gnulib-tool

   1 #! /bin/sh
   2 #
   3 # Copyright (C) 2002-2012 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                             (pass --with-tests to include the unit tests)
 168       --create-megatestdir  create a mega scratch package with the given modules
 169                             one by one and all together
 170                             (pass --with-tests to include the unit tests)
 171       --test                test the combination of the given modules
 172                             (pass --with-tests to include the unit tests)
 173                             (recommended to use CC=\"gcc -Wall\" here)
 174       --megatest            test the given modules one by one and all together
 175                             (pass --with-tests to include the unit tests)
 176                             (recommended to use CC=\"gcc -Wall\" here)
 177       --extract-description        extract the description
 178       --extract-comment            extract the comment
 179       --extract-status             extract the status (obsolete etc.)
 180       --extract-notice             extract the notice or banner
 181       --extract-applicability      extract the applicability
 182       --extract-filelist           extract the list of files
 183       --extract-dependencies       extract the dependencies
 184       --extract-autoconf-snippet   extract the snippet for configure.ac
 185       --extract-automake-snippet   extract the snippet for library makefile
 186       --extract-include-directive  extract the #include directive
 187       --extract-link-directive     extract the linker directive
 188       --extract-license            report the license terms of the source files
 189                                    under lib/
 190       --extract-maintainer         report the maintainer(s) inside gnulib
 191       --extract-tests-module       report the unit test module, if it exists
 192       --copy-file                  copy a file that is not part of any module
 193
 194 General options:
 195
 196       --dir=DIRECTORY       Specify the target directory.
 197                             For --import, this specifies where your
 198                             configure.ac can be found.  Defaults to current
 199                             directory.
 200       --local-dir=DIRECTORY  Specify a local override directory where to look
 201                             up files before looking in gnulib's directory.
 202       --cache-modules       Enable module caching optimization.
 203       --no-cache-modules    Disable module caching optimization.
 204       --verbose             Increase verbosity. May be repeated.
 205       --quiet               Decrease verbosity. May be repeated.
 206
 207 Options for --import, --add/remove-import, --update:
 208
 209       --dry-run             Only print what would have been done.
 210
 211 Options for --import, --add/remove-import,
 212             --create-[mega]testdir, --[mega]test:
 213
 214       --with-tests          Include unit tests for the included modules.
 215       --with-obsolete       Include obsolete modules when they occur among the
 216                             dependencies. By default, dependencies to obsolete
 217                             modules are ignored.
 218       --with-c++-tests      Include even unit tests for C++ interoperability.
 219       --with-longrunning-tests
 220                             Include even unit tests that are long-runners.
 221       --with-privileged-tests
 222                             Include even unit tests that require root
 223                             privileges.
 224       --with-unportable-tests
 225                             Include even unit tests that fail on some platforms.
 226       --with-all-tests      Include all kinds of problematic unit tests.
 227       --avoid=MODULE        Avoid including the given MODULE. Useful if you
 228                             have code that provides equivalent functionality.
 229                             This option can be repeated.
 230       --conditional-dependencies
 231                             Support conditional dependencies (may save configure
 232                             time and object code).
 233       --no-conditional-dependencies
 234                             Don't use conditional dependencies.
 235       --libtool             Use libtool rules.
 236       --no-libtool          Don't use libtool rules.
 237
 238 Options for --import, --add/remove-import:
 239
 240       --lib=LIBRARY         Specify the library name.  Defaults to 'libgnu'.
 241       --source-base=DIRECTORY
 242                             Directory relative to --dir where source code is
 243                             placed (default \"lib\").
 244       --m4-base=DIRECTORY   Directory relative to --dir where *.m4 macros are
 245                             placed (default \"m4\").
 246       --po-base=DIRECTORY   Directory relative to --dir where *.po files are
 247                             placed (default \"po\").
 248       --doc-base=DIRECTORY  Directory relative to --dir where doc files are
 249                             placed (default \"doc\").
 250       --tests-base=DIRECTORY
 251                             Directory relative to --dir where unit tests are
 252                             placed (default \"tests\").
 253       --aux-dir=DIRECTORY   Directory relative to --dir where auxiliary build
 254                             tools are placed (default comes from configure.ac).
 255       --lgpl[=2|=3]         Abort if modules aren't available under the LGPL.
 256                             Also modify license template from GPL to LGPL.
 257                             The version number of the LGPL can be specified;
 258                             the default is currently LGPLv3.
 259       --makefile-name=NAME  Name of makefile in automake syntax in the
 260                             source-base and tests-base directories
 261                             (default \"Makefile.am\").
 262       --macro-prefix=PREFIX  Specify the prefix of the macros 'gl_EARLY' and
 263                             'gl_INIT'. Default is 'gl'.
 264       --po-domain=NAME      Specify the prefix of the i18n domain. Usually use
 265                             the package name. A suffix '-gnulib' is appended.
 266       --witness-c-macro=NAME  Specify the C macro that is defined when the
 267                             sources in this directory are compiled or used.
 268       --vc-files            Update version control related files.
 269       --no-vc-files         Don't update version control related files
 270                             (.gitignore and/or .cvsignore).
 271       --no-changelog        Don't update or create ChangeLog files.
 272
 273 Options for --create-[mega]testdir, --[mega]test:
 274
 275       --without-c++-tests   Exclude unit tests for C++ interoperability.
 276       --without-longrunning-tests
 277                             Exclude unit tests that are long-runners.
 278       --without-privileged-tests
 279                             Exclude unit tests that require root privileges.
 280       --without-unportable-tests
 281                             Exclude unit tests that fail on some platforms.
 282       --single-configure    Generate a single configure file, not a separate
 283                             configure file for the tests directory.
 284
 285 Options for --import, --add/remove-import, --update,
 286             --create-[mega]testdir, --[mega]test:
 287
 288   -s, --symbolic, --symlink Make symbolic links instead of copying files.
 289       --local-symlink       Make symbolic links instead of copying files, only
 290                             for files from the local override directory.
 291
 292 Options for --import, --add/remove-import, --update:
 293
 294   -S, --more-symlinks       Make symbolic links instead of copying files, and
 295                             don't replace copyright notices.
 296
 297 Report bugs to <bug-gnulib@gnu.org>."
 298 }
 299
 300 # func_version
 301 # outputs to stdout the --version message.
 302 func_version ()
 303 {
 304   func_gnulib_dir
 305   if test -d "$gnulib_dir"/.git \
 306      && (git --version) >/dev/null 2>/dev/null \
 307      && (date --version) >/dev/null 2>/dev/null; then
 308     # gnulib checked out from git.
 309     sed_extract_first_date='/^Date/{
 310 s/^Date:[        ]*//p
 311 q
 312 }'
 313     date=`cd "$gnulib_dir" && git log ChangeLog | sed -n -e "$sed_extract_first_date"`
 314     # Turn "Fri Mar 21 07:16:51 2008 -0600" into "Mar 21 2008 07:16:51 -0600".
 315     sed_year_before_time='s/^[^ ]* \([^ ]*\) \([0-9]*\) \([0-9:]*\) \([0-9]*\) /\1 \2 \4 \3 /'
 316     date=`echo "$date" | sed -e "$sed_year_before_time"`
 317     # Use GNU date to compute the time in GMT.
 318     date=`date -d "$date" -u +"%Y-%m-%d %H:%M:%S"`
 319     version=' '`cd "$gnulib_dir" && ./build-aux/git-version-gen /dev/null | sed -e 's/-dirty/-modified/'`
 320   else
 321     if test -d "$gnulib_dir"/CVS \
 322        && (cvs --version) >/dev/null 2>/dev/null; then
 323       # gnulib checked out from CVS.
 324       sed_extract_first_date='/^date: /{
 325 s/^date: \([0-9][0-9][0-9][0-9]\).\([0-9][0-9]\).\([0-9][0-9]\) \([0-9][0-9]:[0-9][0-9]:[0-9][0-9]\).*/\1-\2-\3 \4/p
 326 q
 327 }'
 328       date=`cd "$gnulib_dir" && cvs log -N ChangeLog 2>/dev/null | sed -n -e "$sed_extract_first_date"`
 329     else
 330       # gnulib copy without versioning information.
 331       date=`sed -e 's/ .*//;q' "$gnulib_dir"/ChangeLog`
 332     fi
 333     version=
 334   fi
 335   year=`"$gnulib_dir"/build-aux/mdate-sh "$self_abspathname" | sed -e 's,^.* ,,'`
 336   echo "\
 337 gnulib-tool (GNU $package $date)$version
 338 Copyright (C) $year Free Software Foundation, Inc.
 339 License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
 340 This is free software: you are free to change and redistribute it.
 341 There is NO WARRANTY, to the extent permitted by law.
 342
 343 Written by" "Bruno Haible" "and" "Simon Josefsson"
 344 }
 345
 346 # func_emit_copyright_notice
 347 # outputs to stdout a header for a generated file.
 348 func_emit_copyright_notice ()
 349 {
 350   sed -n -e '/Copyright/ {
 351                p
 352                q
 353              }' < "$self_abspathname"
 354   echo "#"
 355   echo "# This file is free software; you can redistribute it and/or modify"
 356   echo "# it under the terms of the GNU General Public License as published by"
 357   echo "# the Free Software Foundation; either version 3 of the License, or"
 358   echo "# (at your option) any later version."
 359   echo "#"
 360   echo "# This file is distributed in the hope that it will be useful,"
 361   echo "# but WITHOUT ANY WARRANTY; without even the implied warranty of"
 362   echo "# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the"
 363   echo "# GNU General Public License for more details."
 364   echo "#"
 365   echo "# You should have received a copy of the GNU General Public License"
 366   echo "# along with this file.  If not, see <http://www.gnu.org/licenses/>."
 367   echo "#"
 368   echo "# As a special exception to the GNU General Public License,"
 369   echo "# this file may be distributed as part of a program that"
 370   echo "# contains a configuration script generated by Autoconf, under"
 371   echo "# the same distribution terms as the rest of that program."
 372   echo "#"
 373   echo "# Generated by gnulib-tool."
 374 }
 375
 376 # func_exit STATUS
 377 # exits with a given status.
 378 # This function needs to be used, rather than 'exit', when a 'trap' handler is
 379 # in effect that refers to $?.
 380 func_exit ()
 381 {
 382   (exit $1); exit $1
 383 }
 384
 385 # func_gnulib_dir
 386 # locates the directory where the gnulib repository lives
 387 # Input:
 388 # - progname                 name of this program
 389 # Sets variables
 390 # - self_abspathname         absolute pathname of gnulib-tool
 391 # - gnulib_dir               absolute pathname of gnulib repository
 392 func_gnulib_dir ()
 393 {
 394   case "$progname" in
 395     /*) self_abspathname="$progname" ;;
 396     */*) self_abspathname=`pwd`/"$progname" ;;
 397     *)
 398       # Look in $PATH.
 399       # Iterate through the elements of $PATH.
 400       # We use IFS=: instead of
 401       #   for d in `echo ":$PATH:" | sed -e 's/:::*/:.:/g' | sed -e 's/:/ /g'`
 402       # because the latter does not work when some PATH element contains spaces.
 403       # We use a canonicalized $pathx instead of $PATH, because empty PATH
 404       # elements are by definition equivalent to '.', however field splitting
 405       # according to IFS=: loses empty fields in many shells:
 406       #   - /bin/sh on OSF/1 and Solaris loses all empty fields (at the
 407       #     beginning, at the end, and in the middle),
 408       #   - /bin/sh on IRIX and /bin/ksh on IRIX and OSF/1 lose empty fields
 409       #     at the beginning and at the end,
 410       #   - GNU bash, /bin/sh on AIX and HP-UX, and /bin/ksh on AIX, HP-UX,
 411       #     Solaris lose empty fields at the end.
 412       # The 'case' statement is an optimization, to avoid evaluating the
 413       # explicit canonicalization command when $PATH contains no empty fields.
 414       self_abspathname=
 415       if test "${PATH_SEPARATOR+set}" != set; then
 416         # Determine PATH_SEPARATOR by trying to find /bin/sh in a PATH which
 417         # contains only /bin. Note that ksh looks also at the FPATH variable,
 418         # so we have to set that as well for the test.
 419         PATH_SEPARATOR=:
 420         (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 \
 421           && { (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 \
 422                  || PATH_SEPARATOR=';'
 423              }
 424       fi
 425       if test "$PATH_SEPARATOR" = ";"; then
 426         # On Windows, programs are searched in "." before $PATH.
 427         pathx=".;$PATH"
 428       else
 429         # On Unix, we have to convert empty PATH elements to ".".
 430         pathx="$PATH"
 431         case :$PATH: in
 432           *::*)
 433             pathx=`echo ":$PATH:" | sed -e 's/:::*/:.:/g' -e 's/^://' -e 's/:\$//'`
 434             ;;
 435         esac
 436       fi
 437       save_IFS="$IFS"
 438       IFS="$PATH_SEPARATOR"
 439       for d in $pathx; do
 440         IFS="$save_IFS"
 441         test -z "$d" && d=.
 442         if test -x "$d/$progname" && test ! -d "$d/$progname"; then
 443           self_abspathname="$d/$progname"
 444           break
 445         fi
 446       done
 447       IFS="$save_IFS"
 448       if test -z "$self_abspathname"; then
 449         func_fatal_error "could not locate the gnulib-tool program - how did you invoke it?"
 450       fi
 451       ;;
 452   esac
 453   while test -h "$self_abspathname"; do
 454     # Resolve symbolic link.
 455     linkval=`func_readlink "$self_abspathname"`
 456     test -n "$linkval" || break
 457     case "$linkval" in
 458       /* ) self_abspathname="$linkval" ;;
 459       * ) self_abspathname=`echo "$self_abspathname" | sed -e 's,/[^/]*$,,'`/"$linkval" ;;
 460     esac
 461   done
 462   gnulib_dir=`echo "$self_abspathname" | sed -e 's,/[^/]*$,,'`
 463 }
 464
 465 # func_tmpdir
 466 # creates a temporary directory.
 467 # Input:
 468 # - progname                 name of this program
 469 # Sets variable
 470 # - tmp             pathname of freshly created temporary directory
 471 func_tmpdir ()
 472 {
 473   # Use the environment variable TMPDIR, falling back to /tmp. This allows
 474   # users to specify a different temporary directory, for example, if their
 475   # /tmp is filled up or too small.
 476   : ${TMPDIR=/tmp}
 477   {
 478     # Use the mktemp program if available. If not available, hide the error
 479     # message.
 480     tmp=`(umask 077 && mktemp -d "$TMPDIR/glXXXXXX") 2>/dev/null` &&
 481     test -n "$tmp" && test -d "$tmp"
 482   } ||
 483   {
 484     # Use a simple mkdir command. It is guaranteed to fail if the directory
 485     # already exists.  $RANDOM is bash specific and expands to empty in shells
 486     # other than bash, ksh and zsh.  Its use does not increase security;
 487     # rather, it minimizes the probability of failure in a very cluttered /tmp
 488     # directory.
 489     tmp=$TMPDIR/gl$$-$RANDOM
 490     (umask 077 && mkdir "$tmp")
 491   } ||
 492   {
 493     echo "$progname: cannot create a temporary directory in $TMPDIR" >&2
 494     func_exit 1
 495   }
 496 }
 497
 498 # func_append var value
 499 # appends the given value to the shell variable var.
 500 if ( foo=bar; foo+=baz && test "$foo" = barbaz ) >/dev/null 2>&1; then
 501   # Use bash's += operator. It reduces complexity of appending repeatedly to
 502   # a single variable from O(n^2) to O(n).
 503   func_append ()
 504   {
 505     eval "$1+=\"\$2\""
 506   }
 507   fast_func_append=true
 508 else
 509   func_append ()
 510   {
 511     eval "$1=\"\$$1\$2\""
 512   }
 513   fast_func_append=false
 514 fi
 515
 516 # func_remove_prefix var prefix
 517 # removes the given prefix from the value of the shell variable var.
 518 # var should be the name of a shell variable.
 519 # Its value should not contain a newline and not start or end with whitespace.
 520 # prefix should not contain the characters "$`\{}[]^|.
 521 if ( foo=bar; eval 'test "${foo#b}" = ar' ) >/dev/null 2>&1; then
 522   func_remove_prefix ()
 523   {
 524     eval "$1=\${$1#\$2}"
 525   }
 526   fast_func_remove_prefix=true
 527 else
 528   func_remove_prefix ()
 529   {
 530     eval "value=\"\$$1\""
 531     prefix="$2"
 532     case "$prefix" in
 533       *.*)
 534         sed_escape_dots='s/\([.]\)/\\\1/g'
 535         prefix=`echo "$prefix" | sed -e "$sed_escape_dots"`
 536         ;;
 537     esac
 538     value=`echo "$value" | sed -e "s|^${prefix}||"`
 539     eval "$1=\"\$value\""
 540   }
 541   fast_func_remove_prefix=false
 542 fi
 543
 544 # func_remove_suffix var suffix
 545 # removes the given suffix from the value of the shell variable var.
 546 # var should be the name of a shell variable.
 547 # Its value should not contain a newline and not start or end with whitespace.
 548 # suffix should not contain the characters "$`\{}[]^|.
 549 if ( foo=bar; eval 'test "${foo%r}" = ba' ) >/dev/null 2>&1; then
 550   func_remove_suffix ()
 551   {
 552     eval "$1=\${$1%\$2}"
 553   }
 554   fast_func_remove_suffix=true
 555 else
 556   func_remove_suffix ()
 557   {
 558     eval "value=\"\$$1\""
 559     suffix="$2"
 560     case "$suffix" in
 561       *.*)
 562         sed_escape_dots='s/\([.]\)/\\\1/g'
 563         suffix=`echo "$suffix" | sed -e "$sed_escape_dots"`
 564         ;;
 565     esac
 566     value=`echo "$value" | sed -e "s|${suffix}\$||"`
 567     eval "$1=\"\$value\""
 568   }
 569   fast_func_remove_suffix=false
 570 fi
 571
 572 # func_fatal_error message
 573 # outputs to stderr a fatal error message, and terminates the program.
 574 # Input:
 575 # - progname                 name of this program
 576 func_fatal_error ()
 577 {
 578   echo "$progname: *** $1" 1>&2
 579   echo "$progname: *** Stop." 1>&2
 580   func_exit 1
 581 }
 582
 583 # func_warning message
 584 # Outputs to stderr a warning message,
 585 func_warning ()
 586 {
 587   echo "gnulib-tool: warning: $1" 1>&2
 588 }
 589
 590 # func_readlink SYMLINK
 591 # outputs the target of the given symlink.
 592 if (type -p readlink) > /dev/null 2>&1; then
 593   func_readlink ()
 594   {
 595     # Use the readlink program from GNU coreutils.
 596     readlink "$1"
 597   }
 598 else
 599   func_readlink ()
 600   {
 601     # Use two sed invocations. A single sed -n -e 's,^.* -> \(.*\)$,\1,p'
 602     # would do the wrong thing if the link target contains " -> ".
 603     LC_ALL=C ls -l "$1" | sed -e 's, -> ,#%%#,' | sed -n -e 's,^.*#%%#\(.*\)$,\1,p'
 604   }
 605 fi
 606
 607 # func_relativize DIR1 DIR2
 608 # computes a relative pathname RELDIR such that DIR1/RELDIR = DIR2.
 609 # Input:
 610 # - DIR1            relative pathname, relative to the current directory
 611 # - DIR2            relative pathname, relative to the current directory
 612 # Output:
 613 # - reldir          relative pathname of DIR2, relative to DIR1
 614 func_relativize ()
 615 {
 616   dir0=`pwd`
 617   dir1="$1"
 618   dir2="$2"
 619   sed_first='s,^\([^/]*\)/.*$,\1,'
 620   sed_rest='s,^[^/]*/*,,'
 621   sed_last='s,^.*/\([^/]*\)$,\1,'
 622   sed_butlast='s,/*[^/]*$,,'
 623   while test -n "$dir1"; do
 624     first=`echo "$dir1" | sed -e "$sed_first"`
 625     if test "$first" != "."; then
 626       if test "$first" = ".."; then
 627         dir2=`echo "$dir0" | sed -e "$sed_last"`/"$dir2"
 628         dir0=`echo "$dir0" | sed -e "$sed_butlast"`
 629       else
 630         first2=`echo "$dir2" | sed -e "$sed_first"`
 631         if test "$first2" = "$first"; then
 632           dir2=`echo "$dir2" | sed -e "$sed_rest"`
 633         else
 634           dir2="../$dir2"
 635         fi
 636         dir0="$dir0"/"$first"
 637       fi
 638     fi
 639     dir1=`echo "$dir1" | sed -e "$sed_rest"`
 640   done
 641   reldir="$dir2"
 642 }
 643
 644 # func_relconcat DIR1 DIR2
 645 # computes a relative pathname DIR1/DIR2, with obvious simplifications.
 646 # Input:
 647 # - DIR1            relative pathname, relative to the current directory
 648 # - DIR2            relative pathname, relative to DIR1
 649 # Output:
 650 # - relconcat       DIR1/DIR2, relative to the current directory
 651 func_relconcat ()
 652 {
 653   dir1="$1"
 654   dir2="$2"
 655   sed_first='s,^\([^/]*\)/.*$,\1,'
 656   sed_rest='s,^[^/]*/*,,'
 657   sed_last='s,^.*/\([^/]*\)$,\1,'
 658   sed_butlast='s,/*[^/]*$,,'
 659   while true; do
 660     first=`echo "$dir2" | sed -e "$sed_first"`
 661     if test "$first" = "."; then
 662       dir2=`echo "$dir2" | sed -e "$sed_rest"`
 663       if test -z "$dir2"; then
 664         relconcat="$dir1"
 665         break
 666       fi
 667     else
 668       last=`echo "$dir1" | sed -e "$sed_last"`
 669       while test "$last" = "."; do
 670         dir1=`echo "$dir1" | sed -e "$sed_butlast"`
 671         last=`echo "$dir1" | sed -e "$sed_last"`
 672       done
 673       if test -z "$dir1"; then
 674         relconcat="$dir2"
 675         break
 676       fi
 677       if test "$first" = ".."; then
 678         if test "$last" = ".."; then
 679           relconcat="$dir1/$dir2"
 680           break
 681         fi
 682         dir1=`echo "$dir1" | sed -e "$sed_butlast"`
 683         dir2=`echo "$dir2" | sed -e "$sed_rest"`
 684         if test -z "$dir1"; then
 685           relconcat="$dir2"
 686           break
 687         fi
 688         if test -z "$dir2"; then
 689           relconcat="$dir1"
 690           break
 691         fi
 692       else
 693         relconcat="$dir1/$dir2"
 694         break
 695       fi
 696     fi
 697   done
 698 }
 699
 700 # func_ln SRC DEST
 701 # Like ln -s, except that SRC is given relative to the current directory (or
 702 # absolute), not given relative to the directory of DEST.
 703 func_ln ()
 704 {
 705   case "$1" in
 706     /*)
 707       ln -s "$1" "$2" ;;
 708     *) # SRC is relative.
 709       case "$2" in
 710         /*)
 711           ln -s "`pwd`/$1" "$2" ;;
 712         *) # DEST is relative too.
 713           ln_destdir=`echo "$2" | sed -e 's,[^/]*$,,'`
 714           test -n "$ln_destdir" || ln_destdir="."
 715           func_relativize "$ln_destdir" "$1"
 716           ln -s "$reldir" "$2"
 717           ;;
 718       esac
 719       ;;
 720   esac
 721 }
 722
 723 # func_ln_if_changed SRC DEST
 724 # Like func_ln, but avoids munging timestamps if the link is correct.
 725 func_ln_if_changed ()
 726 {
 727   if test $# -ne 2; then
 728     echo "usage: func_ln_if_changed SRC DEST" >&2
 729   fi
 730   ln_target=`func_readlink "$2"`
 731   if test -h "$2" && test "$1" = "$ln_target"; then
 732     :
 733   else
 734     rm -f "$2"
 735     func_ln "$1" "$2"
 736   fi
 737 }
 738
 739 # Ensure an 'echo' command that
 740 #   1. does not interpret backslashes and
 741 #   2. does not print an error message "broken pipe" when writing into a pipe
 742 #      with no writers.
 743 #
 744 # Test cases for problem 1:
 745 #   echo '\n' | wc -l                 prints 1 when OK, 2 when KO
 746 #   echo '\t' | grep t > /dev/null    has return code 0 when OK, 1 when KO
 747 # Test cases for problem 2:
 748 #   echo hi | true                    frequently prints
 749 #                                     "bash: echo: write error: Broken pipe"
 750 #                                     to standard error in bash 3.2.
 751 #
 752 # Problem 1 is a weird heritage from SVR4. BSD got it right (except that
 753 # BSD echo interprets '-n' as an option, which is also not desirable).
 754 # Nowadays the problem occurs in 4 situations:
 755 # - in bash, when the shell option xpg_echo is set (bash >= 2.04)
 756 #            or when it was built with --enable-usg-echo-default (bash >= 2.0)
 757 #            or when it was built with DEFAULT_ECHO_TO_USG (bash < 2.0),
 758 # - in zsh, when sh-emulation is not set,
 759 # - in ksh (e.g. AIX /bin/sh and Solaris /usr/xpg4/bin/sh are ksh instances,
 760 #           and HP-UX /bin/sh and IRIX /bin/sh behave similarly),
 761 # - in Solaris /bin/sh and OSF/1 /bin/sh.
 762 # We try the following workarounds:
 763 # - for all: respawn using $CONFIG_SHELL if that is set and works.
 764 # - for bash >= 2.04: unset the shell option xpg_echo.
 765 # - for bash >= 2.0: define echo to a function that uses the printf built-in.
 766 # - for bash < 2.0: define echo to a function that uses cat of a here document.
 767 # - for zsh: turn sh-emulation on.
 768 # - for ksh: alias echo to 'print -r'.
 769 # - for ksh: alias echo to a function that uses cat of a here document.
 770 # - for Solaris /bin/sh and OSF/1 /bin/sh: respawn using /bin/ksh and rely on
 771 #   the ksh workaround.
 772 # - otherwise: respawn using /bin/sh and rely on the workarounds.
 773 # When respawning, we pass --no-reexec as first argument, so as to avoid
 774 # turning this script into a fork bomb in unlucky situations.
 775 #
 776 # Problem 2 is specific to bash 3.2 and affects the 'echo' built-in, but not
 777 # the 'printf' built-in. See
 778 #   <http://lists.gnu.org/archive/html/bug-bash/2008-12/msg00050.html>
 779 #   <http://lists.gnu.org/archive/html/bug-gnulib/2010-02/msg00154.html>
 780 # The workaround is: define echo to a function that uses the printf built-in.
 781 have_echo=
 782 if echo '\t' | grep t > /dev/null; then
 783   have_echo=yes # Lucky!
 784 fi
 785 # Try the workarounds.
 786 # Respawn using $CONFIG_SHELL if that is set and works.
 787 if test -z "$have_echo" \
 788    && test "X$1" != "X--no-reexec" \
 789    && test -n "$CONFIG_SHELL" \
 790    && test -f "$CONFIG_SHELL" \
 791    && $CONFIG_SHELL -c "echo '\\t' | grep t > /dev/null"; then
 792   exec $CONFIG_SHELL "$0" --no-reexec "$@"
 793   exit 127
 794 fi
 795 # For bash >= 2.04: unset the shell option xpg_echo.
 796 if test -z "$have_echo" \
 797    && test -n "$BASH_VERSION" \
 798    && (shopt -o xpg_echo; echo '\t' | grep t > /dev/null) 2>/dev/null; then
 799   shopt -o xpg_echo
 800   have_echo=yes
 801 fi
 802 # For bash >= 2.0: define echo to a function that uses the printf built-in.
 803 # For bash < 2.0: define echo to a function that uses cat of a here document.
 804 # (There is no win in using 'printf' over 'cat' if it is not a shell built-in.)
 805 # Also handle problem 2, specific to bash 3.2, here.
 806 if { test -z "$have_echo" \
 807      || case "$BASH_VERSION" in 3.2*) true;; *) false;; esac; \
 808    } \
 809    && test -n "$BASH_VERSION"; then \
 810   if type printf 2>/dev/null | grep / > /dev/null; then
 811     # 'printf' is not a shell built-in.
 812 echo ()
 813 {
 814 cat <<EOF
 815 $*
 816 EOF
 817 }
 818   else
 819     # 'printf' is a shell built-in.
 820 echo ()
 821 {
 822   printf '%s\n' "$*"
 823 }
 824   fi
 825   if echo '\t' | grep t > /dev/null; then
 826     have_echo=yes
 827   fi
 828 fi
 829 # For zsh: turn sh-emulation on.
 830 if test -z "$have_echo" \
 831    && test -n "$ZSH_VERSION" \
 832    && (emulate sh) >/dev/null 2>&1; then
 833   emulate sh
 834 fi
 835 # For ksh: alias echo to 'print -r'.
 836 if test -z "$have_echo" \
 837    && (type print) >/dev/null 2>&1; then
 838   # A 'print' command exists.
 839   if type print 2>/dev/null | grep / > /dev/null; then
 840     :
 841   else
 842     # 'print' is a shell built-in.
 843     if (print -r '\told' | grep told > /dev/null) 2>/dev/null; then
 844       # 'print' is the ksh shell built-in.
 845       alias echo='print -r'
 846     fi
 847   fi
 848 fi
 849 if test -z "$have_echo" \
 850    && echo '\t' | grep t > /dev/null; then
 851   have_echo=yes
 852 fi
 853 # For ksh: alias echo to a function that uses cat of a here document.
 854 # The ksh manual page says:
 855 #   "Aliasing is performed when scripts are read, not while they are executed.
 856 #    Therefore, for an alias to take effect, the alias definition command has
 857 #    to be executed before the command which references the alias is read."
 858 # Because of this, we have to play strange tricks with have_echo, to ensure
 859 # that the top-level statement containing the test starts after the 'alias'
 860 # command.
 861 if test -z "$have_echo"; then
 862   bsd_echo ()
 863 {
 864 cat <<EOF
 865 $*
 866 EOF
 867 }
 868   if (alias echo=bsd_echo) 2>/dev/null; then
 869     alias echo=bsd_echo 2>/dev/null
 870   fi
 871 fi
 872 if test -z "$have_echo" \
 873    && echo '\t' | grep t > /dev/null; then
 874   have_echo=yes
 875 fi
 876 if test -z "$have_echo"; then
 877   if (alias echo=bsd_echo) 2>/dev/null; then
 878     unalias echo 2>/dev/null
 879   fi
 880 fi
 881 # For Solaris /bin/sh and OSF/1 /bin/sh: respawn using /bin/ksh.
 882 if test -z "$have_echo" \
 883    && test "X$1" != "X--no-reexec" \
 884    && test -f /bin/ksh; then
 885   exec /bin/ksh "$0" --no-reexec "$@"
 886   exit 127
 887 fi
 888 # Otherwise: respawn using /bin/sh.
 889 if test -z "$have_echo" \
 890    && test "X$1" != "X--no-reexec" \
 891    && test -f /bin/sh; then
 892   exec /bin/sh "$0" --no-reexec "$@"
 893   exit 127
 894 fi
 895 if test -z "$have_echo"; then
 896   func_fatal_error "Shell does not support 'echo' correctly. Please install GNU bash and set the environment variable CONFIG_SHELL to point to it."
 897 fi
 898 if echo '\t' | grep t > /dev/null; then
 899   : # Works fine now.
 900 else
 901   func_fatal_error "Shell does not support 'echo' correctly. Workaround does not work. Please report this as a bug to bug-gnulib@gnu.org."
 902 fi
 903 if test "X$1" = "X--no-reexec"; then
 904   shift
 905 fi
 906
 907 # Command-line option processing.
 908 # Removes the OPTIONS from the arguments. Sets the variables:
 909 # - mode            list or import or add-import or remove-import or update
 910 #                   or create-testdir or create-megatestdir
 911 # - destdir         from --dir
 912 # - local_gnulib_dir  from --local-dir
 913 # - modcache        true or false, from --cache-modules/--no-cache-modules
 914 # - verbose         integer, default 0, inc/decremented by --verbose/--quiet
 915 # - libname, supplied_libname  from --lib
 916 # - sourcebase      from --source-base
 917 # - m4base          from --m4-base
 918 # - pobase          from --po-base
 919 # - docbase         from --doc-base
 920 # - testsbase       from --tests-base
 921 # - auxdir          from --aux-dir
 922 # - inctests        true if --with-tests was given, blank otherwise
 923 # - incobsolete     true if --with-obsolete was given, blank otherwise
 924 # - inc_cxx_tests   true if --with-c++-tests was given, blank otherwise
 925 # - inc_longrunning_tests  true if --with-longrunning-tests was given, blank
 926 #                          otherwise
 927 # - inc_privileged_tests  true if --with-privileged-tests was given, blank
 928 #                         otherwise
 929 # - inc_unportable_tests  true if --with-unportable-tests was given, blank
 930 #                         otherwise
 931 # - inc_all_tests   true if --with-all-tests was given, blank otherwise
 932 # - excl_cxx_tests  true if --without-c++-tests was given, blank otherwise
 933 # - excl_longrunning_tests  true if --without-longrunning-tests was given,
 934 #                           blank otherwise
 935 # - excl_privileged_tests  true if --without-privileged-tests was given, blank
 936 #                          otherwise
 937 # - excl_unportable_tests  true if --without-unportable-tests was given, blank
 938 #                          otherwise
 939 # - single_configure  true if --single-configure was given, false otherwise
 940 # - avoidlist       list of modules to avoid, from --avoid
 941 # - cond_dependencies  true if --conditional-dependencies was given, false if
 942 #                      --no-conditional-dependencies was given, blank otherwise
 943 # - lgpl            yes or a number if --lgpl was given, blank otherwise
 944 # - makefile_name   from --makefile-name
 945 # - libtool         true if --libtool was given, false if --no-libtool was
 946 #                   given, blank otherwise
 947 # - macro_prefix    from --macro-prefix
 948 # - po_domain       from --po-domain
 949 # - witness_c_macro  from --witness-c-macro
 950 # - vc_files        true if --vc-files was given, false if --no-vc-files was
 951 #                   given, blank otherwise
 952 # - autoconf_minversion  minimum supported autoconf version
 953 # - do_changelog    false if --no-changelog was given, : otherwise
 954 # - doit            : if actions shall be executed, false if only to be printed
 955 # - symbolic        true if --symlink or --more-symlinks was given, blank
 956 #                   otherwise
 957 # - lsymbolic       true if --local-symlink was given, blank otherwise
 958 # - do_copyrights   blank if --more-symlinks was given, true otherwise
 959 {
 960   mode=
 961   destdir=
 962   local_gnulib_dir=
 963   modcache=true
 964   verbose=0
 965   libname=libgnu
 966   supplied_libname=
 967   sourcebase=
 968   m4base=
 969   pobase=
 970   docbase=
 971   testsbase=
 972   auxdir=
 973   inctests=
 974   incobsolete=
 975   inc_cxx_tests=
 976   inc_longrunning_tests=
 977   inc_privileged_tests=
 978   inc_unportable_tests=
 979   inc_all_tests=
 980   excl_cxx_tests=
 981   excl_longrunning_tests=
 982   excl_privileged_tests=
 983   excl_unportable_tests=
 984   single_configure=false
 985   avoidlist=
 986   cond_dependencies=
 987   lgpl=
 988   makefile_name=
 989   libtool=
 990   macro_prefix=
 991   po_domain=
 992   witness_c_macro=
 993   vc_files=
 994   do_changelog=:
 995   doit=:
 996   symbolic=
 997   lsymbolic=
 998   do_copyrights=true
 999
1000   supplied_opts="$@"
1001
1002   while test $# -gt 0; do
1003     case "$1" in
1004       --list | --lis )
1005         mode=list
1006         shift ;;
1007       --find | --fin | --fi | --f )
1008         mode=find
1009         shift ;;
1010       --import | --impor | --impo | --imp | --im | --i )
1011         mode=import
1012         shift ;;
1013       --add-import | --add-impor | --add-impo | --add-imp | --add-im | --add-i | --add- | --add | --ad )
1014         mode=add-import
1015         shift ;;
1016       --remove-import | --remove-impor | --remove-impo | --remove-imp | --remove-im | --remove-i | --remove- | --remove | --remov | --remo | --rem | --re | --r )
1017         mode=remove-import
1018         shift ;;
1019       --update | --updat | --upda | --upd | --up | --u )
1020         mode=update
1021         shift ;;
1022       --create-testdir | --create-testdi | --create-testd | --create-test | --create-tes | --create-te | --create-t )
1023         mode=create-testdir
1024         shift ;;
1025       --create-megatestdir | --create-megatestdi | --create-megatestd | --create-megatest | --create-megates | --create-megate | --create-megat | --create-mega | --create-meg | --create-me | --create-m )
1026         mode=create-megatestdir
1027         shift ;;
1028       --test | --tes | --te | --t )
1029         mode=test
1030         shift ;;
1031       --megatest | --megates | --megate | --megat | --mega | --meg | --me | --m )
1032         mode=megatest
1033         shift ;;
1034       --extract-* )
1035         mode=`echo "X$1" | sed -e 's/^X--//'`
1036         shift ;;
1037       --copy-file | --copy-fil | --copy-fi | --copy-f | --copy- | --copy | --cop )
1038         mode=copy-file
1039         shift ;;
1040       --dir )
1041         shift
1042         if test $# = 0; then
1043           func_fatal_error "missing argument for --dir"
1044         fi
1045         destdir=$1
1046         shift ;;
1047       --dir=* )
1048         destdir=`echo "X$1" | sed -e 's/^X--dir=//'`
1049         shift ;;
1050       --local-dir )
1051         shift
1052         if test $# = 0; then
1053           func_fatal_error "missing argument for --local-dir"
1054         fi
1055         local_gnulib_dir=$1
1056         shift ;;
1057       --local-dir=* )
1058         local_gnulib_dir=`echo "X$1" | sed -e 's/^X--local-dir=//'`
1059         shift ;;
1060       --cache-modules | --cache-module | --cache-modul | --cache-modu | --cache-mod | --cache-mo | --cache-m | --cache- | --cache | --cach | --cac | --ca )
1061         modcache=true
1062         shift ;;
1063       --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 )
1064         modcache=false
1065         shift ;;
1066       --verbose | --verbos | --verbo | --verb )
1067         verbose=`expr $verbose + 1`
1068         shift ;;
1069       --quiet | --quie | --qui | --qu | --q )
1070         verbose=`expr $verbose - 1`
1071         shift ;;
1072       --lib )
1073         shift
1074         if test $# = 0; then
1075           func_fatal_error "missing argument for --lib"
1076         fi
1077         libname=$1
1078         supplied_libname=true
1079         shift ;;
1080       --lib=* )
1081         libname=`echo "X$1" | sed -e 's/^X--lib=//'`
1082         supplied_libname=true
1083         shift ;;
1084       --source-base )
1085         shift
1086         if test $# = 0; then
1087           func_fatal_error "missing argument for --source-base"
1088         fi
1089         sourcebase=$1
1090         shift ;;
1091       --source-base=* )
1092         sourcebase=`echo "X$1" | sed -e 's/^X--source-base=//'`
1093         shift ;;
1094       --m4-base )
1095         shift
1096         if test $# = 0; then
1097           func_fatal_error "missing argument for --m4-base"
1098         fi
1099         m4base=$1
1100         shift ;;
1101       --m4-base=* )
1102         m4base=`echo "X$1" | sed -e 's/^X--m4-base=//'`
1103         shift ;;
1104       --po-base )
1105         shift
1106         if test $# = 0; then
1107           func_fatal_error "missing argument for --po-base"
1108         fi
1109         pobase=$1
1110         shift ;;
1111       --po-base=* )
1112         pobase=`echo "X$1" | sed -e 's/^X--po-base=//'`
1113         shift ;;
1114       --doc-base )
1115         shift
1116         if test $# = 0; then
1117           func_fatal_error "missing argument for --doc-base"
1118         fi
1119         docbase=$1
1120         shift ;;
1121       --doc-base=* )
1122         docbase=`echo "X$1" | sed -e 's/^X--doc-base=//'`
1123         shift ;;
1124       --tests-base )
1125         shift
1126         if test $# = 0; then
1127           func_fatal_error "missing argument for --tests-base"
1128         fi
1129         testsbase=$1
1130         shift ;;
1131       --tests-base=* )
1132         testsbase=`echo "X$1" | sed -e 's/^X--tests-base=//'`
1133         shift ;;
1134       --aux-dir )
1135         shift
1136         if test $# = 0; then
1137           func_fatal_error "missing argument for --aux-dir"
1138         fi
1139         auxdir=$1
1140         shift ;;
1141       --aux-dir=* )
1142         auxdir=`echo "X$1" | sed -e 's/^X--aux-dir=//'`
1143         shift ;;
1144       --with-tests | --with-test | --with-tes | --with-te | --with-t)
1145         inctests=true
1146         shift ;;
1147       --with-obsolete | --with-obsolet | --with-obsole | --with-obsol | --with-obso | --with-obs | --with-ob | --with-o)
1148         incobsolete=true
1149         shift ;;
1150       --with-c++-tests | --with-c++-test | --with-c++-tes | --with-c++-te | --with-c++-t | --with-c++- | --with-c++ | --with-c+ | --with-c)
1151         inc_cxx_tests=true
1152         shift ;;
1153       --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)
1154         inc_longrunning_tests=true
1155         shift ;;
1156       --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)
1157         inc_privileged_tests=true
1158         shift ;;
1159       --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)
1160         inc_unportable_tests=true
1161         shift ;;
1162       --with-all-tests | --with-all-test | --with-all-tes | --with-all-te | --with-all-t | --with-all- | --with-all | --with-al | --with-a)
1163         inc_all_tests=true
1164         shift ;;
1165       --without-c++-tests | --without-c++-test | --without-c++-tes | --without-c++-te | --without-c++-t | --without-c++- | --without-c++ | --without-c+ | --without-c)
1166         excl_cxx_tests=true
1167         shift ;;
1168       --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)
1169         excl_longrunning_tests=true
1170         shift ;;
1171       --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)
1172         excl_privileged_tests=true
1173         shift ;;
1174       --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)
1175         excl_unportable_tests=true
1176         shift ;;
1177       --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)
1178         single_configure=true
1179         shift ;;
1180       --avoid )
1181         shift
1182         if test $# = 0; then
1183           func_fatal_error "missing argument for --avoid"
1184         fi
1185         func_append avoidlist " $1"
1186         shift ;;
1187       --avoid=* )
1188         arg=`echo "X$1" | sed -e 's/^X--avoid=//'`
1189         func_append avoidlist " $arg"
1190         shift ;;
1191       --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)
1192         cond_dependencies=true
1193         shift ;;
1194       --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)
1195         cond_dependencies=false
1196         shift ;;
1197       --lgpl )
1198         lgpl=yes
1199         shift ;;
1200       --lgpl=* )
1201         arg=`echo "X$1" | sed -e 's/^X--lgpl=//'`
1202         case "$arg" in
1203           2 | 3) ;;
1204           *) func_fatal_error "invalid LGPL version number for --lgpl" ;;
1205         esac
1206         lgpl=$arg
1207         shift ;;
1208       --makefile-name )
1209         shift
1210         if test $# = 0; then
1211           func_fatal_error "missing argument for --makefile-name"
1212         fi
1213         makefile_name="$1"
1214         shift ;;
1215       --makefile-name=* )
1216         makefile_name=`echo "X$1" | sed -e 's/^X--makefile-name=//'`
1217         shift ;;
1218       --libtool )
1219         libtool=true
1220         shift ;;
1221       --no-libtool )
1222         libtool=false
1223         shift ;;
1224       --macro-prefix )
1225         shift
1226         if test $# = 0; then
1227           func_fatal_error "missing argument for --macro-prefix"
1228         fi
1229         macro_prefix="$1"
1230         shift ;;
1231       --macro-prefix=* )
1232         macro_prefix=`echo "X$1" | sed -e 's/^X--macro-prefix=//'`
1233         shift ;;
1234       --po-domain )
1235         shift
1236         if test $# = 0; then
1237           func_fatal_error "missing argument for --po-domain"
1238         fi
1239         po_domain="$1"
1240         shift ;;
1241       --po-domain=* )
1242         po_domain=`echo "X$1" | sed -e 's/^X--po-domain=//'`
1243         shift ;;
1244       --witness-c-macro )
1245         shift
1246         if test $# = 0; then
1247           func_fatal_error "missing argument for --witness-c-macro"
1248         fi
1249         witness_c_macro="$1"
1250         shift ;;
1251       --witness-c-macro=* )
1252         witness_c_macro=`echo "X$1" | sed -e 's/^X--witness-c-macro=//'`
1253         shift ;;
1254       --vc-files )
1255         vc_files=true
1256         shift ;;
1257       --no-vc-files )
1258         vc_files=false
1259         shift ;;
1260       --no-changelog | --no-changelo | --no-changel | --no-change | --no-chang | --no-chan | --no-cha | --no-ch )
1261         do_changelog=false
1262         shift ;;
1263       --dry-run )
1264         doit=false
1265         shift ;;
1266       -s | --symbolic | --symboli | --symbol | --symbo | --symb | --symlink | --symlin | --symli | --syml | --sym | --sy )
1267         symbolic=true
1268         shift ;;
1269       --local-symlink | --local-symlin | --local-symli | --local-syml | --local-sym | --local-sy | --local-s )
1270         lsymbolic=true
1271         shift ;;
1272       -S | --more-symlinks | --more-symlink | --more-symlin | --more-symli | --more-syml | --more-sym | --more-sy | --more-s | --more- | --more | --mor | --mo )
1273         symbolic=true
1274         do_copyrights=
1275         shift ;;
1276       --help | --hel | --he | --h )
1277         func_usage
1278         func_exit $? ;;
1279       --version | --versio | --versi | --vers )
1280         func_version
1281         func_exit $? ;;
1282       -- )
1283         # Stop option processing
1284         shift
1285         break ;;
1286       -* )
1287         echo "gnulib-tool: unknown option $1" 1>&2
1288         echo "Try 'gnulib-tool --help' for more information." 1>&2
1289         func_exit 1 ;;
1290       * )
1291         break ;;
1292     esac
1293   done
1294
1295   if case "$mode" in import | add-import | remove-import) true;; *) false;; esac; then
1296     if test -n "$excl_cxx_tests" || test -n "$excl_longrunning_tests" \
1297        || test -n "$excl_privileged_tests" || test -n "$excl_unportable_tests" \
1298        || test "$single_configure" != false; then
1299       echo "gnulib-tool: invalid options for '$mode' mode" 1>&2
1300       echo "Try 'gnulib-tool --help' for more information." 1>&2
1301       func_exit 1
1302     fi
1303   fi
1304   # This code helps migrating from --import to --add-import or --update. It can
1305   # be removed on 2012-01-01.
1306   if test "$mode" = import && test $# = 0; then
1307     echo "gnulib-tool: cowardly refusing to erase the module list." 1>&2
1308     echo "The meaning of the option '--import' has changed." 1>&2
1309     echo "See the documentation at" 1>&2
1310     echo "<http://www.gnu.org/software/gnulib/manual/html_node/Modified-imports.html>." 1>&2
1311     echo "For updating to a newer version of gnulib, use" 1>&2
1312     echo "  gnulib-tool --add-import" 1>&2
1313     echo "For restoring files that were omitted from version control, use" 1>&2
1314     echo "  gnulib-tool --update" 1>&2
1315     func_exit 1
1316   fi
1317   if test "$mode" = update; then
1318     if test $# != 0; then
1319       echo "gnulib-tool: too many arguments in 'update' mode" 1>&2
1320       echo "Try 'gnulib-tool --help' for more information." 1>&2
1321       echo "If you really want to modify the gnulib configuration of your project," 1>&2
1322       echo "you need to use 'gnulib --import' - at your own risk!" 1>&2
1323       func_exit 1
1324     fi
1325     if test -n "$local_gnulib_dir" || test -n "$supplied_libname" \
1326        || test -n "$sourcebase" || test -n "$m4base" || test -n "$pobase" \
1327        || test -n "$docbase" || test -n "$testsbase" || test -n "$auxdir" \
1328        || test -n "$inctests" || test -n "$incobsolete" \
1329        || test -n "$inc_cxx_tests" || test -n "$inc_longrunning_tests" \
1330        || test -n "$inc_privileged_tests" || test -n "$inc_unportable_tests" \
1331        || test -n "$inc_all_tests" \
1332        || test -n "$excl_cxx_tests" || test -n "$excl_longrunning_tests" \
1333        || test -n "$excl_privileged_tests" || test -n "$excl_unportable_tests" \
1334        || test -n "$avoidlist" || test -n "$lgpl" || test -n "$makefile_name" \
1335        || test -n "$macro_prefix" || test -n "$po_domain" \
1336        || test -n "$witness_c_macro" || test -n "$vc_files"; then
1337       echo "gnulib-tool: invalid options for 'update' mode" 1>&2
1338       echo "Try 'gnulib-tool --help' for more information." 1>&2
1339       echo "If you really want to modify the gnulib configuration of your project," 1>&2
1340       echo "you need to use 'gnulib --import' - at your own risk!" 1>&2
1341       func_exit 1
1342     fi
1343     do_changelog=false
1344   fi
1345   if test -n "$pobase" && test -z "$po_domain"; then
1346     echo "gnulib-tool: together with --po-base, you need to specify --po-domain" 1>&2
1347     echo "Try 'gnulib-tool --help' for more information." 1>&2
1348     func_exit 1
1349   fi
1350   if test -z "$pobase" && test -n "$po_domain"; then
1351     func_warning "--po-domain has no effect without a --po-base option"
1352   fi
1353   if test "$cond_dependencies" = true && test -n "$inctests"; then
1354     echo "gnulib-tool: option --conditional-dependencies is not supported with --with-tests" 1>&2
1355     func_exit 1
1356   fi
1357
1358   # Determine the minimum supported autoconf version from the project's
1359   # configure.ac.
1360   DEFAULT_AUTOCONF_MINVERSION="2.59"
1361   autoconf_minversion=
1362   configure_ac=
1363   if case "$mode" in import | add-import | remove-import | update) true;; *) false;; esac \
1364      && test -n "$destdir"; then
1365     if test -f "$destdir"/configure.ac; then
1366       configure_ac="$destdir/configure.ac"
1367     else
1368       if test -f "$destdir"/configure.in; then
1369         configure_ac="$destdir/configure.in"
1370       fi
1371     fi
1372   else
1373     if test -f configure.ac; then
1374       configure_ac="configure.ac"
1375     else
1376       if test -f configure.in; then
1377         configure_ac="configure.in"
1378       fi
1379     fi
1380   fi
1381   if test -n "$configure_ac"; then
1382     # Use sed, not autoconf --trace, to look for the AC_PREREQ invocation,
1383     # because when some m4 files are omitted from a version control repository,
1384     # "autoconf --trace=AC_PREREQ" fails with an error message like this:
1385     #   m4: aclocal.m4:851: Cannot open m4/absolute-header.m4: No such file or directory
1386     #   autom4te: m4 failed with exit status: 1
1387     prereqs=
1388     my_sed_traces='
1389       s,#.*$,,
1390       s,^dnl .*$,,
1391       s, dnl .*$,,
1392       /AC_PREREQ/ {
1393         s,^.*AC_PREREQ([[ ]*\([^])]*\).*$,\1,p
1394       }'
1395     prereqs=`sed -n -e "$my_sed_traces" < "$configure_ac"`
1396     if test -n "$prereqs"; then
1397       autoconf_minversion=`
1398         for version in $prereqs; do echo $version; done |
1399         LC_ALL=C sort -nru | sed -e 1q
1400       `
1401     fi
1402   fi
1403   if test -z "$autoconf_minversion"; then
1404     autoconf_minversion=$DEFAULT_AUTOCONF_MINVERSION
1405   fi
1406   case "$autoconf_minversion" in
1407     1.* | 2.[0-4]* | 2.5[0-8]*)
1408       func_fatal_error "minimum supported autoconf version is 2.59. Try adding AC_PREREQ([$DEFAULT_AUTOCONF_MINVERSION]) to your configure.ac." ;;
1409   esac
1410
1411   # Remove trailing slashes from the directory names. This is necessary for
1412   # m4base (to avoid an error in func_import) and optional for the others.
1413   sed_trimtrailingslashes='s,\([^/]\)//*$,\1,'
1414   case "$local_gnulib_dir" in
1415     */ ) local_gnulib_dir=`echo "$local_gnulib_dir" | sed -e "$sed_trimtrailingslashes"` ;;
1416   esac
1417   case "$sourcebase" in
1418     */ ) sourcebase=`echo "$sourcebase" | sed -e "$sed_trimtrailingslashes"` ;;
1419   esac
1420   case "$m4base" in
1421     */ ) m4base=`echo "$m4base" | sed -e "$sed_trimtrailingslashes"` ;;
1422   esac
1423   case "$pobase" in
1424     */ ) pobase=`echo "$pobase" | sed -e "$sed_trimtrailingslashes"` ;;
1425   esac
1426   case "$docbase" in
1427     */ ) docbase=`echo "$docbase" | sed -e "$sed_trimtrailingslashes"` ;;
1428   esac
1429   case "$testsbase" in
1430     */ ) testsbase=`echo "$testsbase" | sed -e "$sed_trimtrailingslashes"` ;;
1431   esac
1432   case "$auxdir" in
1433     */ ) auxdir=`echo "$auxdir" | sed -e "$sed_trimtrailingslashes"` ;;
1434   esac
1435 }
1436
1437 func_gnulib_dir
1438 func_tmpdir
1439 trap 'exit_status=$?
1440       if test "$signal" != 0; then
1441         echo "caught signal $signal" >&2
1442       fi
1443       rm -rf "$tmp"
1444       exit $exit_status' 0
1445 for signal in 1 2 3 13 15; do
1446   trap '{ signal='$signal'; func_exit 1; }' $signal
1447 done
1448 signal=0
1449
1450 # Note: The 'eval' silences stderr output in dash.
1451 if (declare -A x && { x[f/2]='foo'; x[f/3]='bar'; eval test '${x[f/2]}' = foo; }) 2>/dev/null; then
1452   # Zsh 4 and Bash 4 have associative arrays.
1453   have_associative=true
1454 else
1455   # For other shells, use 'eval' with computed shell variable names.
1456   have_associative=false
1457 fi
1458
1459 # func_lookup_file file
1460 # looks up a file in $local_gnulib_dir or $gnulib_dir, or combines it through
1461 # 'patch'.
1462 # Input:
1463 # - local_gnulib_dir  from --local-dir
1464 # Output:
1465 # - lookedup_file   name of the merged (combined) file
1466 # - lookedup_tmp    true if it is located in the tmp directory, blank otherwise
1467 func_lookup_file ()
1468 {
1469   lkfile="$1"
1470   if test -n "$local_gnulib_dir" && test -f "$local_gnulib_dir/$lkfile"; then
1471     lookedup_file="$local_gnulib_dir/$lkfile"
1472     lookedup_tmp=
1473   else
1474     if test -f "$gnulib_dir/$lkfile"; then
1475       if test -n "$local_gnulib_dir" && test -f "$local_gnulib_dir/$lkfile.diff"; then
1476         lkbase=`echo "$lkfile" | sed -e 's,^.*/,,'`
1477         rm -f "$tmp/$lkbase"
1478         cp "$gnulib_dir/$lkfile" "$tmp/$lkbase"
1479         patch -s "$tmp/$lkbase" < "$local_gnulib_dir/$lkfile.diff" \
1480           || func_fatal_error "patch file $local_gnulib_dir/$lkfile.diff didn't apply cleanly"
1481         lookedup_file="$tmp/$lkbase"
1482         lookedup_tmp=true
1483       else
1484         lookedup_file="$gnulib_dir/$lkfile"
1485         lookedup_tmp=
1486       fi
1487     else
1488       func_fatal_error "file $gnulib_dir/$lkfile not found"
1489     fi
1490   fi
1491 }
1492
1493 # func_sanitize_modulelist
1494 # receives a list of possible module names on standard input, one per line.
1495 # It removes those which are just file names unrelated to modules, and outputs
1496 # the resulting list to standard output, one per line.
1497 func_sanitize_modulelist ()
1498 {
1499   sed -e '/^CVS\//d' -e '/\/CVS\//d' \
1500       -e '/^ChangeLog$/d' -e '/\/ChangeLog$/d' \
1501       -e '/^COPYING$/d' -e '/\/COPYING$/d' \
1502       -e '/^README$/d' -e '/\/README$/d' \
1503       -e '/^TEMPLATE$/d' \
1504       -e '/^TEMPLATE-EXTENDED$/d' \
1505       -e '/^TEMPLATE-TESTS$/d' \
1506       -e '/^\..*/d' \
1507       -e '/~$/d'
1508 }
1509
1510 # func_all_modules
1511 # Input:
1512 # - local_gnulib_dir  from --local-dir
1513 func_all_modules ()
1514 {
1515   # Filter out metainformation files like README, which are not modules.
1516   # Filter out unit test modules; they can be retrieved through
1517   # --extract-tests-module if desired.
1518   {
1519     (cd "$gnulib_dir" && find modules -type f -print | sed -e 's,^modules/,,')
1520     if test -n "$local_gnulib_dir" && test -d "$local_gnulib_dir/modules"; then
1521       (cd "$local_gnulib_dir" && find modules -type f -print | sed -e 's,^modules/,,' -e 's,\.diff$,,')
1522     fi
1523   } \
1524       | func_sanitize_modulelist \
1525       | sed -e '/-tests$/d' \
1526       | LC_ALL=C sort -u
1527 }
1528
1529 # func_exists_module module
1530 # tests whether a module, given by name, exists
1531 # Input:
1532 # - local_gnulib_dir  from --local-dir
1533 func_exists_module ()
1534 {
1535   { test -f "$gnulib_dir/modules/$1" \
1536     || { test -n "$local_gnulib_dir" && test -d "$local_gnulib_dir/modules" \
1537          && test -f "$local_gnulib_dir/modules/$1"; }; } \
1538   && test "CVS" != "$1" \
1539   && test "ChangeLog" != "$1" \
1540   && test "COPYING" != "$1" \
1541   && test "README" != "$1" \
1542   && test "TEMPLATE" != "$1" \
1543   && test "TEMPLATE-EXTENDED" != "$1" \
1544   && test "TEMPLATE-TESTS" != "$1"
1545 }
1546
1547 # func_verify_module
1548 # verifies a module name
1549 # Input:
1550 # - local_gnulib_dir  from --local-dir
1551 # - module          module name argument
1552 func_verify_module ()
1553 {
1554   if func_exists_module "$module"; then
1555     # OK, $module is a correct module name.
1556     # Verify that building the module description with 'patch' succeeds.
1557     func_lookup_file "modules/$module"
1558   else
1559     func_warning "module $module doesn't exist"
1560     module=
1561   fi
1562 }
1563
1564 # func_verify_nontests_module
1565 # verifies a module name, excluding tests modules
1566 # Input:
1567 # - local_gnulib_dir  from --local-dir
1568 # - module          module name argument
1569 func_verify_nontests_module ()
1570 {
1571   case "$module" in
1572     *-tests ) module= ;;
1573     * ) func_verify_module ;;
1574   esac
1575 }
1576
1577 # func_verify_tests_module
1578 # verifies a module name, considering only tests modules
1579 # Input:
1580 # - local_gnulib_dir  from --local-dir
1581 # - module          module name argument
1582 func_verify_tests_module ()
1583 {
1584   case "$module" in
1585     *-tests ) func_verify_module ;;
1586     * ) module= ;;
1587   esac
1588 }
1589
1590 # Suffix of a sed expression that extracts a particular field from a
1591 # module description.
1592 # A field starts with a line that contains a keyword, such as 'Description',
1593 # followed by a colon and optional whitespace. All following lines, up to
1594 # the next field (or end of file if there is none) form the contents of the
1595 # field.
1596 # An absent field is equivalent to a field with empty contents.
1597 # NOTE: Keep this in sync with sed_extract_cache_prog below!
1598 sed_extract_prog=':[     ]*$/ {
1599   :a
1600     n
1601     s/^Description:[     ]*$//
1602     s/^Comment:[         ]*$//
1603     s/^Status:[  ]*$//
1604     s/^Notice:[  ]*$//
1605     s/^Applicability:[   ]*$//
1606     s/^Files:[   ]*$//
1607     s/^Depends-on:[      ]*$//
1608     s/^configure\.ac-early:[     ]*$//
1609     s/^configure\.ac:[   ]*$//
1610     s/^Makefile\.am:[    ]*$//
1611     s/^Include:[         ]*$//
1612     s/^Link:[    ]*$//
1613     s/^License:[         ]*$//
1614     s/^Maintainer:[      ]*$//
1615     tb
1616     p
1617     ba
1618   :b
1619 }'
1620
1621 # Piece of a sed expression that converts a field header line to a shell
1622 # variable name,
1623 # NOTE: Keep this in sync with sed_extract_prog above!
1624 sed_extract_field_header='
1625   s/^Description:[       ]*$/description/
1626   s/^Comment:[   ]*$/comment/
1627   s/^Status:[    ]*$/status/
1628   s/^Notice:[    ]*$/notice/
1629   s/^Applicability:[     ]*$/applicability/
1630   s/^Files:[     ]*$/files/
1631   s/^Depends-on:[        ]*$/dependson/
1632   s/^configure\.ac-early:[       ]*$/configureac_early/
1633   s/^configure\.ac:[     ]*$/configureac/
1634   s/^Makefile\.am:[      ]*$/makefile/
1635   s/^Include:[   ]*$/include/
1636   s/^Link:[      ]*$/link/
1637   s/^License:[   ]*$/license/
1638   s/^Maintainer:[        ]*$/maintainer/'
1639
1640 if $modcache; then
1641
1642   if $have_associative; then
1643
1644     # Declare the associative arrays.
1645     declare -A modcache_cached
1646     sed_to_declare_statement='s|^.*/\([a-zA-Z0-9_]*\)/$|declare -A modcache_\1|p'
1647     declare_script=`echo "$sed_extract_field_header" | sed -n -e "$sed_to_declare_statement"`
1648     eval "$declare_script"
1649
1650   else
1651
1652     # func_cache_var module
1653     # computes the cache variable name corresponding to $module.
1654     # Note: This computation can map different module names to the same
1655     # cachevar (such as 'foo-bar', 'foo_bar', or 'foo/bar'); the caller has
1656     # to protect against this case.
1657     # Output:
1658     # - cachevar               a shell variable name
1659     if (f=foo; eval echo '${f//o/e}') < /dev/null 2>/dev/null | grep fee >/dev/null; then
1660       # Bash 2.0 and newer, ksh, and zsh support the syntax
1661       #   ${param//pattern/replacement}
1662       # as a shorthand for
1663       #   `echo "$param" | sed -e "s/pattern/replacement/g"`.
1664       # Note: The 'eval' is necessary for dash and NetBSD /bin/sh.
1665       eval 'func_cache_var ()
1666       {
1667         cachevar=c_${1//[!a-zA-Z0-9_]/_}
1668       }'
1669     else
1670       func_cache_var ()
1671       {
1672         case $1 in
1673           *[!a-zA-Z0-9_]*)
1674             cachevar=c_`echo "$1" | LC_ALL=C sed -e 's/[^a-zA-Z0-9_]/_/g'` ;;
1675           *)
1676             cachevar=c_$1 ;;
1677         esac
1678       }
1679     fi
1680
1681   fi
1682
1683   # func_init_sed_convert_to_cache_statements
1684   # Input:
1685   # - modcachevar_assignment
1686   # Output:
1687   # - sed_convert_to_cache_statements
1688   func_init_sed_convert_to_cache_statements ()
1689   {
1690     # 'sed' script that turns a module description into shell script
1691     # assignments, suitable to be eval'ed.  All active characters are escaped.
1692     # This script turns
1693     #   Description:
1694     #   Some module's description
1695     #
1696     #   Files:
1697     #   lib/file.h
1698     # into:
1699     #   modcache_description[$1]=\
1700     #   'Some module'"'"'s description
1701     #   '
1702     #   modcache_files[$1]=\
1703     #   'lib/file.h'
1704     # or:
1705     #   c_MODULE_description_set=set; c_MODULE_description=\
1706     #   'Some module'"'"'s description
1707     #   '
1708     #   c_MODULE_files_set=set; c_MODULE_files=\
1709     #   'lib/file.h'
1710     # The script consists of two parts:
1711     # 1) Ignore the lines before the first field header.
1712     # 2) A loop, treating non-field-header lines by escaping single quotes
1713     #    and adding a closing quote in the last line,
1714     sed_convert_to_cache_statements="
1715       :llla
1716         # Here we have not yet seen a field header.
1717
1718         # See if the current line contains a field header.
1719         t llla1
1720         :llla1
1721         ${sed_extract_field_header}
1722         t lllb
1723
1724         # No field header. Ignore the line.
1725
1726         # Read the next line. Upon EOF, just exit.
1727         n
1728       b llla
1729
1730       :lllb
1731         # The current line contains a field header.
1732
1733         # Turn it into the beginning of an assignment.
1734         s/^\\(.*\\)\$/${modcachevar_assignment}\\\\/
1735
1736         # Move it to the hold space. Don't print it yet,
1737         # because we want no assignment if the field is empty.
1738         h
1739
1740         # Read the next line.
1741         # Upon EOF, the field was empty. Print no assignment. Just exit.
1742         n
1743
1744         # See if the current line contains a field header.
1745         t lllb1
1746         :lllb1
1747         ${sed_extract_field_header}
1748         # If it is, the previous field was empty. Print no assignment.
1749         t lllb
1750
1751         # Not a field header.
1752
1753         # Print the previous line, held in the hold space.
1754         x
1755         p
1756         x
1757
1758         # Transform single quotes.
1759         s/'/'\"'\"'/g
1760
1761         # Prepend a single quote.
1762         s/^/'/
1763
1764         :lllc
1765
1766           # Move it to the hold space.
1767           h
1768
1769           # Read the next line.
1770           # Upon EOF, branch.
1771           \${
1772             b llle
1773           }
1774           n
1775
1776           # See if the current line contains a field header.
1777           t lllc1
1778           :lllc1
1779           ${sed_extract_field_header}
1780           t llld
1781
1782           # Print the previous line, held in the hold space.
1783           x
1784           p
1785           x
1786
1787           # Transform single quotes.
1788           s/'/'\"'\"'/g
1789
1790         b lllc
1791
1792         :llld
1793         # A field header.
1794         # Print the previous line, held in the hold space, with a single quote
1795         # to end the assignment.
1796         x
1797         s/\$/'/
1798         p
1799         x
1800
1801       b lllb
1802
1803       :llle
1804       # EOF seen.
1805       # Print the previous line, held in the hold space, with a single quote
1806       # to end the assignment.
1807       x
1808       s/\$/'/
1809       p
1810       # Exit.
1811       n
1812       "
1813     if ! $sed_comments; then
1814       # Remove comments.
1815       sed_convert_to_cache_statements=`echo "$sed_convert_to_cache_statements" \
1816                                        | sed -e 's/^ *//' -e 's/^#.*//'`
1817     fi
1818   }
1819
1820   if $have_associative; then
1821     # sed_convert_to_cache_statements does not depend on the module.
1822     modcachevar_assignment='modcache_\1[$1]='
1823     func_init_sed_convert_to_cache_statements
1824   fi
1825
1826   # func_cache_lookup_module module
1827   #
1828   # looks up a module, like 'func_lookup_file modules/$module', and stores all
1829   # of its relevant data in a cache in the memory of the processing shell.  If
1830   # already cached, it does not look it up again, thus saving file access time.
1831   # Parameters:
1832   # - module                             non-empty string
1833   # Output if $have_associative:
1834   # - modcache_cached[$module]           set to yes
1835   # - modcache_description[$module] ==
1836   # - modcache_status[$module]        \  set to the field's value, minus the
1837   # - ...                             /  final newline,
1838   # - modcache_maintainer[$module]  ==   or unset if the field's value is empty
1839   # Output if ! $have_associative:
1840   # - cachevar                           a shell variable name
1841   # - ${cachevar}_cached                 set to $module
1842   # - ${cachevar}_description       ==
1843   # - ${cachevar}_status              \  set to the field's value, minus the
1844   # - ...                             /  final newline,
1845   # - ${cachevar}_maintainer        ==   or unset if the field's value is empty
1846   # - ${cachevar}_description_set   ==
1847   # - ${cachevar}_status_set          \  set to non-empty if the field's value
1848   # - ...                             /  is non-empty,
1849   # - ${cachevar}_maintainer_set    ==   or unset if the field's value is empty
1850   func_cache_lookup_module ()
1851   {
1852     if $have_associative; then
1853       eval 'cached=${modcache_cached[$1]}'
1854     else
1855       func_cache_var "$1"
1856       eval "cached=\"\$${cachevar}_cached\""
1857     fi
1858     if test -z "$cached"; then
1859       # Not found in cache. Look it up on the file system.
1860       func_lookup_file "modules/$1"
1861       if $have_associative; then
1862         eval 'modcache_cached[$1]=yes'
1863       else
1864         eval "${cachevar}_cached=\"\$1\""
1865       fi
1866       if ! $have_associative; then
1867         # sed_convert_to_cache_statements depends on the module.
1868         modcachevar_assignment="${cachevar}"'_\1_set=set; '"${cachevar}"'_\1='
1869         func_init_sed_convert_to_cache_statements
1870       fi
1871       cache_statements=`LC_ALL=C sed -n -e "$sed_convert_to_cache_statements" < "$lookedup_file"`
1872       eval "$cache_statements"
1873     else
1874       if ! $have_associative; then
1875         if test "$1" != "$cached"; then
1876           func_fatal_error "cache variable collision between $1 and $cached"
1877         fi
1878       fi
1879     fi
1880   }
1881
1882 fi
1883
1884 # func_get_description module
1885 # Input:
1886 # - local_gnulib_dir  from --local-dir
1887 # - modcache          true or false, from --cache-modules/--no-cache-modules
1888 func_get_description ()
1889 {
1890   if ! $modcache; then
1891     func_lookup_file "modules/$1"
1892     sed -n -e "/^Description$sed_extract_prog" < "$lookedup_file"
1893   else
1894     func_cache_lookup_module "$1"
1895     # Output the field's value, including the final newline (if any).
1896     if $have_associative; then
1897       if eval 'test -n "${modcache_description[$1]+set}"'; then
1898         eval 'echo "${modcache_description[$1]}"'
1899       fi
1900     else
1901       eval "field_set=\"\$${cachevar}_description_set\""
1902       if test -n "$field_set"; then
1903         eval "field_value=\"\$${cachevar}_description\""
1904         echo "${field_value}"
1905       fi
1906     fi
1907   fi
1908 }
1909
1910 # func_get_comment module
1911 # Input:
1912 # - local_gnulib_dir  from --local-dir
1913 # - modcache          true or false, from --cache-modules/--no-cache-modules
1914 func_get_comment ()
1915 {
1916   if ! $modcache; then
1917     func_lookup_file "modules/$1"
1918     sed -n -e "/^Comment$sed_extract_prog" < "$lookedup_file"
1919   else
1920     func_cache_lookup_module "$1"
1921     # Output the field's value, including the final newline (if any).
1922     if $have_associative; then
1923       if eval 'test -n "${modcache_comment[$1]+set}"'; then
1924         eval 'echo "${modcache_comment[$1]}"'
1925       fi
1926     else
1927       eval "field_set=\"\$${cachevar}_comment_set\""
1928       if test -n "$field_set"; then
1929         eval "field_value=\"\$${cachevar}_comment\""
1930         echo "${field_value}"
1931       fi
1932     fi
1933   fi
1934 }
1935
1936 # func_get_status module
1937 # Input:
1938 # - local_gnulib_dir  from --local-dir
1939 # - modcache          true or false, from --cache-modules/--no-cache-modules
1940 func_get_status ()
1941 {
1942   if ! $modcache; then
1943     func_lookup_file "modules/$1"
1944     sed -n -e "/^Status$sed_extract_prog" < "$lookedup_file"
1945   else
1946     func_cache_lookup_module "$1"
1947     # Output the field's value, including the final newline (if any).
1948     if $have_associative; then
1949       if eval 'test -n "${modcache_status[$1]+set}"'; then
1950         eval 'echo "${modcache_status[$1]}"'
1951       fi
1952     else
1953       eval "field_set=\"\$${cachevar}_status_set\""
1954       if test -n "$field_set"; then
1955         eval "field_value=\"\$${cachevar}_status\""
1956         echo "${field_value}"
1957       fi
1958     fi
1959   fi
1960 }
1961
1962 # func_get_notice module
1963 # Input:
1964 # - local_gnulib_dir  from --local-dir
1965 # - modcache          true or false, from --cache-modules/--no-cache-modules
1966 func_get_notice ()
1967 {
1968   if ! $modcache; then
1969     func_lookup_file "modules/$1"
1970     sed -n -e "/^Notice$sed_extract_prog" < "$lookedup_file"
1971   else
1972     func_cache_lookup_module "$1"
1973     # Output the field's value, including the final newline (if any).
1974     if $have_associative; then
1975       if eval 'test -n "${modcache_notice[$1]+set}"'; then
1976         eval 'echo "${modcache_notice[$1]}"'
1977       fi
1978     else
1979       eval "field_set=\"\$${cachevar}_notice_set\""
1980       if test -n "$field_set"; then
1981         eval "field_value=\"\$${cachevar}_notice\""
1982         echo "${field_value}"
1983       fi
1984     fi
1985   fi
1986 }
1987
1988 # func_get_applicability module
1989 # Input:
1990 # - local_gnulib_dir  from --local-dir
1991 # - modcache          true or false, from --cache-modules/--no-cache-modules
1992 # The expected result (on stdout) is either 'main', or 'tests', or 'all'.
1993 func_get_applicability ()
1994 {
1995   if ! $modcache; then
1996     func_lookup_file "modules/$1"
1997     my_applicability=`sed -n -e "/^Applicability$sed_extract_prog" < "$lookedup_file"`
1998   else
1999     func_cache_lookup_module "$1"
2000     # Get the field's value, without the final newline.
2001     if $have_associative; then
2002       eval 'my_applicability="${modcache_applicability[$1]}"'
2003     else
2004       eval "my_applicability=\"\$${cachevar}_applicability\""
2005     fi
2006   fi
2007   if test -n "$my_applicability"; then
2008     echo $my_applicability
2009   else
2010     # The default is 'main' or 'tests', depending on the module's name.
2011     case $1 in
2012       *-tests) echo "tests";;
2013       *)       echo "main";;
2014     esac
2015   fi
2016 }
2017
2018 # func_get_filelist module
2019 # Input:
2020 # - local_gnulib_dir  from --local-dir
2021 # - modcache          true or false, from --cache-modules/--no-cache-modules
2022 func_get_filelist ()
2023 {
2024   if ! $modcache; then
2025     func_lookup_file "modules/$1"
2026     sed -n -e "/^Files$sed_extract_prog" < "$lookedup_file"
2027   else
2028     func_cache_lookup_module "$1"
2029     # Output the field's value, including the final newline (if any).
2030     if $have_associative; then
2031       if eval 'test -n "${modcache_files[$1]+set}"'; then
2032         eval 'echo "${modcache_files[$1]}"'
2033       fi
2034     else
2035       eval "field_set=\"\$${cachevar}_files_set\""
2036       if test -n "$field_set"; then
2037         eval "field_value=\"\$${cachevar}_files\""
2038         echo "${field_value}"
2039       fi
2040     fi
2041   fi
2042   echo m4/00gnulib.m4
2043   echo m4/gnulib-common.m4
2044   case "$autoconf_minversion" in
2045     2.59)
2046       echo m4/onceonly.m4
2047       ;;
2048   esac
2049 }
2050
2051 # func_filter_filelist outputvar separator filelist prefix suffix removed_prefix removed_suffix [added_prefix [added_suffix]]
2052 # stores in outputvar the filtered and processed filelist. Filtering: Only the
2053 # elements starting with prefix and ending with suffix are considered.
2054 # Processing: removed_prefix and removed_suffix are removed from each element,
2055 # added_prefix and added_suffix are added to each element.
2056 # prefix, suffix should not contain shell-special characters.
2057 # removed_prefix, removed_suffix should not contain the characters "$`\{}[]^|.
2058 # added_prefix, added_suffix should not contain the characters \|&.
2059 func_filter_filelist ()
2060 {
2061   if test "$2" != "$nl" \
2062      || { $fast_func_append \
2063           && { test -z "$6" || $fast_func_remove_prefix; } \
2064           && { test -z "$7" || $fast_func_remove_suffix; }; \
2065         }; then
2066     ffflist=
2067     for fff in $3; do
2068       # Do not quote possibly-empty parameters in case patterns,
2069       # AIX and HP-UX ksh won't match them if they are empty.
2070       case "$fff" in
2071         $4*$5)
2072           if test -n "$6"; then
2073             func_remove_prefix fff "$6"
2074           fi
2075           if test -n "$7"; then
2076             func_remove_suffix fff "$7"
2077           fi
2078           fff="$8${fff}$9"
2079           if test -z "$ffflist"; then
2080             ffflist="${fff}"
2081           else
2082             func_append ffflist "$2${fff}"
2083           fi
2084           ;;
2085       esac
2086     done
2087   else
2088     sed_fff_filter="s|^$6\(.*\)$7\$|$8\\1$9|"
2089     ffflist=`for fff in $3; do
2090                case "$fff" in
2091                  $4*$5) echo "$fff" ;;
2092                esac
2093              done | sed -e "$sed_fff_filter"`
2094   fi
2095   eval "$1=\"\$ffflist\""
2096 }
2097
2098 # func_get_dependencies module
2099 # Input:
2100 # - local_gnulib_dir  from --local-dir
2101 # - modcache          true or false, from --cache-modules/--no-cache-modules
2102 func_get_dependencies ()
2103 {
2104   # ${module}-tests implicitly depends on ${module}, if that module exists.
2105   case "$1" in
2106     *-tests)
2107       fgd1="$1"
2108       func_remove_suffix fgd1 '-tests'
2109       if func_exists_module "$fgd1"; then
2110         echo "$fgd1"
2111       fi
2112       ;;
2113   esac
2114   # Then the explicit dependencies listed in the module description.
2115   { if ! $modcache; then
2116       func_lookup_file "modules/$1"
2117       sed -n -e "/^Depends-on$sed_extract_prog" < "$lookedup_file"
2118     else
2119       func_cache_lookup_module "$1"
2120       # Output the field's value, including the final newline (if any).
2121       if $have_associative; then
2122         if eval 'test -n "${modcache_dependson[$1]+set}"'; then
2123           eval 'echo "${modcache_dependson[$1]}"'
2124         fi
2125       else
2126         eval "field_set=\"\$${cachevar}_dependson_set\""
2127         if test -n "$field_set"; then
2128           eval "field_value=\"\$${cachevar}_dependson\""
2129           echo "${field_value}"
2130         fi
2131       fi
2132     fi
2133   } \
2134   | sed -e '/^#/d'
2135 }
2136
2137 # func_get_autoconf_early_snippet module
2138 # Input:
2139 # - local_gnulib_dir  from --local-dir
2140 # - modcache          true or false, from --cache-modules/--no-cache-modules
2141 func_get_autoconf_early_snippet ()
2142 {
2143   if ! $modcache; then
2144     func_lookup_file "modules/$1"
2145     sed -n -e "/^configure\.ac-early$sed_extract_prog" < "$lookedup_file"
2146   else
2147     func_cache_lookup_module "$1"
2148     # Output the field's value, including the final newline (if any).
2149     if $have_associative; then
2150       if eval 'test -n "${modcache_configureac_early[$1]+set}"'; then
2151         eval 'echo "${modcache_configureac_early[$1]}"'
2152       fi
2153     else
2154       eval "field_set=\"\$${cachevar}_configureac_early_set\""
2155       if test -n "$field_set"; then
2156         eval "field_value=\"\$${cachevar}_configureac_early\""
2157         echo "${field_value}"
2158       fi
2159     fi
2160   fi
2161 }
2162
2163 # func_get_autoconf_snippet module
2164 # Input:
2165 # - local_gnulib_dir  from --local-dir
2166 # - modcache          true or false, from --cache-modules/--no-cache-modules
2167 func_get_autoconf_snippet ()
2168 {
2169   if ! $modcache; then
2170     func_lookup_file "modules/$1"
2171     sed -n -e "/^configure\.ac$sed_extract_prog" < "$lookedup_file"
2172   else
2173     func_cache_lookup_module "$1"
2174     # Output the field's value, including the final newline (if any).
2175     if $have_associative; then
2176       if eval 'test -n "${modcache_configureac[$1]+set}"'; then
2177         eval 'echo "${modcache_configureac[$1]}"'
2178       fi
2179     else
2180       eval "field_set=\"\$${cachevar}_configureac_set\""
2181       if test -n "$field_set"; then
2182         eval "field_value=\"\$${cachevar}_configureac\""
2183         echo "${field_value}"
2184       fi
2185     fi
2186   fi
2187 }
2188
2189 # func_get_automake_snippet_conditional module
2190 # returns the part of the Makefile.am snippet that can be put inside Automake
2191 # conditionals.
2192 # Input:
2193 # - local_gnulib_dir  from --local-dir
2194 # - modcache          true or false, from --cache-modules/--no-cache-modules
2195 func_get_automake_snippet_conditional ()
2196 {
2197   if ! $modcache; then
2198     func_lookup_file "modules/$1"
2199     sed -n -e "/^Makefile\.am$sed_extract_prog" < "$lookedup_file"
2200   else
2201     func_cache_lookup_module "$1"
2202     # Output the field's value, including the final newline (if any).
2203     if $have_associative; then
2204       if eval 'test -n "${modcache_makefile[$1]+set}"'; then
2205         eval 'echo "${modcache_makefile[$1]}"'
2206       fi
2207     else
2208       eval "field_set=\"\$${cachevar}_makefile_set\""
2209       if test -n "$field_set"; then
2210         eval "field_value=\"\$${cachevar}_makefile\""
2211         echo "${field_value}"
2212       fi
2213     fi
2214   fi
2215 }
2216
2217 # func_get_automake_snippet_unconditional module
2218 # returns the part of the Makefile.am snippet that must stay outside of
2219 # Automake conditionals.
2220 # Input:
2221 # - local_gnulib_dir  from --local-dir
2222 # - modcache          true or false, from --cache-modules/--no-cache-modules
2223 func_get_automake_snippet_unconditional ()
2224 {
2225   case "$1" in
2226     *-tests)
2227       # *-tests module live in tests/, not lib/.
2228       # Synthesize an EXTRA_DIST augmentation.
2229       all_files=`func_get_filelist $1`
2230       func_filter_filelist tests_files " " "$all_files" 'tests/' '' 'tests/' ''
2231       extra_files="$tests_files"
2232       if test -n "$extra_files"; then
2233         echo "EXTRA_DIST +=" $extra_files
2234         echo
2235       fi
2236       ;;
2237     *)
2238       # Synthesize an EXTRA_DIST augmentation.
2239       sed_combine_lines='/\\$/{
2240         :a
2241         N
2242         s/\\\n/ /
2243         s/\\$/\\/
2244         ta
2245       }'
2246       sed_extract_mentioned_files='s/^lib_SOURCES[       ]*+=[   ]*//p'
2247       already_mentioned_files=` \
2248         { if ! $modcache; then
2249             func_lookup_file "modules/$1"
2250             sed -n -e "/^Makefile\.am$sed_extract_prog" < "$lookedup_file"
2251           else
2252             func_cache_lookup_module "$1"
2253             if $have_associative; then
2254               if eval 'test -n "${modcache_makefile[$1]+set}"'; then
2255                 eval 'echo "${modcache_makefile[$1]}"'
2256               fi
2257             else
2258               eval 'field_set="$'"${cachevar}"'_makefile_set"'
2259               if test -n "$field_set"; then
2260                 eval 'field_value="$'"${cachevar}"'_makefile"'
2261                 echo "${field_value}"
2262               fi
2263             fi
2264           fi
2265         } \
2266         | sed -e "$sed_combine_lines" \
2267         | sed -n -e "$sed_extract_mentioned_files" | sed -e 's/#.*//'`
2268       all_files=`func_get_filelist $1`
2269       func_filter_filelist lib_files "$nl" "$all_files" 'lib/' '' 'lib/' ''
2270       # Remove $already_mentioned_files from $lib_files.
2271       echo "$lib_files" | LC_ALL=C sort -u > "$tmp"/lib-files
2272       extra_files=`for f in $already_mentioned_files; do echo $f; done \
2273                    | LC_ALL=C sort -u | LC_ALL=C join -v 2 - "$tmp"/lib-files`
2274       if test -n "$extra_files"; then
2275         echo "EXTRA_DIST +=" $extra_files
2276         echo
2277       fi
2278       # Synthesize also an EXTRA_lib_SOURCES augmentation.
2279       # This is necessary so that automake can generate the right list of
2280       # dependency rules.
2281       # A possible approach would be to use autom4te --trace of the redefined
2282       # AC_LIBOBJ and AC_REPLACE_FUNCS macros when creating the Makefile.am
2283       # (use autom4te --trace, not just grep, so that AC_LIBOBJ invocations
2284       # inside autoconf's built-in macros are not missed).
2285       # But it's simpler and more robust to do it here, based on the file list.
2286       # If some .c file exists and is not used with AC_LIBOBJ - for example,
2287       # a .c file is preprocessed into another .c file for BUILT_SOURCES -,
2288       # automake will generate a useless dependency; this is harmless.
2289       case "$1" in
2290         relocatable-prog-wrapper) ;;
2291         pt_chown) ;;
2292         *)
2293           func_filter_filelist extra_files "$nl" "$extra_files" '' '.c' '' ''
2294           if test -n "$extra_files"; then
2295             echo "EXTRA_lib_SOURCES +=" $extra_files
2296             echo
2297           fi
2298           ;;
2299       esac
2300       # Synthesize an EXTRA_DIST augmentation also for the files in build-aux/.
2301       func_filter_filelist buildaux_files "$nl" "$all_files" 'build-aux/' '' 'build-aux/' ''
2302       if test -n "$buildaux_files"; then
2303         sed_prepend_auxdir='s,^,$(top_srcdir)/'"$auxdir"'/,'
2304         echo "EXTRA_DIST += "`echo "$buildaux_files" | sed -e "$sed_prepend_auxdir"`
2305         echo
2306       fi
2307       # Synthesize an EXTRA_DIST augmentation also for the files from top/.
2308       func_filter_filelist top_files "$nl" "$all_files" 'top/' '' 'top/' ''
2309       if test -n "$top_files"; then
2310         sed_prepend_topdir='s,^,$(top_srcdir)/,'
2311         echo "EXTRA_DIST += "`echo "$top_files" | sed -e "$sed_prepend_topdir"`
2312         echo
2313       fi
2314       ;;
2315   esac
2316 }
2317
2318 # func_get_automake_snippet module
2319 # Input:
2320 # - local_gnulib_dir  from --local-dir
2321 # - modcache          true or false, from --cache-modules/--no-cache-modules
2322 func_get_automake_snippet ()
2323 {
2324   func_get_automake_snippet_conditional "$1"
2325   func_get_automake_snippet_unconditional "$1"
2326 }
2327
2328 # func_get_include_directive module
2329 # Input:
2330 # - local_gnulib_dir  from --local-dir
2331 # - modcache          true or false, from --cache-modules/--no-cache-modules
2332 func_get_include_directive ()
2333 {
2334   {
2335     if ! $modcache; then
2336       func_lookup_file "modules/$1"
2337       sed -n -e "/^Include$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_include[$1]+set}"'; then
2343           eval 'echo "${modcache_include[$1]}"'
2344         fi
2345       else
2346         eval "field_set=\"\$${cachevar}_include_set\""
2347         if test -n "$field_set"; then
2348           eval "field_value=\"\$${cachevar}_include\""
2349           echo "${field_value}"
2350         fi
2351       fi
2352     fi
2353   } | sed -e 's/^\(["<]\)/#include \1/'
2354 }
2355
2356 # func_get_link_directive module
2357 # Input:
2358 # - local_gnulib_dir  from --local-dir
2359 # - modcache          true or false, from --cache-modules/--no-cache-modules
2360 func_get_link_directive ()
2361 {
2362   if ! $modcache; then
2363     func_lookup_file "modules/$1"
2364     sed -n -e "/^Link$sed_extract_prog" < "$lookedup_file"
2365   else
2366     func_cache_lookup_module "$1"
2367     # Output the field's value, including the final newline (if any).
2368     if $have_associative; then
2369       if eval 'test -n "${modcache_link[$1]+set}"'; then
2370         eval 'echo "${modcache_link[$1]}"'
2371       fi
2372     else
2373       eval "field_set=\"\$${cachevar}_link_set\""
2374       if test -n "$field_set"; then
2375         eval "field_value=\"\$${cachevar}_link\""
2376         echo "${field_value}"
2377       fi
2378     fi
2379   fi
2380 }
2381
2382 # func_get_license_raw module
2383 # Input:
2384 # - local_gnulib_dir  from --local-dir
2385 # - modcache          true or false, from --cache-modules/--no-cache-modules
2386 func_get_license_raw ()
2387 {
2388   if ! $modcache; then
2389     func_lookup_file "modules/$1"
2390     sed -n -e "/^License$sed_extract_prog" < "$lookedup_file"
2391   else
2392     func_cache_lookup_module "$1"
2393     # Output the field's value, including the final newline (if any).
2394     if $have_associative; then
2395       if eval 'test -n "${modcache_license[$1]+set}"'; then
2396         eval 'echo "${modcache_license[$1]}"'
2397       fi
2398     else
2399       eval "field_set=\"\$${cachevar}_license_set\""
2400       if test -n "$field_set"; then
2401         eval "field_value=\"\$${cachevar}_license\""
2402         echo "${field_value}"
2403       fi
2404     fi
2405   fi
2406 }
2407
2408 # func_get_license module
2409 # Input:
2410 # - local_gnulib_dir  from --local-dir
2411 # - modcache          true or false, from --cache-modules/--no-cache-modules
2412 func_get_license ()
2413 {
2414   # Warn if the License field is missing.
2415   case "$1" in
2416     *-tests ) ;;
2417     * )
2418       license=`func_get_license_raw "$1"`
2419       if test -z "$license"; then
2420         func_warning "module $1 lacks a License"
2421       fi
2422       ;;
2423   esac
2424   {
2425     func_get_license_raw "$1"
2426     # The default is GPL.
2427     echo "GPL"
2428   } | sed -e 's,^ *$,,' | sed -e 1q
2429 }
2430
2431 # func_get_maintainer module
2432 # Input:
2433 # - local_gnulib_dir  from --local-dir
2434 # - modcache          true or false, from --cache-modules/--no-cache-modules
2435 func_get_maintainer ()
2436 {
2437   if ! $modcache; then
2438     func_lookup_file "modules/$1"
2439     sed -n -e "/^Maintainer$sed_extract_prog" < "$lookedup_file"
2440   else
2441     func_cache_lookup_module "$1"
2442     # Output the field's value, including the final newline (if any).
2443     if $have_associative; then
2444       if eval 'test -n "${modcache_maintainer[$1]+set}"'; then
2445         eval 'echo "${modcache_maintainer[$1]}"'
2446       fi
2447     else
2448       eval "field_set=\"\$${cachevar}_maintainer_set\""
2449       if test -n "$field_set"; then
2450         eval "field_value=\"\$${cachevar}_maintainer\""
2451         echo "${field_value}"
2452       fi
2453     fi
2454   fi
2455 }
2456
2457 # func_get_tests_module module
2458 # Input:
2459 # - local_gnulib_dir  from --local-dir
2460 func_get_tests_module ()
2461 {
2462   # The naming convention for tests modules is hardwired: ${module}-tests.
2463   if test -f "$gnulib_dir/modules/$1"-tests \
2464      || { test -n "$local_gnulib_dir" && test -d "$local_gnulib_dir/modules" \
2465           && test -f "$local_gnulib_dir/modules/$1"-tests; }; then
2466     echo "$1"-tests
2467   fi
2468 }
2469
2470 # func_acceptable module
2471 # tests whether a module is acceptable.
2472 # Input:
2473 # - avoidlist       list of modules to avoid
2474 func_acceptable ()
2475 {
2476   for avoid in $avoidlist; do
2477     if test "$avoid" = "$1"; then
2478       return 1
2479     fi
2480   done
2481   return 0
2482 }
2483
2484 # sed expression to keep the first 32 characters of each line.
2485 sed_first_32_chars='s/^\(................................\).*/\1/'
2486
2487 # func_module_shellfunc_name module
2488 # computes the shell function name that will contain the m4 macros for the module.
2489 # Input:
2490 # - macro_prefix    prefix to use
2491 # Output:
2492 # - shellfunc       shell function name
2493 func_module_shellfunc_name ()
2494 {
2495   case $1 in
2496     *[!a-zA-Z0-9_]*)
2497       shellfunc=func_${macro_prefix}_gnulib_m4code_`echo "$1" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"` ;;
2498     *)
2499       shellfunc=func_${macro_prefix}_gnulib_m4code_$1 ;;
2500   esac
2501 }
2502
2503 # func_module_shellvar_name module
2504 # computes the shell variable name the will be set to true once the m4 macros
2505 # for the module have been executed.
2506 # Output:
2507 # - shellvar        shell variable name
2508 func_module_shellvar_name ()
2509 {
2510   case $1 in
2511     *[!a-zA-Z0-9_]*)
2512       shellvar=${macro_prefix}_gnulib_enabled_`echo "$1" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"` ;;
2513     *)
2514       shellvar=${macro_prefix}_gnulib_enabled_$1 ;;
2515   esac
2516 }
2517
2518 # func_module_conditional_name module
2519 # computes the automake conditional name for the module.
2520 # Output:
2521 # - conditional     name of automake conditional
2522 func_module_conditional_name ()
2523 {
2524   case $1 in
2525     *[!a-zA-Z0-9_]*)
2526       conditional=${macro_prefix}_GNULIB_ENABLED_`echo "$1" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"` ;;
2527     *)
2528       conditional=${macro_prefix}_GNULIB_ENABLED_$1 ;;
2529   esac
2530 }
2531
2532 # func_uncond_add_module B
2533 # notes the presence of B as an unconditional module.
2534 #
2535 # func_conddep_add_module A B cond
2536 # notes the presence of a conditional dependency from module A to module B,
2537 # subject to the condition that A is enabled and cond is true.
2538 #
2539 # func_cond_module_p B
2540 # tests whether module B is conditional.
2541 #
2542 # func_cond_module_condition A B
2543 # returns the condition when B should be enabled as a dependency of A, once the
2544 # m4 code for A has been executed.
2545 # Output: - condition
2546 #
2547 if $have_associative; then
2548   declare -A conddep_isuncond
2549   declare -A conddep_dependers
2550   declare -A conddep_condition
2551   func_uncond_add_module ()
2552   {
2553     eval 'conddep_isuncond[$1]=true'
2554     eval 'unset conddep_dependers[$1]'
2555   }
2556   func_conddep_add_module ()
2557   {
2558     eval 'isuncond="${conddep_isuncond[$2]}"'
2559     if test -z "$isuncond"; then
2560       # No unconditional dependency to B known at this point.
2561       eval 'conddep_dependers[$2]="${conddep_dependers[$2]} $1"'
2562       eval 'conddep_condition[$1---$2]="$3"'
2563     fi
2564   }
2565   func_cond_module_p ()
2566   {
2567     eval 'previous_dependers="${conddep_dependers[$1]}"'
2568     test -n "$previous_dependers"
2569   }
2570   func_cond_module_condition ()
2571   {
2572     eval 'condition="${conddep_condition[$1---$2]}"'
2573   }
2574 else
2575   func_uncond_add_module ()
2576   {
2577     case $1 in
2578       *[!a-zA-Z0-9_]*)
2579         suffix=`echo "$1" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"` ;;
2580       *)
2581         suffix=$1 ;;
2582     esac
2583     eval 'conddep_isuncond_'"$suffix"'=true'
2584     eval 'unset conddep_dependers_'"$suffix"
2585   }
2586   func_conddep_add_module ()
2587   {
2588     case $2 in
2589       *[!a-zA-Z0-9_]*)
2590         suffix=`echo "$2" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"` ;;
2591       *)
2592         suffix=$2 ;;
2593     esac
2594     eval 'isuncond="${conddep_isuncond_'"$suffix"'}"'
2595     if test -z "$isuncond"; then
2596       eval 'conddep_dependers_'"$suffix"'="${conddep_dependers_'"$suffix"'} $1"'
2597       suffix=`echo "$1---$2" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"`
2598       eval 'conddep_condition_'"$suffix"'="$3"'
2599     fi
2600   }
2601   func_cond_module_p ()
2602   {
2603     case $1 in
2604       *[!a-zA-Z0-9_]*)
2605         suffix=`echo "$1" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"` ;;
2606       *)
2607         suffix=$1 ;;
2608     esac
2609     eval 'previous_dependers="${conddep_dependers_'"$suffix"'}"'
2610     test -n "$previous_dependers"
2611   }
2612   func_cond_module_condition ()
2613   {
2614     suffix=`echo "$1---$2" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"`
2615     eval 'condition="${conddep_condition_'"$suffix"'}"'
2616   }
2617 fi
2618
2619 sed_dependencies_without_conditions='s/ *\[.*//'
2620
2621 # func_modules_transitive_closure
2622 # Input:
2623 # - local_gnulib_dir  from --local-dir
2624 # - modcache        true or false, from --cache-modules/--no-cache-modules
2625 # - modules         list of specified modules
2626 # - inctests        true if tests should be included, blank otherwise
2627 # - incobsolete     true if obsolete modules among dependencies should be
2628 #                   included, blank otherwise
2629 # - inc_cxx_tests   true if C++ interoperability tests should be included,
2630 #                   blank otherwise
2631 # - inc_longrunning_tests  true if long-runnings tests should be included,
2632 #                          blank otherwise
2633 # - inc_privileged_tests  true if tests that require root privileges should be
2634 #                         included, blank otherwise
2635 # - inc_unportable_tests  true if tests that fail on some platforms should be
2636 #                         included, blank otherwise
2637 # - inc_all_direct_tests   true if all kinds of problematic unit tests among
2638 #                          the unit tests of the specified modules should be
2639 #                          included, blank otherwise
2640 # - inc_all_indirect_tests   true if all kinds of problematic unit tests among
2641 #                            the unit tests of the dependencies should be
2642 #                            included, blank otherwise
2643 # - excl_cxx_tests   true if C++ interoperability tests should be excluded,
2644 #                    blank otherwise
2645 # - excl_longrunning_tests  true if long-runnings tests should be excluded,
2646 #                           blank otherwise
2647 # - excl_privileged_tests  true if tests that require root privileges should be
2648 #                          excluded, blank otherwise
2649 # - excl_unportable_tests  true if tests that fail on some platforms should be
2650 #                          excluded, blank otherwise
2651 # - avoidlist       list of modules to avoid
2652 # - cond_dependencies  true if conditional dependencies shall be supported,
2653 #                      blank otherwise
2654 # - tmp             pathname of a temporary directory
2655 # Output:
2656 # - modules         list of modules, including dependencies
2657 # - conddep_dependers, conddep_condition  information about conditionally
2658 #                                         enabled modules
2659 func_modules_transitive_closure ()
2660 {
2661   sed_escape_dependency='s|\([/.]\)|\\\1|g'
2662   # In order to process every module only once (for speed), process an "input
2663   # list" of modules, producing an "output list" of modules. During each round,
2664   # more modules can be queued in the input list. Once a module on the input
2665   # list has been processed, it is added to the "handled list", so we can avoid
2666   # to process it again.
2667   handledmodules=
2668   inmodules="$modules"
2669   outmodules=
2670   fmtc_inc_all_tests="$inc_all_direct_tests"
2671   if test "$cond_dependencies" = true; then
2672     for module in $inmodules; do
2673       func_verify_module
2674       if test -n "$module"; then
2675         if func_acceptable $module; then
2676           func_uncond_add_module $module
2677         fi
2678       fi
2679     done
2680   fi
2681   while test -n "$inmodules"; do
2682     inmodules_this_round="$inmodules"
2683     inmodules=                    # Accumulator, queue for next round
2684     for module in $inmodules_this_round; do
2685       func_verify_module
2686       if test -n "$module"; then
2687         if func_acceptable $module; then
2688           func_append outmodules " $module"
2689           if test "$cond_dependencies" = true; then
2690             if func_get_automake_snippet_conditional $module | grep '^if ' > /dev/null; then
2691               # A module whose Makefile.am snippet contains a reference to an
2692               # automake conditional. If we were to use it conditionally, we
2693               # would get an error
2694               #   configure: error: conditional "..." was never defined.
2695               # because automake 1.11.1 does not handle nested conditionals
2696               # correctly. As a workaround, make the module unconditional.
2697               func_uncond_add_module $module
2698             fi
2699             if func_cond_module_p $module; then
2700               conditional=true
2701             else
2702               conditional=false
2703             fi
2704           fi
2705           deps=`func_get_dependencies $module | sed -e "$sed_dependencies_without_conditions"`
2706           # Duplicate dependencies are harmless, but Jim wants a warning.
2707           duplicated_deps=`echo "$deps" | LC_ALL=C sort | LC_ALL=C uniq -d`
2708           if test -n "$duplicated_deps"; then
2709             func_warning "module $module has duplicated dependencies: "`echo $duplicated_deps`
2710           fi
2711           if test -n "$inctests"; then
2712             testsmodule=`func_get_tests_module $module`
2713             if test -n "$testsmodule"; then
2714               deps="$deps $testsmodule"
2715             fi
2716           fi
2717           for dep in $deps; do
2718             # Determine whether to include the dependency or tests module.
2719             inc=true
2720             for word in `func_get_status $dep`; do
2721               case "$word" in
2722                 obsolete)
2723                   test -n "$incobsolete" \
2724                     || inc=false
2725                   ;;
2726                 c++-test)
2727                   test -z "$excl_cxx_tests" \
2728                     || inc=false
2729                   test -n "$fmtc_inc_all_tests" || test -n "$inc_cxx_tests" \
2730                     || inc=false
2731                   ;;
2732                 longrunning-test)
2733                   test -z "$excl_longrunning_tests" \
2734                     || inc=false
2735                   test -n "$fmtc_inc_all_tests" || test -n "$inc_longrunning_tests" \
2736                     || inc=false
2737                   ;;
2738                 privileged-test)
2739                   test -z "$excl_privileged_tests" \
2740                     || inc=false
2741                   test -n "$fmtc_inc_all_tests" || test -n "$inc_privileged_tests" \
2742                     || inc=false
2743                   ;;
2744                 unportable-test)
2745                   test -z "$excl_unportable_tests" \
2746                     || inc=false
2747                   test -n "$fmtc_inc_all_tests" || test -n "$inc_unportable_tests" \
2748                     || inc=false
2749                   ;;
2750                 *-test)
2751                   test -n "$fmtc_inc_all_tests" \
2752                     || inc=false
2753                   ;;
2754               esac
2755             done
2756             if $inc && func_acceptable "$dep"; then
2757               func_append inmodules " $dep"
2758               if test "$cond_dependencies" = true; then
2759                 escaped_dep=`echo "$dep" | sed -e "$sed_escape_dependency"`
2760                 sed_extract_condition1='/^ *'"$escaped_dep"' *$/{
2761                   s/^.*$/true/p
2762                 }'
2763                 sed_extract_condition2='/^ *'"$escaped_dep"' *\[.*\] *$/{
2764                   s/^ *'"$escaped_dep"' *\[\(.*\)\] *$/\1/p
2765                 }'
2766                 condition=`func_get_dependencies $module | sed -n -e "$sed_extract_condition1" -e "$sed_extract_condition2"`
2767                 if test "$condition" = true; then
2768                   condition=
2769                 fi
2770                 if test -n "$condition"; then
2771                   func_conddep_add_module "$module" "$dep" "$condition"
2772                 else
2773                   if $conditional; then
2774                     func_conddep_add_module "$module" "$dep" true
2775                   else
2776                     func_uncond_add_module "$dep"
2777                   fi
2778                 fi
2779               fi
2780             fi
2781           done
2782         fi
2783       fi
2784     done
2785     handledmodules=`for m in $handledmodules $inmodules_this_round; do echo $m; done | LC_ALL=C sort -u`
2786     # Remove $handledmodules from $inmodules.
2787     for m in $inmodules; do echo $m; done | LC_ALL=C sort -u > "$tmp"/queued-modules
2788     inmodules=`echo "$handledmodules" | LC_ALL=C join -v 2 - "$tmp"/queued-modules`
2789     fmtc_inc_all_tests="$inc_all_indirect_tests"
2790   done
2791   modules=`for m in $outmodules; do echo $m; done | LC_ALL=C sort -u`
2792   rm -f "$tmp"/queued-modules
2793 }
2794
2795 # func_show_module_list
2796 # Input:
2797 # - specified_modules  list of specified modules (one per line, sorted)
2798 # - modules         complete list of modules (one per line, sorted)
2799 # - tmp             pathname of a temporary directory
2800 func_show_module_list ()
2801 {
2802   if case "$TERM" in
2803        xterm*) test -t 1;;
2804        *) false;;
2805      esac; then
2806     # Assume xterm compatible escape sequences.
2807     bold_on=`printf '\x1b[1m'`
2808     bold_off=`printf '\x1b[0m'`
2809   else
2810     bold_on=
2811     bold_off=
2812   fi
2813   echo "Module list with included dependencies (indented):"
2814   echo "$specified_modules" | sed -e '/^$/d' -e 's/$/| /' > "$tmp"/specified-modules
2815   echo "$modules" | sed -e '/^$/d' \
2816     | LC_ALL=C join -t '|' -a2 "$tmp"/specified-modules - \
2817     | sed -e 's/^\(.*\)|.*/|\1/' -e 's/^/    /' -e 's/^    |\(.*\)$/  '"${bold_on}"'\1'"${bold_off}"'/'
2818 }
2819
2820 # func_modules_transitive_closure_separately
2821 # Determine main module list and tests-related module list separately.
2822 # The main module list is the transitive closure of the specified modules,
2823 # ignoring tests modules. Its lib/* sources go into $sourcebase/. If --lgpl
2824 # is specified, it will consist only of LGPLed source.
2825 # The tests-related module list is the transitive closure of the specified
2826 # modules, including tests modules, minus the main module list excluding
2827 # modules of applicability 'all'. Its lib/* sources (brought in through
2828 # dependencies of *-tests modules) go into $testsbase/. It may contain GPLed
2829 # source, even if --lgpl is specified.
2830 # Input:
2831 # - local_gnulib_dir  from --local-dir
2832 # - modcache        true or false, from --cache-modules/--no-cache-modules
2833 # - specified_modules  list of specified modules
2834 # - inctests        true if tests should be included, blank otherwise
2835 # - incobsolete     true if obsolete modules among dependencies should be
2836 #                   included, blank otherwise
2837 # - inc_cxx_tests   true if C++ interoperability tests should be included,
2838 #                   blank otherwise
2839 # - inc_longrunning_tests  true if long-runnings tests should be included,
2840 #                          blank otherwise
2841 # - inc_privileged_tests  true if tests that require root privileges should be
2842 #                         included, blank otherwise
2843 # - inc_unportable_tests  true if tests that fail on some platforms should be
2844 #                         included, blank otherwise
2845 # - inc_all_direct_tests   true if all kinds of problematic unit tests among
2846 #                          the unit tests of the specified modules should be
2847 #                          included, blank otherwise
2848 # - inc_all_indirect_tests   true if all kinds of problematic unit tests among
2849 #                            the unit tests of the dependencies should be
2850 #                            included, blank otherwise
2851 # - excl_cxx_tests   true if C++ interoperability tests should be excluded,
2852 #                    blank otherwise
2853 # - excl_longrunning_tests  true if long-runnings tests should be excluded,
2854 #                           blank otherwise
2855 # - excl_privileged_tests  true if tests that require root privileges should be
2856 #                          excluded, blank otherwise
2857 # - excl_unportable_tests  true if tests that fail on some platforms should be
2858 #                          excluded, blank otherwise
2859 # - avoidlist       list of modules to avoid
2860 # - cond_dependencies  true if conditional dependencies shall be supported,
2861 #                      blank otherwise
2862 # - tmp             pathname of a temporary directory
2863 # Output:
2864 # - main_modules    list of modules, including dependencies
2865 # - testsrelated_modules  list of tests-related modules, including dependencies
2866 # - conddep_dependers, conddep_condition  information about conditionally
2867 #                                         enabled modules
2868 func_modules_transitive_closure_separately ()
2869 {
2870   # Determine main module list.
2871   saved_inctests="$inctests"
2872   inctests=""
2873   modules="$specified_modules"
2874   func_modules_transitive_closure
2875   main_modules="$modules"
2876   inctests="$saved_inctests"
2877   if test $verbose -ge 1; then
2878     echo "Main module list:"
2879     echo "$main_modules" | sed -e 's/^/  /'
2880   fi
2881   # Determine tests-related module list.
2882   echo "$final_modules" | LC_ALL=C sort -u > "$tmp"/final-modules
2883   testsrelated_modules=`for module in $main_modules; do
2884                           if test \`func_get_applicability $module\` = main; then
2885                             echo $module
2886                           fi
2887                         done \
2888                         | LC_ALL=C sort -u | LC_ALL=C join -v 2 - "$tmp"/final-modules`
2889   if test $verbose -ge 1; then
2890     echo "Tests-related module list:"
2891     echo "$testsrelated_modules" | sed -e 's/^/  /'
2892   fi
2893 }
2894
2895 # func_determine_use_libtests
2896 # Determines whether a $testsbase/libtests.a is needed.
2897 # Input:
2898 # - local_gnulib_dir  from --local-dir
2899 # - modcache        true or false, from --cache-modules/--no-cache-modules
2900 # - testsrelated_modules  list of tests-related modules, including dependencies
2901 # Output:
2902 # - use_libtests    true if a $testsbase/libtests.a is needed, false otherwise
2903 func_determine_use_libtests ()
2904 {
2905   use_libtests=false
2906   for module in $testsrelated_modules; do
2907     func_verify_nontests_module
2908     if test -n "$module"; then
2909       all_files=`func_get_filelist $module`
2910       # Test whether some file in $all_files lies in lib/.
2911       for f in $all_files; do
2912         case $f in
2913           lib/*)
2914             use_libtests=true
2915             break 2
2916             ;;
2917         esac
2918       done
2919     fi
2920   done
2921 }
2922
2923 # func_modules_add_dummy
2924 # Input:
2925 # - local_gnulib_dir  from --local-dir
2926 # - modcache        true or false, from --cache-modules/--no-cache-modules
2927 # - modules         list of modules, including dependencies
2928 # Output:
2929 # - modules         list of modules, including 'dummy' if needed
2930 func_modules_add_dummy ()
2931 {
2932   # Determine whether any module provides a lib_SOURCES augmentation.
2933   have_lib_SOURCES=
2934   sed_remove_backslash_newline=':a
2935 /\\$/{
2936 s/\\$//
2937 N
2938 s/\n//
2939 ba
2940 }'
2941   for module in $modules; do
2942     func_verify_nontests_module
2943     if test -n "$module"; then
2944       # Extract the value of "lib_SOURCES += ...".
2945       for file in `func_get_automake_snippet "$module" | sed -e "$sed_remove_backslash_newline" | sed -n -e 's,^lib_SOURCES[     ]*+=\([^#]*\).*$,\1,p'`; do
2946         # Ignore .h files since they are not compiled.
2947         case "$file" in
2948           *.h) ;;
2949           *)
2950             have_lib_SOURCES=yes
2951             break 2
2952             ;;
2953         esac
2954       done
2955     fi
2956   done
2957   # Add the dummy module, to make sure the library will be non-empty.
2958   if test -z "$have_lib_SOURCES"; then
2959     if func_acceptable "dummy"; then
2960       func_append modules " dummy"
2961     fi
2962   fi
2963 }
2964
2965 # func_modules_add_dummy_separately
2966 # Input:
2967 # - local_gnulib_dir  from --local-dir
2968 # - modcache        true or false, from --cache-modules/--no-cache-modules
2969 # - main_modules    list of modules, including dependencies
2970 # - testsrelated_modules  list of tests-related modules, including dependencies
2971 # - use_libtests    true if a $testsbase/libtests.a is needed, false otherwise
2972 # Output:
2973 # - main_modules    list of modules, including 'dummy' if needed
2974 # - testsrelated_modules  list of tests-related modules, including 'dummy' if
2975 #                         needed
2976 func_modules_add_dummy_separately ()
2977 {
2978   # Add the dummy module to the main module list if needed.
2979   modules="$main_modules"
2980   func_modules_add_dummy
2981   main_modules="$modules"
2982
2983   # Add the dummy module to the tests-related module list if needed.
2984   if $use_libtests; then
2985     modules="$testsrelated_modules"
2986     func_modules_add_dummy
2987     testsrelated_modules="$modules"
2988   fi
2989 }
2990
2991 # func_modules_notice
2992 # Input:
2993 # - local_gnulib_dir  from --local-dir
2994 # - modcache        true or false, from --cache-modules/--no-cache-modules
2995 # - verbose         integer, default 0, inc/decremented by --verbose/--quiet
2996 # - modules         list of modules, including dependencies
2997 func_modules_notice ()
2998 {
2999   if test $verbose -ge -1; then
3000     for module in $modules; do
3001       func_verify_module
3002       if test -n "$module"; then
3003         msg=`func_get_notice $module`
3004         if test -n "$msg"; then
3005           echo "Notice from module $module:"
3006           echo "$msg" | sed -e 's/^/  /'
3007         fi
3008       fi
3009     done
3010   fi
3011 }
3012
3013 # func_modules_to_filelist
3014 # Input:
3015 # - local_gnulib_dir  from --local-dir
3016 # - modcache        true or false, from --cache-modules/--no-cache-modules
3017 # - modules         list of modules, including dependencies
3018 # Output:
3019 # - files           list of files
3020 func_modules_to_filelist ()
3021 {
3022   files=
3023   for module in $modules; do
3024     func_verify_module
3025     if test -n "$module"; then
3026       fs=`func_get_filelist $module`
3027       func_append files " $fs"
3028     fi
3029   done
3030   files=`for f in $files; do echo $f; done | LC_ALL=C sort -u`
3031 }
3032
3033 # func_modules_to_filelist_separately
3034 # Determine the final file lists.
3035 # They must be computed separately, because files in lib/* go into
3036 # $sourcebase/ if they are in the main file list but into $testsbase/
3037 # if they are in the tests-related file list. Furthermore lib/dummy.c
3038 # can be in both.
3039 # Input:
3040 # - local_gnulib_dir  from --local-dir
3041 # - modcache        true or false, from --cache-modules/--no-cache-modules
3042 # - main_modules    list of modules, including dependencies
3043 # - testsrelated_modules  list of tests-related modules, including dependencies
3044 func_modules_to_filelist_separately ()
3045 {
3046   # Determine final main file list.
3047   modules="$main_modules"
3048   func_modules_to_filelist
3049   main_files="$files"
3050   # Determine final tests-related file list.
3051   modules="$testsrelated_modules"
3052   func_modules_to_filelist
3053   testsrelated_files=`echo "$files" | sed -e 's,^lib/,tests=lib/,'`
3054   # Merge both file lists.
3055   sed_remove_empty_lines='/^$/d'
3056   files=`{ echo "$main_files"; echo "$testsrelated_files"; } | sed -e "$sed_remove_empty_lines" | LC_ALL=C sort -u`
3057   if test $verbose -ge 0; then
3058     echo "File list:"
3059     sed_prettyprint_files='s,^tests=lib/\(.*\)$,lib/\1 -> tests/\1,'
3060     echo "$files" | sed -e "$sed_prettyprint_files" -e 's/^/  /'
3061   fi
3062 }
3063
3064 # func_compute_include_guard_prefix
3065 # Determine include_guard_prefix.
3066 # Input:
3067 # - macro_prefix    prefix of gl_LIBOBJS macros to use
3068 # Output:
3069 # - include_guard_prefix  replacement for ${gl_include_guard_prefix}
3070 # - sed_replace_include_guard_prefix
3071 #                   sed expression for resolving ${gl_include_guard_prefix}
3072 func_compute_include_guard_prefix ()
3073 {
3074   if test "$macro_prefix" = gl; then
3075     include_guard_prefix='GL'
3076   else
3077     include_guard_prefix='GL_'`echo "$macro_prefix" | LC_ALL=C tr '[a-z]' '[A-Z]'`
3078   fi
3079   sed_replace_include_guard_prefix='s/\${gl_include_guard_prefix}/'"${include_guard_prefix}"'/g'
3080 }
3081
3082 # func_execute_command command [args...]
3083 # Executes a command.
3084 # Uses also the variables
3085 # - verbose         integer, default 0, inc/decremented by --verbose/--quiet
3086 func_execute_command ()
3087 {
3088   if test $verbose -ge 0; then
3089     echo "executing $*"
3090     "$@"
3091   else
3092     # Commands like automake produce output to stderr even when they succeed.
3093     # Turn this output off if the command succeeds.
3094     "$@" > "$tmp"/cmdout 2>&1
3095     cmdret=$?
3096     if test $cmdret = 0; then
3097       rm -f "$tmp"/cmdout
3098     else
3099       echo "executing $*"
3100       cat "$tmp"/cmdout 1>&2
3101       rm -f "$tmp"/cmdout
3102       (exit $cmdret)
3103     fi
3104   fi
3105 }
3106
3107 # func_dest_tmpfilename file
3108 # determines the name of a temporary file (file is relative to destdir).
3109 # Input:
3110 # - destdir         target directory
3111 # - doit            : if actions shall be executed, false if only to be printed
3112 # - tmp             pathname of a temporary directory
3113 # Sets variable:
3114 #   - tmpfile       absolute filename of the temporary file
3115 func_dest_tmpfilename ()
3116 {
3117   if $doit; then
3118     # Put the new contents of $file in a file in the same directory (needed
3119     # to guarantee that an 'mv' to "$destdir/$file" works).
3120     tmpfile="$destdir/$1.tmp"
3121   else
3122     # Put the new contents of $file in a file in a temporary directory
3123     # (because the directory of "$file" might not exist).
3124     tmpfile="$tmp"/`basename "$1"`.tmp
3125   fi
3126 }
3127
3128 # func_add_file
3129 # copies a file from gnulib into the destination directory. The destination
3130 # is known to not exist.
3131 # Input:
3132 # - destdir         target directory
3133 # - local_gnulib_dir  from --local-dir
3134 # - modcache        true or false, from --cache-modules/--no-cache-modules
3135 # - f               the original file name
3136 # - lookedup_file   name of the merged (combined) file
3137 # - lookedup_tmp    true if it is located in the tmp directory, blank otherwise
3138 # - g               the rewritten file name
3139 # - tmpfile         absolute filename of the temporary file
3140 # - doit            : if actions shall be executed, false if only to be printed
3141 # - symbolic        true if files should be symlinked, copied otherwise
3142 # - lsymbolic       true if files from local_gnulib_dir should be symlinked,
3143 #                   copied otherwise
3144 func_add_file ()
3145 {
3146   if $doit; then
3147     echo "Copying file $g"
3148     if { test -n "$symbolic" \
3149          || { test -n "$lsymbolic" \
3150               && test "$lookedup_file" = "$local_gnulib_dir/$f"; }; } \
3151        && test -z "$lookedup_tmp" \
3152        && cmp "$lookedup_file" "$tmpfile" > /dev/null; then
3153       func_ln_if_changed "$lookedup_file" "$destdir/$g"
3154     else
3155       mv -f "$tmpfile" "$destdir/${g}" || func_fatal_error "failed"
3156     fi
3157   else
3158     echo "Copy file $g"
3159   fi
3160 }
3161
3162 # func_update_file
3163 # copies a file from gnulib into the destination directory. The destination
3164 # is known to exist.
3165 # Input:
3166 # - destdir         target directory
3167 # - local_gnulib_dir  from --local-dir
3168 # - modcache        true or false, from --cache-modules/--no-cache-modules
3169 # - f               the original file name
3170 # - lookedup_file   name of the merged (combined) file
3171 # - lookedup_tmp    true if it is located in the tmp directory, blank otherwise
3172 # - g               the rewritten file name
3173 # - tmpfile         absolute filename of the temporary file
3174 # - doit            : if actions shall be executed, false if only to be printed
3175 # - symbolic        true if files should be symlinked, copied otherwise
3176 # - lsymbolic       true if files from local_gnulib_dir should be symlinked,
3177 #                   copied otherwise
3178 # - already_present  nonempty if the file should already exist, empty otherwise
3179 func_update_file ()
3180 {
3181   if cmp "$destdir/$g" "$tmpfile" > /dev/null; then
3182     : # The file has not changed.
3183   else
3184     # Replace the file.
3185     if $doit; then
3186       if test -n "$already_present"; then
3187         echo "Updating file $g (backup in ${g}~)"
3188       else
3189         echo "Replacing file $g (non-gnulib code backed up in ${g}~) !!"
3190       fi
3191       mv -f "$destdir/$g" "$destdir/${g}~" || func_fatal_error "failed"
3192       if { test -n "$symbolic" \
3193            || { test -n "$lsymbolic" \
3194                 && test "$lookedup_file" = "$local_gnulib_dir/$f"; }; } \
3195          && test -z "$lookedup_tmp" \
3196          && cmp "$lookedup_file" "$tmpfile" > /dev/null; then
3197         func_ln_if_changed "$lookedup_file" "$destdir/$g"
3198       else
3199         mv -f "$tmpfile" "$destdir/${g}" || func_fatal_error "failed"
3200       fi
3201     else
3202       if test -n "$already_present"; then
3203         echo "Update file $g (backup in ${g}~)"
3204       else
3205         echo "Replace file $g (non-gnulib code backed up in ${g}~) !!"
3206       fi
3207     fi
3208   fi
3209 }
3210
3211 # func_emit_lib_Makefile_am
3212 # emits the contents of library makefile to standard output.
3213 # Input:
3214 # - local_gnulib_dir  from --local-dir
3215 # - modcache        true or false, from --cache-modules/--no-cache-modules
3216 # - modules         list of modules, including dependencies
3217 # - libname         library name
3218 # - pobase          directory relative to destdir where to place *.po files
3219 # - auxdir          directory relative to destdir where to place build aux files
3220 # - makefile_name   from --makefile-name
3221 # - libtool         true if libtool will be used, false or blank otherwise
3222 # - macro_prefix    prefix of gl_LIBOBJS macros to use
3223 # - po_domain       prefix of i18n domain to use (without -gnulib suffix)
3224 # - witness_c_macro  from --witness-c-macro
3225 # - actioncmd       (optional) command that will reproduce this invocation
3226 # - for_test        true if creating a package for testing, false otherwise
3227 # - sed_replace_include_guard_prefix
3228 #                   sed expression for resolving ${gl_include_guard_prefix}
3229 # - destfile        filename relative to destdir of makefile being generated
3230 # Input/Output:
3231 # - makefile_am_edits and makefile_am_edit${edit}_{dir,var,val}
3232 #                   list of edits to be done to Makefile.am variables
3233 # Output:
3234 # - uses_subdirs    nonempty if object files in subdirs exist
3235 func_emit_lib_Makefile_am ()
3236 {
3237   # When creating an includable Makefile.am snippet, augment variables with
3238   # += instead of assigning them.
3239   if test -n "$makefile_name"; then
3240     assign='+='
3241   else
3242     assign='='
3243   fi
3244   if test "$libtool" = true; then
3245     libext=la
3246     perhapsLT=LT
3247     sed_eliminate_LDFLAGS="$sed_noop"
3248   else
3249     libext=a
3250     perhapsLT=
3251     sed_eliminate_LDFLAGS='/^lib_LDFLAGS[        ]*+=/d'
3252   fi
3253   if $for_test; then
3254     # When creating a package for testing: Attempt to provoke failures,
3255     # especially link errors, already during "make" rather than during
3256     # "make check", because "make check" is not possible in a cross-compiling
3257     # situation. Turn check_PROGRAMS into noinst_PROGRAMS.
3258     sed_transform_check_PROGRAMS='s,check_PROGRAMS,noinst_PROGRAMS,g'
3259   else
3260     sed_transform_check_PROGRAMS="$sed_noop"
3261   fi
3262   echo "## DO NOT EDIT! GENERATED AUTOMATICALLY!"
3263   echo "## Process this file with automake to produce Makefile.in."
3264   func_emit_copyright_notice
3265   if test -n "$actioncmd"; then
3266     # The maximum line length (excluding the terminating newline) of any file
3267     # that is to be preprocessed by config.status is 3070.  config.status uses
3268     # awk, and the HP-UX 11.00 awk fails if a line has length >= 3071;
3269     # similarly, the IRIX 6.5 awk fails if a line has length >= 3072.
3270     len=`echo "$actioncmd" | wc -c`
3271     if test -n "$len" && test "$len" -le 3000; then
3272       echo "# Reproduce by: $actioncmd"
3273     fi
3274   fi
3275   echo
3276   uses_subdirs=
3277   {
3278     for module in $modules; do
3279       func_verify_nontests_module
3280       if test -n "$module"; then
3281         {
3282           func_get_automake_snippet_conditional "$module" |
3283             LC_ALL=C \
3284             sed -e 's,lib_LIBRARIES,lib%_LIBRARIES,g' \
3285                 -e 's,lib_LTLIBRARIES,lib%_LTLIBRARIES,g' \
3286                 -e "$sed_eliminate_LDFLAGS" \
3287                 -e 's,lib_\([A-Z][A-Z]*\),'"${libname}_${libext}"'_\1,g' \
3288                 -e 's,lib%_LIBRARIES,lib_LIBRARIES,g' \
3289                 -e 's,lib%_LTLIBRARIES,lib_LTLIBRARIES,g' \
3290                 -e "$sed_transform_check_PROGRAMS" \
3291                 -e "$sed_replace_include_guard_prefix"
3292           if test "$module" = 'alloca'; then
3293             echo "${libname}_${libext}_LIBADD += @${perhapsLT}ALLOCA@"
3294             echo "${libname}_${libext}_DEPENDENCIES += @${perhapsLT}ALLOCA@"
3295           fi
3296         } > "$tmp"/amsnippet1
3297         {
3298           func_get_automake_snippet_unconditional "$module" |
3299             LC_ALL=C sed -e 's,lib_\([A-Z][A-Z]*\),'"${libname}_${libext}"'_\1,g'
3300         } > "$tmp"/amsnippet2
3301         # Skip the contents if it's entirely empty.
3302         if grep '[^      ]' "$tmp"/amsnippet1 "$tmp"/amsnippet2 > /dev/null ; then
3303           echo "## begin gnulib module $module"
3304           echo
3305           if test "$cond_dependencies" = true; then
3306             if func_cond_module_p "$module"; then
3307               func_module_conditional_name "$module"
3308               echo "if $conditional"
3309             fi
3310           fi
3311           cat "$tmp"/amsnippet1
3312           if test "$cond_dependencies" = true; then
3313             if func_cond_module_p "$module"; then
3314               echo "endif"
3315             fi
3316           fi
3317           cat "$tmp"/amsnippet2
3318           echo "## end   gnulib module $module"
3319           echo
3320         fi
3321         rm -f "$tmp"/amsnippet1 "$tmp"/amsnippet2
3322         # Test whether there are some source files in subdirectories.
3323         for f in `func_get_filelist "$module"`; do
3324           case $f in
3325             lib/*/*.c)
3326               uses_subdirs=yes
3327               break
3328               ;;
3329           esac
3330         done
3331       fi
3332     done
3333   } > "$tmp"/allsnippets
3334   if test -z "$makefile_name"; then
3335     # If there are source files in subdirectories, prevent collision of the
3336     # object files (example: hash.c and libxml/hash.c).
3337     subdir_options=
3338     if test -n "$uses_subdirs"; then
3339       subdir_options=' subdir-objects'
3340     fi
3341     echo "AUTOMAKE_OPTIONS = 1.5 gnits${subdir_options}"
3342   fi
3343   echo
3344   if test -z "$makefile_name"; then
3345     echo "SUBDIRS ="
3346     echo "noinst_HEADERS ="
3347     echo "noinst_LIBRARIES ="
3348     echo "noinst_LTLIBRARIES ="
3349     # Automake versions < 1.9b create an empty pkgdatadir at installation time
3350     # if you specify pkgdata_DATA to empty. This is a workaround.
3351     if grep '^pkgdata_DATA *+=' "$tmp"/allsnippets > /dev/null; then
3352       echo "pkgdata_DATA ="
3353     fi
3354     echo "EXTRA_DIST ="
3355     echo "BUILT_SOURCES ="
3356     echo "SUFFIXES ="
3357   fi
3358   echo "MOSTLYCLEANFILES $assign core *.stackdump"
3359   if test -z "$makefile_name"; then
3360     echo "MOSTLYCLEANDIRS ="
3361     echo "CLEANFILES ="
3362     echo "DISTCLEANFILES ="
3363     echo "MAINTAINERCLEANFILES ="
3364   fi
3365   # Execute edits that apply to the Makefile.am being generated.
3366   edit=0
3367   while test $edit != $makefile_am_edits; do
3368     edit=`expr $edit + 1`
3369     eval dir=\"\$makefile_am_edit${edit}_dir\"
3370     eval var=\"\$makefile_am_edit${edit}_var\"
3371     eval val=\"\$makefile_am_edit${edit}_val\"
3372     if test -n "$var"; then
3373       if test "${dir}Makefile.am" = "$destfile" || test "./${dir}Makefile.am" = "$destfile"; then
3374         echo "${var} += ${val}"
3375         eval "makefile_am_edit${edit}_var="
3376       fi
3377     fi
3378   done
3379   if test -n "$witness_c_macro"; then
3380     cppflags_part1=" -D$witness_c_macro=1"
3381   else
3382     cppflags_part1=
3383   fi
3384   if $for_test; then
3385     cppflags_part2=" -DGNULIB_STRICT_CHECKING=1"
3386   else
3387     cppflags_part2=
3388   fi
3389   if test -z "$makefile_name"; then
3390     echo
3391     echo "AM_CPPFLAGS =$cppflags_part1$cppflags_part2"
3392     echo "AM_CFLAGS ="
3393   else
3394     if test -n "$cppflags_part1$cppflags_part2"; then
3395       echo
3396       echo "AM_CPPFLAGS +=$cppflags_part1$cppflags_part2"
3397     fi
3398   fi
3399   echo
3400   if LC_ALL=C grep "^[a-zA-Z0-9_]*_${perhapsLT}LIBRARIES *+\{0,1\}= *$libname\\.$libext\$" "$tmp"/allsnippets > /dev/null \
3401      || { test -n "$makefile_name" \
3402           && test -f "$sourcebase/Makefile.am" \
3403           && LC_ALL=C grep "^[a-zA-Z0-9_]*_${perhapsLT}LIBRARIES *+\{0,1\}= *$libname\\.$libext\$" "$sourcebase/Makefile.am" > /dev/null; \
3404         }; then
3405     # One of the snippets or the user's Makefile.am already specifies an
3406     # installation location for the library. Don't confuse automake by saying
3407     # it should not be installed.
3408     :
3409   else
3410     # By default, the generated library should not be installed.
3411     echo "noinst_${perhapsLT}LIBRARIES += $libname.$libext"
3412   fi
3413   echo
3414   echo "${libname}_${libext}_SOURCES ="
3415   # Here we use $(LIBOBJS), not @LIBOBJS@. The value is the same. However,
3416   # automake during its analysis looks for $(LIBOBJS), not for @LIBOBJS@.
3417   echo "${libname}_${libext}_LIBADD = \$(${macro_prefix}_${perhapsLT}LIBOBJS)"
3418   echo "${libname}_${libext}_DEPENDENCIES = \$(${macro_prefix}_${perhapsLT}LIBOBJS)"
3419   echo "EXTRA_${libname}_${libext}_SOURCES ="
3420   if test "$libtool" = true; then
3421     echo "${libname}_${libext}_LDFLAGS = \$(AM_LDFLAGS)"
3422     echo "${libname}_${libext}_LDFLAGS += -no-undefined"
3423     # Synthesize an ${libname}_${libext}_LDFLAGS augmentation by combining
3424     # the link dependencies of all modules.
3425     for module in $modules; do
3426       func_verify_nontests_module
3427       if test -n "$module"; then
3428         func_get_link_directive "$module"
3429       fi
3430     done \
3431       | LC_ALL=C sed -e '/^$/d' -e 's/ when linking with libtool.*//' \
3432       | LC_ALL=C sort -u \
3433       | LC_ALL=C sed -e 's/^/'"${libname}_${libext}"'_LDFLAGS += /'
3434   fi
3435   echo
3436   if test -n "$pobase"; then
3437     echo "AM_CPPFLAGS += -DDEFAULT_TEXT_DOMAIN=\\\"${po_domain}-gnulib\\\""
3438     echo
3439   fi
3440   cat "$tmp"/allsnippets \
3441     | sed -e 's|\$(top_srcdir)/build-aux/|$(top_srcdir)/'"$auxdir"'/|g'
3442   echo
3443   echo "mostlyclean-local: mostlyclean-generic"
3444   echo "        @for dir in '' \$(MOSTLYCLEANDIRS); do \\"
3445   echo "          if test -n \"\$\$dir\" && test -d \$\$dir; then \\"
3446   echo "            echo \"rmdir \$\$dir\"; rmdir \$\$dir; \\"
3447   echo "          fi; \\"
3448   echo "        done; \\"
3449   echo "        :"
3450   rm -f "$tmp"/allsnippets
3451 }
3452
3453 # func_emit_po_Makevars
3454 # emits the contents of po/ makefile parameterization to standard output.
3455 # Input:
3456 # - local_gnulib_dir  from --local-dir
3457 # - modcache        true or false, from --cache-modules/--no-cache-modules
3458 # - sourcebase      directory relative to destdir where to place source code
3459 # - pobase          directory relative to destdir where to place *.po files
3460 # - po_domain       prefix of i18n domain to use (without -gnulib suffix)
3461 func_emit_po_Makevars ()
3462 {
3463   echo "## DO NOT EDIT! GENERATED AUTOMATICALLY!"
3464   func_emit_copyright_notice
3465   echo
3466   echo "# Usually the message domain is the same as the package name."
3467   echo "# But here it has a '-gnulib' suffix."
3468   echo "DOMAIN = ${po_domain}-gnulib"
3469   echo
3470   echo "# These two variables depend on the location of this directory."
3471   echo "subdir = ${pobase}"
3472   echo "top_builddir = "`echo "$pobase" | sed -e 's,//*,/,g' -e 's,[^/][^/]*,..,g'`
3473   echo
3474   cat <<\EOF
3475 # These options get passed to xgettext.
3476 XGETTEXT_OPTIONS = \
3477   --keyword=_ --flag=_:1:pass-c-format \
3478   --keyword=N_ --flag=N_:1:pass-c-format \
3479   --keyword='proper_name:1,"This is a proper name. See the gettext manual, section Names."' \
3480   --keyword='proper_name_utf8:1,"This is a proper name. See the gettext manual, section Names."' \
3481   --flag=error:3:c-format --flag=error_at_line:5:c-format
3482
3483 # This is the copyright holder that gets inserted into the header of the
3484 # $(DOMAIN).pot file.  gnulib is copyrighted by the FSF.
3485 COPYRIGHT_HOLDER = Free Software Foundation, Inc.
3486
3487 # This is the email address or URL to which the translators shall report
3488 # bugs in the untranslated strings:
3489 # - Strings which are not entire sentences, see the maintainer guidelines
3490 #   in the GNU gettext documentation, section 'Preparing Strings'.
3491 # - Strings which use unclear terms or require additional context to be
3492 #   understood.
3493 # - Strings which make invalid assumptions about notation of date, time or
3494 #   money.
3495 # - Pluralisation problems.
3496 # - Incorrect English spelling.
3497 # - Incorrect formatting.
3498 # It can be your email address, or a mailing list address where translators
3499 # can write to without being subscribed, or the URL of a web page through
3500 # which the translators can contact you.
3501 MSGID_BUGS_ADDRESS = bug-gnulib@gnu.org
3502
3503 # This is the list of locale categories, beyond LC_MESSAGES, for which the
3504 # message catalogs shall be used.  It is usually empty.
3505 EXTRA_LOCALE_CATEGORIES =
3506
3507 # This tells whether the $(DOMAIN).pot file contains messages with an 'msgctxt'
3508 # context.  Possible values are "yes" and "no".  Set this to yes if the
3509 # package uses functions taking also a message context, like pgettext(), or
3510 # if in $(XGETTEXT_OPTIONS) you define keywords with a context argument.
3511 USE_MSGCTXT = no
3512 EOF
3513 }
3514
3515 # func_emit_po_POTFILES_in
3516 # emits the file list to be passed to xgettext to standard output.
3517 # Input:
3518 # - local_gnulib_dir  from --local-dir
3519 # - modcache        true or false, from --cache-modules/--no-cache-modules
3520 # - sourcebase      directory relative to destdir where to place source code
3521 # - files           list of new files
3522 func_emit_po_POTFILES_in ()
3523 {
3524   echo "## DO NOT EDIT! GENERATED AUTOMATICALLY!"
3525   func_emit_copyright_notice
3526   echo
3527   echo "# List of files which contain translatable strings."
3528   echo "$files" | sed -n -e "s,^lib/,$sourcebase/,p"
3529 }
3530
3531 # func_emit_tests_Makefile_am witness_macro
3532 # emits the contents of tests makefile to standard output.
3533 # Input:
3534 # - local_gnulib_dir  from --local-dir
3535 # - modcache        true or false, from --cache-modules/--no-cache-modules
3536 # - modules         list of modules, including dependencies
3537 # - libname         library name
3538 # - auxdir          directory relative to destdir where to place build aux files
3539 # - makefile_name   from --makefile-name
3540 # - libtool         true if libtool will be used, false or blank otherwise
3541 # - sourcebase      relative directory containing lib source code
3542 # - m4base          relative directory containing autoconf macros
3543 # - testsbase       relative directory containing unit test code
3544 # - macro_prefix    prefix of gl_LIBOBJS macros to use
3545 # - witness_c_macro  from --witness-c-macro
3546 # - for_test        true if creating a package for testing, false otherwise
3547 # - single_configure  true if a single configure file should be generated,
3548 #                     false for a separate configure file for the tests
3549 # - use_libtests    true if a libtests.a should be built, false otherwise
3550 # - sed_replace_include_guard_prefix
3551 #                   sed expression for resolving ${gl_include_guard_prefix}
3552 # - destfile        filename relative to destdir of makefile being generated
3553 # Input/Output:
3554 # - makefile_am_edits and makefile_am_edit${edit}_{dir,var,val}
3555 #                   list of edits to be done to Makefile.am variables
3556 # Output:
3557 # - uses_subdirs    nonempty if object files in subdirs exist
3558 func_emit_tests_Makefile_am ()
3559 {
3560   witness_macro="$1"
3561   if test "$libtool" = true; then
3562     libext=la
3563     sed_eliminate_LDFLAGS="$sed_noop"
3564   else
3565     libext=a
3566     sed_eliminate_LDFLAGS='/^lib_LDFLAGS[        ]*+=/d'
3567   fi
3568   if $for_test; then
3569     # When creating a package for testing: Attempt to provoke failures,
3570     # especially link errors, already during "make" rather than during
3571     # "make check", because "make check" is not possible in a cross-compiling
3572     # situation. Turn check_PROGRAMS into noinst_PROGRAMS.
3573     sed_transform_check_PROGRAMS='s,check_PROGRAMS,noinst_PROGRAMS,g'
3574   else
3575     sed_transform_check_PROGRAMS="$sed_noop"
3576   fi
3577   testsbase_inverse=`echo "$testsbase" | sed -e 's,/$,,' | sed -e 's,[^/][^/]*,..,g'`
3578   echo "## DO NOT EDIT! GENERATED AUTOMATICALLY!"
3579   echo "## Process this file with automake to produce Makefile.in."
3580   func_emit_copyright_notice
3581   echo
3582   uses_subdirs=
3583   {
3584     for module in $modules; do
3585       if $for_test && ! $single_configure; then
3586         func_verify_tests_module
3587       else
3588         func_verify_module
3589       fi
3590       if test -n "$module"; then
3591         {
3592           func_get_automake_snippet "$module" |
3593             LC_ALL=C \
3594             sed -e 's,lib_LIBRARIES,lib%_LIBRARIES,g' \
3595                 -e 's,lib_LTLIBRARIES,lib%_LTLIBRARIES,g' \
3596                 -e "$sed_eliminate_LDFLAGS" \
3597                 -e 's,lib_\([A-Z][A-Z]*\),libtests_a_\1,g' \
3598                 -e 's,lib%_LIBRARIES,lib_LIBRARIES,g' \
3599                 -e 's,lib%_LTLIBRARIES,lib_LTLIBRARIES,g' \
3600                 -e "$sed_transform_check_PROGRAMS" \
3601                 -e "$sed_replace_include_guard_prefix"
3602           if $use_libtests && test "$module" = 'alloca'; then
3603             echo "libtests_a_LIBADD += @${perhapsLT}ALLOCA@"
3604             echo "libtests_a_DEPENDENCIES += @${perhapsLT}ALLOCA@"
3605           fi
3606         } > "$tmp"/amsnippet
3607         # Skip the contents if it's entirely empty.
3608         if grep '[^      ]' "$tmp"/amsnippet > /dev/null ; then
3609           # Mention long-running tests at the end.
3610           ofd=3
3611           for word in `func_get_status "$module"`; do
3612             if test "$word" = 'longrunning-test'; then
3613               ofd=4
3614               break
3615             fi
3616           done
3617           { echo "## begin gnulib module $module"
3618             echo
3619             cat "$tmp"/amsnippet
3620             echo "## end   gnulib module $module"
3621             echo
3622           } >&$ofd
3623         fi
3624         rm -f "$tmp"/amsnippet
3625         # Test whether there are some source files in subdirectories.
3626         for f in `func_get_filelist "$module"`; do
3627           case $f in
3628             lib/*/*.c | tests/*/*.c)
3629               uses_subdirs=yes
3630               break
3631               ;;
3632           esac
3633         done
3634       fi
3635     done
3636   } 3> "$tmp"/main_snippets 4> "$tmp"/longrunning_snippets
3637   # Generate dependencies here, since it eases the debugging of test failures.
3638   # If there are source files in subdirectories, prevent collision of the
3639   # object files (example: hash.c and libxml/hash.c).
3640   subdir_options=
3641   if test -n "$uses_subdirs"; then
3642     subdir_options=' subdir-objects'
3643   fi
3644   echo "AUTOMAKE_OPTIONS = 1.5 foreign${subdir_options}"
3645   echo
3646   if $for_test && ! $single_configure; then
3647     echo "ACLOCAL_AMFLAGS = -I ${testsbase_inverse}/${m4base}"
3648     echo
3649   fi
3650   # Nothing is being added to SUBDIRS; nevertheless the existence of this
3651   # variable is needed to avoid an error from automake:
3652   #   "AM_GNU_GETTEXT used but SUBDIRS not defined"
3653   echo "SUBDIRS = ."
3654   echo "TESTS ="
3655   echo "XFAIL_TESTS ="
3656   echo "TESTS_ENVIRONMENT ="
3657   echo "noinst_PROGRAMS ="
3658   if ! $for_test; then
3659     echo "check_PROGRAMS ="
3660   fi
3661   echo "noinst_HEADERS ="
3662   echo "noinst_LIBRARIES ="
3663   if $use_libtests; then
3664     if $for_test; then
3665       echo "noinst_LIBRARIES += libtests.a"
3666     else
3667       echo "check_LIBRARIES = libtests.a"
3668     fi
3669   fi
3670   # Automake versions < 1.9b create an empty pkgdatadir at installation time
3671   # if you specify pkgdata_DATA to empty. This is a workaround.
3672   if grep '^pkgdata_DATA *+=' "$tmp"/main_snippets "$tmp"/longrunning_snippets > /dev/null; then
3673     echo "pkgdata_DATA ="
3674   fi
3675   echo "EXTRA_DIST ="
3676   echo "BUILT_SOURCES ="
3677   echo "SUFFIXES ="
3678   echo "MOSTLYCLEANFILES = core *.stackdump"
3679   echo "MOSTLYCLEANDIRS ="
3680   echo "CLEANFILES ="
3681   echo "DISTCLEANFILES ="
3682   echo "MAINTAINERCLEANFILES ="
3683   # Execute edits that apply to the Makefile.am being generated.
3684   edit=0
3685   while test $edit != $makefile_am_edits; do
3686     edit=`expr $edit + 1`
3687     eval dir=\"\$makefile_am_edit${edit}_dir\"
3688     eval var=\"\$makefile_am_edit${edit}_var\"
3689     eval val=\"\$makefile_am_edit${edit}_val\"
3690     if test -n "$var"; then
3691       if test "${dir}Makefile.am" = "$destfile" || test "./${dir}Makefile.am" = "$destfile"; then
3692         echo "${var} += ${val}"
3693         eval "makefile_am_edit${edit}_var="
3694       fi
3695     fi
3696   done
3697   echo
3698   echo "AM_CPPFLAGS = \\"
3699   if $for_test; then
3700     echo "  -DGNULIB_STRICT_CHECKING=1 \\"
3701   fi
3702   if test -n "$witness_c_macro"; then
3703     echo "  -D$witness_c_macro=1 \\"
3704   fi
3705   if test -n "${witness_macro}"; then
3706     echo "  -D@${witness_macro}@=1 \\"
3707   fi
3708   echo "  -I. -I\$(srcdir) \\"
3709   echo "  -I${testsbase_inverse} -I\$(srcdir)/${testsbase_inverse} \\"
3710   echo "  -I${testsbase_inverse}/${sourcebase-lib} -I\$(srcdir)/${testsbase_inverse}/${sourcebase-lib}"
3711   echo
3712   local_ldadd_before=''
3713   local_ldadd_after=''
3714   if $use_libtests; then
3715     # All test programs need to be linked with libtests.a.
3716     # It needs to be passed to the linker before ${libname}.${libext}, since
3717     # the tests-related modules depend on the main modules.
3718     # It also needs to be passed to the linker after ${libname}.${libext}
3719     # because the latter might contain incomplete modules (such as the 'error'
3720     # module whose dependency to 'progname' is voluntarily omitted).
3721     # The LIBTESTS_LIBDEPS can be passed to the linker once or twice, it does
3722     # not matter.
3723     local_ldadd_before=' libtests.a'
3724     local_ldadd_after=' libtests.a $(LIBTESTS_LIBDEPS)'
3725   fi
3726   echo "LDADD =${local_ldadd_before} ${testsbase_inverse}/${sourcebase-lib}/${libname}.${libext}${local_ldadd_after}"
3727   echo
3728   if $use_libtests; then
3729     echo "libtests_a_SOURCES ="
3730     # Here we use $(LIBOBJS), not @LIBOBJS@. The value is the same. However,
3731     # automake during its analysis looks for $(LIBOBJS), not for @LIBOBJS@.
3732     echo "libtests_a_LIBADD = \$(${macro_prefix}tests_LIBOBJS)"
3733     echo "libtests_a_DEPENDENCIES = \$(${macro_prefix}tests_LIBOBJS)"
3734     echo "EXTRA_libtests_a_SOURCES ="
3735     # The circular dependency in LDADD requires this.
3736     echo "AM_LIBTOOLFLAGS = --preserve-dup-deps"
3737     echo
3738   fi
3739   # Many test scripts use ${EXEEXT} or ${srcdir}.
3740   # EXEEXT is defined by AC_PROG_CC through autoconf.
3741   # srcdir is defined by autoconf and automake.
3742   echo "TESTS_ENVIRONMENT += EXEEXT='@EXEEXT@' srcdir='\$(srcdir)'"
3743   echo
3744   cat "$tmp"/main_snippets "$tmp"/longrunning_snippets \
3745     | sed -e 's|\$(top_srcdir)/build-aux/|$(top_srcdir)/'"$auxdir"'/|g'
3746   echo "# Clean up after Solaris cc."
3747   echo "clean-local:"
3748   echo "        rm -rf SunWS_cache"
3749   echo
3750   echo "mostlyclean-local: mostlyclean-generic"
3751   echo "        @for dir in '' \$(MOSTLYCLEANDIRS); do \\"
3752   echo "          if test -n \"\$\$dir\" && test -d \$\$dir; then \\"
3753   echo "            echo \"rmdir \$\$dir\"; rmdir \$\$dir; \\"
3754   echo "          fi; \\"
3755   echo "        done; \\"
3756   echo "        :"
3757   rm -f "$tmp"/main_snippets "$tmp"/longrunning_snippets
3758 }
3759
3760 # func_emit_initmacro_start macro_prefix
3761 # emits the first few statements of the gl_INIT macro to standard output.
3762 # - macro_prefix    prefix of gl_EARLY, gl_INIT macros to use
3763 func_emit_initmacro_start ()
3764 {
3765   macro_prefix_arg="$1"
3766   # Overriding AC_LIBOBJ and AC_REPLACE_FUNCS has the effect of storing
3767   # platform-dependent object files in ${macro_prefix_arg}_LIBOBJS instead of
3768   # LIBOBJS.  The purpose is to allow several gnulib instantiations under
3769   # a single configure.ac file.  (AC_CONFIG_LIBOBJ_DIR does not allow this
3770   # flexibility.)
3771   # Furthermore it avoids an automake error like this when a Makefile.am
3772   # that uses pieces of gnulib also uses $(LIBOBJ):
3773   #   automatically discovered file `error.c' should not be explicitly mentioned
3774   echo "  m4_pushdef([AC_LIBOBJ], m4_defn([${macro_prefix_arg}_LIBOBJ]))"
3775   echo "  m4_pushdef([AC_REPLACE_FUNCS], m4_defn([${macro_prefix_arg}_REPLACE_FUNCS]))"
3776   # Overriding AC_LIBSOURCES has the same purpose of avoiding the automake
3777   # error when a Makefile.am that uses pieces of gnulib also uses $(LIBOBJ):
3778   #   automatically discovered file `error.c' should not be explicitly mentioned
3779   # We let automake know about the files to be distributed through the
3780   # EXTRA_lib_SOURCES variable.
3781   echo "  m4_pushdef([AC_LIBSOURCES], m4_defn([${macro_prefix_arg}_LIBSOURCES]))"
3782   # Create data variables for checking the presence of files that are mentioned
3783   # as AC_LIBSOURCES arguments. These are m4 variables, not shell variables,
3784   # because we want the check to happen when the configure file is created,
3785   # not when it is run. ${macro_prefix_arg}_LIBSOURCES_LIST is the list of
3786   # files to check for. ${macro_prefix_arg}_LIBSOURCES_DIR is the subdirectory
3787   # in which to expect them.
3788   echo "  m4_pushdef([${macro_prefix_arg}_LIBSOURCES_LIST], [])"
3789   echo "  m4_pushdef([${macro_prefix_arg}_LIBSOURCES_DIR], [])"
3790   echo "  gl_COMMON"
3791 }
3792
3793 # func_emit_initmacro_end macro_prefix
3794 # emits the last few statements of the gl_INIT macro to standard output.
3795 # - macro_prefix    prefix of gl_EARLY, gl_INIT macros to use
3796 func_emit_initmacro_end ()
3797 {
3798   macro_prefix_arg="$1"
3799   # Check the presence of files that are mentioned as AC_LIBSOURCES arguments.
3800   # The check is performed only when autoconf is run from the directory where
3801   # the configure.ac resides; if it is run from a different directory, the
3802   # check is skipped.
3803   echo "  m4_ifval(${macro_prefix_arg}_LIBSOURCES_LIST, ["
3804   echo "    m4_syscmd([test ! -d ]m4_defn([${macro_prefix_arg}_LIBSOURCES_DIR])[ ||"
3805   echo "      for gl_file in ]${macro_prefix_arg}_LIBSOURCES_LIST[ ; do"
3806   echo "        if test ! -r ]m4_defn([${macro_prefix_arg}_LIBSOURCES_DIR])[/\$gl_file ; then"
3807   echo "          echo \"missing file ]m4_defn([${macro_prefix_arg}_LIBSOURCES_DIR])[/\$gl_file\" >&2"
3808   echo "          exit 1"
3809   echo "        fi"
3810   echo "      done])dnl"
3811   echo "      m4_if(m4_sysval, [0], [],"
3812   echo "        [AC_FATAL([expected source file, required through AC_LIBSOURCES, not found])])"
3813   echo "  ])"
3814   echo "  m4_popdef([${macro_prefix_arg}_LIBSOURCES_DIR])"
3815   echo "  m4_popdef([${macro_prefix_arg}_LIBSOURCES_LIST])"
3816   echo "  m4_popdef([AC_LIBSOURCES])"
3817   echo "  m4_popdef([AC_REPLACE_FUNCS])"
3818   echo "  m4_popdef([AC_LIBOBJ])"
3819   echo "  AC_CONFIG_COMMANDS_PRE(["
3820   echo "    ${macro_prefix_arg}_libobjs="
3821   echo "    ${macro_prefix_arg}_ltlibobjs="
3822   echo "    if test -n \"\$${macro_prefix_arg}_LIBOBJS\"; then"
3823   echo "      # Remove the extension."
3824   echo "      sed_drop_objext='s/\\.o\$//;s/\\.obj\$//'"
3825   echo "      for i in \`for i in \$${macro_prefix_arg}_LIBOBJS; do echo \"\$i\"; done | sed -e \"\$sed_drop_objext\" | sort | uniq\`; do"
3826   echo "        ${macro_prefix_arg}_libobjs=\"\$${macro_prefix_arg}_libobjs \$i.\$ac_objext\""
3827   echo "        ${macro_prefix_arg}_ltlibobjs=\"\$${macro_prefix_arg}_ltlibobjs \$i.lo\""
3828   echo "      done"
3829   echo "    fi"
3830   echo "    AC_SUBST([${macro_prefix_arg}_LIBOBJS], [\$${macro_prefix_arg}_libobjs])"
3831   echo "    AC_SUBST([${macro_prefix_arg}_LTLIBOBJS], [\$${macro_prefix_arg}_ltlibobjs])"
3832   echo "  ])"
3833 }
3834
3835 # func_emit_initmacro_done macro_prefix sourcebase
3836 # emits a few statements after the gl_INIT macro to standard output.
3837 # - macro_prefix    prefix of gl_EARLY, gl_INIT macros to use
3838 # - sourcebase      directory relative to destdir where to place source code
3839 func_emit_initmacro_done ()
3840 {
3841   macro_prefix_arg="$1"
3842   sourcebase_arg="$2"
3843   echo
3844   echo "# Like AC_LIBOBJ, except that the module name goes"
3845   echo "# into ${macro_prefix_arg}_LIBOBJS instead of into LIBOBJS."
3846   echo "AC_DEFUN([${macro_prefix_arg}_LIBOBJ], ["
3847   echo "  AS_LITERAL_IF([\$1], [${macro_prefix_arg}_LIBSOURCES([\$1.c])])dnl"
3848   echo "  ${macro_prefix_arg}_LIBOBJS=\"\$${macro_prefix_arg}_LIBOBJS \$1.\$ac_objext\""
3849   echo "])"
3850   echo
3851   echo "# Like AC_REPLACE_FUNCS, except that the module name goes"
3852   echo "# into ${macro_prefix_arg}_LIBOBJS instead of into LIBOBJS."
3853   echo "AC_DEFUN([${macro_prefix_arg}_REPLACE_FUNCS], ["
3854   echo "  m4_foreach_w([gl_NAME], [\$1], [AC_LIBSOURCES(gl_NAME[.c])])dnl"
3855   echo "  AC_CHECK_FUNCS([\$1], , [${macro_prefix_arg}_LIBOBJ(\$ac_func)])"
3856   echo "])"
3857   echo
3858   echo "# Like AC_LIBSOURCES, except the directory where the source file is"
3859   echo "# expected is derived from the gnulib-tool parameterization,"
3860   echo "# and alloca is special cased (for the alloca-opt module)."
3861   echo "# We could also entirely rely on EXTRA_lib..._SOURCES."
3862   echo "AC_DEFUN([${macro_prefix_arg}_LIBSOURCES], ["
3863   echo "  m4_foreach([_gl_NAME], [\$1], ["
3864   echo "    m4_if(_gl_NAME, [alloca.c], [], ["
3865   echo "      m4_define([${macro_prefix_arg}_LIBSOURCES_DIR], [$sourcebase_arg])"
3866   echo "      m4_append([${macro_prefix_arg}_LIBSOURCES_LIST], _gl_NAME, [ ])"
3867   echo "    ])"
3868   echo "  ])"
3869   echo "])"
3870 }
3871
3872 # func_emit_autoconf_snippet indentation
3873 # emits the autoconf snippet of a module.
3874 # Input:
3875 # - local_gnulib_dir  from --local-dir
3876 # - modcache          true or false, from --cache-modules/--no-cache-modules
3877 # - sed_replace_build_aux  sed expression that replaces reference to build-aux
3878 # - sed_replace_include_guard_prefix
3879 #                     sed expression for resolving ${gl_include_guard_prefix}
3880 # - module            the module name
3881 # - toplevel          true or false. 'false' means a subordinate use of
3882 #                     gnulib-tool.
3883 # - disable_libtool   true or false. It tells whether to disable libtool
3884 #                     handling even if it has been specified through the
3885 #                     command line options.
3886 # - disable_gettext   true or false. It tells whether to disable AM_GNU_GETTEXT
3887 #                     invocations.
3888 # - indentation       spaces to prepend on each line
3889 func_emit_autoconf_snippet ()
3890 {
3891   if { case $module in
3892          gnumakefile | maintainer-makefile)
3893            # These modules are meant to be used only in the top-level directory.
3894            $toplevel ;;
3895          *)
3896            true ;;
3897        esac
3898      }; then
3899     func_get_autoconf_snippet "$module" \
3900       | sed -e '/^$/d;' -e "s/^/$indentation/" \
3901             -e "$sed_replace_build_aux" \
3902             -e "$sed_replace_include_guard_prefix" \
3903       | { if $disable_libtool; then
3904             sed -e 's/\$gl_cond_libtool/false/g' \
3905                 -e 's/gl_libdeps/gltests_libdeps/g' \
3906                 -e 's/gl_ltlibdeps/gltests_ltlibdeps/g'
3907           else
3908             cat
3909           fi
3910         } \
3911       | { if $disable_gettext; then
3912             sed -e 's/AM_GNU_GETTEXT(\[external\])/dnl you must add AM_GNU_GETTEXT([external]) or similar to configure.ac./'
3913           else
3914             cat
3915           fi
3916         }
3917     if test "$module" = 'alloca' && test "$libtool" = true && ! $disable_libtool; then
3918       echo 'changequote(,)dnl'
3919       echo 'LTALLOCA=`echo "$ALLOCA" | sed -e '"'"'s/\.[^.]* /.lo /g;s/\.[^.]*$/.lo/'"'"'`'
3920       echo 'changequote([, ])dnl'
3921       echo 'AC_SUBST([LTALLOCA])'
3922     fi
3923   fi
3924 }
3925
3926 # func_emit_autoconf_snippets modules verifier toplevel disable_libtool disable_gettext
3927 # collects and emit the autoconf snippets of a set of modules.
3928 # Input:
3929 # - local_gnulib_dir  from --local-dir
3930 # - modcache          true or false, from --cache-modules/--no-cache-modules
3931 # - sed_replace_build_aux  sed expression that replaces reference to build-aux
3932 # - sed_replace_include_guard_prefix
3933 #                     sed expression for resolving ${gl_include_guard_prefix}
3934 # - modules           the list of modules.
3935 # - verifier          one of func_verify_module, func_verify_nontests_module,
3936 #                     func_verify_tests_module. It selects the subset of
3937 #                     $modules to consider.
3938 # - toplevel          true or false. 'false' means a subordinate use of
3939 #                     gnulib-tool.
3940 # - disable_libtool   true or false. It tells whether to disable libtool
3941 #                     handling even if it has been specified through the
3942 #                     command line options.
3943 # - disable_gettext   true or false. It tells whether to disable AM_GNU_GETTEXT
3944 #                     invocations.
3945 func_emit_autoconf_snippets ()
3946 {
3947   verifier="$2"
3948   toplevel="$3"
3949   disable_libtool="$4"
3950   disable_gettext="$5"
3951   if test "$cond_dependencies" = true; then
3952     for m in $modules; do echo $m; done | LC_ALL=C sort -u > "$tmp"/modules
3953     # Emit the autoconf code for the unconditional modules.
3954     for module in $1; do
3955       eval $verifier
3956       if test -n "$module"; then
3957         if func_cond_module_p "$module"; then
3958           :
3959         else
3960           func_emit_autoconf_snippet "  "
3961         fi
3962       fi
3963     done
3964     # Initialize the shell variables indicating that the modules are enabled.
3965     for module in $1; do
3966       eval $verifier
3967       if test -n "$module"; then
3968         if func_cond_module_p "$module"; then
3969           func_module_shellvar_name "$module"
3970           echo "  $shellvar=false"
3971         fi
3972       fi
3973     done
3974     # Emit the autoconf code for the conditional modules, each in a separate
3975     # function. This makes it possible to support cycles among conditional
3976     # modules.
3977     for module in $1; do
3978       eval $verifier
3979       if test -n "$module"; then
3980         if func_cond_module_p "$module"; then
3981           func_module_shellfunc_name "$module"
3982           func_module_shellvar_name "$module"
3983           echo "  $shellfunc ()"
3984           echo '  {'
3985           echo "    if ! \$$shellvar; then"
3986           func_emit_autoconf_snippet "      "
3987           echo "      $shellvar=true"
3988           deps=`func_get_dependencies $module | sed -e "$sed_dependencies_without_conditions"`
3989           # Intersect $deps with the modules list $1.
3990           deps=`for m in $deps; do echo $m; done | LC_ALL=C sort -u | LC_ALL=C join - "$tmp"/modules`
3991           for dep in $deps; do
3992             if func_cond_module_p "$dep"; then
3993               func_module_shellfunc_name "$dep"
3994               func_cond_module_condition "$module" "$dep"
3995               if test "$condition" != true; then
3996                 echo "      if $condition; then"
3997                 echo "        $shellfunc"
3998                 echo '      fi'
3999               else
4000                 echo "      $shellfunc"
4001               fi
4002             else
4003               # The autoconf code for $dep has already been emitted above and
4004               # therefore is already executed when this function is run.
4005               :
4006             fi
4007           done
4008           echo '    fi'
4009           echo '  }'
4010         fi
4011       fi
4012     done
4013     # Emit the dependencies from the unconditional to the conditional modules.
4014     for module in $1; do
4015       eval $verifier
4016       if test -n "$module"; then
4017         if func_cond_module_p "$module"; then
4018           :
4019         else
4020           deps=`func_get_dependencies $module | sed -e "$sed_dependencies_without_conditions"`
4021           # Intersect $deps with the modules list $1.
4022           deps=`for m in $deps; do echo $m; done | LC_ALL=C sort -u | LC_ALL=C join - "$tmp"/modules`
4023           for dep in $deps; do
4024             if func_cond_module_p "$dep"; then
4025               func_module_shellfunc_name "$dep"
4026               func_cond_module_condition "$module" "$dep"
4027               if test "$condition" != true; then
4028                 echo "  if $condition; then"
4029                 echo "    $shellfunc"
4030                 echo '  fi'
4031               else
4032                 echo "  $shellfunc"
4033               fi
4034             else
4035               # The autoconf code for $dep has already been emitted above and
4036               # therefore is already executed when this code is run.
4037               :
4038             fi
4039           done
4040         fi
4041       fi
4042     done
4043     # Define the Automake conditionals.
4044     echo "  m4_pattern_allow([^${macro_prefix}_GNULIB_ENABLED_])"
4045     for module in $1; do
4046       eval $verifier
4047       if test -n "$module"; then
4048         if func_cond_module_p "$module"; then
4049           func_module_conditional_name "$module"
4050           func_module_shellvar_name "$module"
4051           echo "  AM_CONDITIONAL([$conditional], [\$$shellvar])"
4052         fi
4053       fi
4054     done
4055   else
4056     # Ignore the conditions, and enable all modules unconditionally.
4057     for module in $1; do
4058       eval $verifier
4059       if test -n "$module"; then
4060         func_emit_autoconf_snippet "  "
4061       fi
4062     done
4063   fi
4064 }
4065
4066 # func_import modules
4067 # Uses also the variables
4068 # - mode            import or add-import or remove-import or update
4069 # - destdir         target directory
4070 # - local_gnulib_dir  from --local-dir
4071 # - modcache        true or false, from --cache-modules/--no-cache-modules
4072 # - verbose         integer, default 0, inc/decremented by --verbose/--quiet
4073 # - libname         library name
4074 # - supplied_libname  true if --lib was given, blank otherwise
4075 # - sourcebase      directory relative to destdir where to place source code
4076 # - m4base          directory relative to destdir where to place *.m4 macros
4077 # - pobase          directory relative to destdir where to place *.po files
4078 # - docbase         directory relative to destdir where to place doc files
4079 # - testsbase       directory relative to destdir where to place unit test code
4080 # - auxdir          directory relative to destdir where to place build aux files
4081 # - inctests        true if --with-tests was given, blank otherwise
4082 # - incobsolete     true if --with-obsolete was given, blank otherwise
4083 # - inc_cxx_tests   true if --with-c++-tests was given, blank otherwise
4084 # - inc_longrunning_tests  true if --with-longrunning-tests was given, blank
4085 #                          otherwise
4086 # - inc_privileged_tests  true if --with-privileged-tests was given, blank
4087 #                         otherwise
4088 # - inc_unportable_tests  true if --with-unportable-tests was given, blank
4089 #                         otherwise
4090 # - inc_all_tests   true if --with-all-tests was given, blank otherwise
4091 # - avoidlist       list of modules to avoid, from --avoid
4092 # - cond_dependencies  true if --conditional-dependencies was given, false if
4093 #                      --no-conditional-dependencies was given, blank otherwise
4094 # - lgpl            yes or a number if library's license shall be LGPL,
4095 #                   blank otherwise
4096 # - makefile_name   from --makefile-name
4097 # - libtool         true if --libtool was given, false if --no-libtool was
4098 #                   given, blank otherwise
4099 # - guessed_libtool true if the configure.ac file uses libtool, false otherwise
4100 # - macro_prefix    prefix of gl_EARLY, gl_INIT macros to use
4101 # - po_domain       prefix of i18n domain to use (without -gnulib suffix)
4102 # - witness_c_macro  from --witness-c-macro
4103 # - vc_files        true if --vc-files was given, false if --no-vc-files was
4104 #                   given, blank otherwise
4105 # - autoconf_minversion  minimum supported autoconf version
4106 # - doit            : if actions shall be executed, false if only to be printed
4107 # - symbolic        true if files should be symlinked, copied otherwise
4108 # - lsymbolic       true if files from local_gnulib_dir should be symlinked,
4109 #                   copied otherwise
4110 # - do_copyrights   true if copyright notices in files should be replaced,
4111 #                   blank otherwise
4112 func_import ()
4113 {
4114   # Get the cached settings.
4115   # In 'import' mode, we read them only for the purpose of knowing the old
4116   # installed file list, and don't use them as defaults.
4117   cached_local_gnulib_dir=
4118   cached_specified_modules=
4119   cached_incobsolete=
4120   cached_inc_cxx_tests=
4121   cached_inc_longrunning_tests=
4122   cached_inc_privileged_tests=
4123   cached_inc_unportable_tests=
4124   cached_inc_all_tests=
4125   cached_avoidlist=
4126   cached_sourcebase=
4127   cached_m4base=
4128   cached_pobase=
4129   cached_docbase=
4130   cached_testsbase=
4131   cached_inctests=
4132   cached_libname=
4133   cached_lgpl=
4134   cached_makefile_name=
4135   cached_cond_dependencies=
4136   cached_libtool=
4137   cached_macro_prefix=
4138   cached_po_domain=
4139   cached_witness_c_macro=
4140   cached_vc_files=
4141   cached_files=
4142   if test -f "$destdir"/$m4base/gnulib-cache.m4; then
4143     cached_libtool=false
4144     my_sed_traces='
4145       s,#.*$,,
4146       s,^dnl .*$,,
4147       s, dnl .*$,,
4148       /gl_LOCAL_DIR(/ {
4149         s,^.*gl_LOCAL_DIR([[ ]*\([^]"$`\\)]*\).*$,cached_local_gnulib_dir="\1",p
4150       }
4151       /gl_MODULES(/ {
4152         ta
4153         :a
4154           s/)/)/
4155           tb
4156           N
4157           ba
4158         :b
4159         s,^.*gl_MODULES([[ ]*\([^]"$`\\)]*\).*$,cached_specified_modules="\1",p
4160       }
4161       /gl_WITH_OBSOLETE/ {
4162         s,^.*$,cached_incobsolete=true,p
4163       }
4164       /gl_WITH_CXX_TESTS/ {
4165         s,^.*$,cached_inc_cxx_tests=true,p
4166       }
4167       /gl_WITH_LONGRUNNING_TESTS/ {
4168         s,^.*$,cached_inc_longrunning_tests=true,p
4169       }
4170       /gl_WITH_PRIVILEGED_TESTS/ {
4171         s,^.*$,cached_inc_privileged_tests=true,p
4172       }
4173       /gl_WITH_UNPORTABLE_TESTS/ {
4174         s,^.*$,cached_inc_unportable_tests=true,p
4175       }
4176       /gl_WITH_ALL_TESTS/ {
4177         s,^.*$,cached_inc_all_tests=true,p
4178       }
4179       /gl_AVOID(/ {
4180         s,^.*gl_AVOID([[ ]*\([^]"$`\\)]*\).*$,cached_avoidlist="\1",p
4181       }
4182       /gl_SOURCE_BASE(/ {
4183         s,^.*gl_SOURCE_BASE([[ ]*\([^]"$`\\)]*\).*$,cached_sourcebase="\1",p
4184       }
4185       /gl_M4_BASE(/ {
4186         s,^.*gl_M4_BASE([[ ]*\([^]"$`\\)]*\).*$,cached_m4base="\1",p
4187       }
4188       /gl_PO_BASE(/ {
4189         s,^.*gl_PO_BASE([[ ]*\([^]"$`\\)]*\).*$,cached_pobase="\1",p
4190       }
4191       /gl_DOC_BASE(/ {
4192         s,^.*gl_DOC_BASE([[ ]*\([^]"$`\\)]*\).*$,cached_docbase="\1",p
4193       }
4194       /gl_TESTS_BASE(/ {
4195         s,^.*gl_TESTS_BASE([[ ]*\([^]"$`\\)]*\).*$,cached_testsbase="\1",p
4196       }
4197       /gl_WITH_TESTS/ {
4198         s,^.*$,cached_inctests=true,p
4199       }
4200       /gl_LIB(/ {
4201         s,^.*gl_LIB([[ ]*\([^]"$`\\)]*\).*$,cached_libname="\1",p
4202       }
4203       /gl_LGPL(/ {
4204         s,^.*gl_LGPL([[ ]*\([^]"$`\\)]*\).*$,cached_lgpl="\1",p
4205       }
4206       /gl_LGPL/ {
4207         s,^.*$,cached_lgpl=yes,p
4208       }
4209       /gl_MAKEFILE_NAME(/ {
4210         s,^.*gl_MAKEFILE_NAME([[ ]*\([^]"$`\\)]*\).*$,cached_makefile_name="\1",p
4211       }
4212       /gl_CONDITIONAL_DEPENDENCIES/ {
4213         s,^.*$,cached_cond_dependencies=true,p
4214       }
4215       /gl_LIBTOOL/ {
4216         s,^.*$,cached_libtool=true,p
4217       }
4218       /gl_MACRO_PREFIX(/ {
4219         s,^.*gl_MACRO_PREFIX([[ ]*\([^]"$`\\)]*\).*$,cached_macro_prefix="\1",p
4220       }
4221       /gl_PO_DOMAIN(/ {
4222         s,^.*gl_PO_DOMAIN([[ ]*\([^]"$`\\)]*\).*$,cached_po_domain="\1",p
4223       }
4224       /gl_WITNESS_C_MACRO(/ {
4225         s,^.*gl_WITNESS_C_MACRO([[ ]*\([^]"$`\\)]*\).*$,cached_witness_c_macro="\1",p
4226       }
4227       /gl_VC_FILES(/ {
4228         s,^.*gl_VC_FILES([[ ]*\([^]"$`\\)]*\).*$,cached_vc_files="\1",p
4229       }'
4230     eval `sed -n -e "$my_sed_traces" < "$destdir"/$m4base/gnulib-cache.m4`
4231     if test -f "$destdir"/$m4base/gnulib-comp.m4; then
4232       my_sed_traces='
4233         s,#.*$,,
4234         s,^dnl .*$,,
4235         s, dnl .*$,,
4236         /AC_DEFUN(\['"${cached_macro_prefix}"'_FILE_LIST\], \[/ {
4237           s,^.*$,cached_files=",p
4238           n
4239           ta
4240           :a
4241           s,^\]).*$,",
4242           tb
4243           s,["$`\\],,g
4244           p
4245           n
4246           ba
4247           :b
4248           p
4249         }'
4250       eval `sed -n -e "$my_sed_traces" < "$destdir"/$m4base/gnulib-comp.m4`
4251     fi
4252   fi
4253
4254   if test "$mode" = import; then
4255     # In 'import' mode, the new set of specified modules overrides the cached
4256     # set of modules. Ignore the cached settings.
4257     specified_modules="$1"
4258   else
4259     # Merge the cached settings with the specified ones.
4260     # The m4base must be the same as expected from the pathname.
4261     if test -n "$cached_m4base" && test "$cached_m4base" != "$m4base"; then
4262       func_fatal_error "$m4base/gnulib-cache.m4 is expected to contain gl_M4_BASE([$m4base])"
4263     fi
4264     # The local_gnulib_dir defaults to the cached one. Recall that the cached one
4265     # is relative to $destdir, whereas the one we use is relative to . or absolute.
4266     if test -z "$local_gnulib_dir"; then
4267       if test -n "$cached_local_gnulib_dir"; then
4268         case "$destdir" in
4269           /*)
4270             local_gnulib_dir="$destdir/$cached_local_gnulib_dir" ;;
4271           *)
4272             case "$cached_local_gnulib_dir" in
4273               /*)
4274                 local_gnulib_dir="$destdir/$cached_local_gnulib_dir" ;;
4275               *)
4276                 func_relconcat "$destdir" "$cached_local_gnulib_dir"
4277                 local_gnulib_dir="$relconcat" ;;
4278             esac ;;
4279         esac
4280       fi
4281     fi
4282     case $mode in
4283       add-import)
4284         # Append the cached and the specified module names. So that
4285         # "gnulib-tool --add-import foo" means to add the module foo.
4286         specified_modules="$cached_specified_modules $1"
4287         ;;
4288       remove-import)
4289         # Take the cached module names, minus the specified module names.
4290         specified_modules=
4291         if $have_associative; then
4292           # Use an associative array, for O(N) worst-case run time.
4293           declare -A to_remove
4294           for m in $1; do
4295             eval 'to_remove[$m]=yes'
4296           done
4297           for module in $cached_specified_modules; do
4298             if eval 'test -z "${to_remove[$module]}"'; then
4299               func_append specified_modules "$module "
4300             fi
4301           done
4302         else
4303           # This loop has O(N²) worst-case run time.
4304           for module in $cached_specified_modules; do
4305             to_remove=
4306             for m in $1; do
4307               if test "$m" = "$module"; then
4308                 to_remove=yes
4309                 break
4310               fi
4311             done
4312             if test -z "$to_remove"; then
4313               func_append specified_modules "$module "
4314             fi
4315           done
4316         fi
4317         ;;
4318       update)
4319         # Take the cached module names. There are no specified module names.
4320         specified_modules="$cached_specified_modules"
4321         ;;
4322     esac
4323     # Included obsolete modules among the dependencies if specified either way.
4324     if test -z "$incobsolete"; then
4325       incobsolete="$cached_incobsolete"
4326     fi
4327     # Included special kinds of tests modules among the dependencies if specified
4328     # either way.
4329     if test -z "$inc_cxx_tests"; then
4330       inc_cxx_tests="$cached_inc_cxx_tests"
4331     fi
4332     if test -z "$inc_longrunning_tests"; then
4333       inc_longrunning_tests="$cached_inc_longrunning_tests"
4334     fi
4335     if test -z "$inc_privileged_tests"; then
4336       inc_privileged_tests="$cached_inc_privileged_tests"
4337     fi
4338     if test -z "$inc_unportable_tests"; then
4339       inc_unportable_tests="$cached_inc_unportable_tests"
4340     fi
4341     if test -z "$inc_all_tests"; then
4342       inc_all_tests="$cached_inc_all_tests"
4343     fi
4344     # Append the cached and the specified avoidlist. This is probably better
4345     # than dropping the cached one when --avoid is specified at least once.
4346     avoidlist=`for m in $cached_avoidlist $avoidlist; do echo $m; done | LC_ALL=C sort -u`
4347     avoidlist=`echo $avoidlist`
4348
4349     # The sourcebase defaults to the cached one.
4350     if test -z "$sourcebase"; then
4351       sourcebase="$cached_sourcebase"
4352       if test -z "$sourcebase"; then
4353         func_fatal_error "missing --source-base option"
4354       fi
4355     fi
4356     # The pobase defaults to the cached one.
4357     if test -z "$pobase"; then
4358       pobase="$cached_pobase"
4359     fi
4360     # The docbase defaults to the cached one.
4361     if test -z "$docbase"; then
4362       docbase="$cached_docbase"
4363       if test -z "$docbase"; then
4364         func_fatal_error "missing --doc-base option. --doc-base has been introduced on 2006-07-11; if your last invocation of 'gnulib-tool --import' is before that date, you need to run 'gnulib-tool --import' once, with a --doc-base option."
4365       fi
4366     fi
4367     # The testsbase defaults to the cached one.
4368     if test -z "$testsbase"; then
4369       testsbase="$cached_testsbase"
4370       if test -z "$testsbase"; then
4371         func_fatal_error "missing --tests-base option"
4372       fi
4373     fi
4374     # Require the tests if specified either way.
4375     if test -z "$inctests"; then
4376       inctests="$cached_inctests"
4377     fi
4378     # The libname defaults to the cached one.
4379     if test -z "$supplied_libname"; then
4380       libname="$cached_libname"
4381       if test -z "$libname"; then
4382         func_fatal_error "missing --lib option"
4383       fi
4384     fi
4385     # Require LGPL if specified either way.
4386     if test -z "$lgpl"; then
4387       lgpl="$cached_lgpl"
4388     fi
4389     # The makefile_name defaults to the cached one.
4390     if test -z "$makefile_name"; then
4391       makefile_name="$cached_makefile_name"
4392     fi
4393     # Use conditional dependencies if specified either way.
4394     if test -z "$cond_dependencies"; then
4395       cond_dependencies="$cached_cond_dependencies"
4396     fi
4397     # Use libtool if specified either way, or if guessed.
4398     if test -z "$libtool"; then
4399       if test -n "$cached_m4base"; then
4400         libtool="$cached_libtool"
4401       else
4402         libtool="$guessed_libtool"
4403       fi
4404     fi
4405     # The macro_prefix defaults to the cached one.
4406     if test -z "$macro_prefix"; then
4407       macro_prefix="$cached_macro_prefix"
4408       if test -z "$macro_prefix"; then
4409         func_fatal_error "missing --macro-prefix option"
4410       fi
4411     fi
4412     # The po_domain defaults to the cached one.
4413     if test -z "$po_domain"; then
4414       po_domain="$cached_po_domain"
4415     fi
4416     # The witness_c_macro defaults to the cached one.
4417     if test -z "$witness_c_macro"; then
4418       witness_c_macro="$cached_witness_c_macro"
4419     fi
4420     # The vc_files defaults to the cached one.
4421     if test -z "$vc_files"; then
4422       vc_files="$cached_vc_files"
4423     fi
4424     # Ensure constraints.
4425     if test "$cond_dependencies" = true && test -n "$inctests"; then
4426       echo "gnulib-tool: option --conditional-dependencies is not supported with --with-tests" 1>&2
4427       func_exit 1
4428     fi
4429   fi
4430   # --without-*-tests options are not supported here.
4431   excl_cxx_tests=
4432   excl_longrunning_tests=
4433   excl_privileged_tests=
4434   excl_unportable_tests=
4435
4436   # Canonicalize the list of specified modules.
4437   specified_modules=`for m in $specified_modules; do echo $m; done | LC_ALL=C sort -u`
4438
4439   # Include all kinds of tests modules if --with-all-tests was specified.
4440   inc_all_direct_tests="$inc_all_tests"
4441   inc_all_indirect_tests="$inc_all_tests"
4442
4443   # Determine final module list.
4444   modules="$specified_modules"
4445   func_modules_transitive_closure
4446   if test $verbose -ge 0; then
4447     func_show_module_list
4448   fi
4449   final_modules="$modules"
4450
4451   # Determine main module list and tests-related module list separately.
4452   func_modules_transitive_closure_separately
4453
4454   # Determine whether a $testsbase/libtests.a is needed.
4455   func_determine_use_libtests
4456
4457   # Add the dummy module to the main module list or to the tests-related module
4458   # list if needed.
4459   func_modules_add_dummy_separately
4460
4461   # If --lgpl, verify that the licenses of modules are compatible.
4462   if test -n "$lgpl"; then
4463     license_incompatibilities=
4464     for module in $main_modules; do
4465       license=`func_get_license $module`
4466       case $license in
4467         'GPLed build tool') ;;
4468         'public domain' | 'unlimited' | 'unmodifiable license text') ;;
4469         *)
4470           case "$lgpl" in
4471             yes | 3)
4472               case $license in
4473                 LGPL | LGPLv2+ | LGPLv3+) ;;
4474                 *) func_append license_incompatibilities "$module $license$nl" ;;
4475               esac
4476               ;;
4477             2)
4478               case $license in
4479                 LGPLv2+) ;;
4480                 *) func_append license_incompatibilities "$module $license$nl" ;;
4481               esac
4482               ;;
4483             *) func_fatal_error "invalid value lgpl=$lgpl" ;;
4484           esac
4485           ;;
4486       esac
4487     done
4488     if test -n "$license_incompatibilities"; then
4489       # Format the license incompatibilities as a table.
4490       sed_expand_column1_width50_indent17='s,^\([^ ]*\) ,\1                                                   ,
4491 s,^\(.................................................[^ ]*\) *,                 \1 ,'
4492       license_incompatibilities=`echo "$license_incompatibilities" | sed -e "$sed_expand_column1_width50_indent17"`
4493       func_fatal_error "incompatible license on modules:$nl$license_incompatibilities"
4494     fi
4495   fi
4496
4497   # Show banner notice of every module.
4498   modules="$main_modules"
4499   func_modules_notice
4500
4501   # Determine script to apply to imported library files.
4502   sed_transform_lib_file=
4503   for module in $main_modules; do
4504     if test $module = config-h; then
4505       # Assume config.h exists, and that -DHAVE_CONFIG_H is omitted.
4506       sed_transform_lib_file=$sed_transform_lib_file'
4507         s/^#ifdef[       ]*HAVE_CONFIG_H[        ]*$/#if 1/
4508       '
4509       break
4510     fi
4511   done
4512   sed_transform_main_lib_file="$sed_transform_lib_file"
4513   if test -n "$do_copyrights"; then
4514     if test -n "$lgpl"; then
4515       # Update license.
4516       case "$lgpl" in
4517         yes | 3)
4518           sed_transform_main_lib_file=$sed_transform_main_lib_file'
4519             s/GNU General/GNU Lesser General/g
4520             s/General Public License/Lesser General Public License/g
4521             s/Lesser Lesser General Public License/Lesser General Public License/g
4522           '
4523           ;;
4524         2)
4525           sed_transform_main_lib_file=$sed_transform_main_lib_file'
4526             s/GNU General/GNU Lesser General/g
4527             s/General Public License/Lesser General Public License/g
4528             s/Lesser Lesser General Public License/Lesser General Public License/g
4529
4530             s/version [23]\([ ,]\)/version 2.1\1/g
4531           '
4532           ;;
4533         *) func_fatal_error "invalid value lgpl=$lgpl" ;;
4534       esac
4535     else
4536       # Update license.
4537       sed_transform_main_lib_file=$sed_transform_main_lib_file'
4538         s/GNU Lesser General/GNU General/g
4539         s/Lesser General Public License/General Public License/g
4540
4541         s/GNU Library General/GNU General/g
4542         s/Library General Public License/General Public License/g
4543
4544         s/version 2\(.1\)\{0,1\}\([ ,]\)/version 3\2/g
4545       '
4546     fi
4547   fi
4548
4549   # Determine script to apply to auxiliary files that go into $auxdir/.
4550   sed_transform_build_aux_file=
4551   if test -n "$do_copyrights"; then
4552     # Update license.
4553     sed_transform_build_aux_file=$sed_transform_build_aux_file'
4554       s/GNU Lesser General/GNU General/g
4555       s/Lesser General Public License/General Public License/g
4556
4557       s/GNU Library General/GNU General/g
4558       s/Library General Public License/General Public License/g
4559
4560       s/version 2\(.1\)\{0,1\}\([ ,]\)/version 3\2/g
4561     '
4562   fi
4563
4564   # Determine script to apply to library files that go into $testsbase/.
4565   sed_transform_testsrelated_lib_file="$sed_transform_lib_file"
4566   if test -n "$do_copyrights"; then
4567     # Update license.
4568     sed_transform_testsrelated_lib_file=$sed_transform_testsrelated_lib_file'
4569       s/GNU Lesser General/GNU General/g
4570       s/Lesser General Public License/General Public License/g
4571
4572       s/GNU Library General/GNU General/g
4573       s/Library General Public License/General Public License/g
4574
4575       s/version 2\(.1\)\{0,1\}\([ ,]\)/version 3\2/g
4576     '
4577   fi
4578
4579   # Determine the final file lists.
4580   func_modules_to_filelist_separately
4581
4582   test -n "$files" \
4583     || func_fatal_error "refusing to do nothing"
4584
4585   # Add m4/gnulib-tool.m4 to the file list. It is not part of any module.
4586   new_files="$files m4/gnulib-tool.m4"
4587   old_files="$cached_files"
4588   if test -f "$destdir"/$m4base/gnulib-tool.m4; then
4589     func_append old_files " m4/gnulib-tool.m4"
4590   fi
4591
4592   rewritten='%REWRITTEN%'
4593   sed_rewrite_old_files="\
4594     s,^build-aux/,$rewritten$auxdir/,
4595     s,^doc/,$rewritten$cached_docbase/,
4596     s,^lib/,$rewritten$cached_sourcebase/,
4597     s,^m4/,$rewritten$cached_m4base/,
4598     s,^tests/,$rewritten$cached_testsbase/,
4599     s,^tests=lib/,$rewritten$cached_testsbase/,
4600     s,^top/,$rewritten,
4601     s,^$rewritten,,"
4602   sed_rewrite_new_files="\
4603     s,^build-aux/,$rewritten$auxdir/,
4604     s,^doc/,$rewritten$docbase/,
4605     s,^lib/,$rewritten$sourcebase/,
4606     s,^m4/,$rewritten$m4base/,
4607     s,^tests/,$rewritten$testsbase/,
4608     s,^tests=lib/,$rewritten$testsbase/,
4609     s,^top/,$rewritten,
4610     s,^$rewritten,,"
4611
4612   # Create directories.
4613   { echo "$sourcebase"
4614     echo "$m4base"
4615     if test -n "$pobase"; then
4616       echo "$pobase"
4617     fi
4618     docfiles=`echo "$files" | sed -n -e 's,^doc/,,p'`
4619     if test -n "$docfiles"; then
4620       echo "$docbase"
4621     fi
4622     if test -n "$inctests"; then
4623       echo "$testsbase"
4624     fi
4625     echo "$auxdir"
4626     for f in $files; do echo $f; done \
4627       | sed -e "$sed_rewrite_new_files" \
4628       | sed -n -e 's,^\(.*\)/[^/]*,\1,p' \
4629       | LC_ALL=C sort -u
4630   } > "$tmp"/dirs
4631   { # Rearrange file descriptors. Needed because "while ... done < ..."
4632     # constructs are executed in a subshell e.g. by Solaris 10 /bin/sh.
4633     exec 5<&0 < "$tmp"/dirs
4634     while read d; do
4635       if test ! -d "$destdir/$d"; then
4636         if $doit; then
4637           echo "Creating directory $destdir/$d"
4638           mkdir -p "$destdir/$d" || func_fatal_error "failed"
4639         else
4640           echo "Create directory $destdir/$d"
4641         fi
4642       fi
4643     done
4644     exec 0<&5 5<&-
4645   }
4646
4647   # Copy files or make symbolic links. Remove obsolete files.
4648   added_files=''
4649   removed_files=''
4650   delimiter='   '
4651   # Construct a table with 2 columns: rewritten-file-name original-file-name,
4652   # representing the files according to the last gnulib-tool invocation.
4653   for f in $old_files; do echo $f; done \
4654     | sed -e "s,^.*\$,&$delimiter&," -e "$sed_rewrite_old_files" \
4655     | LC_ALL=C sort \
4656     > "$tmp"/old-files
4657   # Construct a table with 2 columns: rewritten-file-name original-file-name,
4658   # representing the files after this gnulib-tool invocation.
4659   for f in $new_files; do echo $f; done \
4660     | sed -e "s,^.*\$,&$delimiter&," -e "$sed_rewrite_new_files" \
4661     | LC_ALL=C sort \
4662     > "$tmp"/new-files
4663   # First the files that are in old-files, but not in new-files:
4664   sed_take_first_column='s,'"$delimiter"'.*,,'
4665   for g in `LC_ALL=C join -t"$delimiter" -v1 "$tmp"/old-files "$tmp"/new-files | sed -e "$sed_take_first_column"`; do
4666     # Remove the file. Do nothing if the user already removed it.
4667     if test -f "$destdir/$g" || test -h "$destdir/$g"; then
4668       if $doit; then
4669         echo "Removing file $g (backup in ${g}~)"
4670         mv -f "$destdir/$g" "$destdir/${g}~" || func_fatal_error "failed"
4671       else
4672         echo "Remove file $g (backup in ${g}~)"
4673       fi
4674       func_append removed_files "$g$nl"
4675     fi
4676   done
4677   # func_add_or_update handles a file that ought to be present afterwards.
4678   # Uses parameters
4679   # - f             the original file name
4680   # - g             the rewritten file name
4681   # - already_present  nonempty if the file should already exist, empty
4682   #                    otherwise
4683   func_add_or_update ()
4684   {
4685     of="$f"
4686     case "$f" in
4687       tests=lib/*) f=`echo "$f" | sed -e 's,^tests=lib/,lib/,'` ;;
4688     esac
4689     func_dest_tmpfilename "$g"
4690     func_lookup_file "$f"
4691     cp "$lookedup_file" "$tmpfile" || func_fatal_error "failed"
4692     if test -n "$sed_transform_main_lib_file"; then
4693       case "$of" in
4694         lib/*)
4695           sed -e "$sed_transform_main_lib_file" \
4696             < "$lookedup_file" > "$tmpfile" || func_fatal_error "failed"
4697           ;;
4698       esac
4699     fi
4700     if test -n "$sed_transform_build_aux_file"; then
4701       case "$of" in
4702         build-aux/*)
4703           sed -e "$sed_transform_build_aux_file" \
4704             < "$lookedup_file" > "$tmpfile" || func_fatal_error "failed"
4705           ;;
4706       esac
4707     fi
4708     if test -n "$sed_transform_testsrelated_lib_file"; then
4709       case "$of" in
4710         tests=lib/*)
4711           sed -e "$sed_transform_testsrelated_lib_file" \
4712             < "$lookedup_file" > "$tmpfile" || func_fatal_error "failed"
4713           ;;
4714       esac
4715     fi
4716     if test -f "$destdir/$g"; then
4717       # The file already exists.
4718       func_update_file
4719     else
4720       # Install the file.
4721       # Don't protest if the file should be there but isn't: it happens
4722       # frequently that developers don't put autogenerated files under version control.
4723       func_add_file
4724       func_append added_files "$g$nl"
4725     fi
4726     rm -f "$tmpfile"
4727   }
4728   # Then the files that are in new-files, but not in old-files:
4729   sed_take_last_column='s,^.*'"$delimiter"',,'
4730   already_present=
4731   LC_ALL=C join -t"$delimiter" -v2 "$tmp"/old-files "$tmp"/new-files \
4732     | sed -e "$sed_take_last_column" \
4733     | sed -e "s,^.*\$,&$delimiter&," -e "$sed_rewrite_new_files" > "$tmp"/added-files
4734   { # Rearrange file descriptors. Needed because "while ... done < ..."
4735     # constructs are executed in a subshell e.g. by Solaris 10 /bin/sh.
4736     exec 5<&0 < "$tmp"/added-files
4737     while read g f; do
4738       func_add_or_update
4739     done
4740     exec 0<&5 5<&-
4741   }
4742   # Then the files that are in new-files and in old-files:
4743   already_present=true
4744   LC_ALL=C join -t"$delimiter" "$tmp"/old-files "$tmp"/new-files \
4745     | sed -e "$sed_take_last_column" \
4746     | sed -e "s,^.*\$,&$delimiter&," -e "$sed_rewrite_new_files" > "$tmp"/kept-files
4747   { # Rearrange file descriptors. Needed because "while ... done < ..."
4748     # constructs are executed in a subshell e.g. by Solaris 10 /bin/sh.
4749     exec 5<&0 < "$tmp"/kept-files
4750     while read g f; do
4751       func_add_or_update
4752     done
4753     exec 0<&5 5<&-
4754   }
4755
4756   # Command-line invocation printed in a comment in generated gnulib-cache.m4.
4757   actioncmd="gnulib-tool --import"
4758   func_append actioncmd " --dir=$destdir"
4759   if test -n "$local_gnulib_dir"; then
4760     func_append actioncmd " --local-dir=$local_gnulib_dir"
4761   fi
4762   func_append actioncmd " --lib=$libname"
4763   func_append actioncmd " --source-base=$sourcebase"
4764   func_append actioncmd " --m4-base=$m4base"
4765   if test -n "$pobase"; then
4766     func_append actioncmd " --po-base=$pobase"
4767   fi
4768   func_append actioncmd " --doc-base=$docbase"
4769   func_append actioncmd " --tests-base=$testsbase"
4770   func_append actioncmd " --aux-dir=$auxdir"
4771   if test -n "$inctests"; then
4772     func_append actioncmd " --with-tests"
4773   fi
4774   if test -n "$incobsolete"; then
4775     func_append actioncmd " --with-obsolete"
4776   fi
4777   if test -n "$inc_cxx_tests"; then
4778     func_append actioncmd " --with-c++-tests"
4779   fi
4780   if test -n "$inc_longrunning_tests"; then
4781     func_append actioncmd " --with-longrunning-tests"
4782   fi
4783   if test -n "$inc_privileged_tests"; then
4784     func_append actioncmd " --with-privileged-tests"
4785   fi
4786   if test -n "$inc_unportable_tests"; then
4787     func_append actioncmd " --with-unportable-tests"
4788   fi
4789   if test -n "$inc_all_tests"; then
4790     func_append actioncmd " --with-all-tests"
4791   fi
4792   for module in $avoidlist; do
4793     func_append actioncmd " --avoid=$module"
4794   done
4795   if test -n "$lgpl"; then
4796     if test "$lgpl" = yes; then
4797       func_append actioncmd " --lgpl"
4798     else
4799       func_append actioncmd " --lgpl=$lgpl"
4800     fi
4801   fi
4802   if test -n "$makefile_name"; then
4803     func_append actioncmd " --makefile-name=$makefile_name"
4804   fi
4805   if test "$cond_dependencies" = true; then
4806     func_append actioncmd " --conditional-dependencies"
4807   else
4808     func_append actioncmd " --no-conditional-dependencies"
4809   fi
4810   if test "$libtool" = true; then
4811     func_append actioncmd " --libtool"
4812   else
4813     func_append actioncmd " --no-libtool"
4814   fi
4815   func_append actioncmd " --macro-prefix=$macro_prefix"
4816   if test -n "$po_domain"; then
4817     func_append actioncmd " --po-domain=$po_domain"
4818   fi
4819   if test -n "$witness_c_macro"; then
4820     func_append actioncmd " --witness-c-macro=$witness_c_macro"
4821   fi
4822   if test -n "$vc_files"; then
4823     if test "$vc_files" = true; then
4824       func_append actioncmd " --vc-files"
4825     else
4826       func_append actioncmd " --no-vc-files"
4827     fi
4828   fi
4829   func_append actioncmd " `echo $specified_modules`"
4830
4831   # Determine include_guard_prefix.
4832   func_compute_include_guard_prefix
4833
4834   # Default the makefile name to Makefile.am.
4835   if test -n "$makefile_name"; then
4836     makefile_am=$makefile_name
4837   else
4838     makefile_am=Makefile.am
4839   fi
4840
4841   # Create normal Makefile.ams.
4842   for_test=false
4843
4844   # Setup list of Makefile.am edits that are to be performed afterwards.
4845   # Some of these edits apply to files that we will generate; others are
4846   # under the responsibility of the developer.
4847   makefile_am_edits=0
4848   # func_note_Makefile_am_edit dir var value
4849   # remembers that ${dir}Makefile.am needs to be edited to that ${var} mentions
4850   # ${value}.
4851   func_note_Makefile_am_edit ()
4852   {
4853     makefile_am_edits=`expr $makefile_am_edits + 1`
4854     eval makefile_am_edit${makefile_am_edits}_dir=\"\$1\"
4855     eval makefile_am_edit${makefile_am_edits}_var=\"\$2\"
4856     eval makefile_am_edit${makefile_am_edits}_val=\"\$3\"
4857   }
4858   if test "$makefile_am" = Makefile.am; then
4859     sourcebase_dir=`echo "$sourcebase" | sed -n -e 's,/[^/]*$,/,p'`
4860     sourcebase_base=`basename "$sourcebase"`
4861     func_note_Makefile_am_edit "$sourcebase_dir" SUBDIRS "$sourcebase_base"
4862   fi
4863   if test -n "$pobase"; then
4864     pobase_dir=`echo "$pobase" | sed -n -e 's,/[^/]*$,/,p'`
4865     pobase_base=`basename "$pobase"`
4866     func_note_Makefile_am_edit "$pobase_dir" SUBDIRS "$pobase_base"
4867   fi
4868   if test -n "$inctests"; then
4869     if test "$makefile_am" = Makefile.am; then
4870       testsbase_dir=`echo "$testsbase" | sed -n -e 's,/[^/]*$,/,p'`
4871       testsbase_base=`basename "$testsbase"`
4872       func_note_Makefile_am_edit "$testsbase_dir" SUBDIRS "$testsbase_base"
4873     fi
4874   fi
4875   func_note_Makefile_am_edit "" ACLOCAL_AMFLAGS "-I ${m4base}"
4876   {
4877     # Find the first parent directory of $m4base that contains or will contain
4878     # a Makefile.am.
4879     sed_last='s,^.*/\([^/][^/]*\)//*$,\1/,
4880 s,//*$,/,'
4881     sed_butlast='s,[^/][^/]*//*$,,'
4882     dir1="${m4base}/"; dir2=""
4883     while test -n "$dir1" \
4884           && ! { test -f "${destdir}/${dir1}Makefile.am" \
4885                  || test "${dir1}Makefile.am" = "$sourcebase/$makefile_am" \
4886                  || test "./${dir1}Makefile.am" = "$sourcebase/$makefile_am" \
4887                  || { test -n "$inctests" \
4888                       && { test "${dir1}Makefile.am" = "$testsbase/$makefile_am" \
4889                            || test "./${dir1}Makefile.am" = "$testsbase/$makefile_am"; }; }; }; do
4890       dir2=`echo "$dir1" | sed -e "$sed_last"`"$dir2"
4891       dir1=`echo "$dir1" | sed -e "$sed_butlast"`
4892     done
4893     func_note_Makefile_am_edit "$dir1" EXTRA_DIST "${dir2}gnulib-cache.m4"
4894   }
4895
4896   # Create library makefile.
4897   func_dest_tmpfilename $sourcebase/$makefile_am
4898   destfile="$sourcebase/$makefile_am"
4899   modules="$main_modules"
4900   func_emit_lib_Makefile_am > "$tmpfile"
4901   if test -f "$destdir"/$sourcebase/$makefile_am; then
4902     if cmp "$destdir"/$sourcebase/$makefile_am "$tmpfile" > /dev/null; then
4903       rm -f "$tmpfile"
4904     else
4905       if $doit; then
4906         echo "Updating $sourcebase/$makefile_am (backup in $sourcebase/$makefile_am~)"
4907         mv -f "$destdir"/$sourcebase/$makefile_am "$destdir"/$sourcebase/$makefile_am~
4908         mv -f "$tmpfile" "$destdir"/$sourcebase/$makefile_am
4909       else
4910         echo "Update $sourcebase/$makefile_am (backup in $sourcebase/$makefile_am~)"
4911         rm -f "$tmpfile"
4912       fi
4913     fi
4914   else
4915     if $doit; then
4916       echo "Creating $sourcebase/$makefile_am"
4917       mv -f "$tmpfile" "$destdir"/$sourcebase/$makefile_am
4918     else
4919       echo "Create $sourcebase/$makefile_am"
4920       rm -f "$tmpfile"
4921     fi
4922     func_append added_files "$sourcebase/$makefile_am$nl"
4923   fi
4924
4925   # Create po/ directory.
4926   if test -n "$pobase"; then
4927     # Create po makefile and auxiliary files.
4928     for file in Makefile.in.in remove-potcdate.sin; do
4929       func_dest_tmpfilename $pobase/$file
4930       func_lookup_file build-aux/po/$file
4931       cat "$lookedup_file" > "$tmpfile"
4932       if test -f "$destdir"/$pobase/$file; then
4933         if cmp "$destdir"/$pobase/$file "$tmpfile" > /dev/null; then
4934           rm -f "$tmpfile"
4935         else
4936           if $doit; then
4937             echo "Updating $pobase/$file (backup in $pobase/$file~)"
4938             mv -f "$destdir"/$pobase/$file "$destdir"/$pobase/$file~
4939             mv -f "$tmpfile" "$destdir"/$pobase/$file
4940           else
4941             echo "Update $pobase/$file (backup in $pobase/$file~)"
4942             rm -f "$tmpfile"
4943           fi
4944         fi
4945       else
4946         if $doit; then
4947           echo "Creating $pobase/$file"
4948           mv -f "$tmpfile" "$destdir"/$pobase/$file
4949         else
4950           echo "Create $pobase/$file"
4951           rm -f "$tmpfile"
4952         fi
4953         func_append added_files "$pobase/$file$nl"
4954       fi
4955     done
4956     # Create po makefile parameterization, part 1.
4957     func_dest_tmpfilename $pobase/Makevars
4958     func_emit_po_Makevars > "$tmpfile"
4959     if test -f "$destdir"/$pobase/Makevars; then
4960       if cmp "$destdir"/$pobase/Makevars "$tmpfile" > /dev/null; then
4961         rm -f "$tmpfile"
4962       else
4963         if $doit; then
4964           echo "Updating $pobase/Makevars (backup in $pobase/Makevars~)"
4965           mv -f "$destdir"/$pobase/Makevars "$destdir"/$pobase/Makevars~
4966           mv -f "$tmpfile" "$destdir"/$pobase/Makevars
4967         else
4968           echo "Update $pobase/Makevars (backup in $pobase/Makevars~)"
4969           rm -f "$tmpfile"
4970         fi
4971       fi
4972     else
4973       if $doit; then
4974         echo "Creating $pobase/Makevars"
4975         mv -f "$tmpfile" "$destdir"/$pobase/Makevars
4976       else
4977         echo "Create $pobase/Makevars"
4978         rm -f "$tmpfile"
4979       fi
4980       func_append added_files "$pobase/Makevars$nl"
4981     fi
4982     # Create po makefile parameterization, part 2.
4983     func_dest_tmpfilename $pobase/POTFILES.in
4984     func_emit_po_POTFILES_in > "$tmpfile"
4985     if test -f "$destdir"/$pobase/POTFILES.in; then
4986       if cmp "$destdir"/$pobase/POTFILES.in "$tmpfile" > /dev/null; then
4987         rm -f "$tmpfile"
4988       else
4989         if $doit; then
4990           echo "Updating $pobase/POTFILES.in (backup in $pobase/POTFILES.in~)"
4991           mv -f "$destdir"/$pobase/POTFILES.in "$destdir"/$pobase/POTFILES.in~
4992           mv -f "$tmpfile" "$destdir"/$pobase/POTFILES.in
4993         else
4994           echo "Update $pobase/POTFILES.in (backup in $pobase/POTFILES.in~)"
4995           rm -f "$tmpfile"
4996         fi
4997       fi
4998     else
4999       if $doit; then
5000         echo "Creating $pobase/POTFILES.in"
5001         mv -f "$tmpfile" "$destdir"/$pobase/POTFILES.in
5002       else
5003         echo "Create $pobase/POTFILES.in"
5004         rm -f "$tmpfile"
5005       fi
5006       func_append added_files "$pobase/POTFILES.in$nl"
5007     fi
5008     # Fetch PO files.
5009     TP_URL="http://translationproject.org/latest/"
5010     TP_RSYNC_URI="translationproject.org::tp/latest/"
5011     if $doit; then
5012       echo "Fetching gnulib PO files from $TP_URL"
5013       (cd "$destdir"/$pobase \
5014        && { # Prefer rsync over wget if it is available, since it consumes
5015             # less network bandwidth, due to compression.
5016             if type rsync 2>/dev/null | grep / > /dev/null; then
5017               rsync -Lrtz "${TP_RSYNC_URI}gnulib/" .
5018             else
5019               wget --quiet -r -l1 -nd -np -A.po "${TP_URL}gnulib"
5020             fi
5021           }
5022       )
5023     else
5024       echo "Fetch gnulib PO files from $TP_URL"
5025     fi
5026     # Create po/LINGUAS.
5027     if $doit; then
5028       func_dest_tmpfilename $pobase/LINGUAS
5029       (cd "$destdir"/$pobase \
5030        && { echo '# Set of available languages.'
5031             LC_ALL=C ls -1 *.po | sed -e 's,\.po$,,'
5032           }
5033       ) > "$tmpfile"
5034       if test -f "$destdir"/$pobase/LINGUAS; then
5035         if cmp "$destdir"/$pobase/LINGUAS "$tmpfile" > /dev/null; then
5036           rm -f "$tmpfile"
5037         else
5038           echo "Updating $pobase/LINGUAS (backup in $pobase/LINGUAS~)"
5039           mv -f "$destdir"/$pobase/LINGUAS "$destdir"/$pobase/LINGUAS~
5040           mv -f "$tmpfile" "$destdir"/$pobase/LINGUAS
5041         fi
5042       else
5043         echo "Creating $pobase/LINGUAS"
5044         mv -f "$tmpfile" "$destdir"/$pobase/LINGUAS
5045         func_append added_files "$pobase/LINGUAS$nl"
5046       fi
5047     else
5048       if test -f "$destdir"/$pobase/LINGUAS; then
5049         echo "Update $pobase/LINGUAS (backup in $pobase/LINGUAS~)"
5050       else
5051         echo "Create $pobase/LINGUAS"
5052       fi
5053     fi
5054   fi
5055
5056   # Create m4/gnulib-cache.m4.
5057   func_dest_tmpfilename $m4base/gnulib-cache.m4
5058   (
5059     func_emit_copyright_notice
5060     echo "#"
5061     echo "# This file represents the specification of how gnulib-tool is used."
5062     echo "# It acts as a cache: It is written and read by gnulib-tool."
5063     echo "# In projects that use version control, this file is meant to be put under"
5064     echo "# version control, like the configure.ac and various Makefile.am files."
5065     echo
5066     echo
5067     echo "# Specification in the form of a command-line invocation:"
5068     echo "#   $actioncmd"
5069     echo
5070     echo "# Specification in the form of a few gnulib-tool.m4 macro invocations:"
5071     # Store the local_gnulib_dir relative to destdir.
5072     case "$local_gnulib_dir" in
5073       "" | /*)
5074         relative_local_gnulib_dir="$local_gnulib_dir" ;;
5075       * )
5076         case "$destdir" in
5077           /*) relative_local_gnulib_dir="$local_gnulib_dir" ;;
5078           *)
5079             # destdir, local_gnulib_dir are both relative.
5080             func_relativize "$destdir" "$local_gnulib_dir"
5081             relative_local_gnulib_dir="$reldir" ;;
5082         esac ;;
5083     esac
5084     echo "gl_LOCAL_DIR([$relative_local_gnulib_dir])"
5085     echo "gl_MODULES(["
5086     echo "$specified_modules" | sed -e 's/^/  /g'
5087     echo "])"
5088     test -z "$incobsolete" || echo "gl_WITH_OBSOLETE"
5089     test -z "$inc_cxx_tests" || echo "gl_WITH_CXX_TESTS"
5090     test -z "$inc_longrunning_tests" || echo "gl_WITH_LONGRUNNING_TESTS"
5091     test -z "$inc_privileged_tests" || echo "gl_WITH_PRIVILEGED_TESTS"
5092     test -z "$inc_unportable_tests" || echo "gl_WITH_UNPORTABLE_TESTS"
5093     test -z "$inc_all_tests" || echo "gl_WITH_ALL_TESTS"
5094     echo "gl_AVOID([$avoidlist])"
5095     echo "gl_SOURCE_BASE([$sourcebase])"
5096     echo "gl_M4_BASE([$m4base])"
5097     echo "gl_PO_BASE([$pobase])"
5098     echo "gl_DOC_BASE([$docbase])"
5099     echo "gl_TESTS_BASE([$testsbase])"
5100     test -z "$inctests" || echo "gl_WITH_TESTS"
5101     echo "gl_LIB([$libname])"
5102     if test -n "$lgpl"; then
5103       if test "$lgpl" = yes; then
5104         echo "gl_LGPL"
5105       else
5106         echo "gl_LGPL([$lgpl])"
5107       fi
5108     fi
5109     echo "gl_MAKEFILE_NAME([$makefile_name])"
5110     if test "$cond_dependencies" = true; then
5111       echo "gl_CONDITIONAL_DEPENDENCIES"
5112     fi
5113     if test "$libtool" = true; then
5114       echo "gl_LIBTOOL"
5115     fi
5116     echo "gl_MACRO_PREFIX([$macro_prefix])"
5117     echo "gl_PO_DOMAIN([$po_domain])"
5118     echo "gl_WITNESS_C_DOMAIN([$witness_c_macro])"
5119     if test -n "$vc_files"; then
5120       echo "gl_VC_FILES([$vc_files])"
5121     fi
5122   ) > "$tmpfile"
5123   if test -f "$destdir"/$m4base/gnulib-cache.m4; then
5124     if cmp "$destdir"/$m4base/gnulib-cache.m4 "$tmpfile" > /dev/null; then
5125       rm -f "$tmpfile"
5126     else
5127       if $doit; then
5128         echo "Updating $m4base/gnulib-cache.m4 (backup in $m4base/gnulib-cache.m4~)"
5129         mv -f "$destdir"/$m4base/gnulib-cache.m4 "$destdir"/$m4base/gnulib-cache.m4~
5130         mv -f "$tmpfile" "$destdir"/$m4base/gnulib-cache.m4
5131       else
5132         echo "Update $m4base/gnulib-cache.m4 (backup in $m4base/gnulib-cache.m4~)"
5133         if false; then
5134           cat "$tmpfile"
5135           echo
5136           echo "# gnulib-cache.m4 ends here"
5137         fi
5138         rm -f "$tmpfile"
5139       fi
5140     fi
5141   else
5142     if $doit; then
5143       echo "Creating $m4base/gnulib-cache.m4"
5144       mv -f "$tmpfile" "$destdir"/$m4base/gnulib-cache.m4
5145     else
5146       echo "Create $m4base/gnulib-cache.m4"
5147       cat "$tmpfile"
5148       rm -f "$tmpfile"
5149     fi
5150   fi
5151
5152   # Create m4/gnulib-comp.m4.
5153   func_dest_tmpfilename $m4base/gnulib-comp.m4
5154   (
5155     echo "# DO NOT EDIT! GENERATED AUTOMATICALLY!"
5156     func_emit_copyright_notice
5157     echo "#"
5158     echo "# This file represents the compiled summary of the specification in"
5159     echo "# gnulib-cache.m4. It lists the computed macro invocations that need"
5160     echo "# to be invoked from configure.ac."
5161     echo "# In projects that use version control, this file can be treated like"
5162     echo "# other built files."
5163     echo
5164     echo
5165     echo "# This macro should be invoked from $configure_ac, in the section"
5166     echo "# \"Checks for programs\", right after AC_PROG_CC, and certainly before"
5167     echo "# any checks for libraries, header files, types and library functions."
5168     echo "AC_DEFUN([${macro_prefix}_EARLY],"
5169     echo "["
5170     echo "  m4_pattern_forbid([^gl_[A-Z]])dnl the gnulib macro namespace"
5171     echo "  m4_pattern_allow([^gl_ES\$])dnl a valid locale name"
5172     echo "  m4_pattern_allow([^gl_LIBOBJS\$])dnl a variable"
5173     echo "  m4_pattern_allow([^gl_LTLIBOBJS\$])dnl a variable"
5174     echo "  AC_REQUIRE([gl_PROG_AR_RANLIB])"
5175     if test -n "$uses_subdirs"; then
5176       echo "  AC_REQUIRE([AM_PROG_CC_C_O])"
5177     fi
5178     for module in $final_modules; do
5179       func_verify_module
5180       if test -n "$module"; then
5181         echo "# Code from module $module:"
5182         func_get_autoconf_early_snippet "$module"
5183       fi
5184     done \
5185       | sed -e '/^$/d;' -e 's/^/  /'
5186     echo "])"
5187     echo
5188     echo "# This macro should be invoked from $configure_ac, in the section"
5189     echo "# \"Check for header files, types and library functions\"."
5190     echo "AC_DEFUN([${macro_prefix}_INIT],"
5191     echo "["
5192     if test "$libtool" = true; then
5193       echo "  AM_CONDITIONAL([GL_COND_LIBTOOL], [true])"
5194       echo "  gl_cond_libtool=true"
5195     else
5196       echo "  AM_CONDITIONAL([GL_COND_LIBTOOL], [false])"
5197       echo "  gl_cond_libtool=false"
5198       echo "  gl_libdeps="
5199       echo "  gl_ltlibdeps="
5200     fi
5201     if test "$auxdir" != "build-aux"; then
5202       sed_replace_build_aux='
5203         :a
5204         /AC_CONFIG_FILES(.*:build-aux\/.*)/{
5205           s|AC_CONFIG_FILES(\(.*\):build-aux/\(.*\))|AC_CONFIG_FILES(\1:'"$auxdir"'/\2)|
5206           ba
5207         }'
5208     else
5209       sed_replace_build_aux="$sed_noop"
5210     fi
5211     echo "  gl_m4_base='$m4base'"
5212     func_emit_initmacro_start $macro_prefix
5213     echo "  gl_source_base='$sourcebase'"
5214     if test -n "$witness_c_macro"; then
5215       echo "  m4_pushdef([gl_MODULE_INDICATOR_CONDITION], [$witness_c_macro])"
5216     fi
5217     func_emit_autoconf_snippets "$main_modules" func_verify_module true false true
5218     if test -n "$witness_c_macro"; then
5219       echo "  m4_popdef([gl_MODULE_INDICATOR_CONDITION])"
5220     fi
5221     echo "  # End of code from modules"
5222     func_emit_initmacro_end $macro_prefix
5223     echo "  gltests_libdeps="
5224     echo "  gltests_ltlibdeps="
5225     func_emit_initmacro_start ${macro_prefix}tests
5226     echo "  gl_source_base='$testsbase'"
5227     # Define a tests witness macro that depends on the package.
5228     # PACKAGE is defined by AM_INIT_AUTOMAKE, PACKAGE_TARNAME is defined by AC_INIT.
5229     # See <http://lists.gnu.org/archive/html/automake/2009-05/msg00145.html>.
5230     echo "changequote(,)dnl"
5231     echo "  ${macro_prefix}tests_WITNESS=IN_\`echo \"\${PACKAGE-\$PACKAGE_TARNAME}\" | LC_ALL=C tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ | LC_ALL=C sed -e 's/[^A-Z0-9_]/_/g'\`_GNULIB_TESTS"
5232     echo "changequote([, ])dnl"
5233     echo "  AC_SUBST([${macro_prefix}tests_WITNESS])"
5234     echo "  gl_module_indicator_condition=\$${macro_prefix}tests_WITNESS"
5235     echo "  m4_pushdef([gl_MODULE_INDICATOR_CONDITION], [\$gl_module_indicator_condition])"
5236     func_emit_autoconf_snippets "$testsrelated_modules" func_verify_module true true true
5237     echo "  m4_popdef([gl_MODULE_INDICATOR_CONDITION])"
5238     func_emit_initmacro_end ${macro_prefix}tests
5239     # _LIBDEPS and _LTLIBDEPS variables are not needed if this library is
5240     # created using libtool, because libtool already handles the dependencies.
5241     if test "$libtool" != true; then
5242       libname_upper=`echo "$libname" | LC_ALL=C tr '[a-z]-' '[A-Z]_'`
5243       echo "  ${libname_upper}_LIBDEPS=\"\$gl_libdeps\""
5244       echo "  AC_SUBST([${libname_upper}_LIBDEPS])"
5245       echo "  ${libname_upper}_LTLIBDEPS=\"\$gl_ltlibdeps\""
5246       echo "  AC_SUBST([${libname_upper}_LTLIBDEPS])"
5247     fi
5248     if $use_libtests; then
5249       echo "  LIBTESTS_LIBDEPS=\"\$gltests_libdeps\""
5250       echo "  AC_SUBST([LIBTESTS_LIBDEPS])"
5251     fi
5252     echo "])"
5253     func_emit_initmacro_done $macro_prefix $sourcebase
5254     func_emit_initmacro_done ${macro_prefix}tests $testsbase
5255     echo
5256     echo "# This macro records the list of files which have been installed by"
5257     echo "# gnulib-tool and may be removed by future gnulib-tool invocations."
5258     echo "AC_DEFUN([${macro_prefix}_FILE_LIST], ["
5259     echo "$files" | sed -e 's,^,  ,'
5260     echo "])"
5261   ) > "$tmpfile"
5262   if test -f "$destdir"/$m4base/gnulib-comp.m4; then
5263     if cmp "$destdir"/$m4base/gnulib-comp.m4 "$tmpfile" > /dev/null; then
5264       rm -f "$tmpfile"
5265     else
5266       if $doit; then
5267         echo "Updating $m4base/gnulib-comp.m4 (backup in $m4base/gnulib-comp.m4~)"
5268         mv -f "$destdir"/$m4base/gnulib-comp.m4 "$destdir"/$m4base/gnulib-comp.m4~
5269         mv -f "$tmpfile" "$destdir"/$m4base/gnulib-comp.m4
5270       else
5271         echo "Update $m4base/gnulib-comp.m4 (backup in $m4base/gnulib-comp.m4~)"
5272         if false; then
5273           cat "$tmpfile"
5274           echo
5275           echo "# gnulib-comp.m4 ends here"
5276         fi
5277         rm -f "$tmpfile"
5278       fi
5279     fi
5280   else
5281     if $doit; then
5282       echo "Creating $m4base/gnulib-comp.m4"
5283       mv -f "$tmpfile" "$destdir"/$m4base/gnulib-comp.m4
5284     else
5285       echo "Create $m4base/gnulib-comp.m4"
5286       cat "$tmpfile"
5287       rm -f "$tmpfile"
5288     fi
5289   fi
5290
5291   if test -n "$inctests"; then
5292     # Create tests makefile.
5293     func_dest_tmpfilename $testsbase/$makefile_am
5294     destfile="$testsbase/$makefile_am"
5295     modules="$testsrelated_modules"
5296     func_emit_tests_Makefile_am "${macro_prefix}tests_WITNESS" > "$tmpfile"
5297     if test -f "$destdir"/$testsbase/$makefile_am; then
5298       if cmp "$destdir"/$testsbase/$makefile_am "$tmpfile" > /dev/null; then
5299         rm -f "$tmpfile"
5300       else
5301         if $doit; then
5302           echo "Updating $testsbase/$makefile_am (backup in $testsbase/$makefile_am~)"
5303           mv -f "$destdir"/$testsbase/$makefile_am "$destdir"/$testsbase/$makefile_am~
5304           mv -f "$tmpfile" "$destdir"/$testsbase/$makefile_am
5305         else
5306           echo "Update $testsbase/$makefile_am (backup in $testsbase/$makefile_am~)"
5307           rm -f "$tmpfile"
5308         fi
5309       fi
5310     else
5311       if $doit; then
5312         echo "Creating $testsbase/$makefile_am"
5313         mv -f "$tmpfile" "$destdir"/$testsbase/$makefile_am
5314       else
5315         echo "Create $testsbase/$makefile_am"
5316         rm -f "$tmpfile"
5317       fi
5318     func_append added_files "$testsbase/$makefile_am$nl"
5319     fi
5320   fi
5321
5322   if test "$vc_files" != false; then
5323     # Update the .cvsignore and .gitignore files.
5324     { echo "$added_files" | sed -e '/^$/d' -e 's,\([^/]*\)$,|A|\1,'
5325       echo "$removed_files" | sed -e '/^$/d' -e 's,\([^/]*\)$,|R|\1,'
5326       # Treat gnulib-comp.m4 like an added file, even if it already existed.
5327       echo "$m4base/|A|gnulib-comp.m4"
5328     } | LC_ALL=C sort -t'|' -k1,1 > "$tmp"/fileset-changes
5329     { # Rearrange file descriptors. Needed because "while ... done < ..."
5330       # constructs are executed in a subshell e.g. by Solaris 10 /bin/sh.
5331       exec 5<&0 < "$tmp"/fileset-changes
5332       func_update_ignorelist ()
5333       {
5334         ignore="$1"
5335         if test "$ignore" = .gitignore; then
5336           # In a .gitignore file, "foo" applies to the current directory and all
5337           # subdirectories, whereas "/foo" applies to the current directory only.
5338           anchor='/'
5339           escaped_anchor='\/'
5340           doubly_escaped_anchor='\\/'
5341         else
5342           anchor=''
5343           escaped_anchor=''
5344           doubly_escaped_anchor=''
5345         fi
5346         if test -f "$destdir/$dir$ignore"; then
5347           if test -n "$dir_added" || test -n "$dir_removed"; then
5348             sed -e "s|^$anchor||" < "$destdir/$dir$ignore" | LC_ALL=C sort > "$tmp"/ignore
5349             (echo "$dir_added" | sed -e '/^$/d' | LC_ALL=C sort -u \
5350                | LC_ALL=C join -v 1 - "$tmp"/ignore > "$tmp"/ignore-added
5351              echo "$dir_removed" | sed -e '/^$/d' | LC_ALL=C sort -u \
5352                | LC_ALL=C join -v 1 - "$tmp"/ignore > "$tmp"/ignore-removed
5353             )
5354             if test -s "$tmp"/ignore-added || test -s "$tmp"/ignore-removed; then
5355               if $doit; then
5356                 echo "Updating $destdir/$dir$ignore (backup in $destdir/$dir${ignore}~)"
5357                 mv -f "$destdir/$dir$ignore" "$destdir/$dir$ignore"~
5358                 { sed -e 's,/,\\/,g' -e 's,^,/^,' -e 's,$,\$/d,' < "$tmp"/ignore-removed
5359                   if test -n "$anchor"; then sed -e 's,/,\\/,g' -e "s,^,/^${doubly_escaped_anchor}," -e 's,$,$/d,' < "$tmp"/ignore-removed; fi
5360                 } > "$tmp"/sed-ignore-removed
5361                 { cat "$destdir/$dir$ignore"~
5362                   sed -e "s|^|$anchor|" < "$tmp"/ignore-added
5363                 } | sed -f "$tmp"/sed-ignore-removed \
5364                   > "$destdir/$dir$ignore"
5365               else
5366                 echo "Update $destdir/$dir$ignore (backup in $destdir/$dir${ignore}~)"
5367               fi
5368             fi
5369           fi
5370         else
5371           if test -n "$dir_added"; then
5372             if $doit; then
5373               echo "Creating $destdir/$dir$ignore"
5374               {
5375                 if test "$ignore" = .cvsignore; then
5376                   echo ".deps"
5377                   # Automake generates Makefile rules that create .dirstamp files.
5378                   echo ".dirstamp"
5379                 fi
5380                 echo "$dir_added" | sed -e '/^$/d' -e "s|^|$anchor|" | LC_ALL=C sort -u
5381               } > "$destdir/$dir$ignore"
5382             else
5383               echo "Create $destdir/$dir$ignore"
5384             fi
5385           fi
5386         fi
5387       }
5388       func_done_dir ()
5389       {
5390         dir="$1"
5391         dir_added="$2"
5392         dir_removed="$3"
5393         if test -d "$destdir/CVS" || test -d "$destdir/${dir}CVS" || test -f "$destdir/${dir}.cvsignore"; then
5394           func_update_ignorelist .cvsignore
5395         fi
5396         if test -d "$destdir/.git" || test -f "$destdir/${dir}.gitignore"; then
5397           func_update_ignorelist .gitignore
5398         fi
5399       }
5400       last_dir=
5401       last_dir_added=
5402       last_dir_removed=
5403       while read line; do
5404         # Why not ''read next_dir op file'' ? Because the dir column can be empty.
5405         next_dir=`echo "$line" | sed -e 's,|.*,,'`
5406         op=`echo "$line" | sed -e 's,^[^|]*|\([^|]*\)|.*$,\1,'`
5407         file=`echo "$line" | sed -e 's,^[^|]*|[^|]*|,,'`
5408         if test "$next_dir" != "$last_dir"; then
5409           func_done_dir "$last_dir" "$last_dir_added" "$last_dir_removed"
5410           last_dir="$next_dir"
5411           last_dir_added=
5412           last_dir_removed=
5413         fi
5414         case $op in
5415           A) func_append last_dir_added "$file$nl";;
5416           R) func_append last_dir_removed "$file$nl";;
5417         esac
5418       done
5419       func_done_dir "$last_dir" "$last_dir_added" "$last_dir_removed"
5420       exec 0<&5 5<&-
5421     }
5422   fi
5423
5424   echo "Finished."
5425   echo
5426   echo "You may need to add #include directives for the following .h files."
5427   # Intersect $specified_modules and $main_modules
5428   # (since $specified_modules is not necessarily of subset of $main_modules
5429   # - some may have been skipped through --avoid, and since the elements of
5430   # $main_modules but not in $specified_modules can go away without explicit
5431   # notice - through changes in the module dependencies).
5432   echo "$specified_modules" > "$tmp"/modules1 # a sorted list, one module per line
5433   echo "$main_modules" > "$tmp"/modules2 # also a sorted list, one module per line
5434   # First the #include <...> directives without #ifs, sorted for convenience,
5435   # then the #include "..." directives without #ifs, sorted for convenience,
5436   # then the #include directives that are surrounded by #ifs. Not sorted.
5437   for module in `LC_ALL=C join "$tmp"/modules1 "$tmp"/modules2`; do
5438     include_directive=`func_get_include_directive "$module"`
5439     case "$nl$include_directive" in
5440       *"$nl#if"*)
5441         echo "$include_directive" 1>&5
5442         ;;
5443       *)
5444         echo "$include_directive" | grep -v 'include "' 1>&6
5445         echo "$include_directive" | grep 'include "' 1>&7
5446         ;;
5447     esac
5448   done 5> "$tmp"/include-if 6> "$tmp"/include-angles 7> "$tmp"/include-quotes
5449   (
5450    LC_ALL=C sort -u "$tmp"/include-angles
5451    LC_ALL=C sort -u "$tmp"/include-quotes
5452    cat "$tmp"/include-if
5453   ) | sed -e '/^$/d' -e 's/^/  /'
5454   rm -f "$tmp"/include-angles "$tmp"/include-quotes "$tmp"/include-if
5455
5456   for module in $main_modules; do
5457     func_get_link_directive "$module"
5458   done \
5459     | LC_ALL=C sort -u | sed -e '/^$/d' -e 's/^/  /' > "$tmp"/link
5460   if test `wc -l < "$tmp"/link` != 0; then
5461     echo
5462     echo "You may need to use the following Makefile variables when linking."
5463     echo "Use them in <program>_LDADD when linking a program, or"
5464     echo "in <library>_a_LDFLAGS or <library>_la_LDFLAGS when linking a library."
5465     cat "$tmp"/link
5466   fi
5467   rm -f "$tmp"/link
5468
5469   echo
5470   echo "Don't forget to"
5471   if test "$makefile_am" = Makefile.am; then
5472     echo "  - add \"$sourcebase/Makefile\" to AC_CONFIG_FILES in $configure_ac,"
5473   else
5474     echo "  - \"include $makefile_name\" from within \"$sourcebase/Makefile.am\","
5475   fi
5476   if test -n "$pobase"; then
5477     echo "  - add \"$pobase/Makefile.in\" to AC_CONFIG_FILES in $configure_ac,"
5478   fi
5479   if test -n "$inctests"; then
5480     if test "$makefile_am" = Makefile.am; then
5481       echo "  - add \"$testsbase/Makefile\" to AC_CONFIG_FILES in $configure_ac,"
5482     else
5483       echo "  - \"include $makefile_name\" from within \"$testsbase/Makefile.am\","
5484     fi
5485   fi
5486   edit=0
5487   while test $edit != $makefile_am_edits; do
5488     edit=`expr $edit + 1`
5489     eval dir=\"\$makefile_am_edit${edit}_dir\"
5490     eval var=\"\$makefile_am_edit${edit}_var\"
5491     eval val=\"\$makefile_am_edit${edit}_val\"
5492     if test -n "$var"; then
5493       echo "  - mention \"${val}\" in ${var} in ${dir}Makefile.am,"
5494     fi
5495   done
5496   if grep '^ *AC_PROG_CC_STDC' "$configure_ac" > /dev/null; then
5497     position_early_after=AC_PROG_CC_STDC
5498   else
5499     if grep '^ *AC_PROG_CC_C99' "$configure_ac" > /dev/null; then
5500       position_early_after=AC_PROG_CC_C99
5501     else
5502       position_early_after=AC_PROG_CC
5503     fi
5504   fi
5505   echo "  - invoke ${macro_prefix}_EARLY in $configure_ac, right after $position_early_after,"
5506   echo "  - invoke ${macro_prefix}_INIT in $configure_ac."
5507 }
5508
5509 # func_create_testdir testdir modules
5510 # Input:
5511 # - local_gnulib_dir  from --local-dir
5512 # - modcache        true or false, from --cache-modules/--no-cache-modules
5513 # - auxdir          directory relative to destdir where to place build aux files
5514 # - inctests        true if tests should be included, blank otherwise
5515 # - incobsolete     true if obsolete modules among dependencies should be
5516 #                   included, blank otherwise
5517 # - excl_cxx_tests   true if C++ interoperability tests should be excluded,
5518 #                    blank otherwise
5519 # - excl_longrunning_tests  true if long-runnings tests should be excluded,
5520 #                           blank otherwise
5521 # - excl_privileged_tests  true if tests that require root privileges should be
5522 #                          excluded, blank otherwise
5523 # - excl_unportable_tests  true if tests that fail on some platforms should be
5524 #                          excluded, blank otherwise
5525 # - single_configure  true if a single configure file should be generated,
5526 #                     false for a separate configure file for the tests
5527 # - avoidlist       list of modules to avoid
5528 # - cond_dependencies  true if --conditional-dependencies was given, false if
5529 #                      --no-conditional-dependencies was given, blank otherwise
5530 # - libtool         true if --libtool was given, false if --no-libtool was
5531 #                   given, blank otherwise
5532 # - symbolic        true if files should be symlinked, copied otherwise
5533 # - lsymbolic       true if files from local_gnulib_dir should be symlinked,
5534 #                   copied otherwise
5535 func_create_testdir ()
5536 {
5537   testdir="$1"
5538   modules="$2"
5539   if test -z "$modules"; then
5540     # All modules together.
5541     # Except config-h, which breaks all modules which use HAVE_CONFIG_H.
5542     # Except ftruncate, mountlist, which abort the configuration on mingw. FIXME.
5543     # Except lib-ignore, which leads to link errors when Sun C++ is used. FIXME.
5544     modules=`func_all_modules`
5545     modules=`for m in $modules; do case $m in config-h | ftruncate | mountlist | lib-ignore) ;; *) echo $m;; esac; done`
5546   fi
5547   specified_modules="$modules"
5548
5549   # Canonicalize the list of specified modules.
5550   specified_modules=`for m in $specified_modules; do echo $m; done | LC_ALL=C sort -u`
5551
5552   # Unlike in func_import, here we want to include all kinds of tests for the
5553   # directly specified modules, but not for dependencies.
5554   inc_all_direct_tests=true
5555   inc_all_indirect_tests="$inc_all_tests"
5556
5557   # Check that the license of every module is consistent with the license of
5558   # its dependencies.
5559   saved_inctests="$inctests"
5560   # When computing transitive closures, don't consider $module to depend on
5561   # $module-tests. Need this because tests are implicitly GPL and may depend
5562   # on GPL modules - therefore we don't want a warning in this case.
5563   inctests=""
5564   for requested_module in $specified_modules; do
5565     requested_license=`func_get_license "$requested_module"`
5566     if test "$requested_license" != GPL; then
5567       # Here we use func_modules_transitive_closure, not just
5568       # func_get_dependencies, so that we also detect weird situations like
5569       # an LGPL module which depends on a GPLed build tool module which depends
5570       # on a GPL module.
5571       modules="$requested_module"
5572       func_modules_transitive_closure
5573       for module in $modules; do
5574         license=`func_get_license "$module"`
5575         case "$license" in
5576           'GPLed build tool') ;;
5577           'public domain' | 'unlimited' | 'unmodifiable license text') ;;
5578           *)
5579             case "$requested_license" in
5580               GPLv2+)
5581                 case "$license" in
5582                   GPLv2+ | LGPLv2+) ;;
5583                   *) func_warning "module $requested_module depends on a module with an incompatible license: $module" ;;
5584                 esac
5585                 ;;
5586               LGPL)
5587                 case "$license" in
5588                   LGPL | LGPLv2+) ;;
5589                   *) func_warning "module $requested_module depends on a module with an incompatible license: $module" ;;
5590                 esac
5591                 ;;
5592               LGPLv2+)
5593                 case "$license" in
5594                   LGPLv2+) ;;
5595                   *) func_warning "module $requested_module depends on a module with an incompatible license: $module" ;;
5596                 esac
5597                 ;;
5598             esac
5599             ;;
5600         esac
5601       done
5602     fi
5603   done
5604   inctests="$saved_inctests"
5605
5606   # Subdirectory names.
5607   sourcebase=gllib
5608   m4base=glm4
5609   pobase=
5610   docbase=gldoc
5611   testsbase=gltests
5612   macro_prefix=gl
5613   po_domain=
5614   witness_c_macro=
5615   vc_files=
5616
5617   # Determine final module list.
5618   modules="$specified_modules"
5619   func_modules_transitive_closure
5620   if test $verbose -ge 0; then
5621     func_show_module_list
5622   fi
5623   final_modules="$modules"
5624
5625   if $single_configure; then
5626     # Determine main module list and tests-related module list separately.
5627     func_modules_transitive_closure_separately
5628   fi
5629
5630   if $single_configure; then
5631     # Determine whether a $testsbase/libtests.a is needed.
5632     func_determine_use_libtests
5633   fi
5634
5635   # Add the dummy module if needed.
5636   if $single_configure; then
5637     func_modules_add_dummy_separately
5638   else
5639     func_modules_add_dummy
5640   fi
5641
5642   # Show banner notice of every module.
5643   if $single_configure; then
5644     modules="$main_modules"
5645     func_modules_notice
5646   else
5647     func_modules_notice
5648   fi
5649
5650   # Determine final file list.
5651   if $single_configure; then
5652     func_modules_to_filelist_separately
5653   else
5654     func_modules_to_filelist
5655     if test $verbose -ge 0; then
5656       echo "File list:"
5657       echo "$files" | sed -e 's/^/  /'
5658     fi
5659   fi
5660   # Add files for which the copy in gnulib is newer than the one that
5661   # "automake --add-missing --copy" would provide.
5662   files="$files build-aux/config.guess"
5663   files="$files build-aux/config.sub"
5664   files=`for f in $files; do echo $f; done | LC_ALL=C sort -u`
5665
5666   rewritten='%REWRITTEN%'
5667   sed_rewrite_files="\
5668     s,^build-aux/,$rewritten$auxdir/,
5669     s,^doc/,$rewritten$docbase/,
5670     s,^lib/,$rewritten$sourcebase/,
5671     s,^m4/,$rewritten$m4base/,
5672     s,^tests/,$rewritten$testsbase/,
5673     s,^tests=lib/,$rewritten$testsbase/,
5674     s,^top/,$rewritten,
5675     s,^$rewritten,,"
5676
5677   # Create directories.
5678   for f in $files; do echo $f; done \
5679     | sed -e "$sed_rewrite_files" \
5680     | sed -n -e 's,^\(.*\)/[^/]*,\1,p' \
5681     | LC_ALL=C sort -u \
5682     > "$tmp"/dirs
5683   { # Rearrange file descriptors. Needed because "while ... done < ..."
5684     # constructs are executed in a subshell e.g. by Solaris 10 /bin/sh.
5685     exec 5<&0 < "$tmp"/dirs
5686     while read d; do
5687       mkdir -p "$testdir/$d"
5688     done
5689     exec 0<&5 5<&-
5690   }
5691
5692   # Copy files or make symbolic links.
5693   delimiter='   '
5694   for f in $files; do echo $f; done \
5695     | sed -e "s,^.*\$,&$delimiter&," -e "$sed_rewrite_files" \
5696     | LC_ALL=C sort \
5697     > "$tmp"/files
5698   { # Rearrange file descriptors. Needed because "while ... done < ..."
5699     # constructs are executed in a subshell e.g. by Solaris 10 /bin/sh.
5700     exec 5<&0 < "$tmp"/files
5701     while read g f; do
5702       case "$f" in
5703         tests=lib/*) f=`echo "$f" | sed -e 's,^tests=lib/,lib/,'` ;;
5704       esac
5705       func_lookup_file "$f"
5706       if test -n "$lookedup_tmp"; then
5707         cp -p "$lookedup_file" "$testdir/$g"
5708       else
5709         ln "$lookedup_file" "$testdir/$g" 2>/dev/null ||
5710         if { test -n "$symbolic" \
5711              || { test -n "$lsymbolic" \
5712                   && test "$lookedup_file" = "$local_gnulib_dir/$f"; }; }; then
5713           func_ln "$lookedup_file" "$testdir/$g"
5714         else
5715           cp -p "$lookedup_file" "$testdir/$g"
5716         fi
5717       fi
5718     done
5719     exec 0<&5 5<&-
5720   }
5721
5722   # Determine include_guard_prefix.
5723   func_compute_include_guard_prefix
5724
5725   # Create Makefile.ams that are for testing.
5726   for_test=true
5727
5728   # No special edits are needed.
5729   makefile_am_edits=0
5730
5731   # Create $sourcebase/Makefile.am.
5732   mkdir -p "$testdir/$sourcebase"
5733   destfile="$sourcebase/Makefile.am"
5734   if $single_configure; then
5735     modules="$main_modules"
5736   fi
5737   func_emit_lib_Makefile_am > "$testdir/$sourcebase/Makefile.am"
5738   any_uses_subdirs="$uses_subdirs"
5739
5740   # Create $m4base/Makefile.am.
5741   mkdir -p "$testdir/$m4base"
5742   (echo "## Process this file with automake to produce Makefile.in."
5743    echo
5744    echo "EXTRA_DIST ="
5745    for f in $files; do
5746      case "$f" in
5747        m4/* )
5748          echo "EXTRA_DIST += "`echo "$f" | sed -e 's,^m4/,,'` ;;
5749      esac
5750    done
5751   ) > "$testdir/$m4base/Makefile.am"
5752
5753   subdirs="$sourcebase $m4base"
5754   subdirs_with_configure_ac=""
5755
5756   if false && test -f "$testdir"/$m4base/gettext.m4; then
5757     # Avoid stupid error message from automake:
5758     # "AM_GNU_GETTEXT used but `po' not in SUBDIRS"
5759     mkdir -p "$testdir/po"
5760     (echo "## Process this file with automake to produce Makefile.in."
5761     ) > "$testdir/po/Makefile.am"
5762     func_append subdirs " po"
5763   fi
5764
5765   if test -n "$inctests"; then
5766     test -d "$testdir/$testsbase" || mkdir "$testdir/$testsbase"
5767     if $single_configure; then
5768       # Create $testsbase/Makefile.am.
5769       destfile="$testsbase/Makefile.am"
5770       modules="$testsrelated_modules"
5771       func_emit_tests_Makefile_am "${macro_prefix}tests_WITNESS" > "$testdir/$testsbase/Makefile.am"
5772     else
5773       # Viewed from the $testsbase subdirectory, $auxdir is different.
5774       saved_auxdir="$auxdir"
5775       auxdir=`echo "$testsbase/" | sed -e 's%[^/][^/]*//*%../%g'`"$auxdir"
5776       # Create $testsbase/Makefile.am.
5777       use_libtests=false
5778       destfile="$testsbase/Makefile.am"
5779       func_emit_tests_Makefile_am "" > "$testdir/$testsbase/Makefile.am"
5780       any_uses_subdirs="$any_uses_subdirs$uses_subdirs"
5781       # Create $testsbase/configure.ac.
5782       (echo "# Process this file with autoconf to produce a configure script."
5783        echo "AC_INIT([dummy], [0])"
5784        echo "AC_CONFIG_AUX_DIR([$auxdir])"
5785        echo "AM_INIT_AUTOMAKE"
5786        echo
5787        echo "AC_CONFIG_HEADERS([config.h])"
5788        echo
5789        echo "AC_PROG_CC"
5790        echo "AC_PROG_INSTALL"
5791        echo "AC_PROG_MAKE_SET"
5792        echo "gl_PROG_AR_RANLIB"
5793        echo
5794        if test -n "$uses_subdirs"; then
5795          echo "AM_PROG_CC_C_O"
5796          echo
5797        fi
5798        for module in $modules; do
5799          func_verify_module
5800          if test -n "$module"; then
5801            case $module in
5802              gnumakefile | maintainer-makefile)
5803                # These modules are meant to be used only in the top-level directory.
5804                ;;
5805              *)
5806                func_get_autoconf_early_snippet "$module"
5807                ;;
5808            esac
5809          fi
5810        done \
5811          | sed -e '/^$/d;' -e 's/AC_REQUIRE(\[\([^()]*\)\])/\1/'
5812        if test "$libtool" = true; then
5813          echo "LT_INIT([win32-dll])"
5814          echo "LT_LANG([C++])"
5815          echo "AM_CONDITIONAL([GL_COND_LIBTOOL], [true])"
5816          echo "gl_cond_libtool=true"
5817        else
5818          echo "AM_CONDITIONAL([GL_COND_LIBTOOL], [false])"
5819          echo "gl_cond_libtool=false"
5820          echo "gl_libdeps="
5821          echo "gl_ltlibdeps="
5822        fi
5823        # Wrap the set of autoconf snippets into an autoconf macro that is then
5824        # invoked. This is needed because autoconf does not support AC_REQUIRE
5825        # at the top level:
5826        #   error: AC_REQUIRE(gt_CSHARPCOMP): cannot be used outside of an AC_DEFUN'd macro
5827        # but we want the AC_REQUIRE to have its normal meaning (provide one
5828        # expansion of the required macro before the current point, and only one
5829        # expansion total).
5830        echo "AC_DEFUN([gl_INIT], ["
5831        sed_replace_build_aux='
5832          :a
5833          /AC_CONFIG_FILES(.*:build-aux\/.*)/{
5834            s|AC_CONFIG_FILES(\(.*\):build-aux/\(.*\))|AC_CONFIG_FILES(\1:'"$auxdir"'/\2)|
5835            ba
5836          }'
5837        echo "gl_m4_base='../$m4base'"
5838        func_emit_initmacro_start $macro_prefix
5839        # We don't have explicit ordering constraints between the various
5840        # autoconf snippets. It's cleanest to put those of the library before
5841        # those of the tests.
5842        echo "gl_source_base='../$sourcebase'"
5843        func_emit_autoconf_snippets "$modules" func_verify_nontests_module false false false
5844        echo "gl_source_base='.'"
5845        func_emit_autoconf_snippets "$modules" func_verify_tests_module false false false
5846        func_emit_initmacro_end $macro_prefix
5847        # _LIBDEPS and _LTLIBDEPS variables are not needed if this library is
5848        # created using libtool, because libtool already handles the dependencies.
5849        if test "$libtool" != true; then
5850          libname_upper=`echo "$libname" | LC_ALL=C tr '[a-z]-' '[A-Z]_'`
5851          echo "  ${libname_upper}_LIBDEPS=\"\$gl_libdeps\""
5852          echo "  AC_SUBST([${libname_upper}_LIBDEPS])"
5853          echo "  ${libname_upper}_LTLIBDEPS=\"\$gl_ltlibdeps\""
5854          echo "  AC_SUBST([${libname_upper}_LTLIBDEPS])"
5855        fi
5856        echo "])"
5857        func_emit_initmacro_done $macro_prefix $sourcebase # FIXME use $sourcebase or $testsbase?
5858        echo
5859        echo "gl_INIT"
5860        echo
5861        # Usually $testsbase/config.h will be a superset of config.h. Verify this
5862        # by "merging" config.h into $testsbase/config.h; look out for gcc warnings.
5863        echo "AH_TOP([#include \"../config.h\"])"
5864        echo
5865        echo "AC_CONFIG_FILES([Makefile])"
5866        echo "AC_OUTPUT"
5867       ) > "$testdir/$testsbase/configure.ac"
5868       auxdir="$saved_auxdir"
5869       subdirs_with_configure_ac="$subdirs_with_configure_ac $testsbase"
5870     fi
5871     func_append subdirs " $testsbase"
5872   fi
5873
5874   # Create Makefile.am.
5875   (echo "## Process this file with automake to produce Makefile.in."
5876    echo
5877    echo "AUTOMAKE_OPTIONS = 1.5 foreign"
5878    echo
5879    echo "SUBDIRS = $subdirs"
5880    echo
5881    echo "ACLOCAL_AMFLAGS = -I $m4base"
5882   ) > "$testdir/Makefile.am"
5883
5884   # Create configure.ac.
5885   (echo "# Process this file with autoconf to produce a configure script."
5886    echo "AC_INIT([dummy], [0])"
5887    if test "$auxdir" != "."; then
5888      echo "AC_CONFIG_AUX_DIR([$auxdir])"
5889    fi
5890    echo "AM_INIT_AUTOMAKE"
5891    echo
5892    echo "AC_CONFIG_HEADERS([config.h])"
5893    echo
5894    echo "AC_PROG_CC"
5895    echo "AC_PROG_INSTALL"
5896    echo "AC_PROG_MAKE_SET"
5897    echo
5898    echo "# For autobuild."
5899    echo "AC_CANONICAL_BUILD"
5900    echo "AC_CANONICAL_HOST"
5901    echo
5902    echo "m4_pattern_forbid([^gl_[A-Z]])dnl the gnulib macro namespace"
5903    echo "m4_pattern_allow([^gl_ES\$])dnl a valid locale name"
5904    echo "m4_pattern_allow([^gl_LIBOBJS\$])dnl a variable"
5905    echo "m4_pattern_allow([^gl_LTLIBOBJS\$])dnl a variable"
5906    echo
5907    echo "gl_PROG_AR_RANLIB"
5908    echo
5909    if test -n "$any_uses_subdirs"; then
5910      echo "AM_PROG_CC_C_O"
5911      echo
5912    fi
5913    for module in $final_modules; do
5914      if $single_configure; then
5915        func_verify_module
5916      else
5917        func_verify_nontests_module
5918      fi
5919      if test -n "$module"; then
5920        func_get_autoconf_early_snippet "$module"
5921      fi
5922    done \
5923      | sed -e '/^$/d;' -e 's/AC_REQUIRE(\[\([^()]*\)\])/\1/'
5924    if test "$libtool" = true; then
5925      echo "LT_INIT([win32-dll])"
5926      echo "LT_LANG([C++])"
5927      echo "AM_CONDITIONAL([GL_COND_LIBTOOL], [true])"
5928      echo "gl_cond_libtool=true"
5929    else
5930      echo "AM_CONDITIONAL([GL_COND_LIBTOOL], [false])"
5931      echo "gl_cond_libtool=false"
5932      echo "gl_libdeps="
5933      echo "gl_ltlibdeps="
5934    fi
5935    # Wrap the set of autoconf snippets into an autoconf macro that is then
5936    # invoked. This is needed because autoconf does not support AC_REQUIRE
5937    # at the top level:
5938    #   error: AC_REQUIRE(gt_CSHARPCOMP): cannot be used outside of an AC_DEFUN'd macro
5939    # but we want the AC_REQUIRE to have its normal meaning (provide one
5940    # expansion of the required macro before the current point, and only one
5941    # expansion total).
5942    echo "AC_DEFUN([gl_INIT], ["
5943    if test "$auxdir" != "build-aux"; then
5944      sed_replace_build_aux='
5945        :a
5946        /AC_CONFIG_FILES(.*:build-aux\/.*)/{
5947          s|AC_CONFIG_FILES(\(.*\):build-aux/\(.*\))|AC_CONFIG_FILES(\1:'"$auxdir"'/\2)|
5948          ba
5949        }'
5950    else
5951      sed_replace_build_aux="$sed_noop"
5952    fi
5953    echo "gl_m4_base='$m4base'"
5954    func_emit_initmacro_start $macro_prefix
5955    echo "gl_source_base='$sourcebase'"
5956    if $single_configure; then
5957      func_emit_autoconf_snippets "$main_modules" func_verify_module true false false
5958    else
5959      func_emit_autoconf_snippets "$modules" func_verify_nontests_module true false false
5960    fi
5961    func_emit_initmacro_end $macro_prefix
5962    if $single_configure; then
5963      echo "  gltests_libdeps="
5964      echo "  gltests_ltlibdeps="
5965      func_emit_initmacro_start ${macro_prefix}tests
5966      echo "  gl_source_base='$testsbase'"
5967      # Define a tests witness macro.
5968      echo "  ${macro_prefix}tests_WITNESS=IN_GNULIB_TESTS"
5969      echo "  AC_SUBST([${macro_prefix}tests_WITNESS])"
5970      echo "  gl_module_indicator_condition=\$${macro_prefix}tests_WITNESS"
5971      echo "  m4_pushdef([gl_MODULE_INDICATOR_CONDITION], [\$gl_module_indicator_condition])"
5972      func_emit_autoconf_snippets "$testsrelated_modules" func_verify_module true false false
5973      echo "  m4_popdef([gl_MODULE_INDICATOR_CONDITION])"
5974      func_emit_initmacro_end ${macro_prefix}tests
5975    fi
5976    # _LIBDEPS and _LTLIBDEPS variables are not needed if this library is
5977    # created using libtool, because libtool already handles the dependencies.
5978    if test "$libtool" != true; then
5979      libname_upper=`echo "$libname" | LC_ALL=C tr '[a-z]-' '[A-Z]_'`
5980      echo "  ${libname_upper}_LIBDEPS=\"\$gl_libdeps\""
5981      echo "  AC_SUBST([${libname_upper}_LIBDEPS])"
5982      echo "  ${libname_upper}_LTLIBDEPS=\"\$gl_ltlibdeps\""
5983      echo "  AC_SUBST([${libname_upper}_LTLIBDEPS])"
5984    fi
5985    if $single_configure; then
5986      if $use_libtests; then
5987        echo "  LIBTESTS_LIBDEPS=\"\$gltests_libdeps\""
5988        echo "  AC_SUBST([LIBTESTS_LIBDEPS])"
5989      fi
5990    fi
5991    echo "])"
5992    func_emit_initmacro_done $macro_prefix $sourcebase
5993    if $single_configure; then
5994      func_emit_initmacro_done ${macro_prefix}tests $testsbase
5995    fi
5996    echo
5997    echo "gl_INIT"
5998    echo
5999    if test -n "$subdirs_with_configure_ac"; then
6000      echo "AC_CONFIG_SUBDIRS(["`echo $subdirs_with_configure_ac`"])"
6001    fi
6002    makefiles="Makefile"
6003    for d in $subdirs; do
6004      # For subdirs that have a configure.ac by their own, it's the subdir's
6005      # configure.ac which creates the subdir's Makefile.am, not this one.
6006      case " $subdirs_with_configure_ac " in
6007        *" $d "*) ;;
6008        *) func_append makefiles " $d/Makefile" ;;
6009      esac
6010    done
6011    echo "AC_CONFIG_FILES([$makefiles])"
6012    echo "AC_OUTPUT"
6013   ) > "$testdir/configure.ac"
6014
6015   # Create autogenerated files.
6016   (cd "$testdir"
6017    # Do not use "${AUTORECONF} --force --install", because it may invoke
6018    # autopoint, which brings in older versions of some of our .m4 files.
6019    if test -f $m4base/gettext.m4; then
6020      func_execute_command ${AUTOPOINT} --force || func_exit 1
6021      for f in $m4base/*.m4~; do
6022        if test -f $f; then
6023          mv -f $f `echo $f | sed -e 's,~$,,'` || func_exit 1
6024        fi
6025      done
6026    fi
6027    if test "$libtool" = true; then
6028      func_execute_command ${LIBTOOLIZE} --copy || func_exit 1
6029    fi
6030    func_execute_command ${ACLOCAL} -I $m4base || func_exit 1
6031    if ! test -d build-aux; then
6032      func_execute_command mkdir build-aux || func_exit 1
6033    fi
6034    func_execute_command ${AUTOCONF} || func_exit 1
6035    func_execute_command ${AUTOHEADER} || func_exit 1
6036    func_execute_command ${AUTOMAKE} --add-missing --copy || func_exit 1
6037   ) || func_exit 1
6038   if test -n "$inctests" && ! $single_configure; then
6039     # Create autogenerated files.
6040     (cd "$testdir/$testsbase" || func_exit 1
6041      # Do not use "${AUTORECONF} --force --install", because it may invoke
6042      # autopoint, which brings in older versions of some of our .m4 files.
6043      if test -f ../$m4base/gettext.m4; then
6044        func_execute_command ${AUTOPOINT} --force || func_exit 1
6045        for f in ../$m4base/*.m4~; do
6046          if test -f $f; then
6047            mv -f $f `echo $f | sed -e 's,~$,,'` || func_exit 1
6048          fi
6049        done
6050      fi
6051      func_execute_command ${ACLOCAL} -I ../$m4base || func_exit 1
6052      if ! test -d ../build-aux; then
6053        func_execute_command mkdir ../build-aux
6054      fi
6055      func_execute_command ${AUTOCONF} || func_exit 1
6056      func_execute_command ${AUTOHEADER} || func_exit 1
6057      func_execute_command ${AUTOMAKE} --add-missing --copy || func_exit 1
6058     ) || func_exit 1
6059   fi
6060   # Need to run configure and make once, to create built files that are to be
6061   # distributed (such as parse-datetime.c).
6062   sed_remove_make_variables='s,[$]([A-Za-z0-9_]*),,g'
6063   # Extract the value of "CLEANFILES += ..." and "MOSTLYCLEANFILES += ...".
6064   cleaned_files=`sed -e "$sed_remove_backslash_newline" < "$testdir/$sourcebase/Makefile.am" \
6065                  | sed -n -e 's,^CLEANFILES[     ]*+=\([^#]*\).*$,\1,p' -e 's,^MOSTLYCLEANFILES[         ]*+=\([^#]*\).*$,\1,p'`
6066   cleaned_files=`for file in $cleaned_files; do echo " $file "; done`
6067   # Extract the value of "BUILT_SOURCES += ...". Remove variable references
6068   # such $(FOO_H) because they don't refer to distributed files.
6069   built_sources=`sed -e "$sed_remove_backslash_newline" < "$testdir/$sourcebase/Makefile.am" \
6070                  | sed -n -e 's,^BUILT_SOURCES[  ]*+=\([^#]*\).*$,\1,p' \
6071                  | sed -e "$sed_remove_make_variables"`
6072   distributed_built_sources=`for file in $built_sources; do
6073                                case "$cleaned_files" in
6074                                  *" "$file" "*) ;;
6075                                  *) echo $file ;;
6076                                esac;
6077                              done`
6078   tests_distributed_built_sources=
6079   if test -n "$inctests"; then
6080     # Likewise for built files in the $testsbase directory.
6081     tests_cleaned_files=`sed -e "$sed_remove_backslash_newline" < "$testdir/$testsbase/Makefile.am" \
6082                          | sed -n -e 's,^CLEANFILES[     ]*+=\([^#]*\).*$,\1,p' -e 's,^MOSTLYCLEANFILES[         ]*+=\([^#]*\).*$,\1,p'`
6083     tests_cleaned_files=`for file in $tests_cleaned_files; do echo " $file "; done`
6084     tests_built_sources=`sed -e "$sed_remove_backslash_newline" < "$testdir/$testsbase/Makefile.am" \
6085                          | sed -n -e 's,^BUILT_SOURCES[  ]*+=\([^#]*\).*$,\1,p' \
6086                          | sed -e "$sed_remove_make_variables"`
6087     tests_distributed_built_sources=`for file in $tests_built_sources; do
6088                                        case "$tests_cleaned_files" in
6089                                          *" "$file" "*) ;;
6090                                          *) echo $file ;;
6091                                        esac;
6092                                      done`
6093   fi
6094   if test -n "$distributed_built_sources" || test -n "$tests_distributed_built_sources"; then
6095     (cd "$testdir"
6096      ./configure || func_exit 1
6097        if test -n "$distributed_built_sources"; then
6098          cd "$sourcebase"
6099          echo 'built_sources: $(BUILT_SOURCES)' >> Makefile
6100          $MAKE AUTOCONF="${AUTOCONF}" AUTOHEADER="${AUTOHEADER}" ACLOCAL="${ACLOCAL}" AUTOMAKE="${AUTOMAKE}" AUTORECONF="${AUTORECONF}" AUTOPOINT="${AUTOPOINT}" LIBTOOLIZE="${LIBTOOLIZE}" \
6101                built_sources \
6102            || func_exit 1
6103          cd ..
6104        fi
6105        if test -n "$tests_distributed_built_sources"; then
6106          cd "$testsbase"
6107          echo 'built_sources: $(BUILT_SOURCES)' >> Makefile
6108          $MAKE AUTOCONF="${AUTOCONF}" AUTOHEADER="${AUTOHEADER}" ACLOCAL="${ACLOCAL}" AUTOMAKE="${AUTOMAKE}" AUTORECONF="${AUTORECONF}" AUTOPOINT="${AUTOPOINT}" LIBTOOLIZE="${LIBTOOLIZE}" \
6109                built_sources \
6110            || func_exit 1
6111          cd ..
6112        fi
6113      $MAKE AUTOCONF="${AUTOCONF}" AUTOHEADER="${AUTOHEADER}" ACLOCAL="${ACLOCAL}" AUTOMAKE="${AUTOMAKE}" AUTORECONF="${AUTORECONF}" AUTOPOINT="${AUTOPOINT}" LIBTOOLIZE="${LIBTOOLIZE}" \
6114            distclean \
6115        || func_exit 1
6116     ) || func_exit 1
6117   fi
6118 }
6119
6120 # func_create_megatestdir megatestdir allmodules
6121 # Input:
6122 # - local_gnulib_dir  from --local-dir
6123 # - modcache        true or false, from --cache-modules/--no-cache-modules
6124 # - auxdir          directory relative to destdir where to place build aux files
6125 func_create_megatestdir ()
6126 {
6127   megatestdir="$1"
6128   allmodules="$2"
6129   if test -z "$allmodules"; then
6130     allmodules=`func_all_modules`
6131   fi
6132
6133   megasubdirs=
6134   # First, all modules one by one.
6135   for onemodule in $allmodules; do
6136     func_create_testdir "$megatestdir/$onemodule" $onemodule
6137     func_append megasubdirs "$onemodule "
6138   done
6139   # Then, all modules all together.
6140   # Except config-h, which breaks all modules which use HAVE_CONFIG_H.
6141   allmodules=`for m in $allmodules; do if test $m != config-h; then echo $m; fi; done`
6142   func_create_testdir "$megatestdir/ALL" "$allmodules"
6143   func_append megasubdirs "ALL"
6144
6145   # Create autobuild.
6146   cvsdate=`if test -f "$gnulib_dir/CVS/Entries"; then \
6147              vc_witness="$gnulib_dir/CVS/Entries"; \
6148            else \
6149              vc_witness="$gnulib_dir/.git/refs/heads/master"; \
6150            fi; \
6151            sh "$gnulib_dir/build-aux/mdate-sh" "$vc_witness" \
6152              | sed -e 's,January,01,'   -e 's,Jan,01,' \
6153                    -e 's,February,02,'  -e 's,Feb,02,' \
6154                    -e 's,March,03,'     -e 's,Mar,03,' \
6155                    -e 's,April,04,'     -e 's,Apr,04,' \
6156                    -e 's,May,05,'                      \
6157                    -e 's,June,06,'      -e 's,Jun,06,' \
6158                    -e 's,July,07,'      -e 's,Jul,07,' \
6159                    -e 's,August,08,'    -e 's,Aug,08,' \
6160                    -e 's,September,09,' -e 's,Sep,09,' \
6161                    -e 's,October,10,'   -e 's,Oct,10,' \
6162                    -e 's,November,11,'  -e 's,Nov,11,' \
6163                    -e 's,December,12,'  -e 's,Dec,12,' \
6164                    -e 's,^,00,' -e 's,^[0-9]*\([0-9][0-9] \),\1,' \
6165                    -e 's,^\([0-9]*\) \([0-9]*\) \([0-9]*\),\3\2\1,'`
6166   (echo '#!/bin/sh'
6167    echo "CVSDATE=$cvsdate"
6168    echo ": \${MAKE=make}"
6169    echo "test -d logs || mkdir logs"
6170    echo "for module in $megasubdirs; do"
6171    echo "  echo \"Working on module \$module...\""
6172    echo "  safemodule=\`echo \$module | sed -e 's|/|-|g'\`"
6173    echo "  (echo \"To: gnulib@autobuild.josefsson.org\""
6174    echo "   echo"
6175    echo "   set -x"
6176    echo "   : autobuild project... \$module"
6177    echo "   : autobuild revision... cvs-\$CVSDATE-000000"
6178    echo "   : autobuild timestamp... \`date \"+%Y%m%d-%H%M%S\"\`"
6179    echo "   : autobuild hostname... \`hostname\`"
6180    echo "   cd \$module && ./configure \$CONFIGURE_OPTIONS && \$MAKE && \$MAKE check && \$MAKE distclean"
6181    echo "   echo rc=\$?"
6182    echo "  ) 2>&1 | { if test -n \"\$AUTOBUILD_SUBST\"; then sed -e \"\$AUTOBUILD_SUBST\"; else cat; fi; } > logs/\$safemodule"
6183    echo "done"
6184   ) > "$megatestdir/do-autobuild"
6185   chmod a+x "$megatestdir/do-autobuild"
6186
6187   # Create Makefile.am.
6188   (echo "## Process this file with automake to produce Makefile.in."
6189    echo
6190    echo "AUTOMAKE_OPTIONS = 1.5 foreign"
6191    echo
6192    echo "SUBDIRS = $megasubdirs"
6193    echo
6194    echo "EXTRA_DIST = do-autobuild"
6195   ) > "$megatestdir/Makefile.am"
6196
6197   # Create configure.ac.
6198   (echo "# Process this file with autoconf to produce a configure script."
6199    echo "AC_INIT([dummy], [0])"
6200    if test "$auxdir" != "."; then
6201      echo "AC_CONFIG_AUX_DIR([$auxdir])"
6202    fi
6203    echo "AM_INIT_AUTOMAKE"
6204    echo
6205    echo "AC_PROG_MAKE_SET"
6206    echo
6207    echo "AC_CONFIG_SUBDIRS([$megasubdirs])"
6208    echo "AC_CONFIG_FILES([Makefile])"
6209    echo "AC_OUTPUT"
6210   ) > "$megatestdir/configure.ac"
6211
6212   # Create autogenerated files.
6213   (cd "$megatestdir"
6214    # Do not use "${AUTORECONF} --install", because autoreconf operates
6215    # recursively, but the subdirectories are already finished, therefore
6216    # calling autoreconf here would only waste lots of CPU time.
6217    func_execute_command ${ACLOCAL} || func_exit 1
6218    func_execute_command mkdir build-aux
6219    func_execute_command ${AUTOCONF} || func_exit 1
6220    func_execute_command ${AUTOMAKE} --add-missing --copy || func_exit 1
6221   ) || func_exit 1
6222 }
6223
6224 case $mode in
6225   "" )
6226     func_fatal_error "no mode specified" ;;
6227
6228   list )
6229     func_all_modules
6230     ;;
6231
6232   find )
6233     # sed expression that converts a literal to a basic regular expression.
6234     # Needs to handle . [ \ * ^ $.
6235     sed_literal_to_basic_regex='s/\\/\\\\/g
6236 s/\[/\\[/g
6237 s/\^/\\^/g
6238 s/\([.*$]\)/[\1]/g'
6239     for filename
6240     do
6241       if test -f "$gnulib_dir/$filename" \
6242          || { test -n "$local_gnulib_dir" && test -f "$local_gnulib_dir/$filename"; }; then
6243         filename_anywhere_regex=`echo "$filename" | sed -e "$sed_literal_to_basic_regex"`
6244         filename_line_regex='^'"$filename_anywhere_regex"'$'
6245         module_candidates=`
6246           {
6247             (cd "$gnulib_dir" && find modules -type f -print | xargs -n 100 grep -l "$filename_line_regex" /dev/null | sed -e 's,^modules/,,')
6248             if test -n "$local_gnulib_dir" && test -d "$local_gnulib_dir/modules"; then
6249               (cd "$local_gnulib_dir" && find modules -type f -print | xargs -n 100 grep -l "$filename_anywhere_regex" /dev/null | sed -e 's,^modules/,,' -e 's,\.diff$,,')
6250             fi
6251           } \
6252             | func_sanitize_modulelist \
6253             | LC_ALL=C sort -u
6254           `
6255         for module in $module_candidates; do
6256           if func_get_filelist $module | grep "$filename_line_regex" > /dev/null; then
6257             echo $module
6258           fi
6259         done
6260       else
6261         func_warning "file $filename does not exist"
6262       fi
6263     done
6264     ;;
6265
6266   import | add-import | remove-import | update )
6267
6268     # Where to import.
6269     if test -z "$destdir"; then
6270       destdir=.
6271     fi
6272     test -d "$destdir" \
6273       || func_fatal_error "destination directory does not exist: $destdir"
6274
6275     # Prefer configure.ac to configure.in.
6276     if test -f "$destdir"/configure.ac; then
6277       configure_ac="$destdir/configure.ac"
6278     else
6279       if test -f "$destdir"/configure.in; then
6280         configure_ac="$destdir/configure.in"
6281       else
6282         func_fatal_error "cannot find $destdir/configure.ac - make sure you run gnulib-tool from within your package's directory"
6283       fi
6284     fi
6285
6286     # Analyze configure.ac.
6287     guessed_auxdir="."
6288     guessed_libtool=false
6289     my_sed_traces='
6290       s,#.*$,,
6291       s,^dnl .*$,,
6292       s, dnl .*$,,
6293       /AC_CONFIG_AUX_DIR/ {
6294         s,^.*AC_CONFIG_AUX_DIR([[ ]*\([^]"$`\\)]*\).*$,guessed_auxdir="\1",p
6295       }
6296       /A[CM]_PROG_LIBTOOL/ {
6297         s,^.*$,guessed_libtool=true,p
6298       }'
6299     eval `sed -n -e "$my_sed_traces" < "$configure_ac"`
6300
6301     if test -z "$auxdir"; then
6302       auxdir="$guessed_auxdir"
6303     fi
6304
6305     # Determine where to apply func_import.
6306     if test "$mode" = import; then
6307       # Apply func_import to a particular gnulib directory.
6308       # The command line contains the complete specification; don't look at
6309       # the contents of gnulib-cache.m4.
6310       test -n "$supplied_libname" || supplied_libname=true
6311       test -n "$sourcebase" || sourcebase="lib"
6312       test -n "$m4base" || m4base="m4"
6313       test -n "$docbase" || docbase="doc"
6314       test -n "$testsbase" || testsbase="tests"
6315       test -n "$macro_prefix" || macro_prefix="gl"
6316       func_import "$*"
6317     else
6318       if test -n "$m4base"; then
6319         # Apply func_import to a particular gnulib directory.
6320         # Any number of additional modules can be given.
6321         if test ! -f "$destdir/$m4base"/gnulib-cache.m4; then
6322           # First use of gnulib in the given m4base.
6323           test -n "$supplied_libname" || supplied_libname=true
6324           test -n "$sourcebase" || sourcebase="lib"
6325           test -n "$docbase" || docbase="doc"
6326           test -n "$testsbase" || testsbase="tests"
6327           test -n "$macro_prefix" || macro_prefix="gl"
6328         fi
6329         func_import "$*"
6330       else
6331         # Apply func_import to all gnulib directories.
6332         # To get this list of directories, look at Makefile.am. (Not at
6333         # configure, because it may be omitted from version control. Also,
6334         # don't run "find $destdir -name gnulib-cache.m4", as it might be
6335         # too expensive.)
6336         m4dirs=
6337         m4dirs_count=0
6338         if test -f "$destdir"/Makefile.am; then
6339           aclocal_amflags=`sed -n -e 's/^ACLOCAL_AMFLAGS[        ]*=\(.*\)$/\1/p' "$destdir"/Makefile.am`
6340           m4dir_is_next=
6341           for arg in $aclocal_amflags; do
6342             if test -n "$m4dir_is_next"; then
6343               # Ignore absolute directory pathnames, like /usr/local/share/aclocal.
6344               case "$arg" in
6345                 /*) ;;
6346                 *)
6347                   if test -f "$destdir/$arg"/gnulib-cache.m4; then
6348                     func_append m4dirs " $arg"
6349                     m4dirs_count=`expr $m4dirs_count + 1`
6350                   fi
6351                   ;;
6352               esac
6353               m4dir_is_next=
6354             else
6355               if test "X$arg" = "X-I"; then
6356                 m4dir_is_next=yes
6357               else
6358                 m4dir_is_next=
6359               fi
6360             fi
6361           done
6362         else
6363           # No Makefile.am! Oh well. Look at the last generated aclocal.m4.
6364           if test -f "$destdir"/aclocal.m4; then
6365             sedexpr1='s,^m4_include(\[\(.*\)])$,\1,p'
6366             sedexpr2='s,^[^/]*$,.,'
6367             sedexpr3='s,/[^/]*$,,'
6368             m4dirs=`sed -n -e "$sedexpr1" aclocal.m4 | sed -e "$sedexpr2" -e "$sedexpr3" | LC_ALL=C sort -u`
6369             m4dirs=`for arg in $m4dirs; do if test -f "$destdir/$arg"/gnulib-cache.m4; then echo $arg; fi; done`
6370             m4dirs_count=`for arg in $m4dirs; do echo "$arg"; done | wc -l`
6371           fi
6372         fi
6373         if test $m4dirs_count = 0; then
6374           # First use of gnulib in a package.
6375           # Any number of additional modules can be given.
6376           test -n "$supplied_libname" || supplied_libname=true
6377           test -n "$sourcebase" || sourcebase="lib"
6378           m4base="m4"
6379           test -n "$docbase" || docbase="doc"
6380           test -n "$testsbase" || testsbase="tests"
6381           test -n "$macro_prefix" || macro_prefix="gl"
6382           func_import "$*"
6383         else
6384           if test $m4dirs_count = 1; then
6385             # There's only one use of gnulib here. Assume the user means it.
6386             # Any number of additional modules can be given.
6387             for m4base in $m4dirs; do
6388               func_import "$*"
6389             done
6390           else
6391             # Ambiguous - guess what the user meant.
6392             if test $# = 0; then
6393               # No further arguments. Guess the user wants to update all of them.
6394               for m4base in $m4dirs; do
6395                 # Perform func_import in a subshell, so that variable values
6396                 # such as
6397                 #   local_gnulib_dir, incobsolete, inc_cxx_tests,
6398                 #   inc_longrunning_tests, inc_privileged_tests,
6399                 #   inc_unportable_tests, inc_all_tests, avoidlist, sourcebase,
6400                 #   m4base, pobase, docbase, testsbase, inctests, libname, lgpl,
6401                 #   makefile_name, libtool, macro_prefix, po_domain,
6402                 #   witness_c_macro, vc_files
6403                 # don't propagate from one directory to another.
6404                 (func_import) || func_exit 1
6405               done
6406             else
6407               # Really ambiguous.
6408               func_fatal_error "Ambiguity: to which directory should the modules be added? Please specify at least --m4-base=..."
6409             fi
6410           fi
6411         fi
6412       fi
6413     fi
6414     ;;
6415
6416   create-testdir )
6417     if test -z "$destdir"; then
6418       func_fatal_error "please specify --dir option"
6419     fi
6420     mkdir "$destdir"
6421     test -d "$destdir" \
6422       || func_fatal_error "could not create destination directory"
6423     test -n "$auxdir" || auxdir="build-aux"
6424     func_create_testdir "$destdir" "$*"
6425     ;;
6426
6427   create-megatestdir )
6428     if test -z "$destdir"; then
6429       func_fatal_error "please specify --dir option"
6430     fi
6431     mkdir "$destdir" || func_fatal_error "could not create destination directory"
6432     test -n "$auxdir" || auxdir="build-aux"
6433     func_create_megatestdir "$destdir" "$*"
6434     ;;
6435
6436   test )
6437     test -n "$destdir" || destdir=testdir$$
6438     mkdir "$destdir" || func_fatal_error "could not create destination directory"
6439     test -n "$auxdir" || auxdir="build-aux"
6440     func_create_testdir "$destdir" "$*"
6441     cd "$destdir"
6442       mkdir build
6443       cd build
6444         ../configure || func_exit 1
6445         $MAKE || func_exit 1
6446         $MAKE check || func_exit 1
6447         $MAKE distclean || func_exit 1
6448         remaining=`find . -type f -print`
6449         if test -n "$remaining"; then
6450           echo "Remaining files:" $remaining 1>&2
6451           echo "gnulib-tool: *** Stop." 1>&2
6452           func_exit 1
6453         fi
6454       cd ..
6455     cd ..
6456     rm -rf "$destdir"
6457     ;;
6458
6459   megatest )
6460     test -n "$destdir" || destdir=testdir$$
6461     mkdir "$destdir" || func_fatal_error "could not create destination directory"
6462     test -n "$auxdir" || auxdir="build-aux"
6463     func_create_megatestdir "$destdir" "$*"
6464     cd "$destdir"
6465       mkdir build
6466       cd build
6467         ../configure
6468         $MAKE
6469         $MAKE check
6470         $MAKE distclean
6471         remaining=`find . -type f -print`
6472         if test -n "$remaining"; then
6473           echo "Remaining files:" $remaining 1>&2
6474           echo "gnulib-tool: *** Stop." 1>&2
6475           func_exit 1
6476         fi
6477       cd ..
6478     cd ..
6479     rm -rf "$destdir"
6480     ;;
6481
6482   extract-description )
6483     for module
6484     do
6485       func_verify_module
6486       if test -n "$module"; then
6487         func_get_description "$module"
6488       fi
6489     done
6490     ;;
6491
6492   extract-comment )
6493     for module
6494     do
6495       func_verify_module
6496       if test -n "$module"; then
6497         func_get_comment "$module"
6498       fi
6499     done
6500     ;;
6501
6502   extract-status )
6503     for module
6504     do
6505       func_verify_module
6506       if test -n "$module"; then
6507         func_get_status "$module"
6508       fi
6509     done
6510     ;;
6511
6512   extract-notice )
6513     for module
6514     do
6515       func_verify_module
6516       if test -n "$module"; then
6517         func_get_notice "$module"
6518       fi
6519     done
6520     ;;
6521
6522   extract-applicability )
6523     for module
6524     do
6525       func_verify_module
6526       if test -n "$module"; then
6527         func_get_applicability "$module"
6528       fi
6529     done
6530     ;;
6531
6532   extract-filelist )
6533     for module
6534     do
6535       func_verify_module
6536       if test -n "$module"; then
6537         func_get_filelist "$module"
6538       fi
6539     done
6540     ;;
6541
6542   extract-dependencies )
6543     if test -n "$avoidlist"; then
6544       func_fatal_error "cannot combine --avoid and --extract-dependencies"
6545     fi
6546     for module
6547     do
6548       func_verify_module
6549       if test -n "$module"; then
6550         func_get_dependencies "$module"
6551       fi
6552     done
6553     ;;
6554
6555   extract-autoconf-snippet )
6556     for module
6557     do
6558       func_verify_module
6559       if test -n "$module"; then
6560         func_get_autoconf_snippet "$module"
6561       fi
6562     done
6563     ;;
6564
6565   extract-automake-snippet )
6566     for module
6567     do
6568       func_verify_module
6569       if test -n "$module"; then
6570         func_get_automake_snippet "$module"
6571       fi
6572     done
6573     ;;
6574
6575   extract-include-directive )
6576     for module
6577     do
6578       func_verify_module
6579       if test -n "$module"; then
6580         func_get_include_directive "$module"
6581       fi
6582     done
6583     ;;
6584
6585   extract-link-directive )
6586     for module
6587     do
6588       func_verify_module
6589       if test -n "$module"; then
6590         func_get_link_directive "$module"
6591       fi
6592     done
6593     ;;
6594
6595   extract-license )
6596     for module
6597     do
6598       func_verify_module
6599       if test -n "$module"; then
6600         func_get_license "$module"
6601       fi
6602     done
6603     ;;
6604
6605   extract-maintainer )
6606     for module
6607     do
6608       func_verify_module
6609       if test -n "$module"; then
6610         func_get_maintainer "$module"
6611       fi
6612     done
6613     ;;
6614
6615   extract-tests-module )
6616     for module
6617     do
6618       func_verify_module
6619       if test -n "$module"; then
6620         func_get_tests_module "$module"
6621       fi
6622     done
6623     ;;
6624
6625   copy-file )
6626     # Verify the number of arguments.
6627     if test $# -lt 1 || test $# -gt 2; then
6628       func_fatal_error "invalid number of arguments for --$mode"
6629     fi
6630
6631     # The first argument is the file to be copied.
6632     f="$1"
6633     # Verify the file exists.
6634     func_lookup_file "$f"
6635
6636     # The second argument is the destination; either a directory ot a file.
6637     # It defaults to the current directory.
6638     dest="$2"
6639     test -n "$dest" || dest='.'
6640     test -n "$sourcebase" || sourcebase="lib"
6641     test -n "$m4base" || m4base="m4"
6642     test -n "$docbase" || docbase="doc"
6643     test -n "$testsbase" || testsbase="tests"
6644     test -n "$auxdir" || auxdir="build-aux"
6645     rewritten='%REWRITTEN%'
6646     sed_rewrite_files="\
6647       s,^build-aux/,$rewritten$auxdir/,
6648       s,^doc/,$rewritten$docbase/,
6649       s,^lib/,$rewritten$sourcebase/,
6650       s,^m4/,$rewritten$m4base/,
6651       s,^tests/,$rewritten$testsbase/,
6652       s,^top/,$rewritten,
6653       s,^$rewritten,,"
6654     if test -d "$dest"; then
6655       destdir="$dest"
6656       g=`echo "$f" | sed -e "$sed_rewrite_files"`
6657     else
6658       destdir=`dirname "$dest"`
6659       g=`basename "$dest"`
6660     fi
6661
6662     # Create the directory for destfile.
6663     d=`dirname "$destdir/$g"`
6664     if $doit; then
6665       if test -n "$d" && test ! -d "$d"; then
6666         mkdir -p "$d" || func_fatal_error "failed"
6667       fi
6668     fi
6669     # Copy the file.
6670     func_dest_tmpfilename "$g"
6671     cp "$lookedup_file" "$tmpfile" || func_fatal_error "failed"
6672     already_present=true
6673     if test -f "$destdir/$g"; then
6674       # The file already exists.
6675       func_update_file
6676     else
6677       # Install the file.
6678       # Don't protest if the file should be there but isn't: it happens
6679       # frequently that developers don't put autogenerated files under version
6680       # control.
6681       func_add_file
6682     fi
6683     rm -f "$tmpfile"
6684     ;;
6685
6686   * )
6687     func_fatal_error "unknown operation mode --$mode" ;;
6688 esac
6689
6690 rm -rf "$tmp"
6691 # Undo the effect of the previous 'trap' command. Some shellology:
6692 # We cannot use "trap - 0 1 2 3 13 15", because Solaris sh would attempt to
6693 # execute the command "-". "trap '' ..." is fine only for signal 0 (= normal
6694 # exit); for the others we need to call 'exit' explicitly. The value of $? is
6695 # 128 + signal number and is set before the trap-registered command is run.
6696 trap '' 0
6697 trap 'func_exit $?' 1 2 3 13 15
6698
6699 exit 0
6700
6701 # Local Variables:
6702 # indent-tabs-mode: nil
6703 # whitespace-check-buffer-indent: nil
6704 # End: