_condition2"`
2897                 if test "$condition" = true; then
2898                   condition=
2899                 fi
2900                 if test -n "$condition"; then
2901                   func_conddep_add_module "$module" "$dep" "$condition"
2902                 else
2903                   if $conditional; then
2904                     func_conddep_add_module "$module" "$dep" true
2905                   else
2906                     func_uncond_add_module "$dep"
2907                   fi
2908                 fi
2909               fi
2910             fi
2911           done
2912         fi
2913       fi
2914     done
2915     handledmodules=`for m in $handledmodules $inmodules_this_round; do echo $m; done | LC_ALL=C sort -u`
2916     # Remove $handledmodules from $inmodules.
2917     for m in $inmodules; do echo $m; done | LC_ALL=C sort -u > "$tmp"/queued-modules
2918     inmodules=`echo "$handledmodules" | LC_ALL=C join -v 2 - "$tmp"/queued-modules`
2919     fmtc_inc_all_tests="$inc_all_indirect_tests"
2920   done
2921   modules=`for m in $outmodules; do echo $m; done | LC_ALL=C sort -u`
2922   rm -f "$tmp"/queued-modules
2923 }
2924
2925 # func_show_module_list
2926 # Input:
2927 # - specified_modules  list of specified modules (one per line, sorted)
2928 # - modules         complete list of modules (one per line, sorted)
2929 # - tmp             pathname of a temporary directory
2930 func_show_module_list ()
2931 {
2932   if case "$TERM" in
2933        xterm*) test -t 1;;
2934        *) false;;
2935      esac; then
2936     # Assume xterm compatible escape sequences.
2937     bold_on=`printf '\033[1m'`
2938     bold_off=`printf '\033[0m'`
2939   else
2940     bold_on=
2941     bold_off=
2942   fi
2943   echo "Module list with included dependencies (indented):"
2944   echo "$specified_modules" | sed -e '/^$/d' -e 's/$/| /' > "$tmp"/specified-modules
2945   echo "$modules" | sed -e '/^$/d' \
2946     | LC_ALL=C join -t '|' -a2 "$tmp"/specified-modules - \
2947     | sed -e 's/^\(.*\)|.*/|\1/' -e 's/^/    /' -e 's/^    |\(.*\)$/  '"${bold_on}"'\1'"${bold_off}"'/'
2948 }
2949
2950 # func_modules_transitive_closure_separately
2951 # Determine main module list and tests-related module list separately.
2952 # The main module list is the transitive closure of the specified modules,
2953 # ignoring tests modules. Its lib/* sources go into $sourcebase/. If --lgpl
2954 # is specified, it will consist only of LGPLed source.
2955 # The tests-related module list is the transitive closure of the specified
2956 # modules, including tests modules, minus the main module list excluding
2957 # modules of applicability 'all'. Its lib/* sources (brought in through
2958 # dependencies of *-tests modules) go into $testsbase/. It may contain GPLed
2959 # source, even if --lgpl is specified.
2960 # Input:
2961 # - local_gnulib_path  from --local-dir
2962 # - modcache        true or false, from --cache-modules/--no-cache-modules
2963 # - specified_modules  list of specified modules
2964 # - inctests        true if tests should be included, false otherwise
2965 # - incobsolete     true if obsolete modules among dependencies should be
2966 #                   included, blank otherwise
2967 # - inc_cxx_tests   true if C++ interoperability tests should be included,
2968 #                   blank otherwise
2969 # - inc_longrunning_tests  true if long-runnings tests should be included,
2970 #                          blank otherwise
2971 # - inc_privileged_tests  true if tests that require root privileges should be
2972 #                         included, blank otherwise
2973 # - inc_unportable_tests  true if tests that fail on some platforms should be
2974 #                         included, blank otherwise
2975 # - inc_all_direct_tests   true if all kinds of problematic unit tests among
2976 #                          the unit tests of the specified modules should be
2977 #                          included, blank otherwise
2978 # - inc_all_indirect_tests   true if all kinds of problematic unit tests among
2979 #                            the unit tests of the dependencies should be
2980 #                            included, blank otherwise
2981 # - excl_cxx_tests   true if C++ interoperability tests should be excluded,
2982 #                    blank otherwise
2983 # - excl_longrunning_tests  true if long-runnings tests should be excluded,
2984 #                           blank otherwise
2985 # - excl_privileged_tests  true if tests that require root privileges should be
2986 #                          excluded, blank otherwise
2987 # - excl_unportable_tests  true if tests that fail on some platforms should be
2988 #                          excluded, blank otherwise
2989 # - avoidlist       list of modules to avoid
2990 # - cond_dependencies  true if conditional dependencies shall be supported,
2991 #                      blank otherwise
2992 # - tmp             pathname of a temporary directory
2993 # Output:
2994 # - main_modules    list of modules, including dependencies
2995 # - testsrelated_modules  list of tests-related modules, including dependencies
2996 # - conddep_dependers, conddep_condition  information about conditionally
2997 #                                         enabled modules
2998 func_modules_transitive_closure_separately ()
2999 {
3000   # Determine main module list.
3001   saved_inctests="$inctests"
3002   inctests=false
3003   modules="$specified_modules"
3004   func_modules_transitive_closure
3005   main_modules="$modules"
3006   inctests="$saved_inctests"
3007   if test $verbose -ge 1; then
3008     echo "Main module list:"
3009     echo "$main_modules" | sed -e 's/^/  /'
3010   fi
3011   # Determine tests-related module list.
3012   echo "$final_modules" | LC_ALL=C sort -u > "$tmp"/final-modules
3013   testsrelated_modules=`for module in $main_modules; do
3014                           if test \`func_get_applicability $module\` = main; then
3015                             echo $module
3016                           fi
3017                         done \
3018                         | LC_ALL=C sort -u | LC_ALL=C join -v 2 - "$tmp"/final-modules`
3019   if test $verbose -ge 1; then
3020     echo "Tests-related module list:"
3021     echo "$testsrelated_modules" | sed -e 's/^/  /'
3022   fi
3023 }
3024
3025 # func_determine_use_libtests
3026 # Determines whether a $testsbase/libtests.a is needed.
3027 # Input:
3028 # - local_gnulib_path  from --local-dir
3029 # - modcache        true or false, from --cache-modules/--no-cache-modules
3030 # - testsrelated_modules  list of tests-related modules, including dependencies
3031 # Output:
3032 # - use_libtests    true if a $testsbase/libtests.a is needed, false otherwise
3033 func_determine_use_libtests ()
3034 {
3035   use_libtests=false
3036   for module in $testsrelated_modules; do
3037     func_verify_nontests_module
3038     if test -n "$module"; then
3039       all_files=`func_get_filelist $module`
3040       # Test whether some file in $all_files lies in lib/.
3041       for f in $all_files; do
3042         case $f in
3043           lib/*)
3044             use_libtests=true
3045             break 2
3046             ;;
3047         esac
3048       done
3049     fi
3050   done
3051 }
3052
3053 # func_modules_add_dummy
3054 # Input:
3055 # - local_gnulib_path  from --local-dir
3056 # - modcache        true or false, from --cache-modules/--no-cache-modules
3057 # - modules         list of modules, including dependencies
3058 # Output:
3059 # - modules         list of modules, including 'dummy' if needed
3060 func_modules_add_dummy ()
3061 {
3062   # Determine whether any module provides a lib_SOURCES augmentation.
3063   have_lib_SOURCES=
3064   for module in $modules; do
3065     func_verify_nontests_module
3066     if test -n "$module"; then
3067       # Extract the value of "lib_SOURCES += ...".
3068       for file in `func_get_automake_snippet "$module" | combine_lines |
3069                    sed -n -e 's,^lib_SOURCES[    ]*+=\([^#]*\).*$,\1,p'`; do
3070         # Ignore .h files since they are not compiled.
3071         case "$file" in
3072           *.h) ;;
3073           *)
3074             have_lib_SOURCES=yes
3075             break 2
3076             ;;
3077         esac
3078       done
3079     fi
3080   done
3081   # Add the dummy module, to make sure the library will be non-empty.
3082   if test -z "$have_lib_SOURCES"; then
3083     if func_acceptable "dummy"; then
3084       func_append modules " dummy"
3085     fi
3086   fi
3087 }
3088
3089 # func_modules_add_dummy_separately
3090 # Input:
3091 # - local_gnulib_path  from --local-dir
3092 # - modcache        true or false, from --cache-modules/--no-cache-modules
3093 # - main_modules    list of modules, including dependencies
3094 # - testsrelated_modules  list of tests-related modules, including dependencies
3095 # - use_libtests    true if a $testsbase/libtests.a is needed, false otherwise
3096 # Output:
3097 # - main_modules    list of modules, including 'dummy' if needed
3098 # - testsrelated_modules  list of tests-related modules, including 'dummy' if
3099 #                         needed
3100 func_modules_add_dummy_separately ()
3101 {
3102   # Add the dummy module to the main module list if needed.
3103   modules="$main_modules"
3104   func_modules_add_dummy
3105   main_modules="$modules"
3106
3107   # Add the dummy module to the tests-related module list if needed.
3108   if $use_libtests; then
3109     modules="$testsrelated_modules"
3110     func_modules_add_dummy
3111     testsrelated_modules="$modules"
3112   fi
3113 }
3114
3115 # func_modules_notice
3116 # Input:
3117 # - local_gnulib_path  from --local-dir
3118 # - modcache        true or false, from --cache-modules/--no-cache-modules
3119 # - verbose         integer, default 0, inc/decremented by --verbose/--quiet
3120 # - modules         list of modules, including dependencies
3121 func_modules_notice ()
3122 {
3123   if test $verbose -ge -1; then
3124     for module in $modules; do
3125       func_verify_module
3126       if test -n "$module"; then
3127         msg=`func_get_notice $module`
3128         if test -n "$msg"; then
3129           echo "Notice from module $module:"
3130           echo "$msg" | sed -e 's/^/  /'
3131         fi
3132       fi
3133     done
3134   fi
3135 }
3136
3137 # func_modules_to_filelist
3138 # Input:
3139 # - local_gnulib_path  from --local-dir
3140 # - modcache        true or false, from --cache-modules/--no-cache-modules
3141 # - modules         list of modules, including dependencies
3142 # Output:
3143 # - files           list of files
3144 func_modules_to_filelist ()
3145 {
3146   files=
3147   for module in $modules; do
3148     func_verify_module
3149     if test -n "$module"; then
3150       fs=`func_get_filelist $module`
3151       func_append files " $fs"
3152     fi
3153   done
3154   files=`for f in $files; do echo $f; done | LC_ALL=C sort -u`
3155 }
3156
3157 # func_modules_to_filelist_separately
3158 # Determine the final file lists.
3159 # They must be computed separately, because files in lib/* go into
3160 # $sourcebase/ if they are in the main file list but into $testsbase/
3161 # if they are in the tests-related file list. Furthermore lib/dummy.c
3162 # can be in both.
3163 # Input:
3164 # - local_gnulib_path  from --local-dir
3165 # - modcache        true or false, from --cache-modules/--no-cache-modules
3166 # - main_modules    list of modules, including dependencies
3167 # - testsrelated_modules  list of tests-related modules, including dependencies
3168 func_modules_to_filelist_separately ()
3169 {
3170   # Determine final main file list.
3171   modules="$main_modules"
3172   func_modules_to_filelist
3173   main_files="$files"
3174   # Determine final tests-related file list.
3175   modules="$testsrelated_modules"
3176   func_modules_to_filelist
3177   testsrelated_files=`echo "$files" | sed -e 's,^lib/,tests=lib/,'`
3178   # Merge both file lists.
3179   sed_remove_empty_lines='/^$/d'
3180   files=`{ echo "$main_files"; echo "$testsrelated_files"; } | sed -e "$sed_remove_empty_lines" | LC_ALL=C sort -u`
3181   if test $verbose -ge 0; then
3182     echo "File list:"
3183     sed_prettyprint_files='s,^tests=lib/\(.*\)$,lib/\1 -> tests/\1,'
3184     echo "$files" | sed -e "$sed_prettyprint_files" -e 's/^/  /'
3185   fi
3186 }
3187
3188 # func_compute_include_guard_prefix
3189 # Determine include_guard_prefix.
3190 # Input:
3191 # - macro_prefix    prefix of gl_LIBOBJS macros to use
3192 # Output:
3193 # - include_guard_prefix  replacement for ${gl_include_guard_prefix}
3194 # - sed_replace_include_guard_prefix
3195 #                   sed expression for resolving ${gl_include_guard_prefix}
3196 func_compute_include_guard_prefix ()
3197 {
3198   if test "$macro_prefix" = gl; then
3199     include_guard_prefix='GL'
3200   else
3201     include_guard_prefix='GL_'`echo "$macro_prefix" | LC_ALL=C tr '[a-z]' '[A-Z]'`
3202   fi
3203   sed_replace_include_guard_prefix='s/\${gl_include_guard_prefix}/'"${include_guard_prefix}"'/g'
3204 }
3205
3206 # func_execute_command command [args...]
3207 # Executes a command.
3208 # Uses also the variables
3209 # - verbose         integer, default 0, inc/decremented by --verbose/--quiet
3210 func_execute_command ()
3211 {
3212   if test $verbose -ge 0; then
3213     echo "executing $*"
3214     "$@"
3215   else
3216     # Commands like automake produce output to stderr even when they succeed.
3217     # Turn this output off if the command succeeds.
3218     "$@" > "$tmp"/cmdout 2>&1
3219     cmdret=$?
3220     if test $cmdret = 0; then
3221       rm -f "$tmp"/cmdout
3222     else
3223       echo "executing $*"
3224       cat "$tmp"/cmdout 1>&2
3225       rm -f "$tmp"/cmdout
3226       (exit $cmdret)
3227     fi
3228   fi
3229 }
3230
3231 # func_dest_tmpfilename file
3232 # determines the name of a temporary file (file is relative to destdir).
3233 # Input:
3234 # - destdir         target directory
3235 # - doit            : if actions shall be executed, false if only to be printed
3236 # - tmp             pathname of a temporary directory
3237 # Sets variable:
3238 #   - tmpfile       absolute filename of the temporary file
3239 func_dest_tmpfilename ()
3240 {
3241   if $doit; then
3242     # Put the new contents of $file in a file in the same directory (needed
3243     # to guarantee that an 'mv' to "$destdir/$file" works).
3244     tmpfile="$destdir/$1.tmp"
3245   else
3246     # Put the new contents of $file in a file in a temporary directory
3247     # (because the directory of "$file" might not exist).
3248     tmpfile="$tmp"/`basename "$1"`.tmp
3249   fi
3250 }
3251
3252 # func_is_local_file lookedup_file file
3253 # check whether file should be instantiated from local gnulib directory
3254 func_is_local_file ()
3255 {
3256   dname=$1
3257   func_remove_suffix dname "/$2"
3258   func_path_foreach "$local_gnulib_path" test %dir% = "$dname"
3259 }
3260
3261 # func_should_symlink
3262 # returns 0 when the file $f should be symlinked
3263 # Input:
3264 # - symbolic        true if files should be symlinked, copied otherwise
3265 # - lsymbolic       true if files from local_gnulib_path should be symlinked,
3266 #                   copied otherwise
3267 # - f               the original file name
3268 # - lookedup_file   name of the merged (combined) file
3269 func_should_symlink ()
3270 {
3271   test -n "$symbolic" \
3272     || { test -n "$lsymbolic" \
3273          && func_is_local_file "$lookedup_file" "$f"; }
3274 }
3275
3276 # func_add_file
3277 # copies a file from gnulib into the destination directory. The destination
3278 # is known to not exist.
3279 # Input:
3280 # - destdir         target directory
3281 # - local_gnulib_path  from --local-dir
3282 # - modcache        true or false, from --cache-modules/--no-cache-modules
3283 # - f               the original file name
3284 # - lookedup_file   name of the merged (combined) file
3285 # - lookedup_tmp    true if it is located in the tmp directory, blank otherwise
3286 # - g               the rewritten file name
3287 # - tmpfile         absolute filename of the temporary file
3288 # - doit            : if actions shall be executed, false if only to be printed
3289 # - symbolic        true if files should be symlinked, copied otherwise
3290 # - lsymbolic       true if files from local_gnulib_path should be symlinked,
3291 #                   copied otherwise
3292 func_add_file ()
3293 {
3294   if $doit; then
3295     echo "Copying file $g"
3296     if func_should_symlink \
3297        && test -z "$lookedup_tmp" \
3298        && cmp -s "$lookedup_file" "$tmpfile"; then
3299       func_ln_if_changed "$lookedup_file" "$destdir/$g"
3300     else
3301       mv -f "$tmpfile" "$destdir/${g}" || func_fatal_error "failed"
3302     fi
3303   else
3304     echo "Copy file $g"
3305   fi
3306 }
3307
3308 # func_update_file
3309 # copies a file from gnulib into the destination directory. The destination
3310 # is known to exist.
3311 # Input:
3312 # - destdir         target directory
3313 # - local_gnulib_path  from --local-dir
3314 # - modcache        true or false, from --cache-modules/--no-cache-modules
3315 # - f               the original file name
3316 # - lookedup_file   name of the merged (combined) file
3317 # - lookedup_tmp    true if it is located in the tmp directory, blank otherwise
3318 # - g               the rewritten file name
3319 # - tmpfile         absolute filename of the temporary file
3320 # - doit            : if actions shall be executed, false if only to be printed
3321 # - symbolic        true if files should be symlinked, copied otherwise
3322 # - lsymbolic       true if files from local_gnulib_path should be symlinked,
3323 #                   copied otherwise
3324 # - already_present  nonempty if the file should already exist, empty otherwise
3325 func_update_file ()
3326 {
3327   if cmp -s "$destdir/$g" "$tmpfile"; then
3328     : # The file has not changed.
3329   else
3330     # Replace the file.
3331     if $doit; then
3332       if test -n "$already_present"; then
3333         echo "Updating file $g (backup in ${g}~)"
3334       else
3335         echo "Replacing file $g (non-gnulib code backed up in ${g}~) !!"
3336       fi
3337       mv -f "$destdir/$g" "$destdir/${g}~" || func_fatal_error "failed"
3338       if func_should_symlink \
3339          && test -z "$lookedup_tmp" \
3340          && cmp -s "$lookedup_file" "$tmpfile"; then
3341         func_ln_if_changed "$lookedup_file" "$destdir/$g"
3342       else
3343         mv -f "$tmpfile" "$destdir/${g}" || func_fatal_error "failed"
3344       fi
3345     else
3346       if test -n "$already_present"; then
3347         echo "Update file $g (backup in ${g}~)"
3348       else
3349         echo "Replace file $g (non-gnulib code backed up in ${g}~) !!"
3350       fi
3351     fi
3352   fi
3353 }
3354
3355 # func_emit_lib_Makefile_am
3356 # emits the contents of library makefile to standard output.
3357 # Input:
3358 # - local_gnulib_path  from --local-dir
3359 # - modcache        true or false, from --cache-modules/--no-cache-modules
3360 # - modules         list of modules, including dependencies
3361 # - libname         library name
3362 # - pobase          directory relative to destdir where to place *.po files
3363 # - auxdir          directory relative to destdir where to place build aux files
3364 # - makefile_name   from --makefile-name
3365 # - libtool         true if libtool will be used, false or blank otherwise
3366 # - macro_prefix    prefix of gl_LIBOBJS macros to use
3367 # - po_domain       prefix of i18n domain to use (without -gnulib suffix)
3368 # - witness_c_macro  from --witness-c-macro
3369 # - actioncmd       (optional) command that will reproduce this invocation
3370 # - for_test        true if creating a package for testing, false otherwise
3371 # - sed_replace_include_guard_prefix
3372 #                   sed expression for resolving ${gl_include_guard_prefix}
3373 # - destfile        filename relative to destdir of makefile being generated
3374 # Input/Output:
3375 # - makefile_am_edits and makefile_am_edit${edit}_{dir,var,val}
3376 #                   list of edits to be done to Makefile.am variables
3377 # Output:
3378 # - uses_subdirs    nonempty if object files in subdirs exist
3379 func_emit_lib_Makefile_am ()
3380 {
3381   # When creating an includable Makefile.am snippet, augment variables with
3382   # += instead of assigning them.
3383   if test -n "$makefile_name"; then
3384     assign='+='
3385   else
3386     assign='='
3387   fi
3388   if test "$libtool" = true; then
3389     libext=la
3390     perhapsLT=LT
3391     sed_eliminate_LDFLAGS="$sed_noop"
3392   else
3393     libext=a
3394     perhapsLT=
3395     sed_eliminate_LDFLAGS='/^lib_LDFLAGS[        ]*+=/d'
3396   fi
3397   if $for_test; then
3398     # When creating a package for testing: Attempt to provoke failures,
3399     # especially link errors, already during "make" rather than during
3400     # "make check", because "make check" is not possible in a cross-compiling
3401     # situation. Turn check_PROGRAMS into noinst_PROGRAMS.
3402     sed_transform_check_PROGRAMS='s,check_PROGRAMS,noinst_PROGRAMS,g'
3403   else
3404     sed_transform_check_PROGRAMS="$sed_noop"
3405   fi
3406   echo "## DO NOT EDIT! GENERATED AUTOMATICALLY!"
3407   echo "## Process this file with automake to produce Makefile.in."
3408   func_emit_copyright_notice
3409   if test -n "$actioncmd"; then
3410     # The maximum line length (excluding the terminating newline) of any file
3411     # that is to be preprocessed by config.status is 3070.  config.status uses
3412     # awk, and the HP-UX 11.00 awk fails if a line has length >= 3071;
3413     # similarly, the IRIX 6.5 awk fails if a line has length >= 3072.
3414     len=`echo "$actioncmd" | wc -c`
3415     if test -n "$len" && test "$len" -le 3000; then
3416       echo "# Reproduce by: $actioncmd"
3417     fi
3418   fi
3419   echo
3420   uses_subdirs=
3421   {
3422     for module in $modules; do
3423       func_verify_nontests_module
3424       if test -n "$module"; then
3425         {
3426           func_get_automake_snippet_conditional "$module" |
3427             LC_ALL=C \
3428             sed -e 's,lib_LIBRARIES,lib%_LIBRARIES,g' \
3429                 -e 's,lib_LTLIBRARIES,lib%_LTLIBRARIES,g' \
3430                 -e "$sed_eliminate_LDFLAGS" \
3431                 -e 's,lib_\([A-Z][A-Z]*\),'"${libname}_${libext}"'_\1,g' \
3432                 -e 's,lib%_LIBRARIES,lib_LIBRARIES,g' \
3433                 -e 's,lib%_LTLIBRARIES,lib_LTLIBRARIES,g' \
3434                 -e "$sed_transform_check_PROGRAMS" \
3435                 -e "$sed_replace_include_guard_prefix"
3436           if test "$module" = 'alloca'; then
3437             echo "${libname}_${libext}_LIBADD += @${perhapsLT}ALLOCA@"
3438             echo "${libname}_${libext}_DEPENDENCIES += @${perhapsLT}ALLOCA@"
3439           fi
3440         } | combine_lines "${libname}_${libext}_SOURCES" > "$tmp"/amsnippet1
3441         {
3442           func_get_automake_snippet_unconditional "$module" |
3443             LC_ALL=C sed -e 's,lib_\([A-Z][A-Z]*\),'"${libname}_${libext}"'_\1,g'
3444         } > "$tmp"/amsnippet2
3445         # Skip the contents if it's entirely empty.
3446         if grep '[^      ]' "$tmp"/amsnippet1 "$tmp"/amsnippet2 > /dev/null ; then
3447           echo "## begin gnulib module $module"
3448           echo
3449           if test "$cond_dependencies" = true; then
3450             if func_cond_module_p "$module"; then
3451               func_module_conditional_name "$module"
3452               echo "if $conditional"
3453             fi
3454           fi
3455           cat "$tmp"/amsnippet1
3456           if test "$cond_dependencies" = true; then
3457             if func_cond_module_p "$module"; then
3458               echo "endif"
3459             fi
3460           fi
3461           cat "$tmp"/amsnippet2
3462           echo "## end   gnulib module $module"
3463           echo
3464         fi
3465         rm -f "$tmp"/amsnippet1 "$tmp"/amsnippet2
3466         # Test whether there are some source files in subdirectories.
3467         for f in `func_get_filelist "$module"`; do
3468           case $f in
3469             lib/*/*.c)
3470               uses_subdirs=yes
3471               break
3472               ;;
3473           esac
3474         done
3475       fi
3476     done
3477   } > "$tmp"/allsnippets
3478   if test -z "$makefile_name"; then
3479     # If there are source files in subdirectories, prevent collision of the
3480     # object files (example: hash.c and libxml/hash.c).
3481     subdir_options=
3482     if test -n "$uses_subdirs"; then
3483       subdir_options=' subdir-objects'
3484     fi
3485     echo "AUTOMAKE_OPTIONS = 1.9.6 gnits${subdir_options}"
3486   fi
3487   echo
3488   if test -z "$makefile_name"; then
3489     echo "SUBDIRS ="
3490     echo "noinst_HEADERS ="
3491     echo "noinst_LIBRARIES ="
3492     echo "noinst_LTLIBRARIES ="
3493     # Automake versions < 1.11.4 create an empty pkgdatadir at
3494     # installation time if you specify pkgdata_DATA to empty.
3495     # See automake bugs #10997 and #11030:
3496     #  * http://debbugs.gnu.org/10997
3497     #  * http://debbugs.gnu.org/11030
3498     # So we need this workaround.
3499     if grep '^pkgdata_DATA *+=' "$tmp"/allsnippets > /dev/null; then
3500       echo "pkgdata_DATA ="
3501     fi
3502     echo "EXTRA_DIST ="
3503     echo "BUILT_SOURCES ="
3504     echo "SUFFIXES ="
3505   fi
3506   echo "MOSTLYCLEANFILES $assign core *.stackdump"
3507   if test -z "$makefile_name"; then
3508     echo "MOSTLYCLEANDIRS ="
3509     echo "CLEANFILES ="
3510     echo "DISTCLEANFILES ="
3511     echo "MAINTAINERCLEANFILES ="
3512   fi
3513   # Execute edits that apply to the Makefile.am being generated.
3514   edit=0
3515   while test $edit != $makefile_am_edits; do
3516     edit=`expr $edit + 1`
3517     eval dir=\"\$makefile_am_edit${edit}_dir\"
3518     eval var=\"\$makefile_am_edit${edit}_var\"
3519     eval val=\"\$makefile_am_edit${edit}_val\"
3520     if test -n "$var"; then
3521       if test "${dir}Makefile.am" = "$destfile" || test "./${dir}Makefile.am" = "$destfile"; then
3522         echo "${var} += ${val}"
3523         eval "makefile_am_edit${edit}_var="
3524       fi
3525     fi
3526   done
3527   if test -n "$witness_c_macro"; then
3528     cppflags_part1=" -D$witness_c_macro=1"
3529   else
3530     cppflags_part1=
3531   fi
3532   if $for_test; then
3533     cppflags_part2=" -DGNULIB_STRICT_CHECKING=1"
3534   else
3535     cppflags_part2=
3536   fi
3537   if test -z "$makefile_name"; then
3538     echo
3539     echo "AM_CPPFLAGS =$cppflags_part1$cppflags_part2"
3540     echo "AM_CFLAGS ="
3541   else
3542     if test -n "$cppflags_part1$cppflags_part2"; then
3543       echo
3544       echo "AM_CPPFLAGS +=$cppflags_part1$cppflags_part2"
3545     fi
3546   fi
3547   echo
3548   if LC_ALL=C grep "^[a-zA-Z0-9_]*_${perhapsLT}LIBRARIES *+\{0,1\}= *$libname\\.$libext\$" "$tmp"/allsnippets > /dev/null \
3549      || { test -n "$makefile_name" \
3550           && test -f "$sourcebase/Makefile.am" \
3551           && LC_ALL=C grep "^[a-zA-Z0-9_]*_${perhapsLT}LIBRARIES *+\{0,1\}= *$libname\\.$libext\$" "$sourcebase/Makefile.am" > /dev/null; \
3552         }; then
3553     # One of the snippets or the user's Makefile.am already specifies an
3554     # installation location for the library. Don't confuse automake by saying
3555     # it should not be installed.
3556     :
3557   else
3558     # By default, the generated library should not be installed.
3559     echo "noinst_${perhapsLT}LIBRARIES += $libname.$libext"
3560   fi
3561   echo
3562   echo "${libname}_${libext}_SOURCES ="
3563   # Here we use $(LIBOBJS), not @LIBOBJS@. The value is the same. However,
3564   # automake during its analysis looks for $(LIBOBJS), not for @LIBOBJS@.
3565   echo "${libname}_${libext}_LIBADD = \$(${macro_prefix}_${perhapsLT}LIBOBJS)"
3566   echo "${libname}_${libext}_DEPENDENCIES = \$(${macro_prefix}_${perhapsLT}LIBOBJS)"
3567   echo "EXTRA_${libname}_${libext}_SOURCES ="
3568   if test "$libtool" = true; then
3569     echo "${libname}_${libext}_LDFLAGS = \$(AM_LDFLAGS)"
3570     echo "${libname}_${libext}_LDFLAGS += -no-undefined"
3571     # Synthesize an ${libname}_${libext}_LDFLAGS augmentation by combining
3572     # the link dependencies of all modules.
3573     for module in $modules; do
3574       func_verify_nontests_module
3575       if test -n "$module"; then
3576         func_get_link_directive "$module"
3577       fi
3578     done \
3579       | LC_ALL=C sed -e '/^$/d' -e 's/ when linking with libtool.*//' \
3580       | LC_ALL=C sort -u \
3581       | LC_ALL=C sed -e 's/^/'"${libname}_${libext}"'_LDFLAGS += /'
3582   fi
3583   echo
3584   if test -n "$pobase"; then
3585     echo "AM_CPPFLAGS += -DDEFAULT_TEXT_DOMAIN=\\\"${po_domain}-gnulib\\\""
3586     echo
3587   fi
3588   cat "$tmp"/allsnippets \
3589     | sed -e 's|\$(top_srcdir)/build-aux/|$(top_srcdir)/'"$auxdir"'/|g'
3590   echo
3591   echo "mostlyclean-local: mostlyclean-generic"
3592   echo "        @for dir in '' \$(MOSTLYCLEANDIRS); do \\"
3593   echo "          if test -n \"\$\$dir\" && test -d \$\$dir; then \\"
3594   echo "            echo \"rmdir \$\$dir\"; rmdir \$\$dir; \\"
3595   echo "          fi; \\"
3596   echo "        done; \\"
3597   echo "        :"
3598   rm -f "$tmp"/allsnippets
3599 }
3600
3601 # func_emit_po_Makevars
3602 # emits the contents of po/ makefile parameterization to standard output.
3603 # Input:
3604 # - local_gnulib_path  from --local-dir
3605 # - modcache        true or false, from --cache-modules/--no-cache-modules
3606 # - sourcebase      directory relative to destdir where to place source code
3607 # - pobase          directory relative to destdir where to place *.po files
3608 # - po_domain       prefix of i18n domain to use (without -gnulib suffix)
3609 func_emit_po_Makevars ()
3610 {
3611   echo "## DO NOT EDIT! GENERATED AUTOMATICALLY!"
3612   func_emit_copyright_notice
3613   echo
3614   echo "# Usually the message domain is the same as the package name."
3615   echo "# But here it has a '-gnulib' suffix."
3616   echo "DOMAIN = ${po_domain}-gnulib"
3617   echo
3618   echo "# These two variables depend on the location of this directory."
3619   echo "subdir = ${pobase}"
3620   echo "top_builddir = "`echo "$pobase" | sed -e 's,//*,/,g' -e 's,[^/][^/]*,..,g'`
3621   echo
3622   cat <<\EOF
3623 # These options get passed to xgettext.
3624 XGETTEXT_OPTIONS = \
3625   --keyword=_ --flag=_:1:pass-c-format \
3626   --keyword=N_ --flag=N_:1:pass-c-format \
3627   --keyword='proper_name:1,"This is a proper name. See the gettext manual, section Names."' \
3628   --keyword='proper_name_utf8:1,"This is a proper name. See the gettext manual, section Names."' \
3629   --flag=error:3:c-format --flag=error_at_line:5:c-format
3630
3631 # This is the copyright holder that gets inserted into the header of the
3632 # $(DOMAIN).pot file.  gnulib is copyrighted by the FSF.
3633 COPYRIGHT_HOLDER = Free Software Foundation, Inc.
3634
3635 # This is the email address or URL to which the translators shall report
3636 # bugs in the untranslated strings:
3637 # - Strings which are not entire sentences, see the maintainer guidelines
3638 #   in the GNU gettext documentation, section 'Preparing Strings'.
3639 # - Strings which use unclear terms or require additional context to be
3640 #   understood.
3641 # - Strings which make invalid assumptions about notation of date, time or
3642 #   money.
3643 # - Pluralisation problems.
3644 # - Incorrect English spelling.
3645 # - Incorrect formatting.
3646 # It can be your email address, or a mailing list address where translators
3647 # can write to without being subscribed, or the URL of a web page through
3648 # which the translators can contact you.
3649 MSGID_BUGS_ADDRESS = bug-gnulib@gnu.org
3650
3651 # This is the list of locale categories, beyond LC_MESSAGES, for which the
3652 # message catalogs shall be used.  It is usually empty.
3653 EXTRA_LOCALE_CATEGORIES =
3654
3655 # This tells whether the $(DOMAIN).pot file contains messages with an 'msgctxt'
3656 # context.  Possible values are "yes" and "no".  Set this to yes if the
3657 # package uses functions taking also a message context, like pgettext(), or
3658 # if in $(XGETTEXT_OPTIONS) you define keywords with a context argument.
3659 USE_MSGCTXT = no
3660 EOF
3661 }
3662
3663 # func_emit_po_POTFILES_in
3664 # emits the file list to be passed to xgettext to standard output.
3665 # Input:
3666 # - local_gnulib_path  from --local-dir
3667 # - modcache        true or false, from --cache-modules/--no-cache-modules
3668 # - sourcebase      directory relative to destdir where to place source code
3669 # - files           list of new files
3670 func_emit_po_POTFILES_in ()
3671 {
3672   echo "## DO NOT EDIT! GENERATED AUTOMATICALLY!"
3673   func_emit_copyright_notice
3674   echo
3675   echo "# List of files which contain translatable strings."
3676   echo "$files" | sed -n -e "s,^lib/,$sourcebase/,p"
3677 }
3678
3679 # func_emit_tests_Makefile_am witness_macro
3680 # emits the contents of tests makefile to standard output.
3681 # Input:
3682 # - local_gnulib_path  from --local-dir
3683 # - modcache        true or false, from --cache-modules/--no-cache-modules
3684 # - modules         list of modules, including dependencies
3685 # - libname         library name
3686 # - auxdir          directory relative to destdir where to place build aux files
3687 # - makefile_name   from --makefile-name
3688 # - libtool         true if libtool will be used, false or blank otherwise
3689 # - sourcebase      relative directory containing lib source code
3690 # - m4base          relative directory containing autoconf macros
3691 # - testsbase       relative directory containing unit test code
3692 # - macro_prefix    prefix of gl_LIBOBJS macros to use
3693 # - witness_c_macro  from --witness-c-macro
3694 # - for_test        true if creating a package for testing, false otherwise
3695 # - single_configure  true if a single configure file should be generated,
3696 #                     false for a separate configure file for the tests
3697 # - use_libtests    true if a libtests.a should be built, false otherwise
3698 # - sed_replace_include_guard_prefix
3699 #                   sed expression for resolving ${gl_include_guard_prefix}
3700 # - destfile        filename relative to destdir of makefile being generated
3701 # Input/Output:
3702 # - makefile_am_edits and makefile_am_edit${edit}_{dir,var,val}
3703 #                   list of edits to be done to Makefile.am variables
3704 # Output:
3705 # - uses_subdirs    nonempty if object files in subdirs exist
3706 func_emit_tests_Makefile_am ()
3707 {
3708   witness_macro="$1"
3709   if test "$libtool" = true; then
3710     libext=la
3711     perhapsLT=LT
3712     sed_eliminate_LDFLAGS="$sed_noop"
3713   else
3714     libext=a
3715     perhapsLT=
3716     sed_eliminate_LDFLAGS='/^lib_LDFLAGS[        ]*+=/d'
3717   fi
3718   if $for_test; then
3719     # When creating a package for testing: Attempt to provoke failures,
3720     # especially link errors, already during "make" rather than during
3721     # "make check", because "make check" is not possible in a cross-compiling
3722     # situation. Turn check_PROGRAMS into noinst_PROGRAMS.
3723     sed_transform_check_PROGRAMS='s,check_PROGRAMS,noinst_PROGRAMS,g'
3724   else
3725     sed_transform_check_PROGRAMS="$sed_noop"
3726   fi
3727   testsbase_inverse=`echo "$testsbase" | sed -e 's,/$,,' | sed -e 's,[^/][^/]*,..,g'`
3728   echo "## DO NOT EDIT! GENERATED AUTOMATICALLY!"
3729   echo "## Process this file with automake to produce Makefile.in."
3730   func_emit_copyright_notice
3731   echo
3732   uses_subdirs=
3733   {
3734     for module in $modules; do
3735       if $for_test && ! $single_configure; then
3736         func_verify_tests_module
3737       else
3738         func_verify_module
3739       fi
3740       if test -n "$module"; then
3741         {
3742           func_get_automake_snippet "$module" |
3743             LC_ALL=C \
3744             sed -e 's,lib_LIBRARIES,lib%_LIBRARIES,g' \
3745                 -e 's,lib_LTLIBRARIES,lib%_LTLIBRARIES,g' \
3746                 -e "$sed_eliminate_LDFLAGS" \
3747                 -e 's,lib_\([A-Z][A-Z]*\),libtests_a_\1,g' \
3748                 -e 's,lib%_LIBRARIES,lib_LIBRARIES,g' \
3749                 -e 's,lib%_LTLIBRARIES,lib_LTLIBRARIES,g' \
3750                 -e "$sed_transform_check_PROGRAMS" \
3751                 -e "$sed_replace_include_guard_prefix"
3752           if $use_libtests && test "$module" = 'alloca'; then
3753             echo "libtests_a_LIBADD += @${perhapsLT}ALLOCA@"
3754             echo "libtests_a_DEPENDENCIES += @${perhapsLT}ALLOCA@"
3755           fi
3756         } > "$tmp"/amsnippet
3757         # Skip the contents if it's entirely empty.
3758         if grep '[^      ]' "$tmp"/amsnippet > /dev/null ; then
3759           # Mention long-running tests at the end.
3760           ofd=3
3761           for word in `func_get_status "$module"`; do
3762             if test "$word" = 'longrunning-test'; then
3763               ofd=4
3764               break
3765             fi
3766           done
3767           { echo "## begin gnulib module $module"
3768             echo
3769             cat "$tmp"/amsnippet
3770             echo "## end   gnulib module $module"
3771             echo
3772           } >&$ofd
3773         fi
3774         rm -f "$tmp"/amsnippet
3775         # Test whether there are some source files in subdirectories.
3776         for f in `func_get_filelist "$module"`; do
3777           case $f in
3778             lib/*/*.c | tests/*/*.c)
3779               uses_subdirs=yes
3780               break
3781               ;;
3782           esac
3783         done
3784       fi
3785     done
3786   } 3> "$tmp"/main_snippets 4> "$tmp"/longrunning_snippets
3787   # Generate dependencies here, since it eases the debugging of test failures.
3788   # If there are source files in subdirectories, prevent collision of the
3789   # object files (example: hash.c and libxml/hash.c).
3790   subdir_options=
3791   if test -n "$uses_subdirs"; then
3792     subdir_options=' subdir-objects'
3793   fi
3794   echo "AUTOMAKE_OPTIONS = 1.9.6 foreign${subdir_options}"
3795   echo
3796   if $for_test && ! $single_configure; then
3797     echo "ACLOCAL_AMFLAGS = -I ${testsbase_inverse}/${m4base}"
3798     echo
3799   fi
3800   # Nothing is being added to SUBDIRS; nevertheless the existence of this
3801   # variable is needed to avoid an error from automake:
3802   #   "AM_GNU_GETTEXT used but SUBDIRS not defined"
3803   echo "SUBDIRS = ."
3804   echo "TESTS ="
3805   echo "XFAIL_TESTS ="
3806   echo "TESTS_ENVIRONMENT ="
3807   echo "noinst_PROGRAMS ="
3808   if ! $for_test; then
3809     echo "check_PROGRAMS ="
3810   fi
3811   echo "noinst_HEADERS ="
3812   echo "noinst_LIBRARIES ="
3813   if $use_libtests; then
3814     if $for_test; then
3815       echo "noinst_LIBRARIES += libtests.a"
3816     else
3817       echo "check_LIBRARIES = libtests.a"
3818     fi
3819   fi
3820   # Automake versions < 1.11.4 create an empty pkgdatadir at
3821   # installation time if you specify pkgdata_DATA to empty.
3822   # See automake bugs #10997 and #11030:
3823   #  * http://debbugs.gnu.org/10997
3824   #  * http://debbugs.gnu.org/11030
3825   # So we need this workaround.
3826   if grep '^pkgdata_DATA *+=' "$tmp"/main_snippets "$tmp"/longrunning_snippets > /dev/null; then
3827     echo "pkgdata_DATA ="
3828   fi
3829   echo "EXTRA_DIST ="
3830   echo "BUILT_SOURCES ="
3831   echo "SUFFIXES ="
3832   echo "MOSTLYCLEANFILES = core *.stackdump"
3833   echo "MOSTLYCLEANDIRS ="
3834   echo "CLEANFILES ="
3835   echo "DISTCLEANFILES ="
3836   echo "MAINTAINERCLEANFILES ="
3837   # Execute edits that apply to the Makefile.am being generated.
3838   edit=0
3839   while test $edit != $makefile_am_edits; do
3840     edit=`expr $edit + 1`
3841     eval dir=\"\$makefile_am_edit${edit}_dir\"
3842     eval var=\"\$makefile_am_edit${edit}_var\"
3843     eval val=\"\$makefile_am_edit${edit}_val\"
3844     if test -n "$var"; then
3845       if test "${dir}Makefile.am" = "$destfile" || test "./${dir}Makefile.am" = "$destfile"; then
3846         echo "${var} += ${val}"
3847         eval "makefile_am_edit${edit}_var="
3848       fi
3849     fi
3850   done
3851   echo
3852   echo "AM_CPPFLAGS = \\"
3853   if $for_test; then
3854     echo "  -DGNULIB_STRICT_CHECKING=1 \\"
3855   fi
3856   if test -n "$witness_c_macro"; then
3857     echo "  -D$witness_c_macro=1 \\"
3858   fi
3859   if test -n "${witness_macro}"; then
3860     echo "  -D@${witness_macro}@=1 \\"
3861   fi
3862   echo "  -I. -I\$(srcdir) \\"
3863   echo "  -I${testsbase_inverse} -I\$(srcdir)/${testsbase_inverse} \\"
3864   echo "  -I${testsbase_inverse}/${sourcebase-lib} -I\$(srcdir)/${testsbase_inverse}/${sourcebase-lib}"
3865   echo
3866   local_ldadd_before=''
3867   local_ldadd_after=''
3868   if $use_libtests; then
3869     # All test programs need to be linked with libtests.a.
3870     # It needs to be passed to the linker before ${libname}.${libext}, since
3871     # the tests-related modules depend on the main modules.
3872     # It also needs to be passed to the linker after ${libname}.${libext}
3873     # because the latter might contain incomplete modules (such as the 'error'
3874     # module whose dependency to 'progname' is voluntarily omitted).
3875     # The LIBTESTS_LIBDEPS can be passed to the linker once or twice, it does
3876     # not matter.
3877     local_ldadd_before=' libtests.a'
3878     local_ldadd_after=' libtests.a $(LIBTESTS_LIBDEPS)'
3879   fi
3880   echo "LDADD =${local_ldadd_before} ${testsbase_inverse}/${sourcebase-lib}/${libname}.${libext}${local_ldadd_after}"
3881   echo
3882   if $use_libtests; then
3883     echo "libtests_a_SOURCES ="
3884     # Here we use $(LIBOBJS), not @LIBOBJS@. The value is the same. However,
3885     # automake during its analysis looks for $(LIBOBJS), not for @LIBOBJS@.
3886     echo "libtests_a_LIBADD = \$(${macro_prefix}tests_LIBOBJS)"
3887     echo "libtests_a_DEPENDENCIES = \$(${macro_prefix}tests_LIBOBJS)"
3888     echo "EXTRA_libtests_a_SOURCES ="
3889     # The circular dependency in LDADD requires this.
3890     echo "AM_LIBTOOLFLAGS = --preserve-dup-deps"
3891     echo
3892   fi
3893   # Many test scripts use ${EXEEXT} or ${srcdir}.
3894   # EXEEXT is defined by AC_PROG_CC through autoconf.
3895   # srcdir is defined by autoconf and automake.
3896   echo "TESTS_ENVIRONMENT += EXEEXT='@EXEEXT@' srcdir='\$(srcdir)'"
3897   echo
3898   cat "$tmp"/main_snippets "$tmp"/longrunning_snippets \
3899     | sed -e 's|\$(top_srcdir)/build-aux/|$(top_srcdir)/'"$auxdir"'/|g'
3900   echo "# Clean up after Solaris cc."
3901   echo "clean-local:"
3902   echo "        rm -rf SunWS_cache"
3903   echo
3904   echo "mostlyclean-local: mostlyclean-generic"
3905   echo "        @for dir in '' \$(MOSTLYCLEANDIRS); do \\"
3906   echo "          if test -n \"\$\$dir\" && test -d \$\$dir; then \\"
3907   echo "            echo \"rmdir \$\$dir\"; rmdir \$\$dir; \\"
3908   echo "          fi; \\"
3909   echo "        done; \\"
3910   echo "        :"
3911   rm -f "$tmp"/main_snippets "$tmp"/longrunning_snippets
3912 }
3913
3914 # func_emit_initmacro_start macro_prefix
3915 # emits the first few statements of the gl_INIT macro to standard output.
3916 # - macro_prefix    prefix of gl_EARLY, gl_INIT macros to use
3917 func_emit_initmacro_start ()
3918 {
3919   macro_prefix_arg="$1"
3920   # Overriding AC_LIBOBJ and AC_REPLACE_FUNCS has the effect of storing
3921   # platform-dependent object files in ${macro_prefix_arg}_LIBOBJS instead of
3922   # LIBOBJS.  The purpose is to allow several gnulib instantiations under
3923   # a single configure.ac file.  (AC_CONFIG_LIBOBJ_DIR does not allow this
3924   # flexibility.)
3925   # Furthermore it avoids an automake error like this when a Makefile.am
3926   # that uses pieces of gnulib also uses $(LIBOBJ):
3927   #   automatically discovered file `error.c' should not be explicitly mentioned
3928   echo "  m4_pushdef([AC_LIBOBJ], m4_defn([${macro_prefix_arg}_LIBOBJ]))"
3929   echo "  m4_pushdef([AC_REPLACE_FUNCS], m4_defn([${macro_prefix_arg}_REPLACE_FUNCS]))"
3930   # Overriding AC_LIBSOURCES has the same purpose of avoiding the automake
3931   # error when a Makefile.am that uses pieces of gnulib also uses $(LIBOBJ):
3932   #   automatically discovered file `error.c' should not be explicitly mentioned
3933   # We let automake know about the files to be distributed through the
3934   # EXTRA_lib_SOURCES variable.
3935   echo "  m4_pushdef([AC_LIBSOURCES], m4_defn([${macro_prefix_arg}_LIBSOURCES]))"
3936   # Create data variables for checking the presence of files that are mentioned
3937   # as AC_LIBSOURCES arguments. These are m4 variables, not shell variables,
3938   # because we want the check to happen when the configure file is created,
3939   # not when it is run. ${macro_prefix_arg}_LIBSOURCES_LIST is the list of
3940   # files to check for. ${macro_prefix_arg}_LIBSOURCES_DIR is the subdirectory
3941   # in which to expect them.
3942   echo "  m4_pushdef([${macro_prefix_arg}_LIBSOURCES_LIST], [])"
3943   echo "  m4_pushdef([${macro_prefix_arg}_LIBSOURCES_DIR], [])"
3944   echo "  gl_COMMON"
3945 }
3946
3947 # func_emit_initmacro_end macro_prefix
3948 # emits the last few statements of the gl_INIT macro to standard output.
3949 # - macro_prefix    prefix of gl_EARLY, gl_INIT macros to use
3950 func_emit_initmacro_end ()
3951 {
3952   macro_prefix_arg="$1"
3953   # Check the presence of files that are mentioned as AC_LIBSOURCES arguments.
3954   # The check is performed only when autoconf is run from the directory where
3955   # the configure.ac resides; if it is run from a different directory, the
3956   # check is skipped.
3957   echo "  m4_ifval(${macro_prefix_arg}_LIBSOURCES_LIST, ["
3958   echo "    m4_syscmd([test ! -d ]m4_defn([${macro_prefix_arg}_LIBSOURCES_DIR])[ ||"
3959   echo "      for gl_file in ]${macro_prefix_arg}_LIBSOURCES_LIST[ ; do"
3960   echo "        if test ! -r ]m4_defn([${macro_prefix_arg}_LIBSOURCES_DIR])[/\$gl_file ; then"
3961   echo "          echo \"missing file ]m4_defn([${macro_prefix_arg}_LIBSOURCES_DIR])[/\$gl_file\" >&2"
3962   echo "          exit 1"
3963   echo "        fi"
3964   echo "      done])dnl"
3965   echo "      m4_if(m4_sysval, [0], [],"
3966   echo "        [AC_FATAL([expected source file, required through AC_LIBSOURCES, not found])])"
3967   echo "  ])"
3968   echo "  m4_popdef([${macro_prefix_arg}_LIBSOURCES_DIR])"
3969   echo "  m4_popdef([${macro_prefix_arg}_LIBSOURCES_LIST])"
3970   echo "  m4_popdef([AC_LIBSOURCES])"
3971   echo "  m4_popdef([AC_REPLACE_FUNCS])"
3972   echo "  m4_popdef([AC_LIBOBJ])"
3973   echo "  AC_CONFIG_COMMANDS_PRE(["
3974   echo "    ${macro_prefix_arg}_libobjs="
3975   echo "    ${macro_prefix_arg}_ltlibobjs="
3976   echo "    if test -n \"\$${macro_prefix_arg}_LIBOBJS\"; then"
3977   echo "      # Remove the extension."
3978   echo "      sed_drop_objext='s/\\.o\$//;s/\\.obj\$//'"
3979   echo "      for i in \`for i in \$${macro_prefix_arg}_LIBOBJS; do echo \"\$i\"; done | sed -e \"\$sed_drop_objext\" | sort | uniq\`; do"
3980   echo "        ${macro_prefix_arg}_libobjs=\"\$${macro_prefix_arg}_libobjs \$i.\$ac_objext\""
3981   echo "        ${macro_prefix_arg}_ltlibobjs=\"\$${macro_prefix_arg}_ltlibobjs \$i.lo\""
3982   echo "      done"
3983   echo "    fi"
3984   echo "    AC_SUBST([${macro_prefix_arg}_LIBOBJS], [\$${macro_prefix_arg}_libobjs])"
3985   echo "    AC_SUBST([${macro_prefix_arg}_LTLIBOBJS], [\$${macro_prefix_arg}_ltlibobjs])"
3986   echo "  ])"
3987 }
3988
3989 # func_emit_initmacro_done macro_prefix sourcebase
3990 # emits a few statements after the gl_INIT macro to standard output.
3991 # - macro_prefix    prefix of gl_EARLY, gl_INIT macros to use
3992 # - sourcebase      directory relative to destdir where to place source code
3993 func_emit_initmacro_done ()
3994 {
3995   macro_prefix_arg="$1"
3996   sourcebase_arg="$2"
3997   echo
3998   echo "# Like AC_LIBOBJ, except that the module name goes"
3999   echo "# into ${macro_prefix_arg}_LIBOBJS instead of into LIBOBJS."
4000   echo "AC_DEFUN([${macro_prefix_arg}_LIBOBJ], ["
4001   echo "  AS_LITERAL_IF([\$1], [${macro_prefix_arg}_LIBSOURCES([\$1.c])])dnl"
4002   echo "  ${macro_prefix_arg}_LIBOBJS=\"\$${macro_prefix_arg}_LIBOBJS \$1.\$ac_objext\""
4003   echo "])"
4004   echo
4005   echo "# Like AC_REPLACE_FUNCS, except that the module name goes"
4006   echo "# into ${macro_prefix_arg}_LIBOBJS instead of into LIBOBJS."
4007   echo "AC_DEFUN([${macro_prefix_arg}_REPLACE_FUNCS], ["
4008   echo "  m4_foreach_w([gl_NAME], [\$1], [AC_LIBSOURCES(gl_NAME[.c])])dnl"
4009   echo "  AC_CHECK_FUNCS([\$1], , [${macro_prefix_arg}_LIBOBJ(\$ac_func)])"
4010   echo "])"
4011   echo
4012   echo "# Like AC_LIBSOURCES, except the directory where the source file is"
4013   echo "# expected is derived from the gnulib-tool parameterization,"
4014   echo "# and alloca is special cased (for the alloca-opt module)."
4015   echo "# We could also entirely rely on EXTRA_lib..._SOURCES."
4016   echo "AC_DEFUN([${macro_prefix_arg}_LIBSOURCES], ["
4017   echo "  m4_foreach([_gl_NAME], [\$1], ["
4018   echo "    m4_if(_gl_NAME, [alloca.c], [], ["
4019   echo "      m4_define([${macro_prefix_arg}_LIBSOURCES_DIR], [$sourcebase_arg])"
4020   echo "      m4_append([${macro_prefix_arg}_LIBSOURCES_LIST], _gl_NAME, [ ])"
4021   echo "    ])"
4022   echo "  ])"
4023   echo "])"
4024 }
4025
4026 # func_emit_autoconf_snippet indentation
4027 # emits the autoconf snippet of a module.
4028 # Input:
4029 # - indentation       spaces to prepend on each line
4030 # - local_gnulib_path  from --local-dir
4031 # - modcache          true or false, from --cache-modules/--no-cache-modules
4032 # - sed_replace_build_aux  sed expression that replaces reference to build-aux
4033 # - sed_replace_include_guard_prefix
4034 #                     sed expression for resolving ${gl_include_guard_prefix}
4035 # - module            the module name
4036 # - toplevel          true or false. 'false' means a subordinate use of
4037 #                     gnulib-tool.
4038 # - disable_libtool   true or false. It tells whether to disable libtool
4039 #                     handling even if it has been specified through the
4040 #                     command line options.
4041 # - disable_gettext   true or false. It tells whether to disable AM_GNU_GETTEXT
4042 #                     invocations.
4043 func_emit_autoconf_snippet ()
4044 {
4045   indentation="$1"
4046   if { case $module in
4047          gnumakefile | maintainer-makefile)
4048            # These modules are meant to be used only in the top-level directory.
4049            $toplevel ;;
4050          *)
4051            true ;;
4052        esac
4053      }; then
4054     func_get_autoconf_snippet "$module" \
4055       | sed -e '/^$/d;' -e "s/^/$indentation/" \
4056             -e "$sed_replace_build_aux" \
4057             -e "$sed_replace_include_guard_prefix" \
4058       | { if $disable_libtool; then
4059             sed -e 's/\$gl_cond_libtool/false/g' \
4060                 -e 's/gl_libdeps/gltests_libdeps/g' \
4061                 -e 's/gl_ltlibdeps/gltests_ltlibdeps/g'
4062           else
4063             cat
4064           fi
4065         } \
4066       | { if $disable_gettext; then
4067             sed -e 's/AM_GNU_GETTEXT(\[external\])/dnl you must add AM_GNU_GETTEXT([external]) or similar to configure.ac./'
4068           else
4069             # Don't indent AM_GNU_GETTEXT_VERSION line, as that confuses
4070             # autopoint through at least GNU gettext version 0.18.2.
4071             sed -e 's/^ *AM_GNU_GETTEXT_VERSION/AM_GNU_GETTEXT_VERSION/'
4072           fi
4073         }
4074     if test "$module" = 'alloca' && test "$libtool" = true && ! $disable_libtool; then
4075       echo 'changequote(,)dnl'
4076       echo 'LTALLOCA=`echo "$ALLOCA" | sed -e '"'"'s/\.[^.]* /.lo /g;s/\.[^.]*$/.lo/'"'"'`'
4077       echo 'changequote([, ])dnl'
4078       echo 'AC_SUBST([LTALLOCA])'
4079     fi
4080   fi
4081 }
4082
4083 # func_emit_autoconf_snippets modules verifier toplevel disable_libtool disable_gettext
4084 # collects and emit the autoconf snippets of a set of modules.
4085 # Input:
4086 # - local_gnulib_path  from --local-dir
4087 # - modcache          true or false, from --cache-modules/--no-cache-modules
4088 # - sed_replace_build_aux  sed expression that replaces reference to build-aux
4089 # - sed_replace_include_guard_prefix
4090 #                     sed expression for resolving ${gl_include_guard_prefix}
4091 # - modules           the list of modules.
4092 # - verifier          one of func_verify_module, func_verify_nontests_module,
4093 #                     func_verify_tests_module. It selects the subset of
4094 #                     $modules to consider.
4095 # - toplevel          true or false. 'false' means a subordinate use of
4096 #                     gnulib-tool.
4097 # - disable_libtool   true or false. It tells whether to disable libtool
4098 #                     handling even if it has been specified through the
4099 #                     command line options.
4100 # - disable_gettext   true or false. It tells whether to disable AM_GNU_GETTEXT
4101 #                     invocations.
4102 func_emit_autoconf_snippets ()
4103 {
4104   verifier="$2"
4105   toplevel="$3"
4106   disable_libtool="$4"
4107   disable_gettext="$5"
4108   if test "$cond_dependencies" = true; then
4109     for m in $modules; do echo $m; done | LC_ALL=C sort -u > "$tmp"/modules
4110     # Emit the autoconf code for the unconditional modules.
4111     for module in $1; do
4112       eval $verifier
4113       if test -n "$module"; then
4114         if func_cond_module_p "$module"; then
4115           :
4116         else
4117           func_emit_autoconf_snippet "  "
4118         fi
4119       fi
4120     done
4121     # Initialize the shell variables indicating that the modules are enabled.
4122     for module in $1; do
4123       eval $verifier
4124       if test -n "$module"; then
4125         if func_cond_module_p "$module"; then
4126           func_module_shellvar_name "$module"
4127           echo "  $shellvar=false"
4128         fi
4129       fi
4130     done
4131     # Emit the autoconf code for the conditional modules, each in a separate
4132     # function. This makes it possible to support cycles among conditional
4133     # modules.
4134     for module in $1; do
4135       eval $verifier
4136       if test -n "$module"; then
4137         if func_cond_module_p "$module"; then
4138           func_module_shellfunc_name "$module"
4139           func_module_shellvar_name "$module"
4140           echo "  $shellfunc ()"
4141           echo '  {'
4142           echo "    if ! \$$shellvar; then"
4143           func_emit_autoconf_snippet "      "
4144           echo "      $shellvar=true"
4145           deps=`func_get_dependencies $module | sed -e "$sed_dependencies_without_conditions"`
4146           # Intersect $deps with the modules list $1.
4147           deps=`for m in $deps; do echo $m; done | LC_ALL=C sort -u | LC_ALL=C join - "$tmp"/modules`
4148           for dep in $deps; do
4149             if func_cond_module_p "$dep"; then
4150               func_module_shellfunc_name "$dep"
4151               func_cond_module_condition "$module" "$dep"
4152               if test "$condition" != true; then
4153                 echo "      if $condition; then"
4154                 echo "        $shellfunc"
4155                 echo '      fi'
4156               else
4157                 echo "      $shellfunc"
4158               fi
4159             else
4160               # The autoconf code for $dep has already been emitted above and
4161               # therefore is already executed when this function is run.
4162               :
4163             fi
4164           done
4165           echo '    fi'
4166           echo '  }'
4167         fi
4168       fi
4169     done
4170     # Emit the dependencies from the unconditional to the conditional modules.
4171     for module in $1; do
4172       eval $verifier
4173       if test -n "$module"; then
4174         if func_cond_module_p "$module"; then
4175           :
4176         else
4177           deps=`func_get_dependencies $module | sed -e "$sed_dependencies_without_conditions"`
4178           # Intersect $deps with the modules list $1.
4179           deps=`for m in $deps; do echo $m; done | LC_ALL=C sort -u | LC_ALL=C join - "$tmp"/modules`
4180           for dep in $deps; do
4181             if func_cond_module_p "$dep"; then
4182               func_module_shellfunc_name "$dep"
4183               func_cond_module_condition "$module" "$dep"
4184               if test "$condition" != true; then
4185                 echo "  if $condition; then"
4186                 echo "    $shellfunc"
4187                 echo '  fi'
4188               else
4189                 echo "  $shellfunc"
4190               fi
4191             else
4192               # The autoconf code for $dep has already been emitted above and
4193               # therefore is already executed when this code is run.
4194               :
4195             fi
4196           done
4197         fi
4198       fi
4199     done
4200     # Define the Automake conditionals.
4201     echo "  m4_pattern_allow([^${macro_prefix}_GNULIB_ENABLED_])"
4202     for module in $1; do
4203       eval $verifier
4204       if test -n "$module"; then
4205         if func_cond_module_p "$module"; then
4206           func_module_conditional_name "$module"
4207           func_module_shellvar_name "$module"
4208           echo "  AM_CONDITIONAL([$conditional], [\$$shellvar])"
4209         fi
4210       fi
4211     done
4212   else
4213     # Ignore the conditions, and enable all modules unconditionally.
4214     for module in $1; do
4215       eval $verifier
4216       if test -n "$module"; then
4217         func_emit_autoconf_snippet "  "
4218       fi
4219     done
4220   fi
4221 }
4222
4223 # func_emit_pre_early_macros require indentation modules
4224 # The require parameter can be ':' (AC_REQUIRE) or 'false' (direct call).
4225 func_emit_pre_early_macros ()
4226 {
4227   echo
4228   echo "${2}# Pre-early section."
4229   if $1; then
4230     _pre_early_snippet="echo \"${2}AC_REQUIRE([\$_pre_early_macro])\""
4231   else
4232     _pre_early_snippet="echo \"${2}\$_pre_early_macro\""
4233   fi
4234
4235   # We need to call gl_USE_SYSTEM_EXTENSIONS before gl_PROG_AR_RANLIB.  Doing
4236   # AC_REQUIRE in configure-ac.early is not early enough.
4237   _pre_early_macro="gl_USE_SYSTEM_EXTENSIONS"
4238   case "${nl}${3}${nl}" in
4239     *${nl}extensions${nl}*) eval "$_pre_early_snippet" ;;
4240   esac
4241
4242   _pre_early_macro="gl_PROG_AR_RANLIB"
4243   eval "$_pre_early_snippet"
4244   echo
4245 }
4246
4247 # func_reconstruct_cached_dir
4248 # callback for func_reconstruct_cached_local_gnulib_path
4249 # Input:
4250 # - destdir         from --dir
4251 # Output:
4252 # - local_gnulib_path  restored '--local-dir' path from cache
4253 func_reconstruct_cached_dir ()
4254 {
4255   cached_dir=$1
4256   if test -n "$cached_dir"; then
4257     case "$destdir" in
4258       /*)
4259         func_path_append local_gnulib_path "$destdir/$cached_dir" ;;
4260       *)
4261         case "$cached_dir" in
4262           /*)
4263             func_path_append local_gnulib_path "$destdir/$cached_dir" ;;
4264           *)
4265             func_relconcat "$destdir" "$cached_dir"
4266             func_path_append local_gnulib_path "$relconcat" ;;
4267         esac ;;
4268     esac
4269   fi
4270 }
4271
4272 # func_reconstruct_cached_local_gnulib_path
4273 # reconstruct local_gnulib_path from cached_local_gnulib_path to be set
4274 # relatively to $destdir again.
4275 # Input:
4276 # - cached_local_gnulib_path  local_gnulib_path stored within gnulib-cache.m4
4277 # - destdir         from --dir
4278 # Output:
4279 # - local_gnulib_path  restored '--local-dir' path from cache
4280 func_reconstruct_cached_local_gnulib_path ()
4281 {
4282   func_path_foreach "$cached_local_gnulib_path" func_reconstruct_cached_dir %dir%
4283 }
4284
4285 # func_import modules
4286 # Uses also the variables
4287 # - mode            import or add-import or remove-import or update
4288 # - destdir         target directory
4289 # - local_gnulib_path  from --local-dir
4290 # - modcache        true or false, from --cache-modules/--no-cache-modules
4291 # - verbose         integer, default 0, inc/decremented by --verbose/--quiet
4292 # - libname         library name
4293 # - supplied_libname  true if --lib was given, blank otherwise
4294 # - sourcebase      directory relative to destdir where to place source code
4295 # - m4base          directory relative to destdir where to place *.m4 macros
4296 # - pobase          directory relative to destdir where to place *.po files
4297 # - docbase         directory relative to destdir where to place doc files
4298 # - testsbase       directory relative to destdir where to place unit test code
4299 # - auxdir          directory relative to destdir where to place build aux files
4300 # - inctests        true if --with-tests was given, false otherwise
4301 # - incobsolete     true if --with-obsolete was given, blank otherwise
4302 # - inc_cxx_tests   true if --with-c++-tests was given, blank otherwise
4303 # - inc_longrunning_tests  true if --with-longrunning-tests was given, blank
4304 #                          otherwise
4305 # - inc_privileged_tests  true if --with-privileged-tests was given, blank
4306 #                         otherwise
4307 # - inc_unportable_tests  true if --with-unportable-tests was given, blank
4308 #                         otherwise
4309 # - inc_all_tests   true if --with-all-tests was given, blank otherwise
4310 # - avoidlist       list of modules to avoid, from --avoid
4311 # - cond_dependencies  true if --conditional-dependencies was given, false if
4312 #                      --no-conditional-dependencies was given, blank otherwise
4313 # - lgpl            yes or a number if library's license shall be LGPL,
4314 #                   blank otherwise
4315 # - makefile_name   from --makefile-name
4316 # - libtool         true if --libtool was given, false if --no-libtool was
4317 #                   given, blank otherwise
4318 # - guessed_libtool true if the configure.ac file uses libtool, false otherwise
4319 # - macro_prefix    prefix of gl_EARLY, gl_INIT macros to use
4320 # - po_domain       prefix of i18n domain to use (without -gnulib suffix)
4321 # - witness_c_macro  from --witness-c-macro
4322 # - vc_files        true if --vc-files was given, false if --no-vc-files was
4323 #                   given, blank otherwise
4324 # - autoconf_minversion  minimum supported autoconf version
4325 # - doit            : if actions shall be executed, false if only to be printed
4326 # - symbolic        true if files should be symlinked, copied otherwise
4327 # - lsymbolic       true if files from local_gnulib_path should be symlinked,
4328 #                   copied otherwise
4329 # - do_copyrights   true if copyright notices in files should be replaced,
4330 #                   blank otherwise
4331 func_import ()
4332 {
4333   # Get the cached settings.
4334   # In 'import' mode, we read them only for the purpose of knowing the old
4335   # installed file list, and don't use them as defaults.
4336   cached_local_gnulib_path=
4337   cached_specified_modules=
4338   cached_incobsolete=
4339   cached_inc_cxx_tests=
4340   cached_inc_longrunning_tests=
4341   cached_inc_privileged_tests=
4342   cached_inc_unportable_tests=
4343   cached_inc_all_tests=
4344   cached_avoidlist=
4345   cached_sourcebase=
4346   cached_m4base=
4347   cached_pobase=
4348   cached_docbase=
4349   cached_testsbase=
4350   cached_inctests=
4351   cached_libname=
4352   cached_lgpl=
4353   cached_makefile_name=
4354   cached_cond_dependencies=
4355   cached_libtool=
4356   cached_macro_prefix=
4357   cached_po_domain=
4358   cached_witness_c_macro=
4359   cached_vc_files=
4360   cached_files=
4361   if test -f "$destdir"/$m4base/gnulib-cache.m4; then
4362     cached_libtool=false
4363     my_sed_traces='
4364       s,#.*$,,
4365       s,^dnl .*$,,
4366       s, dnl .*$,,
4367       /gl_LOCAL_DIR(/ {
4368         s,^.*gl_LOCAL_DIR([[ ]*\([^]"$`\\)]*\).*$,cached_local_gnulib_path="\1",p
4369       }
4370       /gl_MODULES(/ {
4371         ta
4372         :a
4373           s/)/)/
4374           tb
4375           N
4376           ba
4377         :b
4378         s,^.*gl_MODULES([[ ]*\([^]"$`\\)]*\).*$,cached_specified_modules="\1",p
4379       }
4380       /gl_WITH_OBSOLETE/ {
4381         s,^.*$,cached_incobsolete=true,p
4382       }
4383       /gl_WITH_CXX_TESTS/ {
4384         s,^.*$,cached_inc_cxx_tests=true,p
4385       }
4386       /gl_WITH_LONGRUNNING_TESTS/ {
4387         s,^.*$,cached_inc_longrunning_tests=true,p
4388       }
4389       /gl_WITH_PRIVILEGED_TESTS/ {
4390         s,^.*$,cached_inc_privileged_tests=true,p
4391       }
4392       /gl_WITH_UNPORTABLE_TESTS/ {
4393         s,^.*$,cached_inc_unportable_tests=true,p
4394       }
4395       /gl_WITH_ALL_TESTS/ {
4396         s,^.*$,cached_inc_all_tests=true,p
4397       }
4398       /gl_AVOID(/ {
4399         s,^.*gl_AVOID([[ ]*\([^]"$`\\)]*\).*$,cached_avoidlist="\1",p
4400       }
4401       /gl_SOURCE_BASE(/ {
4402         s,^.*gl_SOURCE_BASE([[ ]*\([^]"$`\\)]*\).*$,cached_sourcebase="\1",p
4403       }
4404       /gl_M4_BASE(/ {
4405         s,^.*gl_M4_BASE([[ ]*\([^]"$`\\)]*\).*$,cached_m4base="\1",p
4406       }
4407       /gl_PO_BASE(/ {
4408         s,^.*gl_PO_BASE([[ ]*\([^]"$`\\)]*\).*$,cached_pobase="\1",p
4409       }
4410       /gl_DOC_BASE(/ {
4411         s,^.*gl_DOC_BASE([[ ]*\([^]"$`\\)]*\).*$,cached_docbase="\1",p
4412       }
4413       /gl_TESTS_BASE(/ {
4414         s,^.*gl_TESTS_BASE([[ ]*\([^]"$`\\)]*\).*$,cached_testsbase="\1",p
4415       }
4416       /gl_WITH_TESTS/ {
4417         s,^.*$,cached_inctests=true,p
4418       }
4419       /gl_LIB(/ {
4420         s,^.*gl_LIB([[ ]*\([^]"$`\\)]*\).*$,cached_libname="\1",p
4421       }
4422       /gl_LGPL(/ {
4423         s,^.*gl_LGPL([[ ]*\([^]"$`\\)]*\).*$,cached_lgpl="\1",p
4424       }
4425       /gl_LGPL/ {
4426         s,^.*$,cached_lgpl=yes,p
4427       }
4428       /gl_MAKEFILE_NAME(/ {
4429         s,^.*gl_MAKEFILE_NAME([[ ]*\([^]"$`\\)]*\).*$,cached_makefile_name="\1",p
4430       }
4431       /gl_CONDITIONAL_DEPENDENCIES/ {
4432         s,^.*$,cached_cond_dependencies=true,p
4433       }
4434       /gl_LIBTOOL/ {
4435         s,^.*$,cached_libtool=true,p
4436       }
4437       /gl_MACRO_PREFIX(/ {
4438         s,^.*gl_MACRO_PREFIX([[ ]*\([^]"$`\\)]*\).*$,cached_macro_prefix="\1",p
4439       }
4440       /gl_PO_DOMAIN(/ {
4441         s,^.*gl_PO_DOMAIN([[ ]*\([^]"$`\\)]*\).*$,cached_po_domain="\1",p
4442       }
4443       /gl_WITNESS_C_MACRO(/ {
4444         s,^.*gl_WITNESS_C_MACRO([[ ]*\([^]"$`\\)]*\).*$,cached_witness_c_macro="\1",p
4445       }
4446       /gl_VC_FILES(/ {
4447         s,^.*gl_VC_FILES([[ ]*\([^]"$`\\)]*\).*$,cached_vc_files="\1",p
4448       }'
4449     eval `sed -n -e "$my_sed_traces" < "$destdir"/$m4base/gnulib-cache.m4`
4450     if test -f "$destdir"/$m4base/gnulib-comp.m4; then
4451       my_sed_traces='
4452         s,#.*$,,
4453         s,^dnl .*$,,
4454         s, dnl .*$,,
4455         /AC_DEFUN(\['"${cached_macro_prefix}"'_FILE_LIST\], \[/ {
4456           s,^.*$,cached_files=",p
4457           n
4458           ta
4459           :a
4460           s,^\]).*$,",
4461           tb
4462           s,["$`\\],,g
4463           p
4464           n
4465           ba
4466           :b
4467           p
4468         }'
4469       eval `sed -n -e "$my_sed_traces" < "$destdir"/$m4base/gnulib-comp.m4`
4470     fi
4471   fi
4472
4473   if test "$mode" = import; then
4474     # In 'import' mode, the new set of specified modules overrides the cached
4475     # set of modules. Ignore the cached settings.
4476     specified_modules="$1"
4477   else
4478     # Merge the cached settings with the specified ones.
4479     # The m4base must be the same as expected from the pathname.
4480     if test -n "$cached_m4base" && test "$cached_m4base" != "$m4base"; then
4481       func_fatal_error "$m4base/gnulib-cache.m4 is expected to contain gl_M4_BASE([$m4base])"
4482     fi
4483     # The local_gnulib_path defaults to the cached one. Recall that the cached one
4484     # is relative to $destdir, whereas the one we use is relative to . or absolute.
4485     if test -z "$local_gnulib_path"; then
4486       func_reconstruct_cached_local_gnulib_path
4487     fi
4488     case $mode in
4489       add-import)
4490         # Append the cached and the specified module names. So that
4491         # "gnulib-tool --add-import foo" means to add the module foo.
4492         specified_modules="$cached_specified_modules $1"
4493         ;;
4494       remove-import)
4495         # Take the cached module names, minus the specified module names.
4496         specified_modules=
4497         if $have_associative; then
4498           # Use an associative array, for O(N) worst-case run time.
4499           declare -A to_remove
4500           for m in $1; do
4501             eval 'to_remove[$m]=yes'
4502           done
4503           for module in $cached_specified_modules; do
4504             if eval 'test -z "${to_remove[$module]}"'; then
4505               func_append specified_modules "$module "
4506             fi
4507           done
4508         else
4509           # This loop has O(N**2) worst-case run time.
4510           for module in $cached_specified_modules; do
4511             to_remove=
4512             for m in $1; do
4513               if test "$m" = "$module"; then
4514                 to_remove=yes
4515                 break
4516               fi
4517             done
4518             if test -z "$to_remove"; then
4519               func_append specified_modules "$module "
4520             fi
4521           done
4522         fi
4523         ;;
4524       update)
4525         # Take the cached module names. There are no specified module names.
4526         specified_modules="$cached_specified_modules"
4527         ;;
4528     esac
4529     # Included obsolete modules among the dependencies if specified either way.
4530     if test -z "$incobsolete"; then
4531       incobsolete="$cached_incobsolete"
4532     fi
4533     # Included special kinds of tests modules among the dependencies if specified
4534     # either way.
4535     if test -z "$inc_cxx_tests"; then
4536       inc_cxx_tests="$cached_inc_cxx_tests"
4537     fi
4538     if test -z "$inc_longrunning_tests"; then
4539       inc_longrunning_tests="$cached_inc_longrunning_tests"
4540     fi
4541     if test -z "$inc_privileged_tests"; then
4542       inc_privileged_tests="$cached_inc_privileged_tests"
4543     fi
4544     if test -z "$inc_unportable_tests"; then
4545       inc_unportable_tests="$cached_inc_unportable_tests"
4546     fi
4547     if test -z "$inc_all_tests"; then
4548       inc_all_tests="$cached_inc_all_tests"
4549     fi
4550     # Append the cached and the specified avoidlist. This is probably better
4551     # than dropping the cached one when --avoid is specified at least once.
4552     avoidlist=`for m in $cached_avoidlist $avoidlist; do echo $m; done | LC_ALL=C sort -u`
4553     avoidlist=`echo $avoidlist`
4554
4555     # The sourcebase defaults to the cached one.
4556     if test -z "$sourcebase"; then
4557       sourcebase="$cached_sourcebase"
4558       if test -z "$sourcebase"; then
4559         func_fatal_error "missing --source-base option"
4560       fi
4561     fi
4562     # The pobase defaults to the cached one.
4563     if test -z "$pobase"; then
4564       pobase="$cached_pobase"
4565     fi
4566     # The docbase defaults to the cached one.
4567     if test -z "$docbase"; then
4568       docbase="$cached_docbase"
4569       if test -z "$docbase"; then
4570         func_fatal_error "missing --doc-base option. --doc-base has been introduced on 2006-07-11; if your last invocation of 'gnulib-tool --import' is before that date, you need to run 'gnulib-tool --import' once, with a --doc-base option."
4571       fi
4572     fi
4573     # The testsbase defaults to the cached one.
4574     if test -z "$testsbase"; then
4575       testsbase="$cached_testsbase"
4576       if test -z "$testsbase"; then
4577         func_fatal_error "missing --tests-base option"
4578       fi
4579     fi
4580     # Require the tests if specified either way.
4581     if ! $inctests; then
4582       inctests="$cached_inctests"
4583       if test -z "$inctests"; then
4584         inctests=false
4585       fi
4586     fi
4587     # The libname defaults to the cached one.
4588     if test -z "$supplied_libname"; then
4589       libname="$cached_libname"
4590       if test -z "$libname"; then
4591         func_fatal_error "missing --lib option"
4592       fi
4593     fi
4594     # Require LGPL if specified either way.
4595     if test -z "$lgpl"; then
4596       lgpl="$cached_lgpl"
4597     fi
4598     # The makefile_name defaults to the cached one.
4599     if test -z "$makefile_name"; then
4600       makefile_name="$cached_makefile_name"
4601     fi
4602     # Use conditional dependencies if specified either way.
4603     if test -z "$cond_dependencies"; then
4604       cond_dependencies="$cached_cond_dependencies"
4605     fi
4606     # Use libtool if specified either way, or if guessed.
4607     if test -z "$libtool"; then
4608       if test -n "$cached_m4base"; then
4609         libtool="$cached_libtool"
4610       else
4611         libtool="$guessed_libtool"
4612       fi
4613     fi
4614     # The macro_prefix defaults to the cached one.
4615     if test -z "$macro_prefix"; then
4616       macro_prefix="$cached_macro_prefix"
4617       if test -z "$macro_prefix"; then
4618         func_fatal_error "missing --macro-prefix option"
4619       fi
4620     fi
4621     # The po_domain defaults to the cached one.
4622     if test -z "$po_domain"; then
4623       po_domain="$cached_po_domain"
4624     fi
4625     # The witness_c_macro defaults to the cached one.
4626     if test -z "$witness_c_macro"; then
4627       witness_c_macro="$cached_witness_c_macro"
4628     fi
4629     # The vc_files defaults to the cached one.
4630     if test -z "$vc_files"; then
4631       vc_files="$cached_vc_files"
4632     fi
4633     # Ensure constraints.
4634     if test "$cond_dependencies" = true && $inctests; then
4635       echo "gnulib-tool: option --conditional-dependencies is not supported with --with-tests" 1>&2
4636       func_exit 1
4637     fi
4638   fi
4639   # --without-*-tests options are not supported here.
4640   excl_cxx_tests=
4641   excl_longrunning_tests=
4642   excl_privileged_tests=
4643   excl_unportable_tests=
4644
4645   # Canonicalize the list of specified modules.
4646   specified_modules=`for m in $specified_modules; do echo $m; done | LC_ALL=C sort -u`
4647
4648   # Include all kinds of tests modules if --with-all-tests was specified.
4649   inc_all_direct_tests="$inc_all_tests"
4650   inc_all_indirect_tests="$inc_all_tests"
4651
4652   # Determine final module list.
4653   modules="$specified_modules"
4654   func_modules_transitive_closure
4655   if test $verbose -ge 0; then
4656     func_show_module_list
4657   fi
4658   final_modules="$modules"
4659
4660   # Determine main module list and tests-related module list separately.
4661   func_modules_transitive_closure_separately
4662
4663   # Determine whether a $testsbase/libtests.a is needed.
4664   func_determine_use_libtests
4665
4666   # Add the dummy module to the main module list or to the tests-related module
4667   # list if needed.
4668   func_modules_add_dummy_separately
4669
4670   # If --lgpl, verify that the licenses of modules are compatible.
4671   if test -n "$lgpl"; then
4672     license_incompatibilities=
4673     for module in $main_modules; do
4674       license=`func_get_license $module`
4675       case $license in
4676         'GPLed build tool') ;;
4677         'public domain' | 'unlimited' | 'unmodifiable license text') ;;
4678         *)
4679           case "$lgpl" in
4680             yes | 3)
4681               case $license in
4682                 LGPL | LGPLv2+ | LGPLv3+) ;;
4683                 *) func_append license_incompatibilities "$module $license$nl" ;;
4684               esac
4685               ;;
4686             2)
4687               case $license in
4688                 LGPLv2+) ;;
4689                 *) func_append license_incompatibilities "$module $license$nl" ;;
4690               esac
4691               ;;
4692             *) func_fatal_error "invalid value lgpl=$lgpl" ;;
4693           esac
4694           ;;
4695       esac
4696     done
4697     if test -n "$license_incompatibilities"; then
4698       # Format the license incompatibilities as a table.
4699       sed_expand_column1_width50_indent17='s,^\([^ ]*\) ,\1                                                   ,
4700 s,^\(.................................................[^ ]*\) *,                 \1 ,'
4701       license_incompatibilities=`echo "$license_incompatibilities" | sed -e "$sed_expand_column1_width50_indent17"`
4702       func_fatal_error "incompatible license on modules:$nl$license_incompatibilities"
4703     fi
4704   fi
4705
4706   # Show banner notice of every module.
4707   modules="$main_modules"
4708   func_modules_notice
4709
4710   # Determine script to apply to imported library files.
4711   sed_transform_lib_file=
4712   for module in $main_modules; do
4713     if test $module = config-h; then
4714       # Assume config.h exists, and that -DHAVE_CONFIG_H is omitted.
4715       sed_transform_lib_file=$sed_transform_lib_file'
4716         s/^#ifdef[       ]*HAVE_CONFIG_H[        ]*$/#if 1/
4717       '
4718       break
4719     fi
4720   done
4721   sed_transform_main_lib_file="$sed_transform_lib_file"
4722   if test -n "$do_copyrights"; then
4723     if test -n "$lgpl"; then
4724       # Update license.
4725       case "$lgpl" in
4726         yes | 3)
4727           sed_transform_main_lib_file=$sed_transform_main_lib_file'
4728             s/GNU General/GNU Lesser General/g
4729             s/General Public License/Lesser General Public License/g
4730             s/Lesser Lesser General Public License/Lesser General Public License/g
4731           '
4732           ;;
4733         2)
4734           sed_transform_main_lib_file=$sed_transform_main_lib_file'
4735             s/GNU General/GNU Lesser General/g
4736             s/General Public License/Lesser General Public License/g
4737             s/Lesser Lesser General Public License/Lesser General Public License/g
4738
4739             s/version [23]\([ ,]\)/version 2.1\1/g
4740           '
4741           ;;
4742         *) func_fatal_error "invalid value lgpl=$lgpl" ;;
4743       esac
4744     else
4745       # Update license.
4746       sed_transform_main_lib_file=$sed_transform_main_lib_file'
4747         s/GNU Lesser General/GNU General/g
4748         s/Lesser General Public License/General Public License/g
4749
4750         s/GNU Library General/GNU General/g
4751         s/Library General Public License/General Public License/g
4752
4753         s/version 2\(.1\)\{0,1\}\([ ,]\)/version 3\2/g
4754       '
4755     fi
4756   fi
4757
4758   # Determine script to apply to auxiliary files that go into $auxdir/.
4759   sed_transform_build_aux_file=
4760   if test -n "$do_copyrights"; then
4761     # Update license.
4762     sed_transform_build_aux_file=$sed_transform_build_aux_file'
4763       s/GNU Lesser General/GNU General/g
4764       s/Lesser General Public License/General Public License/g
4765
4766       s/GNU Library General/GNU General/g
4767       s/Library General Public License/General Public License/g
4768
4769       s/version 2\(.1\)\{0,1\}\([ ,]\)/version 3\2/g
4770     '
4771   fi
4772
4773   # Determine script to apply to library files that go into $testsbase/.
4774   sed_transform_testsrelated_lib_file="$sed_transform_lib_file"
4775   if test -n "$do_copyrights"; then
4776     # Update license.
4777     sed_transform_testsrelated_lib_file=$sed_transform_testsrelated_lib_file'
4778       s/GNU Lesser General/GNU General/g
4779       s/Lesser General Public License/General Public License/g
4780
4781       s/GNU Library General/GNU General/g
4782       s/Library General Public License/General Public License/g
4783
4784       s/version 2\(.1\)\{0,1\}\([ ,]\)/version 3\2/g
4785     '
4786   fi
4787
4788   # Determine the final file lists.
4789   func_modules_to_filelist_separately
4790
4791   test -n "$files" \
4792     || func_fatal_error "refusing to do nothing"
4793
4794   # Add m4/gnulib-tool.m4 to the file list. It is not part of any module.
4795   new_files="$files m4/gnulib-tool.m4"
4796   old_files="$cached_files"
4797   if test -f "$destdir"/$m4base/gnulib-tool.m4; then
4798     func_append old_files " m4/gnulib-tool.m4"
4799   fi
4800
4801   rewritten='%REWRITTEN%'
4802   sed_rewrite_old_files="\
4803     s,^build-aux/,$rewritten$auxdir/,
4804     s,^doc/,$rewritten$cached_docbase/,
4805     s,^lib/,$rewritten$cached_sourcebase/,
4806     s,^m4/,$rewritten$cached_m4base/,
4807     s,^tests/,$rewritten$cached_testsbase/,
4808     s,^tests=lib/,$rewritten$cached_testsbase/,
4809     s,^top/,$rewritten,
4810     s,^$rewritten,,"
4811   sed_rewrite_new_files="\
4812     s,^build-aux/,$rewritten$auxdir/,
4813     s,^doc/,$rewritten$docbase/,
4814     s,^lib/,$rewritten$sourcebase/,
4815     s,^m4/,$rewritten$m4base/,
4816     s,^tests/,$rewritten$testsbase/,
4817     s,^tests=lib/,$rewritten$testsbase/,
4818     s,^top/,$rewritten,
4819     s,^$rewritten,,"
4820
4821   # Create directories.
4822   { echo "$sourcebase"
4823     echo "$m4base"
4824     if test -n "$pobase"; then
4825       echo "$pobase"
4826     fi
4827     docfiles=`echo "$files" | sed -n -e 's,^doc/,,p'`
4828     if test -n "$docfiles"; then
4829       echo "$docbase"
4830     fi
4831     if $inctests; then
4832       echo "$testsbase"
4833     fi
4834     echo "$auxdir"
4835     for f in $files; do echo $f; done \
4836       | sed -e "$sed_rewrite_new_files" \
4837       | sed -n -e 's,^\(.*\)/[^/]*,\1,p' \
4838       | LC_ALL=C sort -u
4839   } > "$tmp"/dirs
4840   { # Rearrange file descriptors. Needed because "while ... done < ..."
4841     # constructs are executed in a subshell e.g. by Solaris 10 /bin/sh.
4842     exec 5<&0 < "$tmp"/dirs
4843     while read d; do
4844       if test ! -d "$destdir/$d"; then
4845         if $doit; then
4846           echo "Creating directory $destdir/$d"
4847           mkdir -p "$destdir/$d" || func_fatal_error "failed"
4848         else
4849           echo "Create directory $destdir/$d"
4850         fi
4851       fi
4852     done
4853     exec 0<&5 5<&-
4854   }
4855
4856   # Copy files or make symbolic links. Remove obsolete files.
4857   added_files=''
4858   removed_files=''
4859   delimiter='   '
4860   # Construct a table with 2 columns: rewritten-file-name original-file-name,
4861   # representing the files according to the last gnulib-tool invocation.
4862   for f in $old_files; do echo $f; done \
4863     | sed -e "s,^.*\$,&$delimiter&," -e "$sed_rewrite_old_files" \
4864     | LC_ALL=C sort \
4865     > "$tmp"/old-files
4866   # Construct a table with 2 columns: rewritten-file-name original-file-name,
4867   # representing the files after this gnulib-tool invocation.
4868   for f in $new_files; do echo $f; done \
4869     | sed -e "s,^.*\$,&$delimiter&," -e "$sed_rewrite_new_files" \
4870     | LC_ALL=C sort \
4871     > "$tmp"/new-files
4872   # First the files that are in old-files, but not in new-files:
4873   sed_take_first_column='s,'"$delimiter"'.*,,'
4874   for g in `LC_ALL=C join -t"$delimiter" -v1 "$tmp"/old-files "$tmp"/new-files | sed -e "$sed_take_first_column"`; do
4875     # Remove the file. Do nothing if the user already removed it.
4876     if test -f "$destdir/$g" || test -h "$destdir/$g"; then
4877       if $doit; then
4878         echo "Removing file $g (backup in ${g}~)"
4879         mv -f "$destdir/$g" "$destdir/${g}~" || func_fatal_error "failed"
4880       else
4881         echo "Remove file $g (backup in ${g}~)"
4882       fi
4883       func_append removed_files "$g$nl"
4884     fi
4885   done
4886   # func_add_or_update handles a file that ought to be present afterwards.
4887   # Uses parameters
4888   # - f             the original file name
4889   # - g             the rewritten file name
4890   # - already_present  nonempty if the file should already exist, empty
4891   #                    otherwise
4892   func_add_or_update ()
4893   {
4894     of="$f"
4895     case "$f" in
4896       tests=lib/*) f=`echo "$f" | sed -e 's,^tests=lib/,lib/,'` ;;
4897     esac
4898     is_binary_file=
4899     case "$f" in
4900       *.class | *.mo ) is_binary_file=true ;;
4901     esac
4902     func_dest_tmpfilename "$g"
4903     func_lookup_file "$f"
4904     cp "$lookedup_file" "$tmpfile" || func_fatal_error "failed"
4905     if test -n "$sed_transform_main_lib_file" \
4906        && test -z "$is_binary_file"; then
4907       case "$of" in
4908         lib/*)
4909           sed -e "$sed_transform_main_lib_file" \
4910             < "$lookedup_file" > "$tmpfile" || func_fatal_error "failed"
4911           ;;
4912       esac
4913     fi
4914     if test -n "$sed_transform_build_aux_file" \
4915        && test -z "$is_binary_file"; then
4916       case "$of" in
4917         build-aux/*)
4918           sed -e "$sed_transform_build_aux_file" \
4919             < "$lookedup_file" > "$tmpfile" || func_fatal_error "failed"
4920           ;;
4921       esac
4922     fi
4923     if test -n "$sed_transform_testsrelated_lib_file" \
4924        && test -z "$is_binary_file"; then
4925       case "$of" in
4926         tests=lib/*)
4927           sed -e "$sed_transform_testsrelated_lib_file" \
4928             < "$lookedup_file" > "$tmpfile" || func_fatal_error "failed"
4929           ;;
4930       esac
4931     fi
4932     if test -f "$destdir/$g"; then
4933       # The file already exists.
4934       func_update_file
4935     else
4936       # Install the file.
4937       # Don't protest if the file should be there but isn't: it happens
4938       # frequently that developers don't put autogenerated files under version control.
4939       func_add_file
4940       func_append added_files "$g$nl"
4941     fi
4942     rm -f "$tmpfile"
4943   }
4944   # Then the files that are in new-files, but not in old-files:
4945   sed_take_last_column='s,^.*'"$delimiter"',,'
4946   already_present=
4947   LC_ALL=C join -t"$delimiter" -v2 "$tmp"/old-files "$tmp"/new-files \
4948     | sed -e "$sed_take_last_column" \
4949     | sed -e "s,^.*\$,&$delimiter&," -e "$sed_rewrite_new_files" > "$tmp"/added-files
4950   { # Rearrange file descriptors. Needed because "while ... done < ..."
4951     # constructs are executed in a subshell e.g. by Solaris 10 /bin/sh.
4952     exec 5<&0 < "$tmp"/added-files
4953     while read g f; do
4954       func_add_or_update
4955     done
4956     exec 0<&5 5<&-
4957   }
4958   # Then the files that are in new-files and in old-files:
4959   already_present=true
4960   LC_ALL=C join -t"$delimiter" "$tmp"/old-files "$tmp"/new-files \
4961     | sed -e "$sed_take_last_column" \
4962     | sed -e "s,^.*\$,&$delimiter&," -e "$sed_rewrite_new_files" > "$tmp"/kept-files
4963   { # Rearrange file descriptors. Needed because "while ... done < ..."
4964     # constructs are executed in a subshell e.g. by Solaris 10 /bin/sh.
4965     exec 5<&0 < "$tmp"/kept-files
4966     while read g f; do
4967       func_add_or_update
4968     done
4969     exec 0<&5 5<&-
4970   }
4971
4972   # Command-line invocation printed in a comment in generated gnulib-cache.m4.
4973   actioncmd="gnulib-tool --import"
4974
4975   # Local helper.
4976   func_append_local_dir ()
4977   {
4978     func_append "$1" " --local-dir=$2"
4979   }
4980   func_path_foreach "$local_gnulib_path" func_append_local_dir actioncmd %dir%
4981
4982   func_append actioncmd " --lib=$libname"
4983   func_append actioncmd " --source-base=$sourcebase"
4984   func_append actioncmd " --m4-base=$m4base"
4985   if test -n "$pobase"; then
4986     func_append actioncmd " --po-base=$pobase"
4987   fi
4988   func_append actioncmd " --doc-base=$docbase"
4989   func_append actioncmd " --tests-base=$testsbase"
4990   func_append actioncmd " --aux-dir=$auxdir"
4991   if $inctests; then
4992     func_append actioncmd " --with-tests"
4993   fi
4994   if test -n "$incobsolete"; then
4995     func_append actioncmd " --with-obsolete"
4996   fi
4997   if test -n "$inc_cxx_tests"; then
4998     func_append actioncmd " --with-c++-tests"
4999   fi
5000   if test -n "$inc_longrunning_tests"; then
5001     func_append actioncmd " --with-longrunning-tests"
5002   fi
5003   if test -n "$inc_privileged_tests"; then
5004     func_append actioncmd " --with-privileged-tests"
5005   fi
5006   if test -n "$inc_unportable_tests"; then
5007     func_append actioncmd " --with-unportable-tests"
5008   fi
5009   if test -n "$inc_all_tests"; then
5010     func_append actioncmd " --with-all-tests"
5011   fi
5012   for module in $avoidlist; do
5013     func_append actioncmd " --avoid=$module"
5014   done
5015   if test -n "$lgpl"; then
5016     if test "$lgpl" = yes; then
5017       func_append actioncmd " --lgpl"
5018     else
5019       func_append actioncmd " --lgpl=$lgpl"
5020     fi
5021   fi
5022   if test -n "$makefile_name"; then
5023     func_append actioncmd " --makefile-name=$makefile_name"
5024   fi
5025   if test "$cond_dependencies" = true; then
5026     func_append actioncmd " --conditional-dependencies"
5027   else
5028     func_append actioncmd " --no-conditional-dependencies"
5029   fi
5030   if test "$libtool" = true; then
5031     func_append actioncmd " --libtool"
5032   else
5033     func_append actioncmd " --no-libtool"
5034   fi
5035   func_append actioncmd " --macro-prefix=$macro_prefix"
5036   if test -n "$po_domain"; then
5037     func_append actioncmd " --po-domain=$po_domain"
5038   fi
5039   if test -n "$witness_c_macro"; then
5040     func_append actioncmd " --witness-c-macro=$witness_c_macro"
5041   fi
5042   if test -n "$vc_files"; then
5043     if test "$vc_files" = true; then
5044       func_append actioncmd " --vc-files"
5045     else
5046       func_append actioncmd " --no-vc-files"
5047     fi
5048   fi
5049   func_append actioncmd " `echo $specified_modules`"
5050
5051   # Determine include_guard_prefix.
5052   func_compute_include_guard_prefix
5053
5054   # Default the makefile name to Makefile.am.
5055   if test -n "$makefile_name"; then
5056     makefile_am=$makefile_name
5057   else
5058     makefile_am=Makefile.am
5059   fi
5060
5061   # Create normal Makefile.ams.
5062   for_test=false
5063
5064   # Setup list of Makefile.am edits that are to be performed afterwards.
5065   # Some of these edits apply to files that we will generate; others are
5066   # under the responsibility of the developer.
5067   makefile_am_edits=0
5068   # func_note_Makefile_am_edit dir var value
5069   # remembers that ${dir}Makefile.am needs to be edited to that ${var} mentions
5070   # ${value}.
5071   func_note_Makefile_am_edit ()
5072   {
5073     makefile_am_edits=`expr $makefile_am_edits + 1`
5074     eval makefile_am_edit${makefile_am_edits}_dir=\"\$1\"
5075     eval makefile_am_edit${makefile_am_edits}_var=\"\$2\"
5076     eval makefile_am_edit${makefile_am_edits}_val=\"\$3\"
5077   }
5078   if test "$makefile_am" = Makefile.am; then
5079     sourcebase_dir=`echo "$sourcebase" | sed -n -e 's,/[^/]*$,/,p'`
5080     sourcebase_base=`basename "$sourcebase"`
5081     func_note_Makefile_am_edit "$sourcebase_dir" SUBDIRS "$sourcebase_base"
5082   fi
5083   if test -n "$pobase"; then
5084     pobase_dir=`echo "$pobase" | sed -n -e 's,/[^/]*$,/,p'`
5085     pobase_base=`basename "$pobase"`
5086     func_note_Makefile_am_edit "$pobase_dir" SUBDIRS "$pobase_base"
5087   fi
5088   if $inctests; then
5089     if test "$makefile_am" = Makefile.am; then
5090       testsbase_dir=`echo "$testsbase" | sed -n -e 's,/[^/]*$,/,p'`
5091       testsbase_base=`basename "$testsbase"`
5092       func_note_Makefile_am_edit "$testsbase_dir" SUBDIRS "$testsbase_base"
5093     fi
5094   fi
5095   func_note_Makefile_am_edit "" ACLOCAL_AMFLAGS "-I ${m4base}"
5096   {
5097     # Find the first parent directory of $m4base that contains or will contain
5098     # a Makefile.am.
5099     sed_last='s,^.*/\([^/][^/]*\)//*$,\1/,
5100 s,//*$,/,'
5101     sed_butlast='s,[^/][^/]*//*$,,'
5102     dir1="${m4base}/"; dir2=""
5103     while test -n "$dir1" \
5104           && ! { test -f "${destdir}/${dir1}Makefile.am" \
5105                  || test "${dir1}Makefile.am" = "$sourcebase/$makefile_am" \
5106                  || test "./${dir1}Makefile.am" = "$sourcebase/$makefile_am" \
5107                  || { $inctests \
5108                       && { test "${dir1}Makefile.am" = "$testsbase/$makefile_am" \
5109                            || test "./${dir1}Makefile.am" = "$testsbase/$makefile_am"; }; }; }; do
5110       dir2=`echo "$dir1" | sed -e "$sed_last"`"$dir2"
5111       dir1=`echo "$dir1" | sed -e "$sed_butlast"`
5112     done
5113     func_note_Makefile_am_edit "$dir1" EXTRA_DIST "${dir2}gnulib-cache.m4"
5114   }
5115
5116   # Create library makefile.
5117   func_dest_tmpfilename $sourcebase/$makefile_am
5118   destfile="$sourcebase/$makefile_am"
5119   modules="$main_modules"
5120   func_emit_lib_Makefile_am > "$tmpfile"
5121   if test -f "$destdir"/$sourcebase/$makefile_am; then
5122     if cmp -s "$destdir"/$sourcebase/$makefile_am "$tmpfile"; then
5123       rm -f "$tmpfile"
5124     else
5125       if $doit; then
5126         echo "Updating $sourcebase/$makefile_am (backup in $sourcebase/$makefile_am~)"
5127         mv -f "$destdir"/$sourcebase/$makefile_am "$destdir"/$sourcebase/$makefile_am~
5128         mv -f "$tmpfile" "$destdir"/$sourcebase/$makefile_am
5129       else
5130         echo "Update $sourcebase/$makefile_am (backup in $sourcebase/$makefile_am~)"
5131         rm -f "$tmpfile"
5132       fi
5133     fi
5134   else
5135     if $doit; then
5136       echo "Creating $sourcebase/$makefile_am"
5137       mv -f "$tmpfile" "$destdir"/$sourcebase/$makefile_am
5138     else
5139       echo "Create $sourcebase/$makefile_am"
5140       rm -f "$tmpfile"
5141     fi
5142     func_append added_files "$sourcebase/$makefile_am$nl"
5143   fi
5144
5145   # Create po/ directory.
5146   if test -n "$pobase"; then
5147     # Create po makefile and auxiliary files.
5148     for file in Makefile.in.in remove-potcdate.sin; do
5149       func_dest_tmpfilename $pobase/$file
5150       func_lookup_file build-aux/po/$file
5151       cat "$lookedup_file" > "$tmpfile"
5152       if test -f "$destdir"/$pobase/$file; then
5153         if cmp -s "$destdir"/$pobase/$file "$tmpfile"; then
5154           rm -f "$tmpfile"
5155         else
5156           if $doit; then
5157             echo "Updating $pobase/$file (backup in $pobase/$file~)"
5158             mv -f "$destdir"/$pobase/$file "$destdir"/$pobase/$file~
5159             mv -f "$tmpfile" "$destdir"/$pobase/$file
5160           else
5161             echo "Update $pobase/$file (backup in $pobase/$file~)"
5162             rm -f "$tmpfile"
5163           fi
5164         fi
5165       else
5166         if $doit; then
5167           echo "Creating $pobase/$file"
5168           mv -f "$tmpfile" "$destdir"/$pobase/$file
5169         else
5170           echo "Create $pobase/$file"
5171           rm -f "$tmpfile"
5172         fi
5173         func_append added_files "$pobase/$file$nl"
5174       fi
5175     done
5176     # Create po makefile parameterization, part 1.
5177     func_dest_tmpfilename $pobase/Makevars
5178     func_emit_po_Makevars > "$tmpfile"
5179     if test -f "$destdir"/$pobase/Makevars; then
5180       if cmp -s "$destdir"/$pobase/Makevars "$tmpfile"; then
5181         rm -f "$tmpfile"
5182       else
5183         if $doit; then
5184           echo "Updating $pobase/Makevars (backup in $pobase/Makevars~)"
5185           mv -f "$destdir"/$pobase/Makevars "$destdir"/$pobase/Makevars~
5186           mv -f "$tmpfile" "$destdir"/$pobase/Makevars
5187         else
5188           echo "Update $pobase/Makevars (backup in $pobase/Makevars~)"
5189           rm -f "$tmpfile"
5190         fi
5191       fi
5192     else
5193       if $doit; then
5194         echo "Creating $pobase/Makevars"
5195         mv -f "$tmpfile" "$destdir"/$pobase/Makevars
5196       else
5197         echo "Create $pobase/Makevars"
5198         rm -f "$tmpfile"
5199       fi
5200       func_append added_files "$pobase/Makevars$nl"
5201     fi
5202     # Create po makefile parameterization, part 2.
5203     func_dest_tmpfilename $pobase/POTFILES.in
5204     func_emit_po_POTFILES_in > "$tmpfile"
5205     if test -f "$destdir"/$pobase/POTFILES.in; then
5206       if cmp -s "$destdir"/$pobase/POTFILES.in "$tmpfile"; then
5207         rm -f "$tmpfile"
5208       else
5209         if $doit; then
5210           echo "Updating $pobase/POTFILES.in (backup in $pobase/POTFILES.in~)"
5211           mv -f "$destdir"/$pobase/POTFILES.in "$destdir"/$pobase/POTFILES.in~
5212           mv -f "$tmpfile" "$destdir"/$pobase/POTFILES.in
5213         else
5214           echo "Update $pobase/POTFILES.in (backup in $pobase/POTFILES.in~)"
5215           rm -f "$tmpfile"
5216         fi
5217       fi
5218     else
5219       if $doit; then
5220         echo "Creating $pobase/POTFILES.in"
5221         mv -f "$tmpfile" "$destdir"/$pobase/POTFILES.in
5222       else
5223         echo "Create $pobase/POTFILES.in"
5224         rm -f "$tmpfile"
5225       fi
5226       func_append added_files "$pobase/POTFILES.in$nl"
5227     fi
5228     # Fetch PO files.
5229     TP_URL="http://translationproject.org/latest/"
5230     TP_RSYNC_URI="translationproject.org::tp/latest/"
5231     if $doit; then
5232       echo "Fetching gnulib PO files from $TP_URL"
5233       (cd "$destdir"/$pobase \
5234        && { # Prefer rsync over wget if it is available, since it consumes
5235             # less network bandwidth, due to compression.
5236             if type rsync 2>/dev/null | grep / > /dev/null; then
5237               rsync --delete --exclude "*.s1" -Lrtz "${TP_RSYNC_URI}gnulib/" . && return
5238             fi
5239
5240             wget --no-verbose --mirror -nd -np  -A.po -P . "${TP_URL}gnulib/"
5241           }
5242       )
5243     else
5244       echo "Fetch gnulib PO files from $TP_URL"
5245     fi
5246     # Create po/LINGUAS.
5247     if $doit; then
5248       func_dest_tmpfilename $pobase/LINGUAS
5249       (cd "$destdir"/$pobase \
5250        && { echo '# Set of available languages.'
5251             LC_ALL=C ls -1 *.po | sed -e 's,\.po$,,'
5252           }
5253       ) > "$tmpfile"
5254       if test -f "$destdir"/$pobase/LINGUAS; then
5255         if cmp -s "$destdir"/$pobase/LINGUAS "$tmpfile"; then
5256           rm -f "$tmpfile"
5257         else
5258           echo "Updating $pobase/LINGUAS (backup in $pobase/LINGUAS~)"
5259           mv -f "$destdir"/$pobase/LINGUAS "$destdir"/$pobase/LINGUAS~
5260           mv -f "$tmpfile" "$destdir"/$pobase/LINGUAS
5261         fi
5262       else
5263         echo "Creating $pobase/LINGUAS"
5264         mv -f "$tmpfile" "$destdir"/$pobase/LINGUAS
5265         func_append added_files "$pobase/LINGUAS$nl"
5266       fi
5267     else
5268       if test -f "$destdir"/$pobase/LINGUAS; then
5269         echo "Update $pobase/LINGUAS (backup in $pobase/LINGUAS~)"
5270       else
5271         echo "Create $pobase/LINGUAS"
5272       fi
5273     fi
5274   fi
5275
5276   # func_count_relative_local_gnulib_path
5277   # gl_LOCAL_DIR requires local_gnulib_path to be set relatively to destdir
5278   # Input:
5279   # - local_gnulib_path  from --local-dir
5280   # - destdir           from --dir
5281   # Output:
5282   # - relative_local_dir  path to be stored into gl_LOCAL_DIR
5283   func_count_relative_local_gnulib_path ()
5284   {
5285     save_IFS=$IFS
5286     IFS=$PATH_SEPARATOR
5287     relative_local_gnulib_path=
5288     for local_dir in $local_gnulib_path
5289     do
5290       # Store the local_dir relative to destdir.
5291       case "$local_dir" in
5292         "" | /*)
5293           relative_local_dir="$local_dir" ;;
5294         * )
5295           case "$destdir" in
5296             /*) relative_local_dir="$local_dir" ;;
5297             *)
5298               # destdir, local_dir are both relative.
5299               func_relativize "$destdir" "$local_dir"
5300               relative_local_dir="$reldir" ;;
5301           esac ;;
5302       esac
5303       func_path_append relative_local_gnulib_path "$relative_local_dir"
5304     done
5305     IFS=$save_IFS
5306   }
5307
5308   # Create m4/gnulib-cache.m4.
5309   func_dest_tmpfilename $m4base/gnulib-cache.m4
5310   (
5311     func_emit_copyright_notice
5312     echo "#"
5313     echo "# This file represents the specification of how gnulib-tool is used."
5314     echo "# It acts as a cache: It is written and read by gnulib-tool."
5315     echo "# In projects that use version control, this file is meant to be put under"
5316     echo "# version control, like the configure.ac and various Makefile.am files."
5317     echo
5318     echo
5319     echo "# Specification in the form of a command-line invocation:"
5320     echo "#   $actioncmd"
5321     echo
5322     echo "# Specification in the form of a few gnulib-tool.m4 macro invocations:"
5323     func_count_relative_local_gnulib_path
5324     echo "gl_LOCAL_DIR([$relative_local_gnulib_path])"
5325     echo "gl_MODULES(["
5326     echo "$specified_modules" | sed -e 's/^/  /g'
5327     echo "])"
5328     test -z "$incobsolete" || echo "gl_WITH_OBSOLETE"
5329     test -z "$inc_cxx_tests" || echo "gl_WITH_CXX_TESTS"
5330     test -z "$inc_longrunning_tests" || echo "gl_WITH_LONGRUNNING_TESTS"
5331     test -z "$inc_privileged_tests" || echo "gl_WITH_PRIVILEGED_TESTS"
5332     test -z "$inc_unportable_tests" || echo "gl_WITH_UNPORTABLE_TESTS"
5333     test -z "$inc_all_tests" || echo "gl_WITH_ALL_TESTS"
5334     echo "gl_AVOID([$avoidlist])"
5335     echo "gl_SOURCE_BASE([$sourcebase])"
5336     echo "gl_M4_BASE([$m4base])"
5337     echo "gl_PO_BASE([$pobase])"
5338     echo "gl_DOC_BASE([$docbase])"
5339     echo "gl_TESTS_BASE([$testsbase])"
5340     if $inctests; then
5341       echo "gl_WITH_TESTS"
5342     fi
5343     echo "gl_LIB([$libname])"
5344     if test -n "$lgpl"; then
5345       if test "$lgpl" = yes; then
5346         echo "gl_LGPL"
5347       else
5348         echo "gl_LGPL([$lgpl])"
5349       fi
5350     fi
5351     echo "gl_MAKEFILE_NAME([$makefile_name])"
5352     if test "$cond_dependencies" = true; then
5353       echo "gl_CONDITIONAL_DEPENDENCIES"
5354     fi
5355     if test "$libtool" = true; then
5356       echo "gl_LIBTOOL"
5357     fi
5358     echo "gl_MACRO_PREFIX([$macro_prefix])"
5359     echo "gl_PO_DOMAIN([$po_domain])"
5360     echo "gl_WITNESS_C_MACRO([$witness_c_macro])"
5361     if test -n "$vc_files"; then
5362       echo "gl_VC_FILES([$vc_files])"
5363     fi
5364   ) > "$tmpfile"
5365   if test -f "$destdir"/$m4base/gnulib-cache.m4; then
5366     if cmp -s "$destdir"/$m4base/gnulib-cache.m4 "$tmpfile"; then
5367       rm -f "$tmpfile"
5368     else
5369       if $doit; then
5370         echo "Updating $m4base/gnulib-cache.m4 (backup in $m4base/gnulib-cache.m4~)"
5371         mv -f "$destdir"/$m4base/gnulib-cache.m4 "$destdir"/$m4base/gnulib-cache.m4~
5372         mv -f "$tmpfile" "$destdir"/$m4base/gnulib-cache.m4
5373       else
5374         echo "Update $m4base/gnulib-cache.m4 (backup in $m4base/gnulib-cache.m4~)"
5375         if false; then
5376           cat "$tmpfile"
5377           echo
5378           echo "# gnulib-cache.m4 ends here"
5379         fi
5380         rm -f "$tmpfile"
5381       fi
5382     fi
5383   else
5384     if $doit; then
5385       echo "Creating $m4base/gnulib-cache.m4"
5386       mv -f "$tmpfile" "$destdir"/$m4base/gnulib-cache.m4
5387     else
5388       echo "Create $m4base/gnulib-cache.m4"
5389       cat "$tmpfile"
5390       rm -f "$tmpfile"
5391     fi
5392   fi
5393
5394   # Create m4/gnulib-comp.m4.
5395   func_dest_tmpfilename $m4base/gnulib-comp.m4
5396   (
5397     echo "# DO NOT EDIT! GENERATED AUTOMATICALLY!"
5398     func_emit_copyright_notice
5399     echo "#"
5400     echo "# This file represents the compiled summary of the specification in"
5401     echo "# gnulib-cache.m4. It lists the computed macro invocations that need"
5402     echo "# to be invoked from configure.ac."
5403     echo "# In projects that use version control, this file can be treated like"
5404     echo "# other built files."
5405     echo
5406     echo
5407     echo "# This macro should be invoked from $configure_ac, in the section"
5408     echo "# \"Checks for programs\", right after AC_PROG_CC, and certainly before"
5409     echo "# any checks for libraries, header files, types and library functions."
5410     echo "AC_DEFUN([${macro_prefix}_EARLY],"
5411     echo "["
5412     echo "  m4_pattern_forbid([^gl_[A-Z]])dnl the gnulib macro namespace"
5413     echo "  m4_pattern_allow([^gl_ES\$])dnl a valid locale name"
5414     echo "  m4_pattern_allow([^gl_LIBOBJS\$])dnl a variable"
5415     echo "  m4_pattern_allow([^gl_LTLIBOBJS\$])dnl a variable"
5416
5417     func_emit_pre_early_macros : '  ' "$final_modules"
5418
5419     if test -n "$uses_subdirs"; then
5420       echo "  AC_REQUIRE([AM_PROG_CC_C_O])"
5421     fi
5422     for module in $final_modules; do
5423       func_verify_module
5424       if test -n "$module"; then
5425         echo "# Code from module $module:"
5426         func_get_autoconf_early_snippet "$module"
5427       fi
5428     done \
5429       | sed -e '/^$/d;' -e 's/^/  /'
5430     echo "])"
5431     echo
5432     echo "# This macro should be invoked from $configure_ac, in the section"
5433     echo "# \"Check for header files, types and library functions\"."
5434     echo "AC_DEFUN([${macro_prefix}_INIT],"
5435     echo "["
5436     if test "$libtool" = true; then
5437       echo "  AM_CONDITIONAL([GL_COND_LIBTOOL], [true])"
5438       echo "  gl_cond_libtool=true"
5439     else
5440       echo "  AM_CONDITIONAL([GL_COND_LIBTOOL], [false])"
5441       echo "  gl_cond_libtool=false"
5442       echo "  gl_libdeps="
5443       echo "  gl_ltlibdeps="
5444     fi
5445     if test "$auxdir" != "build-aux"; then
5446       sed_replace_build_aux='
5447         :a
5448         /AC_CONFIG_FILES(.*:build-aux\/.*)/{
5449           s|AC_CONFIG_FILES(\(.*\):build-aux/\(.*\))|AC_CONFIG_FILES(\1:'"$auxdir"'/\2)|
5450           ba
5451         }'
5452     else
5453       sed_replace_build_aux="$sed_noop"
5454     fi
5455     echo "  gl_m4_base='$m4base'"
5456     func_emit_initmacro_start $macro_prefix
5457     echo "  gl_source_base='$sourcebase'"
5458     if test -n "$witness_c_macro"; then
5459       echo "  m4_pushdef([gl_MODULE_INDICATOR_CONDITION], [$witness_c_macro])"
5460     fi
5461     func_emit_autoconf_snippets "$main_modules" func_verify_module true false true
5462     if test -n "$witness_c_macro"; then
5463       echo "  m4_popdef([gl_MODULE_INDICATOR_CONDITION])"
5464     fi
5465     echo "  # End of code from modules"
5466     func_emit_initmacro_end $macro_prefix
5467     echo "  gltests_libdeps="
5468     echo "  gltests_ltlibdeps="
5469     func_emit_initmacro_start ${macro_prefix}tests
5470     echo "  gl_source_base='$testsbase'"
5471     # Define a tests witness macro that depends on the package.
5472     # PACKAGE is defined by AM_INIT_AUTOMAKE, PACKAGE_TARNAME is defined by AC_INIT.
5473     # See <http://lists.gnu.org/archive/html/automake/2009-05/msg00145.html>.
5474     echo "changequote(,)dnl"
5475     echo "  ${macro_prefix}tests_WITNESS=IN_\`echo \"\${PACKAGE-\$PACKAGE_TARNAME}\" | LC_ALL=C tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ | LC_ALL=C sed -e 's/[^A-Z0-9_]/_/g'\`_GNULIB_TESTS"
5476     echo "changequote([, ])dnl"
5477     echo "  AC_SUBST([${macro_prefix}tests_WITNESS])"
5478     echo "  gl_module_indicator_condition=\$${macro_prefix}tests_WITNESS"
5479     echo "  m4_pushdef([gl_MODULE_INDICATOR_CONDITION], [\$gl_module_indicator_condition])"
5480     func_emit_autoconf_snippets "$testsrelated_modules" func_verify_module true true true
5481     echo "  m4_popdef([gl_MODULE_INDICATOR_CONDITION])"
5482     func_emit_initmacro_end ${macro_prefix}tests
5483     # _LIBDEPS and _LTLIBDEPS variables are not needed if this library is
5484     # created using libtool, because libtool already handles the dependencies.
5485     if test "$libtool" != true; then
5486       libname_upper=`echo "$libname" | LC_ALL=C tr '[a-z]-' '[A-Z]_'`
5487       echo "  ${libname_upper}_LIBDEPS=\"\$gl_libdeps\""
5488       echo "  AC_SUBST([${libname_upper}_LIBDEPS])"
5489       echo "  ${libname_upper}_LTLIBDEPS=\"\$gl_ltlibdeps\""
5490       echo "  AC_SUBST([${libname_upper}_LTLIBDEPS])"
5491     fi
5492     if $use_libtests; then
5493       echo "  LIBTESTS_LIBDEPS=\"\$gltests_libdeps\""
5494       echo "  AC_SUBST([LIBTESTS_LIBDEPS])"
5495     fi
5496     echo "])"
5497     func_emit_initmacro_done $macro_prefix $sourcebase
5498     func_emit_initmacro_done ${macro_prefix}tests $testsbase
5499     echo
5500     echo "# This macro records the list of files which have been installed by"
5501     echo "# gnulib-tool and may be removed by future gnulib-tool invocations."
5502     echo "AC_DEFUN([${macro_prefix}_FILE_LIST], ["
5503     echo "$files" | sed -e 's,^,  ,'
5504     echo "])"
5505   ) > "$tmpfile"
5506   if test -f "$destdir"/$m4base/gnulib-comp.m4; then
5507     if cmp -s "$destdir"/$m4base/gnulib-comp.m4 "$tmpfile"; then
5508       rm -f "$tmpfile"
5509     else
5510       if $doit; then
5511         echo "Updating $m4base/gnulib-comp.m4 (backup in $m4base/gnulib-comp.m4~)"
5512         mv -f "$destdir"/$m4base/gnulib-comp.m4 "$destdir"/$m4base/gnulib-comp.m4~
5513         mv -f "$tmpfile" "$destdir"/$m4base/gnulib-comp.m4
5514       else
5515         echo "Update $m4base/gnulib-comp.m4 (backup in $m4base/gnulib-comp.m4~)"
5516         if false; then
5517           cat "$tmpfile"
5518           echo
5519           echo "# gnulib-comp.m4 ends here"
5520         fi
5521         rm -f "$tmpfile"
5522       fi
5523     fi
5524   else
5525     if $doit; then
5526       echo "Creating $m4base/gnulib-comp.m4"
5527       mv -f "$tmpfile" "$destdir"/$m4base/gnulib-comp.m4
5528     else
5529       echo "Create $m4base/gnulib-comp.m4"
5530       cat "$tmpfile"
5531       rm -f "$tmpfile"
5532     fi
5533   fi
5534
5535   if $inctests; then
5536     # Create tests makefile.
5537     func_dest_tmpfilename $testsbase/$makefile_am
5538     destfile="$testsbase/$makefile_am"
5539     modules="$testsrelated_modules"
5540     func_emit_tests_Makefile_am "${macro_prefix}tests_WITNESS" > "$tmpfile"
5541     if test -f "$destdir"/$testsbase/$makefile_am; then
5542       if cmp -s "$destdir"/$testsbase/$makefile_am "$tmpfile"; then
5543         rm -f "$tmpfile"
5544       else
5545         if $doit; then
5546           echo "Updating $testsbase/$makefile_am (backup in $testsbase/$makefile_am~)"
5547           mv -f "$destdir"/$testsbase/$makefile_am "$destdir"/$testsbase/$makefile_am~
5548           mv -f "$tmpfile" "$destdir"/$testsbase/$makefile_am
5549         else
5550           echo "Update $testsbase/$makefile_am (backup in $testsbase/$makefile_am~)"
5551           rm -f "$tmpfile"
5552         fi
5553       fi
5554     else
5555       if $doit; then
5556         echo "Creating $testsbase/$makefile_am"
5557         mv -f "$tmpfile" "$destdir"/$testsbase/$makefile_am
5558       else
5559         echo "Create $testsbase/$makefile_am"
5560         rm -f "$tmpfile"
5561       fi
5562       func_append added_files "$testsbase/$makefile_am$nl"
5563     fi
5564   fi
5565
5566   if test "$vc_files" != false; then
5567     # Update the .cvsignore and .gitignore files.
5568     { echo "$added_files" | sed -e '/^$/d' -e 's,\([^/]*\)$,|A|\1,'
5569       echo "$removed_files" | sed -e '/^$/d' -e 's,\([^/]*\)$,|R|\1,'
5570       # Treat gnulib-comp.m4 like an added file, even if it already existed.
5571       echo "$m4base/|A|gnulib-comp.m4"
5572     } | LC_ALL=C sort -t'|' -k1,1 > "$tmp"/fileset-changes
5573     { # Rearrange file descriptors. Needed because "while ... done < ..."
5574       # constructs are executed in a subshell e.g. by Solaris 10 /bin/sh.
5575       exec 5<&0 < "$tmp"/fileset-changes
5576       func_update_ignorelist ()
5577       {
5578         ignore="$1"
5579         if test "$ignore" = .gitignore; then
5580           # In a .gitignore file, "foo" applies to the current directory and all
5581           # subdirectories, whereas "/foo" applies to the current directory only.
5582           anchor='/'
5583           escaped_anchor='\/'
5584           doubly_escaped_anchor='\\/'
5585         else
5586           anchor=''
5587           escaped_anchor=''
5588           doubly_escaped_anchor=''
5589         fi
5590         if test -f "$destdir/$dir$ignore"; then
5591           if test -n "$dir_added" || test -n "$dir_removed"; then
5592             sed -e "s|^$anchor||" < "$destdir/$dir$ignore" | LC_ALL=C sort > "$tmp"/ignore
5593             (echo "$dir_added" | sed -e '/^$/d' | LC_ALL=C sort -u \
5594                | LC_ALL=C join -v 1 - "$tmp"/ignore > "$tmp"/ignore-added
5595              echo "$dir_removed" | sed -e '/^$/d' | LC_ALL=C sort -u \
5596                > "$tmp"/ignore-removed
5597             )
5598             if test -s "$tmp"/ignore-added || test -s "$tmp"/ignore-removed; then
5599               if $doit; then
5600                 echo "Updating $destdir/$dir$ignore (backup in $destdir/$dir${ignore}~)"
5601                 mv -f "$destdir/$dir$ignore" "$destdir/$dir$ignore"~
5602                 { sed -e 's,/,\\/,g' -e 's,^,/^,' -e 's,$,\$/d,' < "$tmp"/ignore-removed
5603                   if test -n "$anchor"; then sed -e 's,/,\\/,g' -e "s,^,/^${doubly_escaped_anchor}," -e 's,$,$/d,' < "$tmp"/ignore-removed; fi
5604                 } > "$tmp"/sed-ignore-removed
5605                 { cat "$destdir/$dir$ignore"~
5606                   sed -e "s|^|$anchor|" < "$tmp"/ignore-added
5607                 } | sed -f "$tmp"/sed-ignore-removed \
5608                   > "$destdir/$dir$ignore"
5609               else
5610                 echo "Update $destdir/$dir$ignore (backup in $destdir/$dir${ignore}~)"
5611               fi
5612             fi
5613           fi
5614         else
5615           if test -n "$dir_added"; then
5616             if $doit; then
5617               echo "Creating $destdir/$dir$ignore"
5618               {
5619                 if test "$ignore" = .cvsignore; then
5620                   echo ".deps"
5621                   # Automake generates Makefile rules that create .dirstamp files.
5622                   echo ".dirstamp"
5623                 fi
5624                 echo "$dir_added" | sed -e '/^$/d' -e "s|^|$anchor|" | LC_ALL=C sort -u
5625               } > "$destdir/$dir$ignore"
5626             else
5627               echo "Create $destdir/$dir$ignore"
5628             fi
5629           fi
5630         fi
5631       }
5632       func_done_dir ()
5633       {
5634         dir="$1"
5635         dir_added="$2"
5636         dir_removed="$3"
5637         if test -d "$destdir/CVS" || test -d "$destdir/${dir}CVS" || test -f "$destdir/${dir}.cvsignore"; then
5638           func_update_ignorelist .cvsignore
5639         fi
5640         if test -d "$destdir/.git" || test -f "$destdir/${dir}.gitignore"; then
5641           func_update_ignorelist .gitignore
5642         fi
5643       }
5644       last_dir=
5645       last_dir_added=
5646       last_dir_removed=
5647       while read line; do
5648         # Why not ''read next_dir op file'' ? Because the dir column can be empty.
5649         next_dir=`echo "$line" | sed -e 's,|.*,,'`
5650         op=`echo "$line" | sed -e 's,^[^|]*|\([^|]*\)|.*$,\1,'`
5651         file=`echo "$line" | sed -e 's,^[^|]*|[^|]*|,,'`
5652         if test "$next_dir" != "$last_dir"; then
5653           func_done_dir "$last_dir" "$last_dir_added" "$last_dir_removed"
5654           last_dir="$next_dir"
5655           last_dir_added=
5656           last_dir_removed=
5657         fi
5658         case $op in
5659           A) func_append last_dir_added "$file$nl";;
5660           R) func_append last_dir_removed "$file$nl";;
5661         esac
5662       done
5663       func_done_dir "$last_dir" "$last_dir_added" "$last_dir_removed"
5664       exec 0<&5 5<&-
5665     }
5666   fi
5667
5668   echo "Finished."
5669   echo
5670   echo "You may need to add #include directives for the following .h files."
5671   # Intersect $specified_modules and $main_modules
5672   # (since $specified_modules is not necessarily of subset of $main_modules
5673   # - some may have been skipped through --avoid, and since the elements of
5674   # $main_modules but not in $specified_modules can go away without explicit
5675   # notice - through changes in the module dependencies).
5676   echo "$specified_modules" > "$tmp"/modules1 # a sorted list, one module per line
5677   echo "$main_modules" > "$tmp"/modules2 # also a sorted list, one module per line
5678   # First the #include <...> directives without #ifs, sorted for convenience,
5679   # then the #include "..." directives without #ifs, sorted for convenience,
5680   # then the #include directives that are surrounded by #ifs. Not sorted.
5681   for module in `LC_ALL=C join "$tmp"/modules1 "$tmp"/modules2`; do
5682     include_directive=`func_get_include_directive "$module"`
5683     case "$nl$include_directive" in
5684       *"$nl#if"*)
5685         echo "$include_directive" 1>&5
5686         ;;
5687       *)
5688         echo "$include_directive" | grep -v 'include "' 1>&6
5689         echo "$include_directive" | grep 'include "' 1>&7
5690         ;;
5691     esac
5692   done 5> "$tmp"/include-if 6> "$tmp"/include-angles 7> "$tmp"/include-quotes
5693   (
5694    LC_ALL=C sort -u "$tmp"/include-angles
5695    LC_ALL=C sort -u "$tmp"/include-quotes
5696    cat "$tmp"/include-if
5697   ) | sed -e '/^$/d' -e 's/^/  /'
5698   rm -f "$tmp"/include-angles "$tmp"/include-quotes "$tmp"/include-if
5699
5700   for module in $main_modules; do
5701     func_get_link_directive "$module"
5702   done \
5703     | LC_ALL=C sort -u | sed -e '/^$/d' -e 's/^/  /' > "$tmp"/link
5704   if test `wc -l < "$tmp"/link` != 0; then
5705     echo
5706     echo "You may need to use the following Makefile variables when linking."
5707     echo "Use them in <program>_LDADD when linking a program, or"
5708     echo "in <library>_a_LDFLAGS or <library>_la_LDFLAGS when linking a library."
5709     cat "$tmp"/link
5710   fi
5711   rm -f "$tmp"/link
5712
5713   echo
5714   echo "Don't forget to"
5715   if test "$makefile_am" = Makefile.am; then
5716     echo "  - add \"$sourcebase/Makefile\" to AC_CONFIG_FILES in $configure_ac,"
5717   else
5718     echo "  - \"include $makefile_name\" from within \"$sourcebase/Makefile.am\","
5719   fi
5720   if test -n "$pobase"; then
5721     echo "  - add \"$pobase/Makefile.in\" to AC_CONFIG_FILES in $configure_ac,"
5722   fi
5723   if $inctests; then
5724     if test "$makefile_am" = Makefile.am; then
5725       echo "  - add \"$testsbase/Makefile\" to AC_CONFIG_FILES in $configure_ac,"
5726     else
5727       echo "  - \"include $makefile_name\" from within \"$testsbase/Makefile.am\","
5728     fi
5729   fi
5730   edit=0
5731   while test $edit != $makefile_am_edits; do
5732     edit=`expr $edit + 1`
5733     eval dir=\"\$makefile_am_edit${edit}_dir\"
5734     eval var=\"\$makefile_am_edit${edit}_var\"
5735     eval val=\"\$makefile_am_edit${edit}_val\"
5736     if test -n "$var"; then
5737       echo "  - mention \"${val}\" in ${var} in ${dir}Makefile.am,"
5738     fi
5739   done
5740   if grep '^ *AC_PROG_CC_STDC' "$configure_ac" > /dev/null; then
5741     position_early_after=AC_PROG_CC_STDC
5742   else
5743     if grep '^ *AC_PROG_CC_C99' "$configure_ac" > /dev/null; then
5744       position_early_after=AC_PROG_CC_C99
5745     else
5746       position_early_after=AC_PROG_CC
5747     fi
5748   fi
5749   echo "  - invoke ${macro_prefix}_EARLY in $configure_ac, right after $position_early_after,"
5750   echo "  - invoke ${macro_prefix}_INIT in $configure_ac."
5751 }
5752
5753 # func_create_testdir testdir modules
5754 # Input:
5755 # - local_gnulib_path  from --local-dir
5756 # - modcache        true or false, from --cache-modules/--no-cache-modules
5757 # - auxdir          directory relative to destdir where to place build aux files
5758 # - inctests        true if tests should be included, false otherwise
5759 # - incobsolete     true if obsolete modules among dependencies should be
5760 #                   included, blank otherwise
5761 # - excl_cxx_tests   true if C++ interoperability tests should be excluded,
5762 #                    blank otherwise
5763 # - excl_longrunning_tests  true if long-runnings tests should be excluded,
5764 #                           blank otherwise
5765 # - excl_privileged_tests  true if tests that require root privileges should be
5766 #                          excluded, blank otherwise
5767 # - excl_unportable_tests  true if tests that fail on some platforms should be
5768 #                          excluded, blank otherwise
5769 # - single_configure  true if a single configure file should be generated,
5770 #                     false for a separate configure file for the tests
5771 # - avoidlist       list of modules to avoid
5772 # - cond_dependencies  true if --conditional-dependencies was given, false if
5773 #                      --no-conditional-dependencies was given, blank otherwise
5774 # - libtool         true if --libtool was given, false if --no-libtool was
5775 #                   given, blank otherwise
5776 # - symbolic        true if files should be symlinked, copied otherwise
5777 # - lsymbolic       true if files from local_gnulib_path should be symlinked,
5778 #                   copied otherwise
5779 func_create_testdir ()
5780 {
5781   testdir="$1"
5782   modules="$2"
5783   if test -z "$modules"; then
5784     # All modules together.
5785     # Except config-h, which breaks all modules which use HAVE_CONFIG_H.
5786     # Except ftruncate, mountlist, which abort the configuration on mingw. FIXME.
5787     # Except lib-ignore, which leads to link errors when Sun C++ is used. FIXME.
5788     modules=`func_all_modules`
5789     modules=`for m in $modules; do case $m in config-h | ftruncate | mountlist | lib-ignore) ;; *) echo $m;; esac; done`
5790   fi
5791   specified_modules="$modules"
5792
5793   # Canonicalize the list of specified modules.
5794   specified_modules=`for m in $specified_modules; do echo $m; done | LC_ALL=C sort -u`
5795
5796   # Unlike in func_import, here we want to include all kinds of tests for the
5797   # directly specified modules, but not for dependencies.
5798   inc_all_direct_tests=true
5799   inc_all_indirect_tests="$inc_all_tests"
5800
5801   # Check that the license of every module is consistent with the license of
5802   # its dependencies.
5803   saved_inctests="$inctests"
5804   # When computing transitive closures, don't consider $module to depend on
5805   # $module-tests. Need this because tests are implicitly GPL and may depend
5806   # on GPL modules - therefore we don't want a warning in this case.
5807   inctests=false
5808   for requested_module in $specified_modules; do
5809     requested_license=`func_get_license "$requested_module"`
5810     if test "$requested_license" != GPL; then
5811       # Here we use func_modules_transitive_closure, not just
5812       # func_get_dependencies, so that we also detect weird situations like
5813       # an LGPL module which depends on a GPLed build tool module which depends
5814       # on a GPL module.
5815       modules="$requested_module"
5816       func_modules_transitive_closure
5817       for module in $modules; do
5818         license=`func_get_license "$module"`
5819         case "$license" in
5820           'GPLed build tool') ;;
5821           'public domain' | 'unlimited' | 'unmodifiable license text') ;;
5822           *)
5823             case "$requested_license" in
5824               GPLv2+)
5825                 case "$license" in
5826                   GPLv2+ | LGPLv2+) ;;
5827                   *) func_warning "module $requested_module depends on a module with an incompatible license: $module" ;;
5828                 esac
5829                 ;;
5830               LGPL)
5831                 case "$license" in
5832                   LGPL | LGPLv2+) ;;
5833                   *) func_warning "module $requested_module depends on a module with an incompatible license: $module" ;;
5834                 esac
5835                 ;;
5836               LGPLv2+)
5837                 case "$license" in
5838                   LGPLv2+) ;;
5839                   *) func_warning "module $requested_module depends on a module with an incompatible license: $module" ;;
5840                 esac
5841                 ;;
5842             esac
5843             ;;
5844         esac
5845       done
5846     fi
5847   done
5848   inctests="$saved_inctests"
5849
5850   # Subdirectory names.
5851   sourcebase=gllib
5852   m4base=glm4
5853   pobase=
5854   docbase=gldoc
5855   testsbase=gltests
5856   macro_prefix=gl
5857   po_domain=
5858   witness_c_macro=
5859   vc_files=
5860
5861   # Determine final module list.
5862   modules="$specified_modules"
5863   func_modules_transitive_closure
5864   if test $verbose -ge 0; then
5865     func_show_module_list
5866   fi
5867   final_modules="$modules"
5868
5869   if $single_configure; then
5870     # Determine main module list and tests-related module list separately.
5871     func_modules_transitive_closure_separately
5872   fi
5873
5874   if $single_configure; then
5875     # Determine whether a $testsbase/libtests.a is needed.
5876     func_determine_use_libtests
5877   fi
5878
5879   # Add the dummy module if needed.
5880   if $single_configure; then
5881     func_modules_add_dummy_separately
5882   else
5883     func_modules_add_dummy
5884   fi
5885
5886   # Show banner notice of every module.
5887   if $single_configure; then
5888     modules="$main_modules"
5889     func_modules_notice
5890   else
5891     func_modules_notice
5892   fi
5893
5894   # Determine final file list.
5895   if $single_configure; then
5896     func_modules_to_filelist_separately
5897   else
5898     func_modules_to_filelist
5899     if test $verbose -ge 0; then
5900       echo "File list:"
5901       echo "$files" | sed -e 's/^/  /'
5902     fi
5903   fi
5904   # Add files for which the copy in gnulib is newer than the one that
5905   # "automake --add-missing --copy" would provide.
5906   files="$files build-aux/config.guess"
5907   files="$files build-aux/config.sub"
5908   files=`for f in $files; do echo $f; done | LC_ALL=C sort -u`
5909
5910   rewritten='%REWRITTEN%'
5911   sed_rewrite_files="\
5912     s,^build-aux/,$rewritten$auxdir/,
5913     s,^doc/,$rewritten$docbase/,
5914     s,^lib/,$rewritten$sourcebase/,
5915     s,^m4/,$rewritten$m4base/,
5916     s,^tests/,$rewritten$testsbase/,
5917     s,^tests=lib/,$rewritten$testsbase/,
5918     s,^top/,$rewritten,
5919     s,^$rewritten,,"
5920
5921   # Create directories.
5922   for f in $files; do echo $f; done \
5923     | sed -e "$sed_rewrite_files" \
5924     | sed -n -e 's,^\(.*\)/[^/]*,\1,p' \
5925     | LC_ALL=C sort -u \
5926     > "$tmp"/dirs
5927   { # Rearrange file descriptors. Needed because "while ... done < ..."
5928     # constructs are executed in a subshell e.g. by Solaris 10 /bin/sh.
5929     exec 5<&0 < "$tmp"/dirs
5930     while read d; do
5931       mkdir -p "$testdir/$d"
5932     done
5933     exec 0<&5 5<&-
5934   }
5935
5936   # Copy files or make symbolic links.
5937   delimiter='   '
5938   for f in $files; do echo $f; done \
5939     | sed -e "s,^.*\$,&$delimiter&," -e "$sed_rewrite_files" \
5940     | LC_ALL=C sort \
5941     > "$tmp"/files
5942   { # Rearrange file descriptors. Needed because "while ... done < ..."
5943     # constructs are executed in a subshell e.g. by Solaris 10 /bin/sh.
5944     exec 5<&0 < "$tmp"/files
5945     while read g f; do
5946       case "$f" in
5947         tests=lib/*) f=`echo "$f" | sed -e 's,^tests=lib/,lib/,'` ;;
5948       esac
5949       func_lookup_file "$f"
5950       if test -n "$lookedup_tmp"; then
5951         cp -p "$lookedup_file" "$testdir/$g"
5952       else
5953         ln "$lookedup_file" "$testdir/$g" 2>/dev/null ||
5954         if func_should_symlink; then
5955           func_ln "$lookedup_file" "$testdir/$g"
5956         else
5957           cp -p "$lookedup_file" "$testdir/$g"
5958         fi
5959       fi
5960     done
5961     exec 0<&5 5<&-
5962   }
5963
5964   # Determine include_guard_prefix.
5965   func_compute_include_guard_prefix
5966
5967   # Create Makefile.ams that are for testing.
5968   for_test=true
5969
5970   # No special edits are needed.
5971   makefile_am_edits=0
5972
5973   # Create $sourcebase/Makefile.am.
5974   mkdir -p "$testdir/$sourcebase"
5975   destfile="$sourcebase/Makefile.am"
5976   if $single_configure; then
5977     modules="$main_modules"
5978   fi
5979   func_emit_lib_Makefile_am > "$testdir/$sourcebase/Makefile.am"
5980   any_uses_subdirs="$uses_subdirs"
5981
5982   # Create $m4base/Makefile.am.
5983   mkdir -p "$testdir/$m4base"
5984   (echo "## Process this file with automake to produce Makefile.in."
5985    echo
5986    echo "EXTRA_DIST ="
5987    for f in $files; do
5988      case "$f" in
5989        m4/* )
5990          echo "EXTRA_DIST += "`echo "$f" | sed -e 's,^m4/,,'` ;;
5991      esac
5992    done
5993   ) > "$testdir/$m4base/Makefile.am"
5994
5995   subdirs="$sourcebase $m4base"
5996   subdirs_with_configure_ac=""
5997
5998   if false && test -f "$testdir"/$m4base/gettext.m4; then
5999     # Avoid stupid error message from automake:
6000     # "AM_GNU_GETTEXT used but `po' not in SUBDIRS"
6001     mkdir -p "$testdir/po"
6002     (echo "## Process this file with automake to produce Makefile.in."
6003     ) > "$testdir/po/Makefile.am"
6004     func_append subdirs " po"
6005   fi
6006
6007   if $inctests; then
6008     test -d "$testdir/$testsbase" || mkdir "$testdir/$testsbase"
6009     if $single_configure; then
6010       # Create $testsbase/Makefile.am.
6011       destfile="$testsbase/Makefile.am"
6012       modules="$testsrelated_modules"
6013       func_emit_tests_Makefile_am "${macro_prefix}tests_WITNESS" > "$testdir/$testsbase/Makefile.am"
6014     else
6015       # Viewed from the $testsbase subdirectory, $auxdir is different.
6016       saved_auxdir="$auxdir"
6017       auxdir=`echo "$testsbase/" | sed -e 's%[^/][^/]*//*%../%g'`"$auxdir"
6018       # Create $testsbase/Makefile.am.
6019       use_libtests=false
6020       destfile="$testsbase/Makefile.am"
6021       func_emit_tests_Makefile_am "" > "$testdir/$testsbase/Makefile.am"
6022       any_uses_subdirs="$any_uses_subdirs$uses_subdirs"
6023       # Create $testsbase/configure.ac.
6024       (echo "# Process this file with autoconf to produce a configure script."
6025        echo "AC_INIT([dummy], [0])"
6026        echo "AC_CONFIG_AUX_DIR([$auxdir])"
6027        echo "AM_INIT_AUTOMAKE"
6028        echo
6029        echo "AC_CONFIG_HEADERS([config.h])"
6030        echo
6031        echo "AC_PROG_CC"
6032        echo "AC_PROG_INSTALL"
6033        echo "AC_PROG_MAKE_SET"
6034
6035        func_emit_pre_early_macros false '' "$modules"
6036
6037        if test -n "$uses_subdirs"; then
6038          echo "AM_PROG_CC_C_O"
6039          echo
6040        fi
6041        for module in $modules; do
6042          func_verify_module
6043          if test -n "$module"; then
6044            case $module in
6045              gnumakefile | maintainer-makefile)
6046                # These modules are meant to be used only in the top-level directory.
6047                ;;
6048              *)
6049                func_get_autoconf_early_snippet "$module"
6050                ;;
6051            esac
6052          fi
6053        done \
6054          | sed -e '/^$/d;' -e 's/AC_REQUIRE(\[\([^()]*\)\])/\1/'
6055        if test "$libtool" = true; then
6056          echo "LT_INIT([win32-dll])"
6057          echo "LT_LANG([C++])"
6058          echo "AM_CONDITIONAL([GL_COND_LIBTOOL], [true])"
6059          echo "gl_cond_libtool=true"
6060        else
6061          echo "AM_CONDITIONAL([GL_COND_LIBTOOL], [false])"
6062          echo "gl_cond_libtool=false"
6063          echo "gl_libdeps="
6064          echo "gl_ltlibdeps="
6065        fi
6066        # Wrap the set of autoconf snippets into an autoconf macro that is then
6067        # invoked. This is needed because autoconf does not support AC_REQUIRE
6068        # at the top level:
6069        #   error: AC_REQUIRE(gt_CSHARPCOMP): cannot be used outside of an AC_DEFUN'd macro
6070        # but we want the AC_REQUIRE to have its normal meaning (provide one
6071        # expansion of the required macro before the current point, and only one
6072        # expansion total).
6073        echo "AC_DEFUN([gl_INIT], ["
6074        sed_replace_build_aux='
6075          :a
6076          /AC_CONFIG_FILES(.*:build-aux\/.*)/{
6077            s|AC_CONFIG_FILES(\(.*\):build-aux/\(.*\))|AC_CONFIG_FILES(\1:'"$auxdir"'/\2)|
6078            ba
6079          }'
6080        echo "gl_m4_base='../$m4base'"
6081        func_emit_initmacro_start $macro_prefix
6082        # We don't have explicit ordering constraints between the various
6083        # autoconf snippets. It's cleanest to put those of the library before
6084        # those of the tests.
6085        echo "gl_source_base='../$sourcebase'"
6086        func_emit_autoconf_snippets "$modules" func_verify_nontests_module false false false
6087        echo "gl_source_base='.'"
6088        func_emit_autoconf_snippets "$modules" func_verify_tests_module false false false
6089        func_emit_initmacro_end $macro_prefix
6090        # _LIBDEPS and _LTLIBDEPS variables are not needed if this library is
6091        # created using libtool, because libtool already handles the dependencies.
6092        if test "$libtool" != true; then
6093          libname_upper=`echo "$libname" | LC_ALL=C tr '[a-z]-' '[A-Z]_'`
6094          echo "  ${libname_upper}_LIBDEPS=\"\$gl_libdeps\""
6095          echo "  AC_SUBST([${libname_upper}_LIBDEPS])"
6096          echo "  ${libname_upper}_LTLIBDEPS=\"\$gl_ltlibdeps\""
6097          echo "  AC_SUBST([${libname_upper}_LTLIBDEPS])"
6098        fi
6099        echo "])"
6100        func_emit_initmacro_done $macro_prefix $sourcebase # FIXME use $sourcebase or $testsbase?
6101        echo
6102        echo "gl_INIT"
6103        echo
6104        # Usually $testsbase/config.h will be a superset of config.h. Verify this
6105        # by "merging" config.h into $testsbase/config.h; look out for gcc warnings.
6106        echo "AH_TOP([#include \"../config.h\"])"
6107        echo
6108        echo "AC_CONFIG_FILES([Makefile])"
6109        echo "AC_OUTPUT"
6110       ) > "$testdir/$testsbase/configure.ac"
6111       auxdir="$saved_auxdir"
6112       subdirs_with_configure_ac="$subdirs_with_configure_ac $testsbase"
6113     fi
6114     func_append subdirs " $testsbase"
6115   fi
6116
6117   # Create Makefile.am.
6118   (echo "## Process this file with automake to produce Makefile.in."
6119    echo
6120    echo "AUTOMAKE_OPTIONS = 1.9.6 foreign"
6121    echo
6122    echo "SUBDIRS = $subdirs"
6123    echo
6124    echo "ACLOCAL_AMFLAGS = -I $m4base"
6125   ) > "$testdir/Makefile.am"
6126
6127   # Create configure.ac.
6128   (echo "# Process this file with autoconf to produce a configure script."
6129    echo "AC_INIT([dummy], [0])"
6130    if test "$auxdir" != "."; then
6131      echo "AC_CONFIG_AUX_DIR([$auxdir])"
6132    fi
6133    echo "AM_INIT_AUTOMAKE"
6134    echo
6135    echo "AC_CONFIG_HEADERS([config.h])"
6136    echo
6137    echo "AC_PROG_CC"
6138    echo "AC_PROG_INSTALL"
6139    echo "AC_PROG_MAKE_SET"
6140    echo
6141    echo "# For autobuild."
6142    echo "AC_CANONICAL_BUILD"
6143    echo "AC_CANONICAL_HOST"
6144    echo
6145    echo "m4_pattern_forbid([^gl_[A-Z]])dnl the gnulib macro namespace"
6146    echo "m4_pattern_allow([^gl_ES\$])dnl a valid locale name"
6147    echo "m4_pattern_allow([^gl_LIBOBJS\$])dnl a variable"
6148    echo "m4_pattern_allow([^gl_LTLIBOBJS\$])dnl a variable"
6149
6150    func_emit_pre_early_macros false '' "$final_modules"
6151
6152    if test -n "$any_uses_subdirs"; then
6153      echo "AM_PROG_CC_C_O"
6154      echo
6155    fi
6156    for module in $final_modules; do
6157      if $single_configure; then
6158        func_verify_module
6159      else
6160        func_verify_nontests_module
6161      fi
6162      if test -n "$module"; then
6163        func_get_autoconf_early_snippet "$module"
6164      fi
6165    done \
6166      | sed -e '/^$/d;' -e 's/AC_REQUIRE(\[\([^()]*\)\])/\1/'
6167    if test "$libtool" = true; then
6168      echo "LT_INIT([win32-dll])"
6169      echo "LT_LANG([C++])"
6170      echo "AM_CONDITIONAL([GL_COND_LIBTOOL], [true])"
6171      echo "gl_cond_libtool=true"
6172    else
6173      echo "AM_CONDITIONAL([GL_COND_LIBTOOL], [false])"
6174      echo "gl_cond_libtool=false"
6175      echo "gl_libdeps="
6176      echo "gl_ltlibdeps="
6177    fi
6178    # Wrap the set of autoconf snippets into an autoconf macro that is then
6179    # invoked. This is needed because autoconf does not support AC_REQUIRE
6180    # at the top level:
6181    #   error: AC_REQUIRE(gt_CSHARPCOMP): cannot be used outside of an AC_DEFUN'd macro
6182    # but we want the AC_REQUIRE to have its normal meaning (provide one
6183    # expansion of the required macro before the current point, and only one
6184    # expansion total).
6185    echo "AC_DEFUN([gl_INIT], ["
6186    if test "$auxdir" != "build-aux"; then
6187      sed_replace_build_aux='
6188        :a
6189        /AC_CONFIG_FILES(.*:build-aux\/.*)/{
6190          s|AC_CONFIG_FILES(\(.*\):build-aux/\(.*\))|AC_CONFIG_FILES(\1:'"$auxdir"'/\2)|
6191          ba
6192        }'
6193    else
6194      sed_replace_build_aux="$sed_noop"
6195    fi
6196    echo "gl_m4_base='$m4base'"
6197    func_emit_initmacro_start $macro_prefix
6198    echo "gl_source_base='$sourcebase'"
6199    if $single_configure; then
6200      func_emit_autoconf_snippets "$main_modules" func_verify_module true false false
6201    else
6202      func_emit_autoconf_snippets "$modules" func_verify_nontests_module true false false
6203    fi
6204    func_emit_initmacro_end $macro_prefix
6205    if $single_configure; then
6206      echo "  gltests_libdeps="
6207      echo "  gltests_ltlibdeps="
6208      func_emit_initmacro_start ${macro_prefix}tests
6209      echo "  gl_source_base='$testsbase'"
6210      # Define a tests witness macro.
6211      echo "  ${macro_prefix}tests_WITNESS=IN_GNULIB_TESTS"
6212      echo "  AC_SUBST([${macro_prefix}tests_WITNESS])"
6213      echo "  gl_module_indicator_condition=\$${macro_prefix}tests_WITNESS"
6214      echo "  m4_pushdef([gl_MODULE_INDICATOR_CONDITION], [\$gl_module_indicator_condition])"
6215      func_emit_autoconf_snippets "$testsrelated_modules" func_verify_module true false false
6216      echo "  m4_popdef([gl_MODULE_INDICATOR_CONDITION])"
6217      func_emit_initmacro_end ${macro_prefix}tests
6218    fi
6219    # _LIBDEPS and _LTLIBDEPS variables are not needed if this library is
6220    # created using libtool, because libtool already handles the dependencies.
6221    if test "$libtool" != true; then
6222      libname_upper=`echo "$libname" | LC_ALL=C tr '[a-z]-' '[A-Z]_'`
6223      echo "  ${libname_upper}_LIBDEPS=\"\$gl_libdeps\""
6224      echo "  AC_SUBST([${libname_upper}_LIBDEPS])"
6225      echo "  ${libname_upper}_LTLIBDEPS=\"\$gl_ltlibdeps\""
6226      echo "  AC_SUBST([${libname_upper}_LTLIBDEPS])"
6227    fi
6228    if $single_configure; then
6229      if $use_libtests; then
6230        echo "  LIBTESTS_LIBDEPS=\"\$gltests_libdeps\""
6231        echo "  AC_SUBST([LIBTESTS_LIBDEPS])"
6232      fi
6233    fi
6234    echo "])"
6235    func_emit_initmacro_done $macro_prefix $sourcebase
6236    if $single_configure; then
6237      func_emit_initmacro_done ${macro_prefix}tests $testsbase
6238    fi
6239    echo
6240    echo "gl_INIT"
6241    echo
6242    if test -n "$subdirs_with_configure_ac"; then
6243      echo "AC_CONFIG_SUBDIRS(["`echo $subdirs_with_configure_ac`"])"
6244    fi
6245    makefiles="Makefile"
6246    for d in $subdirs; do
6247      # For subdirs that have a configure.ac by their own, it's the subdir's
6248      # configure.ac which creates the subdir's Makefile.am, not this one.
6249      case " $subdirs_with_configure_ac " in
6250        *" $d "*) ;;
6251        *) func_append makefiles " $d/Makefile" ;;
6252      esac
6253    done
6254    echo "AC_CONFIG_FILES([$makefiles])"
6255    echo "AC_OUTPUT"
6256   ) > "$testdir/configure.ac"
6257
6258   # Create autogenerated files.
6259   (cd "$testdir"
6260    # Do not use "${AUTORECONF} --force --install", because it may invoke
6261    # autopoint, which brings in older versions of some of our .m4 files.
6262    if test -f $m4base/gettext.m4; then
6263      func_execute_command ${AUTOPOINT} --force || func_exit 1
6264      for f in $m4base/*.m4~; do
6265        if test -f $f; then
6266          mv -f $f `echo $f | sed -e 's,~$,,'` || func_exit 1
6267        fi
6268      done
6269    fi
6270    if test "$libtool" = true; then
6271      func_execute_command ${LIBTOOLIZE} --copy || func_exit 1
6272    fi
6273    func_execute_command ${ACLOCAL} -I $m4base || func_exit 1
6274    if ! test -d build-aux; then
6275      func_execute_command mkdir build-aux || func_exit 1
6276    fi
6277    func_execute_command ${AUTOCONF} || func_exit 1
6278    func_execute_command ${AUTOHEADER} || func_exit 1
6279    func_execute_command ${AUTOMAKE} --add-missing --copy || func_exit 1
6280   ) || func_exit 1
6281   if $inctests && ! $single_configure; then
6282     # Create autogenerated files.
6283     (cd "$testdir/$testsbase" || func_exit 1
6284      # Do not use "${AUTORECONF} --force --install", because it may invoke
6285      # autopoint, which brings in older versions of some of our .m4 files.
6286      if test -f ../$m4base/gettext.m4; then
6287        func_execute_command ${AUTOPOINT} --force || func_exit 1
6288        for f in ../$m4base/*.m4~; do
6289          if test -f $f; then
6290            mv -f $f `echo $f | sed -e 's,~$,,'` || func_exit 1
6291          fi
6292        done
6293      fi
6294      func_execute_command ${ACLOCAL} -I ../$m4base || func_exit 1
6295      if ! test -d ../build-aux; then
6296        func_execute_command mkdir ../build-aux
6297      fi
6298      func_execute_command ${AUTOCONF} || func_exit 1
6299      func_execute_command ${AUTOHEADER} || func_exit 1
6300      func_execute_command ${AUTOMAKE} --add-missing --copy || func_exit 1
6301     ) || func_exit 1
6302   fi
6303   # Need to run configure and make once, to create built files that are to be
6304   # distributed (such as parse-datetime.c).
6305   sed_remove_make_variables='s,[$]([A-Za-z0-9_]*),,g'
6306   # Extract the value of "CLEANFILES += ..." and "MOSTLYCLEANFILES += ...".
6307   cleaned_files=`combine_lines < "$testdir/$sourcebase/Makefile.am" \
6308                  | sed -n -e 's,^CLEANFILES[     ]*+=\([^#]*\).*$,\1,p' -e 's,^MOSTLYCLEANFILES[         ]*+=\([^#]*\).*$,\1,p'`
6309   cleaned_files=`for file in $cleaned_files; do echo " $file "; done`
6310   # Extract the value of "BUILT_SOURCES += ...". Remove variable references
6311   # such $(FOO_H) because they don't refer to distributed files.
6312   built_sources=`combine_lines < "$testdir/$sourcebase/Makefile.am" \
6313                  | sed -n -e 's,^BUILT_SOURCES[  ]*+=\([^#]*\).*$,\1,p' \
6314                  | sed -e "$sed_remove_make_variables"`
6315   distributed_built_sources=`for file in $built_sources; do
6316                                case "$cleaned_files" in
6317                                  *" "$file" "*) ;;
6318                                  *) echo $file ;;
6319                                esac;
6320                              done`
6321   tests_distributed_built_sources=
6322   if $inctests; then
6323     # Likewise for built files in the $testsbase directory.
6324     tests_cleaned_files=`combine_lines < "$testdir/$testsbase/Makefile.am" \
6325                          | sed -n -e 's,^CLEANFILES[     ]*+=\([^#]*\).*$,\1,p' -e 's,^MOSTLYCLEANFILES[         ]*+=\([^#]*\).*$,\1,p'`
6326     tests_cleaned_files=`for file in $tests_cleaned_files; do echo " $file "; done`
6327     tests_built_sources=`combine_lines < "$testdir/$testsbase/Makefile.am" \
6328                          | sed -n -e 's,^BUILT_SOURCES[  ]*+=\([^#]*\).*$,\1,p' \
6329                          | sed -e "$sed_remove_make_variables"`
6330     tests_distributed_built_sources=`for file in $tests_built_sources; do
6331                                        case "$tests_cleaned_files" in
6332                                          *" "$file" "*) ;;
6333                                          *) echo $file ;;
6334                                        esac;
6335                                      done`
6336   fi
6337   if test -n "$distributed_built_sources" || test -n "$tests_distributed_built_sources"; then
6338     (cd "$testdir"
6339      ./configure || func_exit 1
6340        if test -n "$distributed_built_sources"; then
6341          cd "$sourcebase"
6342          echo 'built_sources: $(BUILT_SOURCES)' >> Makefile
6343          $MAKE AUTOCONF="${AUTOCONF}" AUTOHEADER="${AUTOHEADER}" ACLOCAL="${ACLOCAL}" AUTOMAKE="${AUTOMAKE}" AUTORECONF="${AUTORECONF}" AUTOPOINT="${AUTOPOINT}" LIBTOOLIZE="${LIBTOOLIZE}" \
6344                built_sources \
6345            || func_exit 1
6346          cd ..
6347        fi
6348        if test -n "$tests_distributed_built_sources"; then
6349          cd "$testsbase"
6350          echo 'built_sources: $(BUILT_SOURCES)' >> Makefile
6351          $MAKE AUTOCONF="${AUTOCONF}" AUTOHEADER="${AUTOHEADER}" ACLOCAL="${ACLOCAL}" AUTOMAKE="${AUTOMAKE}" AUTORECONF="${AUTORECONF}" AUTOPOINT="${AUTOPOINT}" LIBTOOLIZE="${LIBTOOLIZE}" \
6352                built_sources \
6353            || func_exit 1
6354          cd ..
6355        fi
6356      $MAKE AUTOCONF="${AUTOCONF}" AUTOHEADER="${AUTOHEADER}" ACLOCAL="${ACLOCAL}" AUTOMAKE="${AUTOMAKE}" AUTORECONF="${AUTORECONF}" AUTOPOINT="${AUTOPOINT}" LIBTOOLIZE="${LIBTOOLIZE}" \
6357            distclean \
6358        || func_exit 1
6359     ) || func_exit 1
6360   fi
6361 }
6362
6363 # func_create_megatestdir megatestdir allmodules
6364 # Input:
6365 # - local_gnulib_path  from --local-dir
6366 # - modcache        true or false, from --cache-modules/--no-cache-modules
6367 # - auxdir          directory relative to destdir where to place build aux files
6368 func_create_megatestdir ()
6369 {
6370   megatestdir="$1"
6371   allmodules="$2"
6372   if test -z "$allmodules"; then
6373     allmodules=`func_all_modules`
6374   fi
6375
6376   megasubdirs=
6377   # First, all modules one by one.
6378   for onemodule in $allmodules; do
6379     func_create_testdir "$megatestdir/$onemodule" $onemodule
6380     func_append megasubdirs "$onemodule "
6381   done
6382   # Then, all modules all together.
6383   # Except config-h, which breaks all modules which use HAVE_CONFIG_H.
6384   allmodules=`for m in $allmodules; do if test $m != config-h; then echo $m; fi; done`
6385   func_create_testdir "$megatestdir/ALL" "$allmodules"
6386   func_append megasubdirs "ALL"
6387
6388   # Create autobuild.
6389   cvsdate=`vc_witness="$gnulib_dir/.git/refs/heads/master"; \
6390            sh "$gnulib_dir/build-aux/mdate-sh" "$vc_witness" \
6391              | sed -e 's,January,01,'   -e 's,Jan,01,' \
6392                    -e 's,February,02,'  -e 's,Feb,02,' \
6393                    -e 's,March,03,'     -e 's,Mar,03,' \
6394                    -e 's,April,04,'     -e 's,Apr,04,' \
6395                    -e 's,May,05,'                      \
6396                    -e 's,June,06,'      -e 's,Jun,06,' \
6397                    -e 's,July,07,'      -e 's,Jul,07,' \
6398                    -e 's,August,08,'    -e 's,Aug,08,' \
6399                    -e 's,September,09,' -e 's,Sep,09,' \
6400                    -e 's,October,10,'   -e 's,Oct,10,' \
6401                    -e 's,November,11,'  -e 's,Nov,11,' \
6402                    -e 's,December,12,'  -e 's,Dec,12,' \
6403                    -e 's,^,00,' -e 's,^[0-9]*\([0-9][0-9] \),\1,' \
6404                    -e 's,^\([0-9]*\) \([0-9]*\) \([0-9]*\),\3\2\1,'`
6405   (echo '#!/bin/sh'
6406    echo "CVSDATE=$cvsdate"
6407    echo ": \${MAKE=make}"
6408    echo "test -d logs || mkdir logs"
6409    echo "for module in $megasubdirs; do"
6410    echo "  echo \"Working on module \$module...\""
6411    echo "  safemodule=\`echo \$module | sed -e 's|/|-|g'\`"
6412    echo "  (echo \"To: gnulib@autobuild.josefsson.org\""
6413    echo "   echo"
6414    echo "   set -x"
6415    echo "   : autobuild project... \$module"
6416    echo "   : autobuild revision... cvs-\$CVSDATE-000000"
6417    echo "   : autobuild timestamp... \`date \"+%Y%m%d-%H%M%S\"\`"
6418    echo "   : autobuild hostname... \`hostname\`"
6419    echo "   cd \$module && ./configure \$CONFIGURE_OPTIONS && \$MAKE && \$MAKE check && \$MAKE distclean"
6420    echo "   echo rc=\$?"
6421    echo "  ) 2>&1 | { if test -n \"\$AUTOBUILD_SUBST\"; then sed -e \"\$AUTOBUILD_SUBST\"; else cat; fi; } > logs/\$safemodule"
6422    echo "done"
6423   ) > "$megatestdir/do-autobuild"
6424   chmod a+x "$megatestdir/do-autobuild"
6425
6426   # Create Makefile.am.
6427   (echo "## Process this file with automake to produce Makefile.in."
6428    echo
6429    echo "AUTOMAKE_OPTIONS = 1.9.6 foreign"
6430    echo
6431    echo "SUBDIRS = $megasubdirs"
6432    echo
6433    echo "EXTRA_DIST = do-autobuild"
6434   ) > "$megatestdir/Makefile.am"
6435
6436   # Create configure.ac.
6437   (echo "# Process this file with autoconf to produce a configure script."
6438    echo "AC_INIT([dummy], [0])"
6439    if test "$auxdir" != "."; then
6440      echo "AC_CONFIG_AUX_DIR([$auxdir])"
6441    fi
6442    echo "AM_INIT_AUTOMAKE"
6443    echo
6444    echo "AC_PROG_MAKE_SET"
6445    echo
6446    echo "AC_CONFIG_SUBDIRS([$megasubdirs])"
6447    echo "AC_CONFIG_FILES([Makefile])"
6448    echo "AC_OUTPUT"
6449   ) > "$megatestdir/configure.ac"
6450
6451   # Create autogenerated files.
6452   (cd "$megatestdir"
6453    # Do not use "${AUTORECONF} --install", because autoreconf operates
6454    # recursively, but the subdirectories are already finished, therefore
6455    # calling autoreconf here would only waste lots of CPU time.
6456    func_execute_command ${ACLOCAL} || func_exit 1
6457    func_execute_command mkdir build-aux
6458    func_execute_command ${AUTOCONF} || func_exit 1
6459    func_execute_command ${AUTOMAKE} --add-missing --copy || func_exit 1
6460   ) || func_exit 1
6461 }
6462
6463 case $mode in
6464   "" )
6465     func_fatal_error "no mode specified" ;;
6466
6467   list )
6468     func_all_modules
6469     ;;
6470
6471   find )
6472     # sed expression that converts a literal to a basic regular expression.
6473     # Needs to handle . [ \ * ^ $.
6474     sed_literal_to_basic_regex='s/\\/\\\\/g
6475 s/\[/\\[/g
6476 s/\^/\\^/g
6477 s/\([.*$]\)/[\1]/g'
6478     for filename
6479     do
6480       if test -f "$gnulib_dir/$filename" \
6481          || func_lookup_local_file "$filename"; then
6482         filename_anywhere_regex=`echo "$filename" | sed -e "$sed_literal_to_basic_regex"`
6483         filename_line_regex='^'"$filename_anywhere_regex"'$'
6484         module_candidates=`
6485           {
6486             (cd "$gnulib_dir" && find modules -type f -print | xargs -n 100 grep -l "$filename_line_regex" /dev/null | sed -e 's,^modules/,,')
6487             func_path_foreach "$local_gnulib_path" func_modules_in_dir %dir% | xargs -n 100 grep -l "$filename_anywhere_regex" /dev/null | sed -e 's,^modules/,,' -e 's,\.diff$,,'
6488           } \
6489             | func_sanitize_modulelist \
6490             | LC_ALL=C sort -u
6491           `
6492         for module in $module_candidates; do
6493           if func_get_filelist $module | grep "$filename_line_regex" > /dev/null; then
6494             echo $module
6495           fi
6496         done
6497       else
6498         func_warning "file $filename does not exist"
6499       fi
6500     done
6501     ;;
6502
6503   import | add-import | remove-import | update )
6504
6505     # Where to import.
6506     if test -z "$destdir"; then
6507       destdir=.
6508     fi
6509     test -d "$destdir" \
6510       || func_fatal_error "destination directory does not exist: $destdir"
6511
6512     # Prefer configure.ac to configure.in.
6513     if test -f "$destdir"/configure.ac; then
6514       configure_ac="$destdir/configure.ac"
6515     else
6516       if test -f "$destdir"/configure.in; then
6517         configure_ac="$destdir/configure.in"
6518       else
6519         func_fatal_error "cannot find $destdir/configure.ac - make sure you run gnulib-tool from within your package's directory"
6520       fi
6521     fi
6522
6523     # Analyze configure.ac.
6524     guessed_auxdir="."
6525     guessed_libtool=false
6526     my_sed_traces='
6527       s,#.*$,,
6528       s,^dnl .*$,,
6529       s, dnl .*$,,
6530       /AC_CONFIG_AUX_DIR/ {
6531         s,^.*AC_CONFIG_AUX_DIR([[ ]*\([^]"$`\\)]*\).*$,guessed_auxdir="\1",p
6532       }
6533       /A[CM]_PROG_LIBTOOL/ {
6534         s,^.*$,guessed_libtool=true,p
6535       }'
6536     eval `sed -n -e "$my_sed_traces" < "$configure_ac"`
6537
6538     if test -z "$auxdir"; then
6539       auxdir="$guessed_auxdir"
6540     fi
6541
6542     # Determine where to apply func_import.
6543     if test "$mode" = import; then
6544       # Apply func_import to a particular gnulib directory.
6545       # The command line contains the complete specification; don't look at
6546       # the contents of gnulib-cache.m4.
6547       test -n "$supplied_libname" || supplied_libname=true
6548       test -n "$sourcebase" || sourcebase="lib"
6549       test -n "$m4base" || m4base="m4"
6550       test -n "$docbase" || docbase="doc"
6551       test -n "$testsbase" || testsbase="tests"
6552       test -n "$macro_prefix" || macro_prefix="gl"
6553       func_import "$*"
6554     else
6555       if test -n "$m4base"; then
6556         # Apply func_import to a particular gnulib directory.
6557         # Any number of additional modules can be given.
6558         if test ! -f "$destdir/$m4base"/gnulib-cache.m4; then
6559           # First use of gnulib in the given m4base.
6560           test -n "$supplied_libname" || supplied_libname=true
6561           test -n "$sourcebase" || sourcebase="lib"
6562           test -n "$docbase" || docbase="doc"
6563           test -n "$testsbase" || testsbase="tests"
6564           test -n "$macro_prefix" || macro_prefix="gl"
6565         fi
6566         func_import "$*"
6567       else
6568         # Apply func_import to all gnulib directories.
6569         # To get this list of directories, look at Makefile.am. (Not at
6570         # configure, because it may be omitted from version control. Also,
6571         # don't run "find $destdir -name gnulib-cache.m4", as it might be
6572         # too expensive.)
6573         m4dirs=
6574         m4dirs_count=0
6575         if test -f "$destdir"/Makefile.am; then
6576           aclocal_amflags=`sed -n -e 's/^ACLOCAL_AMFLAGS[        ]*=\(.*\)$/\1/p' "$destdir"/Makefile.am`
6577           m4dir_is_next=
6578           for arg in $aclocal_amflags; do
6579             if test -n "$m4dir_is_next"; then
6580               # Ignore absolute directory pathnames, like /usr/local/share/aclocal.
6581               case "$arg" in
6582                 /*) ;;
6583                 *)
6584                   if test -f "$destdir/$arg"/gnulib-cache.m4; then
6585                     func_append m4dirs " $arg"
6586                     m4dirs_count=`expr $m4dirs_count + 1`
6587                   fi
6588                   ;;
6589               esac
6590               m4dir_is_next=
6591             else
6592               if test "X$arg" = "X-I"; then
6593                 m4dir_is_next=yes
6594               else
6595                 m4dir_is_next=
6596               fi
6597             fi
6598           done
6599         else
6600           # No Makefile.am! Oh well. Look at the last generated aclocal.m4.
6601           if test -f "$destdir"/aclocal.m4; then
6602             sedexpr1='s,^m4_include(\[\(.*\)])$,\1,p'
6603             sedexpr2='s,^[^/]*$,.,'
6604             sedexpr3='s,/[^/]*$,,'
6605             m4dirs=`sed -n -e "$sedexpr1" aclocal.m4 | sed -e "$sedexpr2" -e "$sedexpr3" | LC_ALL=C sort -u`
6606             m4dirs=`for arg in $m4dirs; do if test -f "$destdir/$arg"/gnulib-cache.m4; then echo $arg; fi; done`
6607             m4dirs_count=`for arg in $m4dirs; do echo "$arg"; done | wc -l`
6608           fi
6609         fi
6610         if test $m4dirs_count = 0; then
6611           # First use of gnulib in a package.
6612           # Any number of additional modules can be given.
6613           test -n "$supplied_libname" || supplied_libname=true
6614           test -n "$sourcebase" || sourcebase="lib"
6615           m4base="m4"
6616           test -n "$docbase" || docbase="doc"
6617           test -n "$testsbase" || testsbase="tests"
6618           test -n "$macro_prefix" || macro_prefix="gl"
6619           func_import "$*"
6620         else
6621           if test $m4dirs_count = 1; then
6622             # There's only one use of gnulib here. Assume the user means it.
6623             # Any number of additional modules can be given.
6624             for m4base in $m4dirs; do
6625               func_import "$*"
6626             done
6627           else
6628             # Ambiguous - guess what the user meant.
6629             if test $# = 0; then
6630               # No further arguments. Guess the user wants to update all of them.
6631               for m4base in $m4dirs; do
6632                 # Perform func_import in a subshell, so that variable values
6633                 # such as
6634                 #   local_gnulib_path, incobsolete, inc_cxx_tests,
6635                 #   inc_longrunning_tests, inc_privileged_tests,
6636                 #   inc_unportable_tests, inc_all_tests, avoidlist, sourcebase,
6637                 #   m4base, pobase, docbase, testsbase, inctests, libname, lgpl,
6638                 #   makefile_name, libtool, macro_prefix, po_domain,
6639                 #   witness_c_macro, vc_files
6640                 # don't propagate from one directory to another.
6641                 (func_import) || func_exit 1
6642               done
6643             else
6644               # Really ambiguous.
6645               func_fatal_error "Ambiguity: to which directory should the modules be added? Please specify at least --m4-base=..."
6646             fi
6647           fi
6648         fi
6649       fi
6650     fi
6651     ;;
6652
6653   create-testdir )
6654     if test -z "$destdir"; then
6655       func_fatal_error "please specify --dir option"
6656     fi
6657     mkdir "$destdir"
6658     test -d "$destdir" \
6659       || func_fatal_error "could not create destination directory"
6660     test -n "$auxdir" || auxdir="build-aux"
6661     func_create_testdir "$destdir" "$*"
6662     ;;
6663
6664   create-megatestdir )
6665     if test -z "$destdir"; then
6666       func_fatal_error "please specify --dir option"
6667     fi
6668     mkdir "$destdir" || func_fatal_error "could not create destination directory"
6669     test -n "$auxdir" || auxdir="build-aux"
6670     func_create_megatestdir "$destdir" "$*"
6671     ;;
6672
6673   test )
6674     test -n "$destdir" || destdir=testdir$$
6675     mkdir "$destdir" || func_fatal_error "could not create destination directory"
6676     test -n "$auxdir" || auxdir="build-aux"
6677     func_create_testdir "$destdir" "$*"
6678     cd "$destdir"
6679       mkdir build
6680       cd build
6681         ../configure || func_exit 1
6682         $MAKE || func_exit 1
6683         $MAKE check || func_exit 1
6684         $MAKE distclean || func_exit 1
6685         remaining=`find . -type f -print`
6686         if test -n "$remaining"; then
6687           echo "Remaining files:" $remaining 1>&2
6688           echo "gnulib-tool: *** Stop." 1>&2
6689           func_exit 1
6690         fi
6691       cd ..
6692     cd ..
6693     rm -rf "$destdir"
6694     ;;
6695
6696   megatest )
6697     test -n "$destdir" || destdir=testdir$$
6698     mkdir "$destdir" || func_fatal_error "could not create destination directory"
6699     test -n "$auxdir" || auxdir="build-aux"
6700     func_create_megatestdir "$destdir" "$*"
6701     cd "$destdir"
6702       mkdir build
6703       cd build
6704         ../configure
6705         $MAKE
6706         $MAKE check
6707         $MAKE distclean
6708         remaining=`find . -type f -print`
6709         if test -n "$remaining"; then
6710           echo "Remaining files:" $remaining 1>&2
6711           echo "gnulib-tool: *** Stop." 1>&2
6712           func_exit 1
6713         fi
6714       cd ..
6715     cd ..
6716     rm -rf "$destdir"
6717     ;;
6718
6719   extract-description )
6720     for module
6721     do
6722       func_verify_module
6723       if test -n "$module"; then
6724         func_get_description "$module"
6725       fi
6726     done
6727     ;;
6728
6729   extract-comment )
6730     for module
6731     do
6732       func_verify_module
6733       if test -n "$module"; then
6734         func_get_comment "$module"
6735       fi
6736     done
6737     ;;
6738
6739   extract-status )
6740     for module
6741     do
6742       func_verify_module
6743       if test -n "$module"; then
6744         func_get_status "$module"
6745       fi
6746     done
6747     ;;
6748
6749   extract-notice )
6750     for module
6751     do
6752       func_verify_module
6753       if test -n "$module"; then
6754         func_get_notice "$module"
6755       fi
6756     done
6757     ;;
6758
6759   extract-applicability )
6760     for module
6761     do
6762       func_verify_module
6763       if test -n "$module"; then
6764         func_get_applicability "$module"
6765       fi
6766     done
6767     ;;
6768
6769   extract-filelist )
6770     for module
6771     do
6772       func_verify_module
6773       if test -n "$module"; then
6774         func_get_filelist "$module"
6775       fi
6776     done
6777     ;;
6778
6779   extract-dependencies )
6780     if test -n "$avoidlist"; then
6781       func_fatal_error "cannot combine --avoid and --extract-dependencies"
6782     fi
6783     for module
6784     do
6785       func_verify_module
6786       if test -n "$module"; then
6787         func_get_dependencies "$module"
6788       fi
6789     done
6790     ;;
6791
6792   extract-autoconf-snippet )
6793     for module
6794     do
6795       func_verify_module
6796       if test -n "$module"; then
6797         func_get_autoconf_snippet "$module"
6798       fi
6799     done
6800     ;;
6801
6802   extract-automake-snippet )
6803     for module
6804     do
6805       func_verify_module
6806       if test -n "$module"; then
6807         func_get_automake_snippet "$module"
6808       fi
6809     done
6810     ;;
6811
6812   extract-include-directive )
6813     for module
6814     do
6815       func_verify_module
6816       if test -n "$module"; then
6817         func_get_include_directive "$module"
6818       fi
6819     done
6820     ;;
6821
6822   extract-link-directive )
6823     for module
6824     do
6825       func_verify_module
6826       if test -n "$module"; then
6827         func_get_link_directive "$module"
6828       fi
6829     done
6830     ;;
6831
6832   extract-license )
6833     for module
6834     do
6835       func_verify_module
6836       if test -n "$module"; then
6837         func_get_license "$module"
6838       fi
6839     done
6840     ;;
6841
6842   extract-maintainer )
6843     for module
6844     do
6845       func_verify_module
6846       if test -n "$module"; then
6847         func_get_maintainer "$module"
6848       fi
6849     done
6850     ;;
6851
6852   extract-tests-module )
6853     for module
6854     do
6855       func_verify_module
6856       if test -n "$module"; then
6857         func_get_tests_module "$module"
6858       fi
6859     done
6860     ;;
6861
6862   copy-file )
6863     # Verify the number of arguments.
6864     if test $# -lt 1 || test $# -gt 2; then
6865       func_fatal_error "invalid number of arguments for --$mode"
6866     fi
6867
6868     # The first argument is the file to be copied.
6869     f="$1"
6870     # Verify the file exists.
6871     func_lookup_file "$f"
6872
6873     # The second argument is the destination; either a directory ot a file.
6874     # It defaults to the current directory.
6875     dest="$2"
6876     test -n "$dest" || dest='.'
6877     test -n "$sourcebase" || sourcebase="lib"
6878     test -n "$m4base" || m4base="m4"
6879     test -n "$docbase" || docbase="doc"
6880     test -n "$testsbase" || testsbase="tests"
6881     test -n "$auxdir" || auxdir="build-aux"
6882     rewritten='%REWRITTEN%'
6883     sed_rewrite_files="\
6884       s,^build-aux/,$rewritten$auxdir/,
6885       s,^doc/,$rewritten$docbase/,
6886       s,^lib/,$rewritten$sourcebase/,
6887       s,^m4/,$rewritten$m4base/,
6888       s,^tests/,$rewritten$testsbase/,
6889       s,^top/,$rewritten,
6890       s,^$rewritten,,"
6891     if test -d "$dest"; then
6892       destdir="$dest"
6893       g=`echo "$f" | sed -e "$sed_rewrite_files"`
6894     else
6895       destdir=`dirname "$dest"`
6896       g=`basename "$dest"`
6897     fi
6898
6899     # Create the directory for destfile.
6900     d=`dirname "$destdir/$g"`
6901     if $doit; then
6902       if test -n "$d" && test ! -d "$d"; then
6903         mkdir -p "$d" || func_fatal_error "failed"
6904       fi
6905     fi
6906     # Copy the file.
6907     func_dest_tmpfilename "$g"
6908     cp "$lookedup_file" "$tmpfile" || func_fatal_error "failed"
6909     already_present=true
6910     if test -f "$destdir/$g"; then
6911       # The file already exists.
6912       func_update_file
6913     else
6914       # Install the file.
6915       # Don't protest if the file should be there but isn't: it happens
6916       # frequently that developers don't put autogenerated files under version
6917       # control.
6918       func_add_file
6919     fi
6920     rm -f "$tmpfile"
6921     ;;
6922
6923   * )
6924     func_fatal_error "unknown operation mode --$mode" ;;
6925 esac
6926
6927 rm -rf "$tmp"
6928 # Undo the effect of the previous 'trap' command. Some shellology:
6929 # We cannot use "trap - 0 1 2 3 13 15", because Solaris sh would attempt to
6930 # execute the command "-". "trap '' ..." is fine only for signal 0 (= normal
6931 # exit); for the others we need to call 'exit' explicitly. The value of $? is
6932 # 128 + signal number and is set before the trap-registered command is run.
6933 trap '' 0
6934 trap 'func_exit $?' 1 2 3 13 15
6935
6936 exit 0
6937
6938 # Local Variables:
6939 # indent-tabs-mode: nil
6940 # whitespace-check-buffer-indent: nil
6941 # End: