gnulib-tool

   1 #! /bin/sh
   2 #
   3 # Copyright (C) 2002-2011 Free Software Foundation, Inc.
   4 #
   5 # This program is free software: you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 3 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 #
  18
  19 # This program is meant for authors or maintainers which want to import
  20 # modules from gnulib into their packages.
  21
  22 progname=$0
  23 package=gnulib
  24 nl='
  25 '
  26 IFS=" ""        $nl"
  27
  28 # You can set AUTOCONFPATH to empty if autoconf 2.57 is already in your PATH.
  29 AUTOCONFPATH=
  30 #case $USER in
  31 #  bruno )
  32 #    AUTOCONFBINDIR=/packages/gnu-inst-autoconf/2.57/bin
  33 #    AUTOCONFPATH="eval env PATH=${AUTOCONFBINDIR}:\$PATH "
  34 #    ;;
  35 #esac
  36
  37 # You can set AUTOMAKEPATH to empty if automake 1.9.x is already in your PATH.
  38 AUTOMAKEPATH=
  39
  40 # You can set GETTEXTPATH to empty if autopoint 0.15 is already in your PATH.
  41 GETTEXTPATH=
  42
  43 # You can set LIBTOOLPATH to empty if libtoolize 2.x is already in your PATH.
  44 LIBTOOLPATH=
  45
  46 # If you didn't set AUTOCONFPATH and AUTOMAKEPATH, you can also set the
  47 # variables AUTOCONF, AUTOHEADER, ACLOCAL, AUTOMAKE, AUTORECONF individually.
  48 if test -z "${AUTOCONF}" || test -n "${AUTOCONFPATH}"; then
  49   AUTOCONF="${AUTOCONFPATH}autoconf"
  50 fi
  51 if test -z "${AUTOHEADER}" || test -n "${AUTOCONFPATH}"; then
  52   AUTOHEADER="${AUTOCONFPATH}autoheader"
  53 fi
  54 if test -z "${ACLOCAL}" || test -n "${AUTOMAKEPATH}"; then
  55   ACLOCAL="${AUTOMAKEPATH}aclocal"
  56 fi
  57 if test -z "${AUTOMAKE}" || test -n "${AUTOMAKEPATH}"; then
  58   AUTOMAKE="${AUTOMAKEPATH}automake"
  59 fi
  60 if test -z "${AUTORECONF}" || test -n "${AUTOCONFPATH}"; then
  61   AUTORECONF="${AUTOCONFPATH}autoreconf"
  62 fi
  63
  64 # If you didn't set GETTEXTPATH, you can also set the variable AUTOPOINT.
  65 if test -z "${AUTOPOINT}" || test -n "${GETTEXTPATH}"; then
  66   AUTOPOINT="${GETTEXTPATH}autopoint"
  67 fi
  68
  69 # If you didn't set LIBTOOLPATH, you can also set the variable LIBTOOLIZE.
  70 if test -z "${LIBTOOLIZE}" || test -n "${LIBTOOLPATH}"; then
  71   LIBTOOLIZE="${LIBTOOLPATH}libtoolize"
  72 fi
  73
  74 # You can set MAKE.
  75 if test -z "${MAKE}"; then
  76   MAKE=make
  77 fi
  78
  79 # When using GNU sed, turn off as many GNU extensions as possible,
  80 # to minimize the risk of accidentally using non-portable features.
  81 # However, do this only for gnulib-tool itself, not for the code that
  82 # gnulib-tool generates, since we don't want "sed --posix" to leak
  83 # into makefiles. And do it only for sed versions 4.2 or newer,
  84 # because "sed --posix" is buggy in GNU sed 4.1.5, see
  85 # <http://lists.gnu.org/archive/html/bug-gnulib/2009-02/msg00225.html>.
  86 if (alias) > /dev/null 2>&1 \
  87    && echo | sed --posix -e d >/dev/null 2>&1 \
  88    && case `sed --version | sed -e 's/^[^0-9]*//' -e 1q` in \
  89         [1-3]* | 4.[01]*) false;; \
  90         *) true;; \
  91       esac \
  92    ; then
  93   # Define sed as an alias.
  94   # It is not always possible to use aliases. Aliases are guaranteed to work
  95   # if the executing shell is bash and either it is invoked as /bin/sh or
  96   # is a version >= 2.0, supporting shopt. This is the common case.
  97   # Two other approaches (use of a variable $sed or of a function func_sed
  98   # instead of an alias) require massive, fragile code changes.
  99   # An other approach (use of function sed) requires `which sed` - but
 100   # 'which' is hard to emulate, due to missing "test -x" on some platforms.
 101   if test -n "$BASH_VERSION"; then
 102     shopt -s expand_aliases >/dev/null 2>&1
 103   fi
 104   alias sed='sed --posix'
 105 fi
 106
 107 # sed_noop is a sed expression that does nothing.
 108 # An empty expression does not work with the native 'sed' on AIX 6.1.
 109 sed_noop='s,x,x,'
 110
 111 # sed_comments is true or false, depending whether 'sed' supports comments.
 112 # AIX 5.3 sed barfs over indented comments.
 113 if echo fo | sed -e 's/f/g/
 114 # s/o/u/
 115  # indented comment
 116 s/o/e/' 2>/dev/null | grep ge > /dev/null; then
 117   sed_comments=true
 118 else
 119   sed_comments=false
 120 fi
 121
 122 # func_usage
 123 # outputs to stdout the --help usage message.
 124 func_usage ()
 125 {
 126   echo "\
 127 Usage: gnulib-tool --list
 128        gnulib-tool --find filename
 129        gnulib-tool --import [module1 ... moduleN]
 130        gnulib-tool --add-import [module1 ... moduleN]
 131        gnulib-tool --remove-import [module1 ... moduleN]
 132        gnulib-tool --update
 133        gnulib-tool --create-testdir --dir=directory [module1 ... moduleN]
 134        gnulib-tool --create-megatestdir --dir=directory [module1 ... moduleN]
 135        gnulib-tool --test --dir=directory module1 ... moduleN
 136        gnulib-tool --megatest --dir=directory [module1 ... moduleN]
 137        gnulib-tool --extract-description module
 138        gnulib-tool --extract-comment module
 139        gnulib-tool --extract-status module
 140        gnulib-tool --extract-notice module
 141        gnulib-tool --extract-applicability module
 142        gnulib-tool --extract-filelist module
 143        gnulib-tool --extract-dependencies module
 144        gnulib-tool --extract-autoconf-snippet module
 145        gnulib-tool --extract-automake-snippet module
 146        gnulib-tool --extract-include-directive module
 147        gnulib-tool --extract-link-directive module
 148        gnulib-tool --extract-license module
 149        gnulib-tool --extract-maintainer module
 150        gnulib-tool --extract-tests-module module
 151        gnulib-tool --copy-file file [destination]
 152
 153 Operation modes:
 154
 155       --list                print the available module names
 156       --find                find the modules which contain the specified file
 157       --import              import the given modules into the current package
 158       --add-import          augment the list of imports from gnulib into the
 159                             current package, by adding the given modules;
 160                             if no modules are specified, update the current
 161                             package from the current gnulib
 162       --remove-import       reduce the list of imports from gnulib into the
 163                             current package, by removing the given modules
 164       --update              update the current package, restore files omitted
 165                             from version control
 166       --create-testdir      create a scratch package with the given modules
 167       --create-megatestdir  create a mega scratch package with the given modules
 168                             one by one and all together
 169       --test                test the combination of the given modules
 170                             (recommended to use CC=\"gcc -Wall\" here)
 171       --megatest            test the given modules one by one and all together
 172                             (recommended to use CC=\"gcc -Wall\" here)
 173       --extract-description        extract the description
 174       --extract-comment            extract the comment
 175       --extract-status             extract the status (obsolete etc.)
 176       --extract-notice             extract the notice or banner
 177       --extract-applicability      extract the applicability
 178       --extract-filelist           extract the list of files
 179       --extract-dependencies       extract the dependencies
 180       --extract-autoconf-snippet   extract the snippet for configure.ac
 181       --extract-automake-snippet   extract the snippet for library makefile
 182       --extract-include-directive  extract the #include directive
 183       --extract-link-directive     extract the linker directive
 184       --extract-license            report the license terms of the source files
 185                                    under lib/
 186       --extract-maintainer         report the maintainer(s) inside gnulib
 187       --extract-tests-module       report the unit test module, if it exists
 188       --copy-file                  copy a file that is not part of any module
 189
 190 General options:
 191
 192       --dir=DIRECTORY       Specify the target directory.
 193                             For --import, this specifies where your
 194                             configure.ac can be found.  Defaults to current
 195                             directory.
 196       --local-dir=DIRECTORY  Specify a local override directory where to look
 197                             up files before looking in gnulib's directory.
 198       --cache-modules       Enable module caching optimization.
 199       --no-cache-modules    Disable module caching optimization.
 200       --verbose             Increase verbosity. May be repeated.
 201       --quiet               Decrease verbosity. May be repeated.
 202
 203 Options for --import, --add/remove-import, --update:
 204
 205       --dry-run             Only print what would have been done.
 206
 207 Options for --import, --add/remove-import,
 208             --create-[mega]testdir, --[mega]test:
 209
 210       --with-tests          Include unit tests for the included modules.
 211       --with-obsolete       Include obsolete modules when they occur among the
 212                             dependencies. By default, dependencies to obsolete
 213                             modules are ignored.
 214       --with-c++-tests      Include even unit tests for C++ interoperability.
 215       --with-longrunning-tests
 216                             Include even unit tests that are long-runners.
 217       --with-privileged-tests
 218                             Include even unit tests that require root
 219                             privileges.
 220       --with-unportable-tests
 221                             Include even unit tests that fail on some platforms.
 222       --with-all-tests      Include all kinds of problematic unit tests.
 223       --avoid=MODULE        Avoid including the given MODULE. Useful if you
 224                             have code that provides equivalent functionality.
 225                             This option can be repeated.
 226       --conditional-dependencies
 227                             Support conditional dependencies (may save configure
 228                             time and object code).
 229       --no-conditional-dependencies
 230                             Don't use conditional dependencies.
 231       --libtool             Use libtool rules.
 232       --no-libtool          Don't use libtool rules.
 233
 234 Options for --import, --add/remove-import:
 235
 236       --lib=LIBRARY         Specify the library name.  Defaults to 'libgnu'.
 237       --source-base=DIRECTORY
 238                             Directory relative to --dir where source code is
 239                             placed (default \"lib\").
 240       --m4-base=DIRECTORY   Directory relative to --dir where *.m4 macros are
 241                             placed (default \"m4\").
 242       --po-base=DIRECTORY   Directory relative to --dir where *.po files are
 243                             placed (default \"po\").
 244       --doc-base=DIRECTORY  Directory relative to --dir where doc files are
 245                             placed (default \"doc\").
 246       --tests-base=DIRECTORY
 247                             Directory relative to --dir where unit tests are
 248                             placed (default \"tests\").
 249       --aux-dir=DIRECTORY   Directory relative to --dir where auxiliary build
 250                             tools are placed (default comes from configure.ac).
 251       --lgpl[=2|=3]         Abort if modules aren't available under the LGPL.
 252                             Also modify license template from GPL to LGPL.
 253                             The version number of the LGPL can be specified;
 254                             the default is currently LGPLv3.
 255       --makefile-name=NAME  Name of makefile in automake syntax in the
 256                             source-base and tests-base directories
 257                             (default \"Makefile.am\").
 258       --macro-prefix=PREFIX  Specify the prefix of the macros 'gl_EARLY' and
 259                             'gl_INIT'. Default is 'gl'.
 260       --po-domain=NAME      Specify the prefix of the i18n domain. Usually use
 261                             the package name. A suffix '-gnulib' is appended.
 262       --witness-c-macro=NAME  Specify the C macro that is defined when the
 263                             sources in this directory are compiled or used.
 264       --vc-files            Update version control related files.
 265       --no-vc-files         Don't update version control related files
 266                             (.gitignore and/or .cvsignore).
 267       --no-changelog        Don't update or create ChangeLog files.
 268
 269 Options for --create-[mega]testdir, --[mega]test:
 270
 271       --without-c++-tests   Exclude unit tests for C++ interoperability.
 272       --without-longrunning-tests
 273                             Exclude unit tests that are long-runners.
 274       --without-privileged-tests
 275                             Exclude unit tests that require root privileges.
 276       --without-unportable-tests
 277                             Exclude unit tests that fail on some platforms.
 278       --single-configure    Generate a single configure file, not a separate
 279                             configure file for the tests directory.
 280
 281 Options for --import, --add/remove-import, --update,
 282             --create-[mega]testdir, --[mega]test:
 283
 284   -s, --symbolic, --symlink Make symbolic links instead of copying files.
 285       --local-symlink       Make symbolic links instead of copying files, only
 286                             for files from the local override directory.
 287
 288 Options for --import, --add/remove-import, --update:
 289
 290   -S, --more-symlinks       Make symbolic links instead of copying files, and
 291                             don't replace copyright notices.
 292
 293 Report bugs to <bug-gnulib@gnu.org>."
 294 }
 295
 296 # func_version
 297 # outputs to stdout the --version message.
 298 func_version ()
 299 {
 300   func_gnulib_dir
 301   if test -d "$gnulib_dir"/.git \
 302      && (git --version) >/dev/null 2>/dev/null \
 303      && (date --version) >/dev/null 2>/dev/null; then
 304     # gnulib checked out from git.
 305     sed_extract_first_date='/^Date/{
 306 s/^Date:[        ]*//p
 307 q
 308 }'
 309     date=`cd "$gnulib_dir" && git log ChangeLog | sed -n -e "$sed_extract_first_date"`
 310     # Turn "Fri Mar 21 07:16:51 2008 -0600" into "Mar 21 2008 07:16:51 -0600".
 311     sed_year_before_time='s/^[^ ]* \([^ ]*\) \([0-9]*\) \([0-9:]*\) \([0-9]*\) /\1 \2 \4 \3 /'
 312     date=`echo "$date" | sed -e "$sed_year_before_time"`
 313     # Use GNU date to compute the time in GMT.
 314     date=`date -d "$date" -u +"%Y-%m-%d %H:%M:%S"`
 315     version=' '`cd "$gnulib_dir" && ./build-aux/git-version-gen /dev/null | sed -e 's/-dirty/-modified/'`
 316   else
 317     if test -d "$gnulib_dir"/CVS \
 318        && (cvs --version) >/dev/null 2>/dev/null; then
 319       # gnulib checked out from CVS.
 320       sed_extract_first_date='/^date: /{
 321 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
 322 q
 323 }'
 324       date=`cd "$gnulib_dir" && cvs log -N ChangeLog 2>/dev/null | sed -n -e "$sed_extract_first_date"`
 325     else
 326       # gnulib copy without versioning information.
 327       date=`sed -e 's/ .*//;q' "$gnulib_dir"/ChangeLog`
 328     fi
 329     version=
 330   fi
 331   year=`"$gnulib_dir"/build-aux/mdate-sh "$self_abspathname" | sed -e 's,^.* ,,'`
 332   echo "\
 333 gnulib-tool (GNU $package $date)$version
 334 Copyright (C) $year Free Software Foundation, Inc.
 335 License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
 336 This is free software: you are free to change and redistribute it.
 337 There is NO WARRANTY, to the extent permitted by law.
 338
 339 Written by" "Bruno Haible" "and" "Simon Josefsson"
 340 }
 341
 342 # func_emit_copyright_notice
 343 # outputs to stdout a header for a generated file.
 344 func_emit_copyright_notice ()
 345 {
 346   sed -n -e '/Copyright/ {
 347                p
 348                q
 349              }' < "$self_abspathname"
 350   echo "#"
 351   echo "# This file is free software; you can redistribute it and/or modify"
 352   echo "# it under the terms of the GNU General Public License as published by"
 353   echo "# the Free Software Foundation; either version 3 of the License, or"
 354   echo "# (at your option) any later version."
 355   echo "#"
 356   echo "# This file is distributed in the hope that it will be useful,"
 357   echo "# but WITHOUT ANY WARRANTY; without even the implied warranty of"
 358   echo "# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the"
 359   echo "# GNU General Public License for more details."
 360   echo "#"
 361   echo "# You should have received a copy of the GNU General Public License"
 362   echo "# along with this file.  If not, see <http://www.gnu.org/licenses/>."
 363   echo "#"
 364   echo "# As a special exception to the GNU General Public License,"
 365   echo "# this file may be distributed as part of a program that"
 366   echo "# contains a configuration script generated by Autoconf, under"
 367   echo "# the same distribution terms as the rest of that program."
 368   echo "#"
 369   echo "# Generated by gnulib-tool."
 370 }
 371
 372 # func_exit STATUS
 373 # exits with a given status.
 374 # This function needs to be used, rather than 'exit', when a 'trap' handler is
 375 # in effect that refers to $?.
 376 func_exit ()
 377 {
 378   (exit $1); exit $1
 379 }
 380
 381 # func_gnulib_dir
 382 # locates the directory where the gnulib repository lives
 383 # Input:
 384 # - progname                 name of this program
 385 # Sets variables
 386 # - self_abspathname         absolute pathname of gnulib-tool
 387 # - gnulib_dir               absolute pathname of gnulib repository
 388 func_gnulib_dir ()
 389 {
 390   case "$progname" in
 391     /*) self_abspathname="$progname" ;;
 392     */*) self_abspathname=`pwd`/"$progname" ;;
 393     *)
 394       # Look in $PATH.
 395       # Iterate through the elements of $PATH.
 396       # We use IFS=: instead of
 397       #   for d in `echo ":$PATH:" | sed -e 's/:::*/:.:/g' | sed -e 's/:/ /g'`
 398       # because the latter does not work when some PATH element contains spaces.
 399       # We use a canonicalized $pathx instead of $PATH, because empty PATH
 400       # elements are by definition equivalent to '.', however field splitting
 401       # according to IFS=: loses empty fields in many shells:
 402       #   - /bin/sh on OSF/1 and Solaris loses all empty fields (at the
 403       #     beginning, at the end, and in the middle),
 404       #   - /bin/sh on IRIX and /bin/ksh on IRIX and OSF/1 lose empty fields
 405       #     at the beginning and at the end,
 406       #   - GNU bash, /bin/sh on AIX and HP-UX, and /bin/ksh on AIX, HP-UX,
 407       #     Solaris lose empty fields at the end.
 408       # The 'case' statement is an optimization, to avoid evaluating the
 409       # explicit canonicalization command when $PATH contains no empty fields.
 410       self_abspathname=
 411       if test "${PATH_SEPARATOR+set}" != set; then
 412         # Determine PATH_SEPARATOR by trying to find /bin/sh in a PATH which
 413         # contains only /bin. Note that ksh looks also at the FPATH variable,
 414         # so we have to set that as well for the test.
 415         PATH_SEPARATOR=:
 416         (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 \
 417           && { (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 \
 418                  || PATH_SEPARATOR=';'
 419              }
 420       fi
 421       if test "$PATH_SEPARATOR" = ";"; then
 422         # On Windows, programs are searched in "." before $PATH.
 423         pathx=".;$PATH"
 424       else
 425         # On Unix, we have to convert empty PATH elements to ".".
 426         pathx="$PATH"
 427         case :$PATH: in
 428           *::*)
 429             pathx=`echo ":$PATH:" | sed -e 's/:::*/:.:/g' -e 's/^://' -e 's/:\$//'`
 430             ;;
 431         esac
 432       fi
 433       save_IFS="$IFS"
 434       IFS="$PATH_SEPARATOR"
 435       for d in $pathx; do
 436         IFS="$save_IFS"
 437         test -z "$d" && d=.
 438         if test -x "$d/$progname" && test ! -d "$d/$progname"; then
 439           self_abspathname="$d/$progname"
 440           break
 441         fi
 442       done
 443       IFS="$save_IFS"
 444       if test -z "$self_abspathname"; then
 445         func_fatal_error "could not locate the gnulib-tool program - how did you invoke it?"
 446       fi
 447       ;;
 448   esac
 449   while test -h "$self_abspathname"; do
 450     # Resolve symbolic link.
 451     linkval=`func_readlink "$self_abspathname"`
 452     test -n "$linkval" || break
 453     case "$linkval" in
 454       /* ) self_abspathname="$linkval" ;;
 455       * ) self_abspathname=`echo "$self_abspathname" | sed -e 's,/[^/]*$,,'`/"$linkval" ;;
 456     esac
 457   done
 458   gnulib_dir=`echo "$self_abspathname" | sed -e 's,/[^/]*$,,'`
 459 }
 460
 461 # func_tmpdir
 462 # creates a temporary directory.
 463 # Input:
 464 # - progname                 name of this program
 465 # Sets variable
 466 # - tmp             pathname of freshly created temporary directory
 467 func_tmpdir ()
 468 {
 469   # Use the environment variable TMPDIR, falling back to /tmp. This allows
 470   # users to specify a different temporary directory, for example, if their
 471   # /tmp is filled up or too small.
 472   : ${TMPDIR=/tmp}
 473   {
 474     # Use the mktemp program if available. If not available, hide the error
 475     # message.
 476     tmp=`(umask 077 && mktemp -d "$TMPDIR/glXXXXXX") 2>/dev/null` &&
 477     test -n "$tmp" && test -d "$tmp"
 478   } ||
 479   {
 480     # Use a simple mkdir command. It is guaranteed to fail if the directory
 481     # already exists.  $RANDOM is bash specific and expands to empty in shells
 482     # other than bash, ksh and zsh.  Its use does not increase security;
 483     # rather, it minimizes the probability of failure in a very cluttered /tmp
 484     # directory.
 485     tmp=$TMPDIR/gl$$-$RANDOM
 486     (umask 077 && mkdir "$tmp")
 487   } ||
 488   {
 489     echo "$progname: cannot create a temporary directory in $TMPDIR" >&2
 490     func_exit 1
 491   }
 492 }
 493
 494 # func_append var value
 495 # appends the given value to the shell variable var.
 496 if ( foo=bar; foo+=baz && test "$foo" = barbaz ) >/dev/null 2>&1; then
 497   # Use bash's += operator. It reduces complexity of appending repeatedly to
 498   # a single variable from O(n^2) to O(n).
 499   func_append ()
 500   {
 501     eval "$1+=\"\$2\""
 502   }
 503   fast_func_append=true
 504 else
 505   func_append ()
 506   {
 507     eval "$1=\"\$$1\$2\""
 508   }
 509   fast_func_append=false
 510 fi
 511
 512 # func_remove_prefix var prefix
 513 # removes the given prefix from the value of the shell variable var.
 514 # var should be the name of a shell variable.
 515 # Its value should not contain a newline and not start or end with whitespace.
 516 # prefix should not contain the characters "$`\{}[]^|.
 517 if ( foo=bar; eval 'test "${foo#b}" = ar' ) >/dev/null 2>&1; then
 518   func_remove_prefix ()
 519   {
 520     eval "$1=\${$1#\$2}"
 521   }
 522   fast_func_remove_prefix=true
 523 else
 524   func_remove_prefix ()
 525   {
 526     eval "value=\"\$$1\""
 527     prefix="$2"
 528     case "$prefix" in
 529       *.*)
 530         sed_escape_dots='s/\([.]\)/\\\1/g'
 531         prefix=`echo "$prefix" | sed -e "$sed_escape_dots"`
 532         ;;
 533     esac
 534     value=`echo "$value" | sed -e "s|^${prefix}||"`
 535     eval "$1=\"\$value\""
 536   }
 537   fast_func_remove_prefix=false
 538 fi
 539
 540 # func_remove_suffix var suffix
 541 # removes the given suffix from the value of the shell variable var.
 542 # var should be the name of a shell variable.
 543 # Its value should not contain a newline and not start or end with whitespace.
 544 # suffix should not contain the characters "$`\{}[]^|.
 545 if ( foo=bar; eval 'test "${foo%r}" = ba' ) >/dev/null 2>&1; then
 546   func_remove_suffix ()
 547   {
 548     eval "$1=\${$1%\$2}"
 549   }
 550   fast_func_remove_suffix=true
 551 else
 552   func_remove_suffix ()
 553   {
 554     eval "value=\"\$$1\""
 555     suffix="$2"
 556     case "$suffix" in
 557       *.*)
 558         sed_escape_dots='s/\([.]\)/\\\1/g'
 559         suffix=`echo "$suffix" | sed -e "$sed_escape_dots"`
 560         ;;
 561     esac
 562     value=`echo "$value" | sed -e "s|${suffix}\$||"`
 563     eval "$1=\"\$value\""
 564   }
 565   fast_func_remove_suffix=false
 566 fi
 567
 568 # func_fatal_error message
 569 # outputs to stderr a fatal error message, and terminates the program.
 570 # Input:
 571 # - progname                 name of this program
 572 func_fatal_error ()
 573 {
 574   echo "$progname: *** $1" 1>&2
 575   echo "$progname: *** Stop." 1>&2
 576   func_exit 1
 577 }
 578
 579 # func_warning message
 580 # Outputs to stderr a warning message,
 581 func_warning ()
 582 {
 583   echo "gnulib-tool: warning: $1" 1>&2
 584 }
 585
 586 # func_readlink SYMLINK
 587 # outputs the target of the given symlink.
 588 if (type -p readlink) > /dev/null 2>&1; then
 589   func_readlink ()
 590   {
 591     # Use the readlink program from GNU coreutils.
 592     readlink "$1"
 593   }
 594 else
 595   func_readlink ()
 596   {
 597     # Use two sed invocations. A single sed -n -e 's,^.* -> \(.*\)$,\1,p'
 598     # would do the wrong thing if the link target contains " -> ".
 599     LC_ALL=C ls -l "$1" | sed -e 's, -> ,#%%#,' | sed -n -e 's,^.*#%%#\(.*\)$,\1,p'
 600   }
 601 fi
 602
 603 # func_relativize DIR1 DIR2
 604 # computes a relative pathname RELDIR such that DIR1/RELDIR = DIR2.
 605 # Input:
 606 # - DIR1            relative pathname, relative to the current directory
 607 # - DIR2            relative pathname, relative to the current directory
 608 # Output:
 609 # - reldir          relative pathname of DIR2, relative to DIR1
 610 func_relativize ()
 611 {
 612   dir0=`pwd`
 613   dir1="$1"
 614   dir2="$2"
 615   sed_first='s,^\([^/]*\)/.*$,\1,'
 616   sed_rest='s,^[^/]*/*,,'
 617   sed_last='s,^.*/\([^/]*\)$,\1,'
 618   sed_butlast='s,/*[^/]*$,,'
 619   while test -n "$dir1"; do
 620     first=`echo "$dir1" | sed -e "$sed_first"`
 621     if test "$first" != "."; then
 622       if test "$first" = ".."; then
 623         dir2=`echo "$dir0" | sed -e "$sed_last"`/"$dir2"
 624         dir0=`echo "$dir0" | sed -e "$sed_butlast"`
 625       else
 626         first2=`echo "$dir2" | sed -e "$sed_first"`
 627         if test "$first2" = "$first"; then
 628           dir2=`echo "$dir2" | sed -e "$sed_rest"`
 629         else
 630           dir2="../$dir2"
 631         fi
 632         dir0="$dir0"/"$first"
 633       fi
 634     fi
 635     dir1=`echo "$dir1" | sed -e "$sed_rest"`
 636   done
 637   reldir="$dir2"
 638 }
 639
 640 # func_relconcat DIR1 DIR2
 641 # computes a relative pathname DIR1/DIR2, with obvious simplifications.
 642 # Input:
 643 # - DIR1            relative pathname, relative to the current directory
 644 # - DIR2            relative pathname, relative to DIR1
 645 # Output:
 646 # - relconcat       DIR1/DIR2, relative to the current directory
 647 func_relconcat ()
 648 {
 649   dir1="$1"
 650   dir2="$2"
 651   sed_first='s,^\([^/]*\)/.*$,\1,'
 652   sed_rest='s,^[^/]*/*,,'
 653   sed_last='s,^.*/\([^/]*\)$,\1,'
 654   sed_butlast='s,/*[^/]*$,,'
 655   while true; do
 656     first=`echo "$dir2" | sed -e "$sed_first"`
 657     if test "$first" = "."; then
 658       dir2=`echo "$dir2" | sed -e "$sed_rest"`
 659       if test -z "$dir2"; then
 660         relconcat="$dir1"
 661         break
 662       fi
 663     else
 664       last=`echo "$dir1" | sed -e "$sed_last"`
 665       while test "$last" = "."; do
 666         dir1=`echo "$dir1" | sed -e "$sed_butlast"`
 667         last=`echo "$dir1" | sed -e "$sed_last"`
 668       done
 669       if test -z "$dir1"; then
 670         relconcat="$dir2"
 671         break
 672       fi
 673       if test "$first" = ".."; then
 674         if test "$last" = ".."; then
 675           relconcat="$dir1/$dir2"
 676           break
 677         fi
 678         dir1=`echo "$dir1" | sed -e "$sed_butlast"`
 679         dir2=`echo "$dir2" | sed -e "$sed_rest"`
 680         if test -z "$dir1"; then
 681           relconcat="$dir2"
 682           break
 683         fi
 684         if test -z "$dir2"; then
 685           relconcat="$dir1"
 686           break
 687         fi
 688       else
 689         relconcat="$dir1/$dir2"
 690         break
 691       fi
 692     fi
 693   done
 694 }
 695
 696 # func_ln SRC DEST
 697 # Like ln -s, except that SRC is given relative to the current directory (or
 698 # absolute), not given relative to the directory of DEST.
 699 func_ln ()
 700 {
 701   case "$1" in
 702     /*)
 703       ln -s "$1" "$2" ;;
 704     *) # SRC is relative.
 705       case "$2" in
 706         /*)
 707           ln -s "`pwd`/$1" "$2" ;;
 708         *) # DEST is relative too.
 709           ln_destdir=`echo "$2" | sed -e 's,[^/]*$,,'`
 710           test -n "$ln_destdir" || ln_destdir="."
 711           func_relativize "$ln_destdir" "$1"
 712           ln -s "$reldir" "$2"
 713           ;;
 714       esac
 715       ;;
 716   esac
 717 }
 718
 719 # func_ln_if_changed SRC DEST
 720 # Like func_ln, but avoids munging timestamps if the link is correct.
 721 func_ln_if_changed ()
 722 {
 723   if test $# -ne 2; then
 724     echo "usage: func_ln_if_changed SRC DEST" >&2
 725   fi
 726   ln_target=`func_readlink "$2"`
 727   if test -h "$2" && test "$1" = "$ln_target"; then
 728     :
 729   else
 730     rm -f "$2"
 731     func_ln "$1" "$2"
 732   fi
 733 }
 734
 735 # Ensure an 'echo' command that
 736 #   1. does not interpret backslashes and
 737 #   2. does not print an error message "broken pipe" when writing into a pipe
 738 #      with no writers.
 739 #
 740 # Test cases for problem 1:
 741 #   echo '\n' | wc -l                 prints 1 when OK, 2 when KO
 742 #   echo '\t' | grep t > /dev/null    has return code 0 when OK, 1 when KO
 743 # Test cases for problem 2:
 744 #   echo hi | true                    frequently prints
 745 #                                     "bash: echo: write error: Broken pipe"
 746 #                                     to standard error in bash 3.2.
 747 #
 748 # Problem 1 is a weird heritage from SVR4. BSD got it right (except that
 749 # BSD echo interprets '-n' as an option, which is also not desirable).
 750 # Nowadays the problem occurs in 4 situations:
 751 # - in bash, when the shell option xpg_echo is set (bash >= 2.04)
 752 #            or when it was built with --enable-usg-echo-default (bash >= 2.0)
 753 #            or when it was built with DEFAULT_ECHO_TO_USG (bash < 2.0),
 754 # - in zsh, when sh-emulation is not set,
 755 # - in ksh (e.g. AIX /bin/sh and Solaris /usr/xpg4/bin/sh are ksh instances,
 756 #           and HP-UX /bin/sh and IRIX /bin/sh behave similarly),
 757 # - in Solaris /bin/sh and OSF/1 /bin/sh.
 758 # We try the following workarounds:
 759 # - for all: respawn using $CONFIG_SHELL if that is set and works.
 760 # - for bash >= 2.04: unset the shell option xpg_echo.
 761 # - for bash >= 2.0: define echo to a function that uses the printf built-in.
 762 # - for bash < 2.0: define echo to a function that uses cat of a here document.
 763 # - for zsh: turn sh-emulation on.
 764 # - for ksh: alias echo to 'print -r'.
 765 # - for ksh: alias echo to a function that uses cat of a here document.
 766 # - for Solaris /bin/sh and OSF/1 /bin/sh: respawn using /bin/ksh and rely on
 767 #   the ksh workaround.
 768 # - otherwise: respawn using /bin/sh and rely on the workarounds.
 769 # When respawning, we pass --no-reexec as first argument, so as to avoid
 770 # turning this script into a fork bomb in unlucky situations.
 771 #
 772 # Problem 2 is specific to bash 3.2 and affects the 'echo' built-in, but not
 773 # the 'printf' built-in. See
 774 #   <http://lists.gnu.org/archive/html/bug-bash/2008-12/msg00050.html>
 775 #   <http://lists.gnu.org/archive/html/bug-gnulib/2010-02/msg00154.html>
 776 # The workaround is: define echo to a function that uses the printf built-in.
 777 have_echo=
 778 if echo '\t' | grep t > /dev/null; then
 779   have_echo=yes # Lucky!
 780 fi
 781 # Try the workarounds.
 782 # Respawn using $CONFIG_SHELL if that is set and works.
 783 if test -z "$have_echo" \
 784    && test "X$1" != "X--no-reexec" \
 785    && test -n "$CONFIG_SHELL" \
 786    && test -f "$CONFIG_SHELL" \
 787    && $CONFIG_SHELL -c "echo '\\t' | grep t > /dev/null"; then
 788   exec $CONFIG_SHELL "$0" --no-reexec "$@"
 789   exit 127
 790 fi
 791 # For bash >= 2.04: unset the shell option xpg_echo.
 792 if test -z "$have_echo" \
 793    && test -n "$BASH_VERSION" \
 794    && (shopt -o xpg_echo; echo '\t' | grep t > /dev/null) 2>/dev/null; then
 795   shopt -o xpg_echo
 796   have_echo=yes
 797 fi
 798 # For bash >= 2.0: define echo to a function that uses the printf built-in.
 799 # For bash < 2.0: define echo to a function that uses cat of a here document.
 800 # (There is no win in using 'printf' over 'cat' if it is not a shell built-in.)
 801 # Also handle problem 2, specific to bash 3.2, here.
 802 if { test -z "$have_echo" \
 803      || case "$BASH_VERSION" in 3.2*) true;; *) false;; esac; \
 804    } \
 805    && test -n "$BASH_VERSION"; then \
 806   if type printf 2>/dev/null | grep / > /dev/null; then
 807     # 'printf' is not a shell built-in.
 808 echo ()
 809 {
 810 cat <<EOF
 811 $*
 812 EOF
 813 }
 814   else
 815     # 'printf' is a shell built-in.
 816 echo ()
 817 {
 818   printf '%s\n' "$*"
 819 }
 820   fi
 821   if echo '\t' | grep t > /dev/null; then
 822     have_echo=yes
 823   fi
 824 fi
 825 # For zsh: turn sh-emulation on.
 826 if test -z "$have_echo" \
 827    && test -n "$ZSH_VERSION" \
 828    && (emulate sh) >/dev/null 2>&1; then
 829   emulate sh
 830 fi
 831 # For ksh: alias echo to 'print -r'.
 832 if test -z "$have_echo" \
 833    && (type print) >/dev/null 2>&1; then
 834   # A 'print' command exists.
 835   if type print 2>/dev/null | grep / > /dev/null; then
 836     :
 837   else
 838     # 'print' is a shell built-in.
 839     if (print -r '\told' | grep told > /dev/null) 2>/dev/null; then
 840       # 'print' is the ksh shell built-in.
 841       alias echo='print -r'
 842     fi
 843   fi
 844 fi
 845 if test -z "$have_echo" \
 846    && echo '\t' | grep t > /dev/null; then
 847   have_echo=yes
 848 fi
 849 # For ksh: alias echo to a function that uses cat of a here document.
 850 # The ksh manual page says:
 851 #   "Aliasing is performed when scripts are read, not while they are executed.
 852 #    Therefore, for an alias to take effect, the alias definition command has
 853 #    to be executed before the command which references the alias is read."
 854 # Because of this, we have to play strange tricks with have_echo, to ensure
 855 # that the top-level statement containing the test starts after the 'alias'
 856 # command.
 857 if test -z "$have_echo"; then
 858   bsd_echo ()
 859 {
 860 cat <<EOF
 861 $*
 862 EOF
 863 }
 864   if (alias echo=bsd_echo) 2>/dev/null; then
 865     alias echo=bsd_echo 2>/dev/null
 866   fi
 867 fi
 868 if test -z "$have_echo" \
 869    && echo '\t' | grep t > /dev/null; then
 870   have_echo=yes
 871 fi
 872 if test -z "$have_echo"; then
 873   if (alias echo=bsd_echo) 2>/dev/null; then
 874     unalias echo 2>/dev/null
 875   fi
 876 fi
 877 # For Solaris /bin/sh and OSF/1 /bin/sh: respawn using /bin/ksh.
 878 if test -z "$have_echo" \
 879    && test "X$1" != "X--no-reexec" \
 880    && test -f /bin/ksh; then
 881   exec /bin/ksh "$0" --no-reexec "$@"
 882   exit 127
 883 fi
 884 # Otherwise: respawn using /bin/sh.
 885 if test -z "$have_echo" \
 886    && test "X$1" != "X--no-reexec" \
 887    && test -f /bin/sh; then
 888   exec /bin/sh "$0" --no-reexec "$@"
 889   exit 127
 890 fi
 891 if test -z "$have_echo"; then
 892   func_fatal_error "Shell does not support 'echo' correctly. Please install GNU bash and set the environment variable CONFIG_SHELL to point to it."
 893 fi
 894 if echo '\t' | grep t > /dev/null; then
 895   : # Works fine now.
 896 else
 897   func_fatal_error "Shell does not support 'echo' correctly. Workaround does not work. Please report this as a bug to bug-gnulib@gnu.org."
 898 fi
 899 if test "X$1" = "X--no-reexec"; then
 900   shift
 901 fi
 902
 903 # Command-line option processing.
 904 # Removes the OPTIONS from the arguments. Sets the variables:
 905 # - mode            list or import or add-import or remove-import or update
 906 #                   or create-testdir or create-megatestdir
 907 # - destdir         from --dir
 908 # - local_gnulib_dir  from --local-dir
 909 # - modcache        true or false, from --cache-modules/--no-cache-modules
 910 # - verbose         integer, default 0, inc/decremented by --verbose/--quiet
 911 # - libname, supplied_libname  from --lib
 912 # - sourcebase      from --source-base
 913 # - m4base          from --m4-base
 914 # - pobase          from --po-base
 915 # - docbase         from --doc-base
 916 # - testsbase       from --tests-base
 917 # - auxdir          from --aux-dir
 918 # - inctests        true if --with-tests was given, blank otherwise
 919 # - incobsolete     true if --with-obsolete was given, blank otherwise
 920 # - inc_cxx_tests   true if --with-c++-tests was given, blank otherwise
 921 # - inc_longrunning_tests  true if --with-longrunning-tests was given, blank
 922 #                          otherwise
 923 # - inc_privileged_tests  true if --with-privileged-tests was given, blank
 924 #                         otherwise
 925 # - inc_unportable_tests  true if --with-unportable-tests was given, blank
 926 #                         otherwise
 927 # - inc_all_tests   true if --with-all-tests was given, blank otherwise
 928 # - excl_cxx_tests  true if --without-c++-tests was given, blank otherwise
 929 # - excl_longrunning_tests  true if --without-longrunning-tests was given,
 930 #                           blank otherwise
 931 # - excl_privileged_tests  true if --without-privileged-tests was given, blank
 932 #                          otherwise
 933 # - excl_unportable_tests  true if --without-unportable-tests was given, blank
 934 #                          otherwise
 935 # - single_configure  true if --single-configure was given, false otherwise
 936 # - avoidlist       list of modules to avoid, from --avoid
 937 # - cond_dependencies  true if --conditional-dependencies was given, false if
 938 #                      --no-conditional-dependencies was given, blank otherwise
 939 # - lgpl            yes or a number if --lgpl was given, blank otherwise
 940 # - makefile_name   from --makefile-name
 941 # - libtool         true if --libtool was given, false if --no-libtool was
 942 #                   given, blank otherwise
 943 # - macro_prefix    from --macro-prefix
 944 # - po_domain       from --po-domain
 945 # - witness_c_macro  from --witness-c-macro
 946 # - vc_files        true if --vc-files was given, false if --no-vc-files was
 947 #                   given, blank otherwise
 948 # - autoconf_minversion  minimum supported autoconf version
 949 # - do_changelog    false if --no-changelog was given, : otherwise
 950 # - doit            : if actions shall be executed, false if only to be printed
 951 # - symbolic        true if --symlink or --more-symlinks was given, blank
 952 #                   otherwise
 953 # - lsymbolic       true if --local-symlink was given, blank otherwise
 954 # - do_copyrights   blank if --more-symlinks was given, true otherwise
 955 {
 956   mode=
 957   destdir=
 958   local_gnulib_dir=
 959   modcache=true
 960   verbose=0
 961   libname=libgnu
 962   supplied_libname=
 963   sourcebase=
 964   m4base=
 965   pobase=
 966   docbase=
 967   testsbase=
 968   auxdir=
 969   inctests=
 970   incobsolete=
 971   inc_cxx_tests=
 972   inc_longrunning_tests=
 973   inc_privileged_tests=
 974   inc_unportable_tests=
 975   inc_all_tests=
 976   excl_cxx_tests=
 977   excl_longrunning_tests=
 978   excl_privileged_tests=
 979   excl_unportable_tests=
 980   single_configure=false
 981   avoidlist=
 982   cond_dependencies=
 983   lgpl=
 984   makefile_name=
 985   libtool=
 986   macro_prefix=
 987   po_domain=
 988   witness_c_macro=
 989   vc_files=
 990   do_changelog=:
 991   doit=:
 992   symbolic=
 993   lsymbolic=
 994   do_copyrights=true
 995
 996   supplied_opts="$@"
 997
 998   while test $# -gt 0; do
 999     case "$1" in
1000       --list | --lis )
1001         mode=list
1002         shift ;;
1003       --find | --fin | --fi | --f )
1004         mode=find
1005         shift ;;
1006       --import | --impor | --impo | --imp | --im | --i )
1007         mode=import
1008         shift ;;
1009       --add-import | --add-impor | --add-impo | --add-imp | --add-im | --add-i | --add- | --add | --ad )
1010         mode=add-import
1011         shift ;;
1012       --remove-import | --remove-impor | --remove-impo | --remove-imp | --remove-im | --remove-i | --remove- | --remove | --remov | --remo | --rem | --re | --r )
1013         mode=remove-import
1014         shift ;;
1015       --update | --updat | --upda | --upd | --up | --u )
1016         mode=update
1017         shift ;;
1018       --create-testdir | --create-testdi | --create-testd | --create-test | --create-tes | --create-te | --create-t )
1019         mode=create-testdir
1020         shift ;;
1021       --create-megatestdir | --create-megatestdi | --create-megatestd | --create-megatest | --create-megates | --create-megate | --create-megat | --create-mega | --create-meg | --create-me | --create-m )
1022         mode=create-megatestdir
1023         shift ;;
1024       --test | --tes | --te | --t )
1025         mode=test
1026         shift ;;
1027       --megatest | --megates | --megate | --megat | --mega | --meg | --me | --m )
1028         mode=megatest
1029         shift ;;
1030       --extract-* )
1031         mode=`echo "X$1" | sed -e 's/^X--//'`
1032         shift ;;
1033       --copy-file | --copy-fil | --copy-fi | --copy-f | --copy- | --copy | --cop )
1034         mode=copy-file
1035         shift ;;
1036       --dir )
1037         shift
1038         if test $# = 0; then
1039           func_fatal_error "missing argument for --dir"
1040         fi
1041         destdir=$1
1042         shift ;;
1043       --dir=* )
1044         destdir=`echo "X$1" | sed -e 's/^X--dir=//'`
1045         shift ;;
1046       --local-dir )
1047         shift
1048         if test $# = 0; then
1049           func_fatal_error "missing argument for --local-dir"
1050         fi
1051         local_gnulib_dir=$1
1052         shift ;;
1053       --local-dir=* )
1054         local_gnulib_dir=`echo "X$1" | sed -e 's/^X--local-dir=//'`
1055         shift ;;
1056       --cache-modules | --cache-module | --cache-modul | --cache-modu | --cache-mod | --cache-mo | --cache-m | --cache- | --cache | --cach | --cac | --ca )
1057         modcache=true
1058         shift ;;
1059       --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 )
1060         modcache=false
1061         shift ;;
1062       --verbose | --verbos | --verbo | --verb )
1063         verbose=`expr $verbose + 1`
1064         shift ;;
1065       --quiet | --quie | --qui | --qu | --q )
1066         verbose=`expr $verbose - 1`
1067         shift ;;
1068       --lib )
1069         shift
1070         if test $# = 0; then
1071           func_fatal_error "missing argument for --lib"
1072         fi
1073         libname=$1
1074         supplied_libname=true
1075         shift ;;
1076       --lib=* )
1077         libname=`echo "X$1" | sed -e 's/^X--lib=//'`
1078         supplied_libname=true
1079         shift ;;
1080       --source-base )
1081         shift
1082         if test $# = 0; then
1083           func_fatal_error "missing argument for --source-base"
1084         fi
1085         sourcebase=$1
1086         shift ;;
1087       --source-base=* )
1088         sourcebase=`echo "X$1" | sed -e 's/^X--source-base=//'`
1089         shift ;;
1090       --m4-base )
1091         shift
1092         if test $# = 0; then
1093           func_fatal_error "missing argument for --m4-base"
1094         fi
1095         m4base=$1
1096         shift ;;
1097       --m4-base=* )
1098         m4base=`echo "X$1" | sed -e 's/^X--m4-base=//'`
1099         shift ;;
1100       --po-base )
1101         shift
1102         if test $# = 0; then
1103           func_fatal_error "missing argument for --po-base"
1104         fi
1105         pobase=$1
1106         shift ;;
1107       --po-base=* )
1108         pobase=`echo "X$1" | sed -e 's/^X--po-base=//'`
1109         shift ;;
1110       --doc-base )
1111         shift
1112         if test $# = 0; then
1113           func_fatal_error "missing argument for --doc-base"
1114         fi
1115         docbase=$1
1116         shift ;;
1117       --doc-base=* )
1118         docbase=`echo "X$1" | sed -e 's/^X--doc-base=//'`
1119         shift ;;
1120       --tests-base )
1121         shift
1122         if test $# = 0; then
1123           func_fatal_error "missing argument for --tests-base"
1124         fi
1125         testsbase=$1
1126         shift ;;
1127       --tests-base=* )
1128         testsbase=`echo "X$1" | sed -e 's/^X--tests-base=//'`
1129         shift ;;
1130       --aux-dir )
1131         shift
1132         if test $# = 0; then
1133           func_fatal_error "missing argument for --aux-dir"
1134         fi
1135         auxdir=$1
1136         shift ;;
1137       --aux-dir=* )
1138         auxdir=`echo "X$1" | sed -e 's/^X--aux-dir=//'`
1139         shift ;;
1140       --with-tests | --with-test | --with-tes | --with-te | --with-t)
1141         inctests=true
1142         shift ;;
1143       --with-obsolete | --with-obsolet | --with-obsole | --with-obsol | --with-obso | --with-obs | --with-ob | --with-o)
1144         incobsolete=true
1145         shift ;;
1146       --with-c++-tests | --with-c++-test | --with-c++-tes | --with-c++-te | --with-c++-t | --with-c++- | --with-c++ | --with-c+ | --with-c)
1147         inc_cxx_tests=true
1148         shift ;;
1149       --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)
1150         inc_longrunning_tests=true
1151         shift ;;
1152       --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)
1153         inc_privileged_tests=true
1154         shift ;;
1155       --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)
1156         inc_unportable_tests=true
1157         shift ;;
1158       --with-all-tests | --with-all-test | --with-all-tes | --with-all-te | --with-all-t | --with-all- | --with-all | --with-al | --with-a)
1159         inc_all_tests=true
1160         shift ;;
1161       --without-c++-tests | --without-c++-test | --without-c++-tes | --without-c++-te | --without-c++-t | --without-c++- | --without-c++ | --without-c+ | --without-c)
1162         excl_cxx_tests=true
1163         shift ;;
1164       --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)
1165         excl_longrunning_tests=true
1166         shift ;;
1167       --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)
1168         excl_privileged_tests=true
1169         shift ;;
1170       --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)
1171         excl_unportable_tests=true
1172         shift ;;
1173       --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)
1174         single_configure=true
1175         shift ;;
1176       --avoid )
1177         shift
1178         if test $# = 0; then
1179           func_fatal_error "missing argument for --avoid"
1180         fi
1181         func_append avoidlist " $1"
1182         shift ;;
1183       --avoid=* )
1184         arg=`echo "X$1" | sed -e 's/^X--avoid=//'`
1185         func_append avoidlist " $arg"
1186         shift ;;
1187       --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)
1188         cond_dependencies=true
1189         shift ;;
1190       --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)
1191         cond_dependencies=false
1192         shift ;;
1193       --lgpl )
1194         lgpl=yes
1195         shift ;;
1196       --lgpl=* )
1197         arg=`echo "X$1" | sed -e 's/^X--lgpl=//'`
1198         case "$arg" in
1199           2 | 3) ;;
1200           *) func_fatal_error "invalid LGPL version number for --lgpl" ;;
1201         esac
1202         lgpl=$arg
1203         shift ;;
1204       --makefile-name )
1205         shift
1206         if test $# = 0; then
1207           func_fatal_error "missing argument for --makefile-name"
1208         fi
1209         makefile_name="$1"
1210         shift ;;
1211       --makefile-name=* )
1212         makefile_name=`echo "X$1" | sed -e 's/^X--makefile-name=//'`
1213         shift ;;
1214       --libtool )
1215         libtool=true
1216         shift ;;
1217       --no-libtool )
1218         libtool=false
1219         shift ;;
1220       --macro-prefix )
1221         shift
1222         if test $# = 0; then
1223           func_fatal_error "missing argument for --macro-prefix"
1224         fi
1225         macro_prefix="$1"
1226         shift ;;
1227       --macro-prefix=* )
1228         macro_prefix=`echo "X$1" | sed -e 's/^X--macro-prefix=//'`
1229         shift ;;
1230       --po-domain )
1231         shift
1232         if test $# = 0; then
1233           func_fatal_error "missing argument for --po-domain"
1234         fi
1235         po_domain="$1"
1236         shift ;;
1237       --po-domain=* )
1238         po_domain=`echo "X$1" | sed -e 's/^X--po-domain=//'`
1239         shift ;;
1240       --witness-c-macro )
1241         shift
1242         if test $# = 0; then
1243           func_fatal_error "missing argument for --witness-c-macro"
1244         fi
1245         witness_c_macro="$1"
1246         shift ;;
1247       --witness-c-macro=* )
1248         witness_c_macro=`echo "X$1" | sed -e 's/^X--witness-c-macro=//'`
1249         shift ;;
1250       --vc-files )
1251         vc_files=true
1252         shift ;;
1253       --no-vc-files )
1254         vc_files=false
1255         shift ;;
1256       --no-changelog | --no-changelo | --no-changel | --no-change | --no-chang | --no-chan | --no-cha | --no-ch )
1257         do_changelog=false
1258         shift ;;
1259       --dry-run )
1260         doit=false
1261         shift ;;
1262       -s | --symbolic | --symboli | --symbol | --symbo | --symb | --symlink | --symlin | --symli | --syml | --sym | --sy )
1263         symbolic=true
1264         shift ;;
1265       --local-symlink | --local-symlin | --local-symli | --local-syml | --local-sym | --local-sy | --local-s )
1266         lsymbolic=true
1267         shift ;;
1268       -S | --more-symlinks | --more-symlink | --more-symlin | --more-symli | --more-syml | --more-sym | --more-sy | --more-s | --more- | --more | --mor | --mo )
1269         symbolic=true
1270         do_copyrights=
1271         shift ;;
1272       --help | --hel | --he | --h )
1273         func_usage
1274         func_exit $? ;;
1275       --version | --versio | --versi | --vers )
1276         func_version
1277         func_exit $? ;;
1278       -- )
1279         # Stop option processing
1280         shift
1281         break ;;
1282       -* )
1283         echo "gnulib-tool: unknown option $1" 1>&2
1284         echo "Try 'gnulib-tool --help' for more information." 1>&2
1285         func_exit 1 ;;
1286       * )
1287         break ;;
1288     esac
1289   done
1290
1291   if case "$mode" in import | add-import | remove-import) true;; *) false;; esac; then
1292     if test -n "$excl_cxx_tests" || test -n "$excl_longrunning_tests" \
1293        || test -n "$excl_privileged_tests" || test -n "$excl_unportable_tests" \
1294        || test "$single_configure" != false; then
1295       echo "gnulib-tool: invalid options for '$mode' mode" 1>&2
1296       echo "Try 'gnulib-tool --help' for more information." 1>&2
1297       func_exit 1
1298     fi
1299   fi
1300   # This code helps migrating from --import to --add-import or --update. It can
1301   # be removed on 2012-01-01.
1302   if test "$mode" = import && test $# = 0; then
1303     echo "gnulib-tool: cowardly refusing to erase the module list." 1>&2
1304     echo "The meaning of the option '--import' has changed." 1>&2
1305     echo "See the documentation at" 1>&2
1306     echo "<http://www.gnu.org/software/gnulib/manual/html_node/Modified-imports.html>." 1>&2
1307     echo "For updating to a newer version of gnulib, use" 1>&2
1308     echo "  gnulib-tool --add-import" 1>&2
1309     echo "For restoring files that were omitted from version control, use" 1>&2
1310     echo "  gnulib-tool --update" 1>&2
1311     func_exit 1
1312   fi
1313   if test "$mode" = update; then
1314     if test $# != 0; then
1315       echo "gnulib-tool: too many arguments in 'update' mode" 1>&2
1316       echo "Try 'gnulib-tool --help' for more information." 1>&2
1317       echo "If you really want to modify the gnulib configuration of your project," 1>&2
1318       echo "you need to use 'gnulib --import' - at your own risk!" 1>&2
1319       func_exit 1
1320     fi
1321     if test -n "$local_gnulib_dir" || test -n "$supplied_libname" \
1322        || test -n "$sourcebase" || test -n "$m4base" || test -n "$pobase" \
1323        || test -n "$docbase" || test -n "$testsbase" || test -n "$auxdir" \
1324        || test -n "$inctests" || test -n "$incobsolete" \
1325        || test -n "$inc_cxx_tests" || test -n "$inc_longrunning_tests" \
1326        || test -n "$inc_privileged_tests" || test -n "$inc_unportable_tests" \
1327        || test -n "$inc_all_tests" \
1328        || test -n "$excl_cxx_tests" || test -n "$excl_longrunning_tests" \
1329        || test -n "$excl_privileged_tests" || test -n "$excl_unportable_tests" \
1330        || test -n "$avoidlist" || test -n "$lgpl" || test -n "$makefile_name" \
1331        || test -n "$macro_prefix" || test -n "$po_domain" \
1332        || test -n "$witness_c_macro" || test -n "$vc_files"; then
1333       echo "gnulib-tool: invalid options for 'update' mode" 1>&2
1334       echo "Try 'gnulib-tool --help' for more information." 1>&2
1335       echo "If you really want to modify the gnulib configuration of your project," 1>&2
1336       echo "you need to use 'gnulib --import' - at your own risk!" 1>&2
1337       func_exit 1
1338     fi
1339     do_changelog=false
1340   fi
1341   if test -n "$pobase" && test -z "$po_domain"; then
1342     echo "gnulib-tool: together with --po-base, you need to specify --po-domain" 1>&2
1343     echo "Try 'gnulib-tool --help' for more information." 1>&2
1344     func_exit 1
1345   fi
1346   if test -z "$pobase" && test -n "$po_domain"; then
1347     func_warning "--po-domain has no effect without a --po-base option"
1348   fi
1349   if test "$cond_dependencies" = true && test -n "$inctests"; then
1350     echo "gnulib-tool: option --conditional-dependencies is not supported with --with-tests" 1>&2
1351     func_exit 1
1352   fi
1353
1354   # Determine the minimum supported autoconf version from the project's
1355   # configure.ac.
1356   DEFAULT_AUTOCONF_MINVERSION="2.59"
1357   autoconf_minversion=
1358   configure_ac=
1359   if case "$mode" in import | add-import | remove-import | update) true;; *) false;; esac \
1360      && test -n "$destdir"; then
1361     if test -f "$destdir"/configure.ac; then
1362       configure_ac="$destdir/configure.ac"
1363     else
1364       if test -f "$destdir"/configure.in; then
1365         configure_ac="$destdir/configure.in"
1366       fi
1367     fi
1368   else
1369     if test -f configure.ac; then
1370       configure_ac="configure.ac"
1371     else
1372       if test -f configure.in; then
1373         configure_ac="configure.in"
1374       fi
1375     fi
1376   fi
1377   if test -n "$configure_ac"; then
1378     # Use sed, not autoconf --trace, to look for the AC_PREREQ invocation,
1379     # because when some m4 files are omitted from a version control repository,
1380     # "autoconf --trace=AC_PREREQ" fails with an error message like this:
1381     #   m4: aclocal.m4:851: Cannot open m4/absolute-header.m4: No such file or directory
1382     #   autom4te: m4 failed with exit status: 1
1383     prereqs=
1384     my_sed_traces='
1385       s,#.*$,,
1386       s,^dnl .*$,,
1387       s, dnl .*$,,
1388       /AC_PREREQ/ {
1389         s,^.*AC_PREREQ([[ ]*\([^])]*\).*$,\1,p
1390       }'
1391     prereqs=`sed -n -e "$my_sed_traces" < "$configure_ac"`
1392     if test -n "$prereqs"; then
1393       autoconf_minversion=`
1394         for version in $prereqs; do echo $version; done |
1395         LC_ALL=C sort -nru | sed -e 1q
1396       `
1397     fi
1398   fi
1399   if test -z "$autoconf_minversion"; then
1400     autoconf_minversion=$DEFAULT_AUTOCONF_MINVERSION
1401   fi
1402   case "$autoconf_minversion" in
1403     1.* | 2.[0-4]* | 2.5[0-8]*)
1404       func_fatal_error "minimum supported autoconf version is 2.59. Try adding AC_PREREQ([$DEFAULT_AUTOCONF_MINVERSION]) to your configure.ac." ;;
1405   esac
1406
1407   # Remove trailing slashes from the directory names. This is necessary for
1408   # m4base (to avoid an error in func_import) and optional for the others.
1409   sed_trimtrailingslashes='s,\([^/]\)//*$,\1,'
1410   case "$local_gnulib_dir" in
1411     */ ) local_gnulib_dir=`echo "$local_gnulib_dir" | sed -e "$sed_trimtrailingslashes"` ;;
1412   esac
1413   case "$sourcebase" in
1414     */ ) sourcebase=`echo "$sourcebase" | sed -e "$sed_trimtrailingslashes"` ;;
1415   esac
1416   case "$m4base" in
1417     */ ) m4base=`echo "$m4base" | sed -e "$sed_trimtrailingslashes"` ;;
1418   esac
1419   case "$pobase" in
1420     */ ) pobase=`echo "$pobase" | sed -e "$sed_trimtrailingslashes"` ;;
1421   esac
1422   case "$docbase" in
1423     */ ) docbase=`echo "$docbase" | sed -e "$sed_trimtrailingslashes"` ;;
1424   esac
1425   case "$testsbase" in
1426     */ ) testsbase=`echo "$testsbase" | sed -e "$sed_trimtrailingslashes"` ;;
1427   esac
1428   case "$auxdir" in
1429     */ ) auxdir=`echo "$auxdir" | sed -e "$sed_trimtrailingslashes"` ;;
1430   esac
1431 }
1432
1433 func_gnulib_dir
1434 func_tmpdir
1435 trap 'exit_status=$?
1436       if test "$signal" != 0; then
1437         echo "caught signal $signal" >&2
1438       fi
1439       rm -rf "$tmp"
1440       exit $exit_status' 0
1441 for signal in 1 2 3 13 15; do
1442   trap '{ signal='$signal'; func_exit 1; }' $signal
1443 done
1444 signal=0
1445
1446 # Note: The 'eval' silences stderr output in dash.
1447 if (declare -A x && { x[f/2]='foo'; x[f/3]='bar'; eval test '${x[f/2]}' = foo; }) 2>/dev/null; then
1448   # Zsh 4 and Bash 4 have associative arrays.
1449   have_associative=true
1450 else
1451   # For other shells, use 'eval' with computed shell variable names.
1452   have_associative=false
1453 fi
1454
1455 # func_lookup_file file
1456 # looks up a file in $local_gnulib_dir or $gnulib_dir, or combines it through
1457 # 'patch'.
1458 # Input:
1459 # - local_gnulib_dir  from --local-dir
1460 # Output:
1461 # - lookedup_file   name of the merged (combined) file
1462 # - lookedup_tmp    true if it is located in the tmp directory, blank otherwise
1463 func_lookup_file ()
1464 {
1465   lkfile="$1"
1466   if test -n "$local_gnulib_dir" && test -f "$local_gnulib_dir/$lkfile"; then
1467     lookedup_file="$local_gnulib_dir/$lkfile"
1468     lookedup_tmp=
1469   else
1470     if test -f "$gnulib_dir/$lkfile"; then
1471       if test -n "$local_gnulib_dir" && test -f "$local_gnulib_dir/$lkfile.diff"; then
1472         lkbase=`echo "$lkfile" | sed -e 's,^.*/,,'`
1473         rm -f "$tmp/$lkbase"
1474         cp "$gnulib_dir/$lkfile" "$tmp/$lkbase"
1475         patch -s "$tmp/$lkbase" < "$local_gnulib_dir/$lkfile.diff" \
1476           || func_fatal_error "patch file $local_gnulib_dir/$lkfile.diff didn't apply cleanly"
1477         lookedup_file="$tmp/$lkbase"
1478         lookedup_tmp=true
1479       else
1480         lookedup_file="$gnulib_dir/$lkfile"
1481         lookedup_tmp=
1482       fi
1483     else
1484       func_fatal_error "file $gnulib_dir/$lkfile not found"
1485     fi
1486   fi
1487 }
1488
1489 # func_sanitize_modulelist
1490 # receives a list of possible module names on standard input, one per line.
1491 # It removes those which are just file names unrelated to modules, and outputs
1492 # the resulting list to standard output, one per line.
1493 func_sanitize_modulelist ()
1494 {
1495   sed -e '/^CVS\//d' -e '/\/CVS\//d' \
1496       -e '/^ChangeLog$/d' -e '/\/ChangeLog$/d' \
1497       -e '/^COPYING$/d' -e '/\/COPYING$/d' \
1498       -e '/^README$/d' -e '/\/README$/d' \
1499       -e '/^TEMPLATE$/d' \
1500       -e '/^TEMPLATE-EXTENDED$/d' \
1501       -e '/^TEMPLATE-TESTS$/d' \
1502       -e '/^\..*/d' \
1503       -e '/~$/d'
1504 }
1505
1506 # func_all_modules
1507 # Input:
1508 # - local_gnulib_dir  from --local-dir
1509 func_all_modules ()
1510 {
1511   # Filter out metainformation files like README, which are not modules.
1512   # Filter out unit test modules; they can be retrieved through
1513   # --extract-tests-module if desired.
1514   {
1515     (cd "$gnulib_dir" && find modules -type f -print | sed -e 's,^modules/,,')
1516     if test -n "$local_gnulib_dir" && test -d "$local_gnulib_dir/modules"; then
1517       (cd "$local_gnulib_dir" && find modules -type f -print | sed -e 's,^modules/,,' -e 's,\.diff$,,')
1518     fi
1519   } \
1520       | func_sanitize_modulelist \
1521       | sed -e '/-tests$/d' \
1522       | LC_ALL=C sort -u
1523 }
1524
1525 # func_exists_module module
1526 # tests whether a module, given by name, exists
1527 # Input:
1528 # - local_gnulib_dir  from --local-dir
1529 func_exists_module ()
1530 {
1531   { test -f "$gnulib_dir/modules/$1" \
1532     || { test -n "$local_gnulib_dir" && test -d "$local_gnulib_dir/modules" \
1533          && test -f "$local_gnulib_dir/modules/$1"; }; } \
1534   && test "CVS" != "$1" \
1535   && test "ChangeLog" != "$1" \
1536   && test "COPYING" != "$1" \
1537   && test "README" != "$1" \
1538   && test "TEMPLATE" != "$1" \
1539   && test "TEMPLATE-EXTENDED" != "$1" \
1540   && test "TEMPLATE-TESTS" != "$1"
1541 }
1542
1543 # func_verify_module
1544 # verifies a module name
1545 # Input:
1546 # - local_gnulib_dir  from --local-dir
1547 # - module          module name argument
1548 func_verify_module ()
1549 {
1550   if func_exists_module "$module"; then
1551     # OK, $module is a correct module name.
1552     # Verify that building the module description with 'patch' succeeds.
1553     func_lookup_file "modules/$module"
1554   else
1555     func_warning "module $module doesn't exist"
1556     module=
1557   fi
1558 }
1559
1560 # func_verify_nontests_module
1561 # verifies a module name, excluding tests modules
1562 # Input:
1563 # - local_gnulib_dir  from --local-dir
1564 # - module          module name argument
1565 func_verify_nontests_module ()
1566 {
1567   case "$module" in
1568     *-tests ) module= ;;
1569     * ) func_verify_module ;;
1570   esac
1571 }
1572
1573 # func_verify_tests_module
1574 # verifies a module name, considering only tests modules
1575 # Input:
1576 # - local_gnulib_dir  from --local-dir
1577 # - module          module name argument
1578 func_verify_tests_module ()
1579 {
1580   case "$module" in
1581     *-tests ) func_verify_module ;;
1582     * ) module= ;;
1583   esac
1584 }
1585
1586 # Suffix of a sed expression that extracts a particular field from a
1587 # module description.
1588 # A field starts with a line that contains a keyword, such as 'Description',
1589 # followed by a colon and optional whitespace. All following lines, up to
1590 # the next field (or end of file if there is none) form the contents of the
1591 # field.
1592 # An absent field is equivalent to a field with empty contents.
1593 # NOTE: Keep this in sync with sed_extract_cache_prog below!
1594 sed_extract_prog=':[     ]*$/ {
1595   :a
1596     n
1597     s/^Description:[     ]*$//
1598     s/^Comment:[         ]*$//
1599     s/^Status:[  ]*$//
1600     s/^Notice:[  ]*$//
1601     s/^Applicability:[   ]*$//
1602     s/^Files:[   ]*$//
1603     s/^Depends-on:[      ]*$//
1604     s/^configure\.ac-early:[     ]*$//
1605     s/^configure\.ac:[   ]*$//
1606     s/^Makefile\.am:[    ]*$//
1607     s/^Include:[         ]*$//
1608     s/^Link:[    ]*$//
1609     s/^License:[         ]*$//
1610     s/^Maintainer:[      ]*$//
1611     tb
1612     p
1613     ba
1614   :b
1615 }'
1616
1617 # Piece of a sed expression that converts a field header line to a shell
1618 # variable name,
1619 # NOTE: Keep this in sync with sed_extract_prog above!
1620 sed_extract_field_header='
1621   s/^Description:[       ]*$/description/
1622   s/^Comment:[   ]*$/comment/
1623   s/^Status:[    ]*$/status/
1624   s/^Notice:[    ]*$/notice/
1625   s/^Applicability:[     ]*$/applicability/
1626   s/^Files:[     ]*$/files/
1627   s/^Depends-on:[        ]*$/dependson/
1628   s/^configure\.ac-early:[       ]*$/configureac_early/
1629   s/^configure\.ac:[     ]*$/configureac/
1630   s/^Makefile\.am:[      ]*$/makefile/
1631   s/^Include:[   ]*$/include/
1632   s/^Link:[      ]*$/link/
1633   s/^License:[   ]*$/license/
1634   s/^Maintainer:[        ]*$/maintainer/'
1635
1636 if $modcache; then
1637
1638   if $have_associative; then
1639
1640     # Declare the associative arrays.
1641     declare -A modcache_cached
1642     sed_to_declare_statement='s|^.*/\([a-zA-Z0-9_]*\)/$|declare -A modcache_\1|p'
1643     declare_script=`echo "$sed_extract_field_header" | sed -n -e "$sed_to_declare_statement"`
1644     eval "$declare_script"
1645
1646   else
1647
1648     # func_cache_var module
1649     # computes the cache variable name corresponding to $module.
1650     # Note: This computation can map different module names to the same
1651     # cachevar (such as 'foo-bar', 'foo_bar', or 'foo/bar'); the caller has
1652     # to protect against this case.
1653     # Output:
1654     # - cachevar               a shell variable name
1655     if (f=foo; eval echo '${f//o/e}') < /dev/null 2>/dev/null | grep fee >/dev/null; then
1656       # Bash 2.0 and newer, ksh, and zsh support the syntax
1657       #   ${param//pattern/replacement}
1658       # as a shorthand for
1659       #   `echo "$param" | sed -e "s/pattern/replacement/g"`.
1660       # Note: The 'eval' is necessary for dash and NetBSD /bin/sh.
1661       eval 'func_cache_var ()
1662       {
1663         cachevar=c_${1//[!a-zA-Z0-9_]/_}
1664       }'
1665     else
1666       func_cache_var ()
1667       {
1668         case $1 in
1669           *[!a-zA-Z0-9_]*)
1670             cachevar=c_`echo "$1" | LC_ALL=C sed -e 's/[^a-zA-Z0-9_]/_/g'` ;;
1671           *)
1672             cachevar=c_$1 ;;
1673         esac
1674       }
1675     fi
1676
1677   fi
1678
1679   # func_init_sed_convert_to_cache_statements
1680   # Input:
1681   # - modcachevar_assignment
1682   # Output:
1683   # - sed_convert_to_cache_statements
1684   func_init_sed_convert_to_cache_statements ()
1685   {
1686     # 'sed' script that turns a module description into shell script
1687     # assignments, suitable to be eval'ed.  All active characters are escaped.
1688     # This script turns
1689     #   Description:
1690     #   Some module's description
1691     #
1692     #   Files:
1693     #   lib/file.h
1694     # into:
1695     #   modcache_description[$1]=\
1696     #   'Some module'"'"'s description
1697     #   '
1698     #   modcache_files[$1]=\
1699     #   'lib/file.h'
1700     # or:
1701     #   c_MODULE_description_set=set; c_MODULE_description=\
1702     #   'Some module'"'"'s description
1703     #   '
1704     #   c_MODULE_files_set=set; c_MODULE_files=\
1705     #   'lib/file.h'
1706     # The script consists of two parts:
1707     # 1) Ignore the lines before the first field header.
1708     # 2) A loop, treating non-field-header lines by escaping single quotes
1709     #    and adding a closing quote in the last line,
1710     sed_convert_to_cache_statements="
1711       :llla
1712         # Here we have not yet seen a field header.
1713
1714         # See if the current line contains a field header.
1715         t llla1
1716         :llla1
1717         ${sed_extract_field_header}
1718         t lllb
1719
1720         # No field header. Ignore the line.
1721
1722         # Read the next line. Upon EOF, just exit.
1723         n
1724       b llla
1725
1726       :lllb
1727         # The current line contains a field header.
1728
1729         # Turn it into the beginning of an assignment.
1730         s/^\\(.*\\)\$/${modcachevar_assignment}\\\\/
1731
1732         # Move it to the hold space. Don't print it yet,
1733         # because we want no assignment if the field is empty.
1734         h
1735
1736         # Read the next line.
1737         # Upon EOF, the field was empty. Print no assignment. Just exit.
1738         n
1739
1740         # See if the current line contains a field header.
1741         t lllb1
1742         :lllb1
1743         ${sed_extract_field_header}
1744         # If it is, the previous field was empty. Print no assignment.
1745         t lllb
1746
1747         # Not a field header.
1748
1749         # Print the previous line, held in the hold space.
1750         x
1751         p
1752         x
1753
1754         # Transform single quotes.
1755         s/'/'\"'\"'/g
1756
1757         # Prepend a single quote.
1758         s/^/'/
1759
1760         :lllc
1761
1762           # Move it to the hold space.
1763           h
1764
1765           # Read the next line.
1766           # Upon EOF, branch.
1767           \${
1768             b llle
1769           }
1770           n
1771
1772           # See if the current line contains a field header.
1773           t lllc1
1774           :lllc1
1775           ${sed_extract_field_header}
1776           t llld
1777
1778           # Print the previous line, held in the hold space.
1779           x
1780           p
1781           x
1782
1783           # Transform single quotes.
1784           s/'/'\"'\"'/g
1785
1786         b lllc
1787
1788         :llld
1789         # A field header.
1790         # Print the previous line, held in the hold space, with a single quote
1791         # to end the assignment.
1792         x
1793         s/\$/'/
1794         p
1795         x
1796
1797       b lllb
1798
1799       :llle
1800       # EOF seen.
1801       # Print the previous line, held in the hold space, with a single quote
1802       # to end the assignment.
1803       x
1804       s/\$/'/
1805       p
1806       # Exit.
1807       n
1808       "
1809     if ! $sed_comments; then
1810       # Remove comments.
1811       sed_convert_to_cache_statements=`echo "$sed_convert_to_cache_statements" \
1812                                        | sed -e 's/^ *//' -e 's/^#.*//'`
1813     fi
1814   }
1815
1816   if $have_associative; then
1817     # sed_convert_to_cache_statements does not depend on the module.
1818     modcachevar_assignment='modcache_\1[$1]='
1819     func_init_sed_convert_to_cache_statements
1820   fi
1821
1822   # func_cache_lookup_module module
1823   #
1824   # looks up a module, like 'func_lookup_file modules/$module', and stores all
1825   # of its relevant data in a cache in the memory of the processing shell.  If
1826   # already cached, it does not look it up again, thus saving file access time.
1827   # Parameters:
1828   # - module                             non-empty string
1829   # Output if $have_associative:
1830   # - modcache_cached[$module]           set to yes
1831   # - modcache_description[$module] ==
1832   # - modcache_status[$module]        \  set to the field's value, minus the
1833   # - ...                             /  final newline,
1834   # - modcache_maintainer[$module]  ==   or unset if the field's value is empty
1835   # Output if ! $have_associative:
1836   # - cachevar                           a shell variable name
1837   # - ${cachevar}_cached                 set to $module
1838   # - ${cachevar}_description       ==
1839   # - ${cachevar}_status              \  set to the field's value, minus the
1840   # - ...                             /  final newline,
1841   # - ${cachevar}_maintainer        ==   or unset if the field's value is empty
1842   # - ${cachevar}_description_set   ==
1843   # - ${cachevar}_status_set          \  set to non-empty if the field's value
1844   # - ...                             /  is non-empty,
1845   # - ${cachevar}_maintainer_set    ==   or unset if the field's value is empty
1846   func_cache_lookup_module ()
1847   {
1848     if $have_associative; then
1849       eval 'cached=${modcache_cached[$1]}'
1850     else
1851       func_cache_var "$1"
1852       eval "cached=\"\$${cachevar}_cached\""
1853     fi
1854     if test -z "$cached"; then
1855       # Not found in cache. Look it up on the file system.
1856       func_lookup_file "modules/$1"
1857       if $have_associative; then
1858         eval 'modcache_cached[$1]=yes'
1859       else
1860         eval "${cachevar}_cached=\"\$1\""
1861       fi
1862       if ! $have_associative; then
1863         # sed_convert_to_cache_statements depends on the module.
1864         modcachevar_assignment="${cachevar}"'_\1_set=set; '"${cachevar}"'_\1='
1865         func_init_sed_convert_to_cache_statements
1866       fi
1867       cache_statements=`LC_ALL=C sed -n -e "$sed_convert_to_cache_statements" < "$lookedup_file"`
1868       eval "$cache_statements"
1869     else
1870       if ! $have_associative; then
1871         if test "$1" != "$cached"; then
1872           func_fatal_error "cache variable collision between $1 and $cached"
1873         fi
1874       fi
1875     fi
1876   }
1877
1878 fi
1879
1880 # func_get_description module
1881 # Input:
1882 # - local_gnulib_dir  from --local-dir
1883 # - modcache          true or false, from --cache-modules/--no-cache-modules
1884 func_get_description ()
1885 {
1886   if ! $modcache; then
1887     func_lookup_file "modules/$1"
1888     sed -n -e "/^Description$sed_extract_prog" < "$lookedup_file"
1889   else
1890     func_cache_lookup_module "$1"
1891     # Output the field's value, including the final newline (if any).
1892     if $have_associative; then
1893       if eval 'test -n "${modcache_description[$1]+set}"'; then
1894         eval 'echo "${modcache_description[$1]}"'
1895       fi
1896     else
1897       eval "field_set=\"\$${cachevar}_description_set\""
1898       if test -n "$field_set"; then
1899         eval "field_value=\"\$${cachevar}_description\""
1900         echo "${field_value}"
1901       fi
1902     fi
1903   fi
1904 }
1905
1906 # func_get_comment module
1907 # Input:
1908 # - local_gnulib_dir  from --local-dir
1909 # - modcache          true or false, from --cache-modules/--no-cache-modules
1910 func_get_comment ()
1911 {
1912   if ! $modcache; then
1913     func_lookup_file "modules/$1"
1914     sed -n -e "/^Comment$sed_extract_prog" < "$lookedup_file"
1915   else
1916     func_cache_lookup_module "$1"
1917     # Output the field's value, including the final newline (if any).
1918     if $have_associative; then
1919       if eval 'test -n "${modcache_comment[$1]+set}"'; then
1920         eval 'echo "${modcache_comment[$1]}"'
1921       fi
1922     else
1923       eval "field_set=\"\$${cachevar}_comment_set\""
1924       if test -n "$field_set"; then
1925         eval "field_value=\"\$${cachevar}_comment\""
1926         echo "${field_value}"
1927       fi
1928     fi
1929   fi
1930 }
1931
1932 # func_get_status module
1933 # Input:
1934 # - local_gnulib_dir  from --local-dir
1935 # - modcache          true or false, from --cache-modules/--no-cache-modules
1936 func_get_status ()
1937 {
1938   if ! $modcache; then
1939     func_lookup_file "modules/$1"
1940     sed -n -e "/^Status$sed_extract_prog" < "$lookedup_file"
1941   else
1942     func_cache_lookup_module "$1"
1943     # Output the field's value, including the final newline (if any).
1944     if $have_associative; then
1945       if eval 'test -n "${modcache_status[$1]+set}"'; then
1946         eval 'echo "${modcache_status[$1]}"'
1947       fi
1948     else
1949       eval "field_set=\"\$${cachevar}_status_set\""
1950       if test -n "$field_set"; then
1951         eval "field_value=\"\$${cachevar}_status\""
1952         echo "${field_value}"
1953       fi
1954     fi
1955   fi
1956 }
1957
1958 # func_get_notice module
1959 # Input:
1960 # - local_gnulib_dir  from --local-dir
1961 # - modcache          true or false, from --cache-modules/--no-cache-modules
1962 func_get_notice ()
1963 {
1964   if ! $modcache; then
1965     func_lookup_file "modules/$1"
1966     sed -n -e "/^Notice$sed_extract_prog" < "$lookedup_file"
1967   else
1968     func_cache_lookup_module "$1"
1969     # Output the field's value, including the final newline (if any).
1970     if $have_associative; then
1971       if eval 'test -n "${modcache_notice[$1]+set}"'; then
1972         eval 'echo "${modcache_notice[$1]}"'
1973       fi
1974     else
1975       eval "field_set=\"\$${cachevar}_notice_set\""
1976       if test -n "$field_set"; then
1977         eval "field_value=\"\$${cachevar}_notice\""
1978         echo "${field_value}"
1979       fi
1980     fi
1981   fi
1982 }
1983
1984 # func_get_applicability module
1985 # Input:
1986 # - local_gnulib_dir  from --local-dir
1987 # - modcache          true or false, from --cache-modules/--no-cache-modules
1988 # The expected result (on stdout) is either 'main', or 'tests', or 'all'.
1989 func_get_applicability ()
1990 {
1991   if ! $modcache; then
1992     func_lookup_file "modules/$1"
1993     my_applicability=`sed -n -e "/^Applicability$sed_extract_prog" < "$lookedup_file"`
1994   else
1995     func_cache_lookup_module "$1"
1996     # Get the field's value, without the final newline.
1997     if $have_associative; then
1998       eval 'my_applicability="${modcache_applicability[$1]}"'
1999     else
2000       eval "my_applicability=\"\$${cachevar}_applicability\""
2001     fi
2002   fi
2003   if test -n "$my_applicability"; then
2004     echo $my_applicability
2005   else
2006     # The default is 'main' or 'tests', depending on the module's name.
2007     case $1 in
2008       *-tests) echo "tests";;
2009       *)       echo "main";;
2010     esac
2011   fi
2012 }
2013
2014 # func_get_filelist module
2015 # Input:
2016 # - local_gnulib_dir  from --local-dir
2017 # - modcache          true or false, from --cache-modules/--no-cache-modules
2018 func_get_filelist ()
2019 {
2020   if ! $modcache; then
2021     func_lookup_file "modules/$1"
2022     sed -n -e "/^Files$sed_extract_prog" < "$lookedup_file"
2023   else
2024     func_cache_lookup_module "$1"
2025     # Output the field's value, including the final newline (if any).
2026     if $have_associative; then
2027       if eval 'test -n "${modcache_files[$1]+set}"'; then
2028         eval 'echo "${modcache_files[$1]}"'
2029       fi
2030     else
2031       eval "field_set=\"\$${cachevar}_files_set\""
2032       if test -n "$field_set"; then
2033         eval "field_value=\"\$${cachevar}_files\""
2034         echo "${field_value}"
2035       fi
2036     fi
2037   fi
2038   echo m4/00gnulib.m4
2039   echo m4/gnulib-common.m4
2040   case "$autoconf_minversion" in
2041     2.59)
2042       echo m4/onceonly.m4
2043       ;;
2044   esac
2045 }
2046
2047 # func_filter_filelist outputvar separator filelist prefix suffix removed_prefix removed_suffix [added_prefix [added_suffix]]
2048 # stores in outputvar the filtered and processed filelist. Filtering: Only the
2049 # elements starting with prefix and ending with suffix are considered.
2050 # Processing: removed_prefix and removed_suffix are removed from each element,
2051 # added_prefix and added_suffix are added to each element.
2052 # prefix, suffix should not contain shell-special characters.
2053 # removed_prefix, removed_suffix should not contain the characters "$`\{}[]^|.
2054 # added_prefix, added_suffix should not contain the characters \|&.
2055 func_filter_filelist ()
2056 {
2057   if test "$2" != "$nl" \
2058      || { $fast_func_append \
2059           && { test -z "$6" || $fast_func_remove_prefix; } \
2060           && { test -z "$7" || $fast_func_remove_suffix; }; \
2061         }; then
2062     ffflist=
2063     for fff in $3; do
2064       # Do not quote possibly-empty parameters in case patterns,
2065       # AIX and HP-UX ksh won't match them if they are empty.
2066       case "$fff" in
2067         $4*$5)
2068           if test -n "$6"; then
2069             func_remove_prefix fff "$6"
2070           fi
2071           if test -n "$7"; then
2072             func_remove_suffix fff "$7"
2073           fi
2074           fff="$8${fff}$9"
2075           if test -z "$ffflist"; then
2076             ffflist="${fff}"
2077           else
2078             func_append ffflist "$2${fff}"
2079           fi
2080           ;;
2081       esac
2082     done
2083   else
2084     sed_fff_filter="s|^$6\(.*\)$7\$|$8\\1$9|"
2085     ffflist=`for fff in $3; do
2086                case "$fff" in
2087                  $4*$5) echo "$fff" ;;
2088                esac
2089              done | sed -e "$sed_fff_filter"`
2090   fi
2091   eval "$1=\"\$ffflist\""
2092 }
2093
2094 # func_get_dependencies module
2095 # Input:
2096 # - local_gnulib_dir  from --local-dir
2097 # - modcache          true or false, from --cache-modules/--no-cache-modules
2098 func_get_dependencies ()
2099 {
2100   # ${module}-tests implicitly depends on ${module}, if that module exists.
2101   case "$1" in
2102     *-tests)
2103       fgd1="$1"
2104       func_remove_suffix fgd1 '-tests'
2105       if func_exists_module "$fgd1"; then
2106         echo "$fgd1"
2107       fi
2108       ;;
2109   esac
2110   # Then the explicit dependencies listed in the module description.
2111   { if ! $modcache; then
2112       func_lookup_file "modules/$1"
2113       sed -n -e "/^Depends-on$sed_extract_prog" < "$lookedup_file"
2114     else
2115       func_cache_lookup_module "$1"
2116       # Output the field's value, including the final newline (if any).
2117       if $have_associative; then
2118         if eval 'test -n "${modcache_dependson[$1]+set}"'; then
2119           eval 'echo "${modcache_dependson[$1]}"'
2120         fi
2121       else
2122         eval "field_set=\"\$${cachevar}_dependson_set\""
2123         if test -n "$field_set"; then
2124           eval "field_value=\"\$${cachevar}_dependson\""
2125           echo "${field_value}"
2126         fi
2127       fi
2128     fi
2129   } \
2130   | sed -e '/^#/d'
2131 }
2132
2133 # func_get_autoconf_early_snippet module
2134 # Input:
2135 # - local_gnulib_dir  from --local-dir
2136 # - modcache          true or false, from --cache-modules/--no-cache-modules
2137 func_get_autoconf_early_snippet ()
2138 {
2139   if ! $modcache; then
2140     func_lookup_file "modules/$1"
2141     sed -n -e "/^configure\.ac-early$sed_extract_prog" < "$lookedup_file"
2142   else
2143     func_cache_lookup_module "$1"
2144     # Output the field's value, including the final newline (if any).
2145     if $have_associative; then
2146       if eval 'test -n "${modcache_configureac_early[$1]+set}"'; then
2147         eval 'echo "${modcache_configureac_early[$1]}"'
2148       fi
2149     else
2150       eval "field_set=\"\$${cachevar}_configureac_early_set\""
2151       if test -n "$field_set"; then
2152         eval "field_value=\"\$${cachevar}_configureac_early\""
2153         echo "${field_value}"
2154       fi
2155     fi
2156   fi
2157 }
2158
2159 # func_get_autoconf_snippet module
2160 # Input:
2161 # - local_gnulib_dir  from --local-dir
2162 # - modcache          true or false, from --cache-modules/--no-cache-modules
2163 func_get_autoconf_snippet ()
2164 {
2165   if ! $modcache; then
2166     func_lookup_file "modules/$1"
2167     sed -n -e "/^configure\.ac$sed_extract_prog" < "$lookedup_file"
2168   else
2169     func_cache_lookup_module "$1"
2170     # Output the field's value, including the final newline (if any).
2171     if $have_associative; then
2172       if eval 'test -n "${modcache_configureac[$1]+set}"'; then
2173         eval 'echo "${modcache_configureac[$1]}"'
2174       fi
2175     else
2176       eval "field_set=\"\$${cachevar}_configureac_set\""
2177       if test -n "$field_set"; then
2178         eval "field_value=\"\$${cachevar}_configureac\""
2179         echo "${field_value}"
2180       fi
2181     fi
2182   fi
2183 }
2184
2185 # func_get_automake_snippet_conditional module
2186 # returns the part of the Makefile.am snippet that can be put inside Automake
2187 # conditionals.
2188 # Input:
2189 # - local_gnulib_dir  from --local-dir
2190 # - modcache          true or false, from --cache-modules/--no-cache-modules
2191 func_get_automake_snippet_conditional ()
2192 {
2193   if ! $modcache; then
2194     func_lookup_file "modules/$1"
2195     sed -n -e "/^Makefile\.am$sed_extract_prog" < "$lookedup_file"
2196   else
2197     func_cache_lookup_module "$1"
2198     # Output the field's value, including the final newline (if any).
2199     if $have_associative; then
2200       if eval 'test -n "${modcache_makefile[$1]+set}"'; then
2201         eval 'echo "${modcache_makefile[$1]}"'
2202       fi
2203     else
2204       eval "field_set=\"\$${cachevar}_makefile_set\""
2205       if test -n "$field_set"; then
2206         eval "field_value=\"\$${cachevar}_makefile\""
2207         echo "${field_value}"
2208       fi
2209     fi
2210   fi
2211 }
2212
2213 # func_get_automake_snippet_unconditional module
2214 # returns the part of the Makefile.am snippet that must stay outside of
2215 # Automake conditionals.
2216 # Input:
2217 # - local_gnulib_dir  from --local-dir
2218 # - modcache          true or false, from --cache-modules/--no-cache-modules
2219 func_get_automake_snippet_unconditional ()
2220 {
2221   case "$1" in
2222     *-tests)
2223       # *-tests module live in tests/, not lib/.
2224       # Synthesize an EXTRA_DIST augmentation.
2225       all_files=`func_get_filelist $1`
2226       func_filter_filelist tests_files " " "$all_files" 'tests/' '' 'tests/' ''
2227       extra_files="$tests_files"
2228       if test -n "$extra_files"; then
2229         echo "EXTRA_DIST +=" $extra_files
2230         echo
2231       fi
2232       ;;
2233     *)
2234       # Synthesize an EXTRA_DIST augmentation.
2235       sed_combine_lines='/\\$/{
2236         :a
2237         N
2238         s/\\\n/ /
2239         s/\\$/\\/
2240         ta
2241       }'
2242       sed_extract_mentioned_files='s/^lib_SOURCES[       ]*+=[   ]*//p'
2243       already_mentioned_files=` \
2244         { if ! $modcache; then
2245             func_lookup_file "modules/$1"
2246             sed -n -e "/^Makefile\.am$sed_extract_prog" < "$lookedup_file"
2247           else
2248             func_cache_lookup_module "$1"
2249             if $have_associative; then
2250               if eval 'test -n "${modcache_makefile[$1]+set}"'; then
2251                 eval 'echo "${modcache_makefile[$1]}"'
2252               fi
2253             else
2254               eval 'field_set="$'"${cachevar}"'_makefile_set"'
2255               if test -n "$field_set"; then
2256                 eval 'field_value="$'"${cachevar}"'_makefile"'
2257                 echo "${field_value}"
2258               fi
2259             fi
2260           fi
2261         } \
2262         | sed -e "$sed_combine_lines" \
2263         | sed -n -e "$sed_extract_mentioned_files" | sed -e 's/#.*//'`
2264       all_files=`func_get_filelist $1`
2265       func_filter_filelist lib_files "$nl" "$all_files" 'lib/' '' 'lib/' ''
2266       # Remove $already_mentioned_files from $lib_files.
2267       echo "$lib_files" | LC_ALL=C sort -u > "$tmp"/lib-files
2268       extra_files=`for f in $already_mentioned_files; do echo $f; done \
2269                    | LC_ALL=C sort -u | LC_ALL=C join -v 2 - "$tmp"/lib-files`
2270       if test -n "$extra_files"; then
2271         echo "EXTRA_DIST +=" $extra_files
2272         echo
2273       fi
2274       # Synthesize also an EXTRA_lib_SOURCES augmentation.
2275       # This is necessary so that automake can generate the right list of
2276       # dependency rules.
2277       # A possible approach would be to use autom4te --trace of the redefined
2278       # AC_LIBOBJ and AC_REPLACE_FUNCS macros when creating the Makefile.am
2279       # (use autom4te --trace, not just grep, so that AC_LIBOBJ invocations
2280       # inside autoconf's built-in macros are not missed).
2281       # But it's simpler and more robust to do it here, based on the file list.
2282       # If some .c file exists and is not used with AC_LIBOBJ - for example,
2283       # a .c file is preprocessed into another .c file for BUILT_SOURCES -,
2284       # automake will generate a useless dependency; this is harmless.
2285       case "$1" in
2286         relocatable-prog-wrapper) ;;
2287         pt_chown) ;;
2288         *)
2289           func_filter_filelist extra_files "$nl" "$extra_files" '' '.c' '' ''
2290           if test -n "$extra_files"; then
2291             echo "EXTRA_lib_SOURCES +=" $extra_files
2292             echo
2293           fi
2294           ;;
2295       esac
2296       # Synthesize an EXTRA_DIST augmentation also for the files in build-aux/.
2297       func_filter_filelist buildaux_files "$nl" "$all_files" 'build-aux/' '' 'build-aux/' ''
2298       if test -n "$buildaux_files"; then
2299         sed_prepend_auxdir='s,^,$(top_srcdir)/'"$auxdir"'/,'
2300         echo "EXTRA_DIST += "`echo "$buildaux_files" | sed -e "$sed_prepend_auxdir"`
2301         echo
2302       fi
2303       # Synthesize an EXTRA_DIST augmentation also for the files from top/.
2304       func_filter_filelist top_files "$nl" "$all_files" 'top/' '' 'top/' ''
2305       if test -n "$top_files"; then
2306         sed_prepend_topdir='s,^,$(top_srcdir)/,'
2307         echo "EXTRA_DIST += "`echo "$top_files" | sed -e "$sed_prepend_topdir"`
2308         echo
2309       fi
2310       ;;
2311   esac
2312 }
2313
2314 # func_get_automake_snippet module
2315 # Input:
2316 # - local_gnulib_dir  from --local-dir
2317 # - modcache          true or false, from --cache-modules/--no-cache-modules
2318 func_get_automake_snippet ()
2319 {
2320   func_get_automake_snippet_conditional "$1"
2321   func_get_automake_snippet_unconditional "$1"
2322 }
2323
2324 # func_get_include_directive module
2325 # Input:
2326 # - local_gnulib_dir  from --local-dir
2327 # - modcache          true or false, from --cache-modules/--no-cache-modules
2328 func_get_include_directive ()
2329 {
2330   {
2331     if ! $modcache; then
2332       func_lookup_file "modules/$1"
2333       sed -n -e "/^Include$sed_extract_prog" < "$lookedup_file"
2334     else
2335       func_cache_lookup_module "$1"
2336       # Output the field's value, including the final newline (if any).
2337       if $have_associative; then
2338         if eval 'test -n "${modcache_include[$1]+set}"'; then
2339           eval 'echo "${modcache_include[$1]}"'
2340         fi
2341       else
2342         eval "field_set=\"\$${cachevar}_include_set\""
2343         if test -n "$field_set"; then
2344           eval "field_value=\"\$${cachevar}_include\""
2345           echo "${field_value}"
2346         fi
2347       fi
2348     fi
2349   } | sed -e 's/^\(["<]\)/#include \1/'
2350 }
2351
2352 # func_get_link_directive module
2353 # Input:
2354 # - local_gnulib_dir  from --local-dir
2355 # - modcache          true or false, from --cache-modules/--no-cache-modules
2356 func_get_link_directive ()
2357 {
2358   if ! $modcache; then
2359     func_lookup_file "modules/$1"
2360     sed -n -e "/^Link$sed_extract_prog" < "$lookedup_file"
2361   else
2362     func_cache_lookup_module "$1"
2363     # Output the field's value, including the final newline (if any).
2364     if $have_associative; then
2365       if eval 'test -n "${modcache_link[$1]+set}"'; then
2366         eval 'echo "${modcache_link[$1]}"'
2367       fi
2368     else
2369       eval "field_set=\"\$${cachevar}_link_set\""
2370       if test -n "$field_set"; then
2371         eval "field_value=\"\$${cachevar}_link\""
2372         echo "${field_value}"
2373       fi
2374     fi
2375   fi
2376 }
2377
2378 # func_get_license module
2379 # Input:
2380 # - local_gnulib_dir  from --local-dir
2381 # - modcache          true or false, from --cache-modules/--no-cache-modules
2382 func_get_license ()
2383 {
2384   {
2385     if ! $modcache; then
2386       func_lookup_file "modules/$1"
2387       sed -n -e "/^License$sed_extract_prog" < "$lookedup_file"
2388     else
2389       func_cache_lookup_module "$1"
2390       # Output the field's value, including the final newline (if any).
2391       if $have_associative; then
2392         if eval 'test -n "${modcache_license[$1]+set}"'; then
2393           eval 'echo "${modcache_license[$1]}"'
2394         fi
2395       else
2396         eval "field_set=\"\$${cachevar}_license_set\""
2397         if test -n "$field_set"; then
2398           eval "field_value=\"\$${cachevar}_license\""
2399           echo "${field_value}"
2400         fi
2401       fi
2402     fi
2403     # The default is GPL.
2404     echo "GPL"
2405   } | sed -e 's,^ *$,,' | sed -e 1q
2406 }
2407
2408 # func_get_maintainer module
2409 # Input:
2410 # - local_gnulib_dir  from --local-dir
2411 # - modcache          true or false, from --cache-modules/--no-cache-modules
2412 func_get_maintainer ()
2413 {
2414   if ! $modcache; then
2415     func_lookup_file "modules/$1"
2416     sed -n -e "/^Maintainer$sed_extract_prog" < "$lookedup_file"
2417   else
2418     func_cache_lookup_module "$1"
2419     # Output the field's value, including the final newline (if any).
2420     if $have_associative; then
2421       if eval 'test -n "${modcache_maintainer[$1]+set}"'; then
2422         eval 'echo "${modcache_maintainer[$1]}"'
2423       fi
2424     else
2425       eval "field_set=\"\$${cachevar}_maintainer_set\""
2426       if test -n "$field_set"; then
2427         eval "field_value=\"\$${cachevar}_maintainer\""
2428         echo "${field_value}"
2429       fi
2430     fi
2431   fi
2432 }
2433
2434 # func_get_tests_module module
2435 # Input:
2436 # - local_gnulib_dir  from --local-dir
2437 func_get_tests_module ()
2438 {
2439   # The naming convention for tests modules is hardwired: ${module}-tests.
2440   if test -f "$gnulib_dir/modules/$1"-tests \
2441      || { test -n "$local_gnulib_dir" && test -d "$local_gnulib_dir/modules" \
2442           && test -f "$local_gnulib_dir/modules/$1"-tests; }; then
2443     echo "$1"-tests
2444   fi
2445 }
2446
2447 # func_acceptable module
2448 # tests whether a module is acceptable.
2449 # Input:
2450 # - avoidlist       list of modules to avoid
2451 func_acceptable ()
2452 {
2453   for avoid in $avoidlist; do
2454     if test "$avoid" = "$1"; then
2455       return 1
2456     fi
2457   done
2458   return 0
2459 }
2460
2461 # sed expression to keep the first 32 characters of each line.
2462 sed_first_32_chars='s/^\(................................\).*/\1/'
2463
2464 # func_module_shellfunc_name module
2465 # computes the shell function name that will contain the m4 macros for the module.
2466 # Input:
2467 # - macro_prefix    prefix to use
2468 # Output:
2469 # - shellfunc       shell function name
2470 func_module_shellfunc_name ()
2471 {
2472   case $1 in
2473     *[!a-zA-Z0-9_]*)
2474       shellfunc=func_${macro_prefix}_gnulib_m4code_`echo "$1" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"` ;;
2475     *)
2476       shellfunc=func_${macro_prefix}_gnulib_m4code_$1 ;;
2477   esac
2478 }
2479
2480 # func_module_shellvar_name module
2481 # computes the shell variable name the will be set to true once the m4 macros
2482 # for the module have been executed.
2483 # Output:
2484 # - shellvar        shell variable name
2485 func_module_shellvar_name ()
2486 {
2487   case $1 in
2488     *[!a-zA-Z0-9_]*)
2489       shellvar=${macro_prefix}_gnulib_enabled_`echo "$1" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"` ;;
2490     *)
2491       shellvar=${macro_prefix}_gnulib_enabled_$1 ;;
2492   esac
2493 }
2494
2495 # func_module_conditional_name module
2496 # computes the automake conditional name for the module.
2497 # Output:
2498 # - conditional     name of automake conditional
2499 func_module_conditional_name ()
2500 {
2501   case $1 in
2502     *[!a-zA-Z0-9_]*)
2503       conditional=${macro_prefix}_GNULIB_ENABLED_`echo "$1" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"` ;;
2504     *)
2505       conditional=${macro_prefix}_GNULIB_ENABLED_$1 ;;
2506   esac
2507 }
2508
2509 # func_uncond_add_module B
2510 # notes the presence of B as an unconditional module.
2511 #
2512 # func_conddep_add_module A B cond
2513 # notes the presence of a conditional dependency from module A to module B,
2514 # subject to the condition that A is enabled and cond is true.
2515 #
2516 # func_cond_module_p B
2517 # tests whether module B is conditional.
2518 #
2519 # func_cond_module_condition A B
2520 # returns the condition when B should be enabled as a dependency of A, once the
2521 # m4 code for A has been executed.
2522 # Output: - condition
2523 #
2524 if $have_associative; then
2525   declare -A conddep_isuncond
2526   declare -A conddep_dependers
2527   declare -A conddep_condition
2528   func_uncond_add_module ()
2529   {
2530     eval 'conddep_isuncond[$1]=true'
2531     eval 'unset conddep_dependers[$1]'
2532   }
2533   func_conddep_add_module ()
2534   {
2535     eval 'isuncond="${conddep_isuncond[$2]}"'
2536     if test -z "$isuncond"; then
2537       # No unconditional dependency to B known at this point.
2538       eval 'conddep_dependers[$2]="${conddep_dependers[$2]} $1"'
2539       eval 'conddep_condition[$1---$2]="$3"'
2540     fi
2541   }
2542   func_cond_module_p ()
2543   {
2544     eval 'previous_dependers="${conddep_dependers[$1]}"'
2545     test -n "$previous_dependers"
2546   }
2547   func_cond_module_condition ()
2548   {
2549     eval 'condition="${conddep_condition[$1---$2]}"'
2550   }
2551 else
2552   func_uncond_add_module ()
2553   {
2554     case $1 in
2555       *[!a-zA-Z0-9_]*)
2556         suffix=`echo "$1" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"` ;;
2557       *)
2558         suffix=$1 ;;
2559     esac
2560     eval 'conddep_isuncond_'"$suffix"'=true'
2561     eval 'unset conddep_dependers_'"$suffix"
2562   }
2563   func_conddep_add_module ()
2564   {
2565     case $2 in
2566       *[!a-zA-Z0-9_]*)
2567         suffix=`echo "$2" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"` ;;
2568       *)
2569         suffix=$2 ;;
2570     esac
2571     eval 'isuncond="${conddep_isuncond_'"$suffix"'}"'
2572     if test -z "$isuncond"; then
2573       eval 'conddep_dependers_'"$suffix"'="${conddep_dependers_'"$suffix"'} $1"'
2574       suffix=`echo "$1---$2" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"`
2575       eval 'conddep_condition_'"$suffix"'="$3"'
2576     fi
2577   }
2578   func_cond_module_p ()
2579   {
2580     case $1 in
2581       *[!a-zA-Z0-9_]*)
2582         suffix=`echo "$1" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"` ;;
2583       *)
2584         suffix=$1 ;;
2585     esac
2586     eval 'previous_dependers="${conddep_dependers_'"$suffix"'}"'
2587     test -n "$previous_dependers"
2588   }
2589   func_cond_module_condition ()
2590   {
2591     suffix=`echo "$1---$2" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"`
2592     eval 'condition="${conddep_condition_'"$suffix"'}"'
2593   }
2594 fi
2595
2596 sed_dependencies_without_conditions='s/ *\[.*//'
2597
2598 # func_modules_transitive_closure
2599 # Input:
2600 # - local_gnulib_dir  from --local-dir
2601 # - modcache        true or false, from --cache-modules/--no-cache-modules
2602 # - modules         list of specified modules
2603 # - inctests        true if tests should be included, blank otherwise
2604 # - incobsolete     true if obsolete modules among dependencies should be
2605 #                   included, blank otherwise
2606 # - inc_cxx_tests   true if C++ interoperability tests should be included,
2607 #                   blank otherwise
2608 # - inc_longrunning_tests  true if long-runnings tests should be included,
2609 #                          blank otherwise
2610 # - inc_privileged_tests  true if tests that require root privileges should be
2611 #                         included, blank otherwise
2612 # - inc_unportable_tests  true if tests that fail on some platforms should be
2613 #                         included, blank otherwise
2614 # - inc_all_direct_tests   true if all kinds of problematic unit tests among
2615 #                          the unit tests of the specified modules should be
2616 #                          included, blank otherwise
2617 # - inc_all_indirect_tests   true if all kinds of problematic unit tests among
2618 #                            the unit tests of the dependencies should be
2619 #                            included, blank otherwise
2620 # - excl_cxx_tests   true if C++ interoperability tests should be excluded,
2621 #                    blank otherwise
2622 # - excl_longrunning_tests  true if long-runnings tests should be excluded,
2623 #                           blank otherwise
2624 # - excl_privileged_tests  true if tests that require root privileges should be
2625 #                          excluded, blank otherwise
2626 # - excl_unportable_tests  true if tests that fail on some platforms should be
2627 #                          excluded, blank otherwise
2628 # - avoidlist       list of modules to avoid
2629 # - cond_dependencies  true if conditional dependencies shall be supported,
2630 #                      blank otherwise
2631 # - tmp             pathname of a temporary directory
2632 # Output:
2633 # - modules         list of modules, including dependencies
2634 # - conddep_dependers, conddep_condition  information about conditionally
2635 #                                         enabled modules
2636 func_modules_transitive_closure ()
2637 {
2638   sed_escape_dependency='s|\([/.]\)|\\\1|g'
2639   # In order to process every module only once (for speed), process an "input
2640   # list" of modules, producing an "output list" of modules. During each round,
2641   # more modules can be queued in the input list. Once a module on the input
2642   # list has been processed, it is added to the "handled list", so we can avoid
2643   # to process it again.
2644   handledmodules=
2645   inmodules="$modules"
2646   outmodules=
2647   fmtc_inc_all_tests="$inc_all_direct_tests"
2648   if test "$cond_dependencies" = true; then
2649     for module in $inmodules; do
2650       func_verify_module
2651       if test -n "$module"; then
2652         if func_acceptable $module; then
2653           func_uncond_add_module $module
2654         fi
2655       fi
2656     done
2657   fi
2658   while test -n "$inmodules"; do
2659     inmodules_this_round="$inmodules"
2660     inmodules=                    # Accumulator, queue for next round
2661     for module in $inmodules_this_round; do
2662       func_verify_module
2663       if test -n "$module"; then
2664         if func_acceptable $module; then
2665           func_append outmodules " $module"
2666           if test "$cond_dependencies" = true; then
2667             if func_get_automake_snippet_conditional $module | grep '^if ' > /dev/null; then
2668               # A module whose Makefile.am snippet contains a reference to an
2669               # automake conditional. If we were to use it conditionally, we
2670               # would get an error
2671               #   configure: error: conditional "..." was never defined.
2672               # because automake 1.11.1 does not handle nested conditionals
2673               # correctly. As a workaround, make the module unconditional.
2674               func_uncond_add_module $module
2675             fi
2676             if func_cond_module_p $module; then
2677               conditional=true
2678             else
2679               conditional=false
2680             fi
2681           fi
2682           deps=`func_get_dependencies $module | sed -e "$sed_dependencies_without_conditions"`
2683           # Duplicate dependencies are harmless, but Jim wants a warning.
2684           duplicated_deps=`echo "$deps" | LC_ALL=C sort | LC_ALL=C uniq -d`
2685           if test -n "$duplicated_deps"; then
2686             func_warning "module $module has duplicated dependencies: "`echo $duplicated_deps`
2687           fi
2688           if test -n "$inctests"; then
2689             testsmodule=`func_get_tests_module $module`
2690             if test -n "$testsmodule"; then
2691               deps="$deps $testsmodule"
2692             fi
2693           fi
2694           for dep in $deps; do
2695             # Determine whether to include the dependency or tests module.
2696             inc=true
2697             for word in `func_get_status $dep`; do
2698               case "$word" in
2699                 obsolete)
2700                   test -n "$incobsolete" \
2701                     || inc=false
2702                   ;;
2703                 c++-test)
2704                   test -z "$excl_cxx_tests" \
2705                     || inc=false
2706                   test -n "$fmtc_inc_all_tests" || test -n "$inc_cxx_tests" \
2707                     || inc=false
2708                   ;;
2709                 longrunning-test)
2710                   test -z "$excl_longrunning_tests" \
2711                     || inc=false
2712                   test -n "$fmtc_inc_all_tests" || test -n "$inc_longrunning_tests" \
2713                     || inc=false
2714                   ;;
2715                 privileged-test)
2716                   test -z "$excl_privileged_tests" \
2717                     || inc=false
2718                   test -n "$fmtc_inc_all_tests" || test -n "$inc_privileged_tests" \
2719                     || inc=false
2720                   ;;
2721                 unportable-test)
2722                   test -z "$excl_unportable_tests" \
2723                     || inc=false
2724                   test -n "$fmtc_inc_all_tests" || test -n "$inc_unportable_tests" \
2725                     || inc=false
2726                   ;;
2727                 *-test)
2728                   test -n "$fmtc_inc_all_tests" \
2729                     || inc=false
2730                   ;;
2731               esac
2732             done
2733             if $inc && func_acceptable "$dep"; then
2734               func_append inmodules " $dep"
2735               if test "$cond_dependencies" = true; then
2736                 escaped_dep=`echo "$dep" | sed -e "$sed_escape_dependency"`
2737                 sed_extract_condition1='/^ *'"$escaped_dep"' *$/{
2738                   s/^.*$/true/p
2739                 }'
2740                 sed_extract_condition2='/^ *'"$escaped_dep"' *\[.*\] *$/{
2741                   s/^ *'"$escaped_dep"' *\[\(.*\)\] *$/\1/p
2742                 }'
2743                 condition=`func_get_dependencies $module | sed -n -e "$sed_extract_condition1" -e "$sed_extract_condition2"`
2744                 if test "$condition" = true; then
2745                   condition=
2746                 fi
2747                 if test -n "$condition"; then
2748                   func_conddep_add_module "$module" "$dep" "$condition"
2749                 else
2750                   if $conditional; then
2751                     func_conddep_add_module "$module" "$dep" true
2752                   else
2753                     func_uncond_add_module "$dep"
2754                   fi
2755                 fi
2756               fi
2757             fi
2758           done
2759         fi
2760       fi
2761     done
2762     handledmodules=`for m in $handledmodules $inmodules_this_round; do echo $m; done | LC_ALL=C sort -u`
2763     # Remove $handledmodules from $inmodules.
2764     for m in $inmodules; do echo $m; done | LC_ALL=C sort -u > "$tmp"/queued-modules
2765     inmodules=`echo "$handledmodules" | LC_ALL=C join -v 2 - "$tmp"/queued-modules`
2766     fmtc_inc_all_tests="$inc_all_indirect_tests"
2767   done
2768   modules=`for m in $outmodules; do echo $m; done | LC_ALL=C sort -u`
2769   rm -f "$tmp"/queued-modules
2770 }
2771
2772 # func_show_module_list
2773 # Input:
2774 # - specified_modules  list of specified modules (one per line, sorted)
2775 # - modules         complete list of modules (one per line, sorted)
2776 # - tmp             pathname of a temporary directory
2777 func_show_module_list ()
2778 {
2779   if case "$TERM" in
2780        xterm*) test -t 1;;
2781        *) false;;
2782      esac; then
2783     # Assume xterm compatible escape sequences.
2784     bold_on=`printf '\x1b[1m'`
2785     bold_off=`printf '\x1b[0m'`
2786   else
2787     bold_on=
2788     bold_off=
2789   fi
2790   echo "Module list with included dependencies (indented):"
2791   echo "$specified_modules" | sed -e '/^$/d' -e 's/$/| /' > "$tmp"/specified-modules
2792   echo "$modules" | sed -e '/^$/d' \
2793     | LC_ALL=C join -t '|' -a2 "$tmp"/specified-modules - \
2794     | sed -e 's/^\(.*\)|.*/|\1/' -e 's/^/    /' -e 's/^    |\(.*\)$/  '"${bold_on}"'\1'"${bold_off}"'/'
2795 }
2796
2797 # func_modules_transitive_closure_separately
2798 # Determine main module list and tests-related module list separately.
2799 # The main module list is the transitive closure of the specified modules,
2800 # ignoring tests modules. Its lib/* sources go into $sourcebase/. If --lgpl
2801 # is specified, it will consist only of LGPLed source.
2802 # The tests-related module list is the transitive closure of the specified
2803 # modules, including tests modules, minus the main module list excluding
2804 # modules of applicability 'all'. Its lib/* sources (brought in through
2805 # dependencies of *-tests modules) go into $testsbase/. It may contain GPLed
2806 # source, even if --lgpl is specified.
2807 # Input:
2808 # - local_gnulib_dir  from --local-dir
2809 # - modcache        true or false, from --cache-modules/--no-cache-modules
2810 # - specified_modules  list of specified modules
2811 # - inctests        true if tests should be included, blank otherwise
2812 # - incobsolete     true if obsolete modules among dependencies should be
2813 #                   included, blank otherwise
2814 # - inc_cxx_tests   true if C++ interoperability tests should be included,
2815 #                   blank otherwise
2816 # - inc_longrunning_tests  true if long-runnings tests should be included,
2817 #                          blank otherwise
2818 # - inc_privileged_tests  true if tests that require root privileges should be
2819 #                         included, blank otherwise
2820 # - inc_unportable_tests  true if tests that fail on some platforms should be
2821 #                         included, blank otherwise
2822 # - inc_all_direct_tests   true if all kinds of problematic unit tests among
2823 #                          the unit tests of the specified modules should be
2824 #                          included, blank otherwise
2825 # - inc_all_indirect_tests   true if all kinds of problematic unit tests among
2826 #                            the unit tests of the dependencies should be
2827 #                            included, blank otherwise
2828 # - excl_cxx_tests   true if C++ interoperability tests should be excluded,
2829 #                    blank otherwise
2830 # - excl_longrunning_tests  true if long-runnings tests should be excluded,
2831 #                           blank otherwise
2832 # - excl_privileged_tests  true if tests that require root privileges should be
2833 #                          excluded, blank otherwise
2834 # - excl_unportable_tests  true if tests that fail on some platforms should be
2835 #                          excluded, blank otherwise
2836 # - avoidlist       list of modules to avoid
2837 # - cond_dependencies  true if conditional dependencies shall be supported,
2838 #                      blank otherwise
2839 # - tmp             pathname of a temporary directory
2840 # Output:
2841 # - main_modules    list of modules, including dependencies
2842 # - testsrelated_modules  list of tests-related modules, including dependencies
2843 # - conddep_dependers, conddep_condition  information about conditionally
2844 #                                         enabled modules
2845 func_modules_transitive_closure_separately ()
2846 {
2847   # Determine main module list.
2848   saved_inctests="$inctests"
2849   inctests=""
2850   modules="$specified_modules"
2851   func_modules_transitive_closure
2852   main_modules="$modules"
2853   inctests="$saved_inctests"
2854   if test $verbose -ge 1; then
2855     echo "Main module list:"
2856     echo "$main_modules" | sed -e 's/^/  /'
2857   fi
2858   # Determine tests-related module list.
2859   echo "$final_modules" | LC_ALL=C sort -u > "$tmp"/final-modules
2860   testsrelated_modules=`for module in $main_modules; do
2861                           if test \`func_get_applicability $module\` = main; then
2862                             echo $module
2863                           fi
2864                         done \
2865                         | LC_ALL=C sort -u | LC_ALL=C join -v 2 - "$tmp"/final-modules`
2866   if test $verbose -ge 1; then
2867     echo "Tests-related module list:"
2868     echo "$testsrelated_modules" | sed -e 's/^/  /'
2869   fi
2870 }
2871
2872 # func_determine_use_libtests
2873 # Determines whether a $testsbase/libtests.a is needed.
2874 # Input:
2875 # - local_gnulib_dir  from --local-dir
2876 # - modcache        true or false, from --cache-modules/--no-cache-modules
2877 # - testsrelated_modules  list of tests-related modules, including dependencies
2878 # Output:
2879 # - use_libtests    true if a $testsbase/libtests.a is needed, false otherwise
2880 func_determine_use_libtests ()
2881 {
2882   use_libtests=false
2883   for module in $testsrelated_modules; do
2884     func_verify_nontests_module
2885     if test -n "$module"; then
2886       all_files=`func_get_filelist $module`
2887       # Test whether some file in $all_files lies in lib/.
2888       for f in $all_files; do
2889         case $f in
2890           lib/*)
2891             use_libtests=true
2892             break 2
2893             ;;
2894         esac
2895       done
2896     fi
2897   done
2898 }
2899
2900 # func_modules_add_dummy
2901 # Input:
2902 # - local_gnulib_dir  from --local-dir
2903 # - modcache        true or false, from --cache-modules/--no-cache-modules
2904 # - modules         list of modules, including dependencies
2905 # Output:
2906 # - modules         list of modules, including 'dummy' if needed
2907 func_modules_add_dummy ()
2908 {
2909   # Determine whether any module provides a lib_SOURCES augmentation.
2910   have_lib_SOURCES=
2911   sed_remove_backslash_newline=':a
2912 /\\$/{
2913 s/\\$//
2914 N
2915 s/\n//
2916 ba
2917 }'
2918   for module in $modules; do
2919     func_verify_nontests_module
2920     if test -n "$module"; then
2921       # Extract the value of "lib_SOURCES += ...".
2922       for file in `func_get_automake_snippet "$module" | sed -e "$sed_remove_backslash_newline" | sed -n -e 's,^lib_SOURCES[     ]*+=\([^#]*\).*$,\1,p'`; do
2923         # Ignore .h files since they are not compiled.
2924         case "$file" in
2925           *.h) ;;
2926           *)
2927             have_lib_SOURCES=yes
2928             break 2
2929             ;;
2930         esac
2931       done
2932     fi
2933   done
2934   # Add the dummy module, to make sure the library will be non-empty.
2935   if test -z "$have_lib_SOURCES"; then
2936     if func_acceptable "dummy"; then
2937       func_append modules " dummy"
2938     fi
2939   fi
2940 }
2941
2942 # func_modules_add_dummy_separately
2943 # Input:
2944 # - local_gnulib_dir  from --local-dir
2945 # - modcache        true or false, from --cache-modules/--no-cache-modules
2946 # - main_modules    list of modules, including dependencies
2947 # - testsrelated_modules  list of tests-related modules, including dependencies
2948 # - use_libtests    true if a $testsbase/libtests.a is needed, false otherwise
2949 # Output:
2950 # - main_modules    list of modules, including 'dummy' if needed
2951 # - testsrelated_modules  list of tests-related modules, including 'dummy' if
2952 #                         needed
2953 func_modules_add_dummy_separately ()
2954 {
2955   # Add the dummy module to the main module list if needed.
2956   modules="$main_modules"
2957   func_modules_add_dummy
2958   main_modules="$modules"
2959
2960   # Add the dummy module to the tests-related module list if needed.
2961   if $use_libtests; then
2962     modules="$testsrelated_modules"
2963     func_modules_add_dummy
2964     testsrelated_modules="$modules"
2965   fi
2966 }
2967
2968 # func_modules_notice
2969 # Input:
2970 # - local_gnulib_dir  from --local-dir
2971 # - modcache        true or false, from --cache-modules/--no-cache-modules
2972 # - verbose         integer, default 0, inc/decremented by --verbose/--quiet
2973 # - modules         list of modules, including dependencies
2974 func_modules_notice ()
2975 {
2976   if test $verbose -ge -1; then
2977     for module in $modules; do
2978       func_verify_module
2979       if test -n "$module"; then
2980         msg=`func_get_notice $module`
2981         if test -n "$msg"; then
2982           echo "Notice from module $module:"
2983           echo "$msg" | sed -e 's/^/  /'
2984         fi
2985       fi
2986     done
2987   fi
2988 }
2989
2990 # func_modules_to_filelist
2991 # Input:
2992 # - local_gnulib_dir  from --local-dir
2993 # - modcache        true or false, from --cache-modules/--no-cache-modules
2994 # - modules         list of modules, including dependencies
2995 # Output:
2996 # - files           list of files
2997 func_modules_to_filelist ()
2998 {
2999   files=
3000   for module in $modules; do
3001     func_verify_module
3002     if test -n "$module"; then
3003       fs=`func_get_filelist $module`
3004       func_append files " $fs"
3005     fi
3006   done
3007   files=`for f in $files; do echo $f; done | LC_ALL=C sort -u`
3008 }
3009
3010 # func_modules_to_filelist_separately
3011 # Determine the final file lists.
3012 # They must be computed separately, because files in lib/* go into
3013 # $sourcebase/ if they are in the main file list but into $testsbase/
3014 # if they are in the tests-related file list. Furthermore lib/dummy.c
3015 # can be in both.
3016 # Input:
3017 # - local_gnulib_dir  from --local-dir
3018 # - modcache        true or false, from --cache-modules/--no-cache-modules
3019 # - main_modules    list of modules, including dependencies
3020 # - testsrelated_modules  list of tests-related modules, including dependencies
3021 func_modules_to_filelist_separately ()
3022 {
3023   # Determine final main file list.
3024   modules="$main_modules"
3025   func_modules_to_filelist
3026   main_files="$files"
3027   # Determine final tests-related file list.
3028   modules="$testsrelated_modules"
3029   func_modules_to_filelist
3030   testsrelated_files=`echo "$files" | sed -e 's,^lib/,tests=lib/,'`
3031   # Merge both file lists.
3032   sed_remove_empty_lines='/^$/d'
3033   files=`{ echo "$main_files"; echo "$testsrelated_files"; } | sed -e "$sed_remove_empty_lines" | LC_ALL=C sort -u`
3034   if test $verbose -ge 0; then
3035     echo "File list:"
3036     sed_prettyprint_files='s,^tests=lib/\(.*\)$,lib/\1 -> tests/\1,'
3037     echo "$files" | sed -e "$sed_prettyprint_files" -e 's/^/  /'
3038   fi
3039 }
3040
3041 # func_compute_include_guard_prefix
3042 # Determine include_guard_prefix.
3043 # Input:
3044 # - macro_prefix    prefix of gl_LIBOBJS macros to use
3045 # Output:
3046 # - include_guard_prefix  replacement for ${gl_include_guard_prefix}
3047 # - sed_replace_include_guard_prefix
3048 #                   sed expression for resolving ${gl_include_guard_prefix}
3049 func_compute_include_guard_prefix ()
3050 {
3051   if test "$macro_prefix" = gl; then
3052     include_guard_prefix='GL'
3053   else
3054     include_guard_prefix='GL_'`echo "$macro_prefix" | LC_ALL=C tr '[a-z]' '[A-Z]'`
3055   fi
3056   sed_replace_include_guard_prefix='s/\${gl_include_guard_prefix}/'"${include_guard_prefix}"'/g'
3057 }
3058
3059 # func_execute_command command [args...]
3060 # Executes a command.
3061 # Uses also the variables
3062 # - verbose         integer, default 0, inc/decremented by --verbose/--quiet
3063 func_execute_command ()
3064 {
3065   if test $verbose -ge 0; then
3066     echo "executing $*"
3067     "$@"
3068   else
3069     # Commands like automake produce output to stderr even when they succeed.
3070     # Turn this output off if the command succeeds.
3071     "$@" > "$tmp"/cmdout 2>&1
3072     cmdret=$?
3073     if test $cmdret = 0; then
3074       rm -f "$tmp"/cmdout
3075     else
3076       echo "executing $*"
3077       cat "$tmp"/cmdout 1>&2
3078       rm -f "$tmp"/cmdout
3079       (exit $cmdret)
3080     fi
3081   fi
3082 }
3083
3084 # func_dest_tmpfilename file
3085 # determines the name of a temporary file (file is relative to destdir).
3086 # Input:
3087 # - destdir         target directory
3088 # - doit            : if actions shall be executed, false if only to be printed
3089 # - tmp             pathname of a temporary directory
3090 # Sets variable:
3091 #   - tmpfile       absolute filename of the temporary file
3092 func_dest_tmpfilename ()
3093 {
3094   if $doit; then
3095     # Put the new contents of $file in a file in the same directory (needed
3096     # to guarantee that an 'mv' to "$destdir/$file" works).
3097     tmpfile="$destdir/$1.tmp"
3098   else
3099     # Put the new contents of $file in a file in a temporary directory
3100     # (because the directory of "$file" might not exist).
3101     tmpfile="$tmp"/`basename "$1"`.tmp
3102   fi
3103 }
3104
3105 # func_add_file
3106 # copies a file from gnulib into the destination directory. The destination
3107 # is known to not exist.
3108 # Input:
3109 # - destdir         target directory
3110 # - local_gnulib_dir  from --local-dir
3111 # - modcache        true or false, from --cache-modules/--no-cache-modules
3112 # - f               the original file name
3113 # - lookedup_file   name of the merged (combined) file
3114 # - lookedup_tmp    true if it is located in the tmp directory, blank otherwise
3115 # - g               the rewritten file name
3116 # - tmpfile         absolute filename of the temporary file
3117 # - doit            : if actions shall be executed, false if only to be printed
3118 # - symbolic        true if files should be symlinked, copied otherwise
3119 # - lsymbolic       true if files from local_gnulib_dir should be symlinked,
3120 #                   copied otherwise
3121 func_add_file ()
3122 {
3123   if $doit; then
3124     echo "Copying file $g"
3125     if { test -n "$symbolic" \
3126          || { test -n "$lsymbolic" \
3127               && test "$lookedup_file" = "$local_gnulib_dir/$f"; }; } \
3128        && test -z "$lookedup_tmp" \
3129        && cmp "$lookedup_file" "$tmpfile" > /dev/null; then
3130       func_ln_if_changed "$lookedup_file" "$destdir/$g"
3131     else
3132       mv -f "$tmpfile" "$destdir/${g}" || func_fatal_error "failed"
3133     fi
3134   else
3135     echo "Copy file $g"
3136   fi
3137 }
3138
3139 # func_update_file
3140 # copies a file from gnulib into the destination directory. The destination
3141 # is known to exist.
3142 # Input:
3143 # - destdir         target directory
3144 # - local_gnulib_dir  from --local-dir
3145 # - modcache        true or false, from --cache-modules/--no-cache-modules
3146 # - f               the original file name
3147 # - lookedup_file   name of the merged (combined) file
3148 # - lookedup_tmp    true if it is located in the tmp directory, blank otherwise
3149 # - g               the rewritten file name
3150 # - tmpfile         absolute filename of the temporary file
3151 # - doit            : if actions shall be executed, false if only to be printed
3152 # - symbolic        true if files should be symlinked, copied otherwise
3153 # - lsymbolic       true if files from local_gnulib_dir should be symlinked,
3154 #                   copied otherwise
3155 # - already_present  nonempty if the file should already exist, empty otherwise
3156 func_update_file ()
3157 {
3158   if cmp "$destdir/$g" "$tmpfile" > /dev/null; then
3159     : # The file has not changed.
3160   else
3161     # Replace the file.
3162     if $doit; then
3163       if test -n "$already_present"; then
3164         echo "Updating file $g (backup in ${g}~)"
3165       else
3166         echo "Replacing file $g (non-gnulib code backed up in ${g}~) !!"
3167       fi
3168       mv -f "$destdir/$g" "$destdir/${g}~" || func_fatal_error "failed"
3169       if { test -n "$symbolic" \
3170            || { test -n "$lsymbolic" \
3171                 && test "$lookedup_file" = "$local_gnulib_dir/$f"; }; } \
3172          && test -z "$lookedup_tmp" \
3173          && cmp "$lookedup_file" "$tmpfile" > /dev/null; then
3174         func_ln_if_changed "$lookedup_file" "$destdir/$g"
3175       else
3176         mv -f "$tmpfile" "$destdir/${g}" || func_fatal_error "failed"
3177       fi
3178     else
3179       if test -n "$already_present"; then
3180         echo "Update file $g (backup in ${g}~)"
3181       else
3182         echo "Replace file $g (non-gnulib code backed up in ${g}~) !!"
3183       fi
3184     fi
3185   fi
3186 }
3187
3188 # func_emit_lib_Makefile_am
3189 # emits the contents of library makefile to standard output.
3190 # Input:
3191 # - local_gnulib_dir  from --local-dir
3192 # - modcache        true or false, from --cache-modules/--no-cache-modules
3193 # - modules         list of modules, including dependencies
3194 # - libname         library name
3195 # - pobase          directory relative to destdir where to place *.po files
3196 # - auxdir          directory relative to destdir where to place build aux files
3197 # - makefile_name   from --makefile-name
3198 # - libtool         true if libtool will be used, false or blank otherwise
3199 # - macro_prefix    prefix of gl_LIBOBJS macros to use
3200 # - po_domain       prefix of i18n domain to use (without -gnulib suffix)
3201 # - witness_c_macro  from --witness-c-macro
3202 # - actioncmd       (optional) command that will reproduce this invocation
3203 # - for_test        true if creating a package for testing, false otherwise
3204 # - sed_replace_include_guard_prefix
3205 #                   sed expression for resolving ${gl_include_guard_prefix}
3206 # - destfile        filename relative to destdir of makefile being generated
3207 # Input/Output:
3208 # - makefile_am_edits and makefile_am_edit${edit}_{dir,var,val}
3209 #                   list of edits to be done to Makefile.am variables
3210 # Output:
3211 # - uses_subdirs    nonempty if object files in subdirs exist
3212 func_emit_lib_Makefile_am ()
3213 {
3214   # When creating an includable Makefile.am snippet, augment variables with
3215   # += instead of assigning them.
3216   if test -n "$makefile_name"; then
3217     assign='+='
3218   else
3219     assign='='
3220   fi
3221   if test "$libtool" = true; then
3222     libext=la
3223     perhapsLT=LT
3224     sed_eliminate_LDFLAGS="$sed_noop"
3225   else
3226     libext=a
3227     perhapsLT=
3228     sed_eliminate_LDFLAGS='/^lib_LDFLAGS[        ]*+=/d'
3229   fi
3230   if $for_test; then
3231     # When creating a package for testing: Attempt to provoke failures,
3232     # especially link errors, already during "make" rather than during
3233     # "make check", because "make check" is not possible in a cross-compiling
3234     # situation. Turn check_PROGRAMS into noinst_PROGRAMS.
3235     sed_transform_check_PROGRAMS='s,check_PROGRAMS,noinst_PROGRAMS,g'
3236   else
3237     sed_transform_check_PROGRAMS="$sed_noop"
3238   fi
3239   echo "## DO NOT EDIT! GENERATED AUTOMATICALLY!"
3240   echo "## Process this file with automake to produce Makefile.in."
3241   func_emit_copyright_notice
3242   if test -n "$actioncmd"; then
3243     # The maximum line length (excluding the terminating newline) of any file
3244     # that is to be preprocessed by config.status is 3070.  config.status uses
3245     # awk, and the HP-UX 11.00 awk fails if a line has length >= 3071;
3246     # similarly, the IRIX 6.5 awk fails if a line has length >= 3072.
3247     len=`echo "$actioncmd" | wc -c`
3248     if test -n "$len" && test "$len" -le 3000; then
3249       echo "# Reproduce by: $actioncmd"
3250     fi
3251   fi
3252   echo
3253   uses_subdirs=
3254   {
3255     for module in $modules; do
3256       func_verify_nontests_module
3257       if test -n "$module"; then
3258         {
3259           func_get_automake_snippet_conditional "$module" |
3260             LC_ALL=C \
3261             sed -e 's,lib_LIBRARIES,lib%_LIBRARIES,g' \
3262                 -e 's,lib_LTLIBRARIES,lib%_LTLIBRARIES,g' \
3263                 -e "$sed_eliminate_LDFLAGS" \
3264                 -e 's,lib_\([A-Z][A-Z]*\),'"${libname}_${libext}"'_\1,g' \
3265                 -e 's,lib%_LIBRARIES,lib_LIBRARIES,g' \
3266                 -e 's,lib%_LTLIBRARIES,lib_LTLIBRARIES,g' \
3267                 -e "$sed_transform_check_PROGRAMS" \
3268                 -e "$sed_replace_include_guard_prefix"
3269           if test "$module" = 'alloca'; then
3270             echo "${libname}_${libext}_LIBADD += @${perhapsLT}ALLOCA@"
3271             echo "${libname}_${libext}_DEPENDENCIES += @${perhapsLT}ALLOCA@"
3272           fi
3273         } > "$tmp"/amsnippet1
3274         {
3275           func_get_automake_snippet_unconditional "$module" |
3276             LC_ALL=C sed -e 's,lib_\([A-Z][A-Z]*\),'"${libname}_${libext}"'_\1,g'
3277         } > "$tmp"/amsnippet2
3278         # Skip the contents if it's entirely empty.
3279         if grep '[^      ]' "$tmp"/amsnippet1 "$tmp"/amsnippet2 > /dev/null ; then
3280           echo "## begin gnulib module $module"
3281           echo
3282           if test "$cond_dependencies" = true; then
3283             if func_cond_module_p "$module"; then
3284               func_module_conditional_name "$module"
3285               echo "if $conditional"
3286             fi
3287           fi
3288           cat "$tmp"/amsnippet1
3289           if test "$cond_dependencies" = true; then
3290             if func_cond_module_p "$module"; then
3291               echo "endif"
3292             fi
3293           fi
3294           cat "$tmp"/amsnippet2
3295           echo "## end   gnulib module $module"
3296           echo
3297         fi
3298         rm -f "$tmp"/amsnippet1 "$tmp"/amsnippet2
3299         # Test whether there are some source files in subdirectories.
3300         for f in `func_get_filelist "$module"`; do
3301           case $f in
3302             lib/*/*.c)
3303               uses_subdirs=yes
3304               break
3305               ;;
3306           esac
3307         done
3308       fi
3309     done
3310   } > "$tmp"/allsnippets
3311   if test -z "$makefile_name"; then
3312     # If there are source files in subdirectories, prevent collision of the
3313     # object files (example: hash.c and libxml/hash.c).
3314     subdir_options=
3315     if test -n "$uses_subdirs"; then
3316       subdir_options=' subdir-objects'
3317     fi
3318     echo "AUTOMAKE_OPTIONS = 1.5 gnits${subdir_options}"
3319   fi
3320   echo
3321   if test -z "$makefile_name"; then
3322     echo "SUBDIRS ="
3323     echo "noinst_HEADERS ="
3324     echo "noinst_LIBRARIES ="
3325     echo "noinst_LTLIBRARIES ="
3326     # Automake versions < 1.9b create an empty pkgdatadir at installation time
3327     # if you specify pkgdata_DATA to empty. This is a workaround.
3328     if grep '^pkgdata_DATA *+=' "$tmp"/allsnippets > /dev/null; then
3329       echo "pkgdata_DATA ="
3330     fi
3331     echo "EXTRA_DIST ="
3332     echo "BUILT_SOURCES ="
3333     echo "SUFFIXES ="
3334   fi
3335   echo "MOSTLYCLEANFILES $assign core *.stackdump"
3336   if test -z "$makefile_name"; then
3337     echo "MOSTLYCLEANDIRS ="
3338     echo "CLEANFILES ="
3339     echo "DISTCLEANFILES ="
3340     echo "MAINTAINERCLEANFILES ="
3341   fi
3342   # Execute edits that apply to the Makefile.am being generated.
3343   edit=0
3344   while test $edit != $makefile_am_edits; do
3345     edit=`expr $edit + 1`
3346     eval dir=\"\$makefile_am_edit${edit}_dir\"
3347     eval var=\"\$makefile_am_edit${edit}_var\"
3348     eval val=\"\$makefile_am_edit${edit}_val\"
3349     if test -n "$var"; then
3350       if test "${dir}Makefile.am" = "$destfile" || test "./${dir}Makefile.am" = "$destfile"; then
3351         echo "${var} += ${val}"
3352         eval "makefile_am_edit${edit}_var="
3353       fi
3354     fi
3355   done
3356   if test -n "$witness_c_macro"; then
3357     cppflags_part1=" -D$witness_c_macro=1"
3358   else
3359     cppflags_part1=
3360   fi
3361   if $for_test; then
3362     cppflags_part2=" -DGNULIB_STRICT_CHECKING=1"
3363   else
3364     cppflags_part2=
3365   fi
3366   if test -z "$makefile_name"; then
3367     echo
3368     echo "AM_CPPFLAGS =$cppflags_part1$cppflags_part2"
3369     echo "AM_CFLAGS ="
3370   else
3371     if test -n "$cppflags_part1$cppflags_part2"; then
3372       echo
3373       echo "AM_CPPFLAGS +=$cppflags_part1$cppflags_part2"
3374     fi
3375   fi
3376   echo
3377   if LC_ALL=C grep "^[a-zA-Z0-9_]*_${perhapsLT}LIBRARIES *+\{0,1\}= *$libname\\.$libext\$" "$tmp"/allsnippets > /dev/null \
3378      || { test -n "$makefile_name" \
3379           && test -f "$sourcebase/Makefile.am" \
3380           && LC_ALL=C grep "^[a-zA-Z0-9_]*_${perhapsLT}LIBRARIES *+\{0,1\}= *$libname\\.$libext\$" "$sourcebase/Makefile.am" > /dev/null; \
3381         }; then
3382     # One of the snippets or the user's Makefile.am already specifies an
3383     # installation location for the library. Don't confuse automake by saying
3384     # it should not be installed.
3385     :
3386   else
3387     # By default, the generated library should not be installed.
3388     echo "noinst_${perhapsLT}LIBRARIES += $libname.$libext"
3389   fi
3390   echo
3391   echo "${libname}_${libext}_SOURCES ="
3392   # Here we use $(LIBOBJS), not @LIBOBJS@. The value is the same. However,
3393   # automake during its analysis looks for $(LIBOBJS), not for @LIBOBJS@.
3394   echo "${libname}_${libext}_LIBADD = \$(${macro_prefix}_${perhapsLT}LIBOBJS)"
3395   echo "${libname}_${libext}_DEPENDENCIES = \$(${macro_prefix}_${perhapsLT}LIBOBJS)"
3396   echo "EXTRA_${libname}_${libext}_SOURCES ="
3397   if test "$libtool" = true; then
3398     echo "${libname}_${libext}_LDFLAGS = \$(AM_LDFLAGS)"
3399     echo "${libname}_${libext}_LDFLAGS += -no-undefined"
3400     # Synthesize an ${libname}_${libext}_LDFLAGS augmentation by combining
3401     # the link dependencies of all modules.
3402     for module in $modules; do
3403       func_verify_nontests_module
3404       if test -n "$module"; then
3405         func_get_link_directive "$module"
3406       fi
3407     done \
3408       | LC_ALL=C sed -e '/^$/d' -e 's/ when linking with libtool.*//' \
3409       | LC_ALL=C sort -u \
3410       | LC_ALL=C sed -e 's/^/'"${libname}_${libext}"'_LDFLAGS += /'
3411   fi
3412   echo
3413   if test -n "$pobase"; then
3414     echo "AM_CPPFLAGS += -DDEFAULT_TEXT_DOMAIN=\\\"${po_domain}-gnulib\\\""
3415     echo
3416   fi
3417   cat "$tmp"/allsnippets \
3418     | sed -e 's|\$(top_srcdir)/build-aux/|$(top_srcdir)/'"$auxdir"'/|g'
3419   echo
3420   echo "mostlyclean-local: mostlyclean-generic"
3421   echo "        @for dir in '' \$(MOSTLYCLEANDIRS); do \\"
3422   echo "          if test -n \"\$\$dir\" && test -d \$\$dir; then \\"
3423   echo "            echo \"rmdir \$\$dir\"; rmdir \$\$dir; \\"
3424   echo "          fi; \\"
3425   echo "        done; \\"
3426   echo "        :"
3427   rm -f "$tmp"/allsnippets
3428 }
3429
3430 # func_emit_po_Makevars
3431 # emits the contents of po/ makefile parameterization to standard output.
3432 # Input:
3433 # - local_gnulib_dir  from --local-dir
3434 # - modcache        true or false, from --cache-modules/--no-cache-modules
3435 # - sourcebase      directory relative to destdir where to place source code
3436 # - pobase          directory relative to destdir where to place *.po files
3437 # - po_domain       prefix of i18n domain to use (without -gnulib suffix)
3438 func_emit_po_Makevars ()
3439 {
3440   echo "## DO NOT EDIT! GENERATED AUTOMATICALLY!"
3441   func_emit_copyright_notice
3442   echo
3443   echo "# Usually the message domain is the same as the package name."
3444   echo "# But here it has a '-gnulib' suffix."
3445   echo "DOMAIN = ${po_domain}-gnulib"
3446   echo
3447   echo "# These two variables depend on the location of this directory."
3448   echo "subdir = ${pobase}"
3449   echo "top_builddir = "`echo "$pobase" | sed -e 's,//*,/,g' -e 's,[^/][^/]*,..,g'`
3450   echo
3451   cat <<\EOF
3452 # These options get passed to xgettext.
3453 XGETTEXT_OPTIONS = \
3454   --keyword=_ --flag=_:1:pass-c-format \
3455   --keyword=N_ --flag=N_:1:pass-c-format \
3456   --keyword='proper_name:1,"This is a proper name. See the gettext manual, section Names."' \
3457   --keyword='proper_name_utf8:1,"This is a proper name. See the gettext manual, section Names."' \
3458   --flag=error:3:c-format --flag=error_at_line:5:c-format
3459
3460 # This is the copyright holder that gets inserted into the header of the
3461 # $(DOMAIN).pot file.  gnulib is copyrighted by the FSF.
3462 COPYRIGHT_HOLDER = Free Software Foundation, Inc.
3463
3464 # This is the email address or URL to which the translators shall report
3465 # bugs in the untranslated strings:
3466 # - Strings which are not entire sentences, see the maintainer guidelines
3467 #   in the GNU gettext documentation, section 'Preparing Strings'.
3468 # - Strings which use unclear terms or require additional context to be
3469 #   understood.
3470 # - Strings which make invalid assumptions about notation of date, time or
3471 #   money.
3472 # - Pluralisation problems.
3473 # - Incorrect English spelling.
3474 # - Incorrect formatting.
3475 # It can be your email address, or a mailing list address where translators
3476 # can write to without being subscribed, or the URL of a web page through
3477 # which the translators can contact you.
3478 MSGID_BUGS_ADDRESS = bug-gnulib@gnu.org
3479
3480 # This is the list of locale categories, beyond LC_MESSAGES, for which the
3481 # message catalogs shall be used.  It is usually empty.
3482 EXTRA_LOCALE_CATEGORIES =
3483
3484 # This tells whether the $(DOMAIN).pot file contains messages with an 'msgctxt'
3485 # context.  Possible values are "yes" and "no".  Set this to yes if the
3486 # package uses functions taking also a message context, like pgettext(), or
3487 # if in $(XGETTEXT_OPTIONS) you define keywords with a context argument.
3488 USE_MSGCTXT = no
3489 EOF
3490 }
3491
3492 # func_emit_po_POTFILES_in
3493 # emits the file list to be passed to xgettext to standard output.
3494 # Input:
3495 # - local_gnulib_dir  from --local-dir
3496 # - modcache        true or false, from --cache-modules/--no-cache-modules
3497 # - sourcebase      directory relative to destdir where to place source code
3498 # - files           list of new files
3499 func_emit_po_POTFILES_in ()
3500 {
3501   echo "## DO NOT EDIT! GENERATED AUTOMATICALLY!"
3502   func_emit_copyright_notice
3503   echo
3504   echo "# List of files which contain translatable strings."
3505   echo "$files" | sed -n -e "s,^lib/,$sourcebase/,p"
3506 }
3507
3508 # func_emit_tests_Makefile_am witness_macro
3509 # emits the contents of tests makefile to standard output.
3510 # Input:
3511 # - local_gnulib_dir  from --local-dir
3512 # - modcache        true or false, from --cache-modules/--no-cache-modules
3513 # - modules         list of modules, including dependencies
3514 # - libname         library name
3515 # - auxdir          directory relative to destdir where to place build aux files
3516 # - makefile_name   from --makefile-name
3517 # - libtool         true if libtool will be used, false or blank otherwise
3518 # - sourcebase      relative directory containing lib source code
3519 # - m4base          relative directory containing autoconf macros
3520 # - testsbase       relative directory containing unit test code
3521 # - macro_prefix    prefix of gl_LIBOBJS macros to use
3522 # - witness_c_macro  from --witness-c-macro
3523 # - for_test        true if creating a package for testing, false otherwise
3524 # - single_configure  true if a single configure file should be generated,
3525 #                     false for a separate configure file for the tests
3526 # - use_libtests    true if a libtests.a should be built, false otherwise
3527 # - sed_replace_include_guard_prefix
3528 #                   sed expression for resolving ${gl_include_guard_prefix}
3529 # - destfile        filename relative to destdir of makefile being generated
3530 # Input/Output:
3531 # - makefile_am_edits and makefile_am_edit${edit}_{dir,var,val}
3532 #                   list of edits to be done to Makefile.am variables
3533 # Output:
3534 # - uses_subdirs    nonempty if object files in subdirs exist
3535 func_emit_tests_Makefile_am ()
3536 {
3537   witness_macro="$1"
3538   if test "$libtool" = true; then
3539     libext=la
3540     sed_eliminate_LDFLAGS="$sed_noop"
3541   else
3542     libext=a
3543     sed_eliminate_LDFLAGS='/^lib_LDFLAGS[        ]*+=/d'
3544   fi
3545   if $for_test; then
3546     # When creating a package for testing: Attempt to provoke failures,
3547     # especially link errors, already during "make" rather than during
3548     # "make check", because "make check" is not possible in a cross-compiling
3549     # situation. Turn check_PROGRAMS into noinst_PROGRAMS.
3550     sed_transform_check_PROGRAMS='s,check_PROGRAMS,noinst_PROGRAMS,g'
3551   else
3552     sed_transform_check_PROGRAMS="$sed_noop"
3553   fi
3554   testsbase_inverse=`echo "$testsbase" | sed -e 's,/$,,' | sed -e 's,[^/][^/]*,..,g'`
3555   echo "## DO NOT EDIT! GENERATED AUTOMATICALLY!"
3556   echo "## Process this file with automake to produce Makefile.in."
3557   func_emit_copyright_notice
3558   echo
3559   uses_subdirs=
3560   {
3561     for module in $modules; do
3562       if $for_test && ! $single_configure; then
3563         func_verify_tests_module
3564       else
3565         func_verify_module
3566       fi
3567       if test -n "$module"; then
3568         {
3569           func_get_automake_snippet "$module" |
3570             LC_ALL=C \
3571             sed -e 's,lib_LIBRARIES,lib%_LIBRARIES,g' \
3572                 -e 's,lib_LTLIBRARIES,lib%_LTLIBRARIES,g' \
3573                 -e "$sed_eliminate_LDFLAGS" \
3574                 -e 's,lib_\([A-Z][A-Z]*\),libtests_a_\1,g' \
3575                 -e 's,lib%_LIBRARIES,lib_LIBRARIES,g' \
3576                 -e 's,lib%_LTLIBRARIES,lib_LTLIBRARIES,g' \
3577                 -e "$sed_transform_check_PROGRAMS" \
3578                 -e "$sed_replace_include_guard_prefix"
3579           if $use_libtests && test "$module" = 'alloca'; then
3580             echo "libtests_a_LIBADD += @${perhapsLT}ALLOCA@"
3581             echo "libtests_a_DEPENDENCIES += @${perhapsLT}ALLOCA@"
3582           fi
3583         } > "$tmp"/amsnippet
3584         # Skip the contents if it's entirely empty.
3585         if grep '[^      ]' "$tmp"/amsnippet > /dev/null ; then
3586           # Mention long-running tests at the end.
3587           ofd=3
3588           for word in `func_get_status "$module"`; do
3589             if test "$word" = 'longrunning-test'; then
3590               ofd=4
3591               break
3592             fi
3593           done
3594           { echo "## begin gnulib module $module"
3595             echo
3596             cat "$tmp"/amsnippet
3597             echo "## end   gnulib module $module"
3598             echo
3599           } >&$ofd
3600         fi
3601         rm -f "$tmp"/amsnippet
3602         # Test whether there are some source files in subdirectories.
3603         for f in `func_get_filelist "$module"`; do
3604           case $f in
3605             lib/*/*.c | tests/*/*.c)
3606               uses_subdirs=yes
3607               break
3608               ;;
3609           esac
3610         done
3611       fi
3612     done
3613   } 3> "$tmp"/main_snippets 4> "$tmp"/longrunning_snippets
3614   # Generate dependencies here, since it eases the debugging of test failures.
3615   # If there are source files in subdirectories, prevent collision of the
3616   # object files (example: hash.c and libxml/hash.c).
3617   subdir_options=
3618   if test -n "$uses_subdirs"; then
3619     subdir_options=' subdir-objects'
3620   fi
3621   echo "AUTOMAKE_OPTIONS = 1.5 foreign${subdir_options}"
3622   echo
3623   if $for_test && ! $single_configure; then
3624     echo "ACLOCAL_AMFLAGS = -I ${testsbase_inverse}/${m4base}"
3625     echo
3626   fi
3627   # Nothing is being added to SUBDIRS; nevertheless the existence of this
3628   # variable is needed to avoid an error from automake:
3629   #   "AM_GNU_GETTEXT used but SUBDIRS not defined"
3630   echo "SUBDIRS = ."
3631   echo "TESTS ="
3632   echo "XFAIL_TESTS ="
3633   echo "TESTS_ENVIRONMENT ="
3634   echo "noinst_PROGRAMS ="
3635   if ! $for_test; then
3636     echo "check_PROGRAMS ="
3637   fi
3638   echo "noinst_HEADERS ="
3639   echo "noinst_LIBRARIES ="
3640   if $use_libtests; then
3641     if $for_test; then
3642       echo "noinst_LIBRARIES += libtests.a"
3643     else
3644       echo "check_LIBRARIES = libtests.a"
3645     fi
3646   fi
3647   # Automake versions < 1.9b create an empty pkgdatadir at installation time
3648   # if you specify pkgdata_DATA to empty. This is a workaround.
3649   if grep '^pkgdata_DATA *+=' "$tmp"/main_snippets "$tmp"/longrunning_snippets > /dev/null; then
3650     echo "pkgdata_DATA ="
3651   fi
3652   echo "EXTRA_DIST ="
3653   echo "BUILT_SOURCES ="
3654   echo "SUFFIXES ="
3655   echo "MOSTLYCLEANFILES = core *.stackdump"
3656   echo "MOSTLYCLEANDIRS ="
3657   echo "CLEANFILES ="
3658   echo "DISTCLEANFILES ="
3659   echo "MAINTAINERCLEANFILES ="
3660   # Execute edits that apply to the Makefile.am being generated.
3661   edit=0
3662   while test $edit != $makefile_am_edits; do
3663     edit=`expr $edit + 1`
3664     eval dir=\"\$makefile_am_edit${edit}_dir\"
3665     eval var=\"\$makefile_am_edit${edit}_var\"
3666     eval val=\"\$makefile_am_edit${edit}_val\"
3667     if test -n "$var"; then
3668       if test "${dir}Makefile.am" = "$destfile" || test "./${dir}Makefile.am" = "$destfile"; then
3669         echo "${var} += ${val}"
3670         eval "makefile_am_edit${edit}_var="
3671       fi
3672     fi
3673   done
3674   echo
3675   echo "AM_CPPFLAGS = \\"
3676   if $for_test; then
3677     echo "  -DGNULIB_STRICT_CHECKING=1 \\"
3678   fi
3679   if test -n "$witness_c_macro"; then
3680     echo "  -D$witness_c_macro=1 \\"
3681   fi
3682   if test -n "${witness_macro}"; then
3683     echo "  -D@${witness_macro}@=1 \\"
3684   fi
3685   echo "  -I. -I\$(srcdir) \\"
3686   echo "  -I${testsbase_inverse} -I\$(srcdir)/${testsbase_inverse} \\"
3687   echo "  -I${testsbase_inverse}/${sourcebase-lib} -I\$(srcdir)/${testsbase_inverse}/${sourcebase-lib}"
3688   echo
3689   local_ldadd_before=''
3690   local_ldadd_after=''
3691   if $use_libtests; then
3692     # All test programs need to be linked with libtests.a.
3693     # It needs to be passed to the linker before ${libname}.${libext}, since
3694     # the tests-related modules depend on the main modules.
3695     # It also needs to be passed to the linker after ${libname}.${libext}
3696     # because the latter might contain incomplete modules (such as the 'error'
3697     # module whose dependency to 'progname' is voluntarily omitted).
3698     # The LIBTESTS_LIBDEPS can be passed to the linker once or twice, it does
3699     # not matter.
3700     local_ldadd_before=' libtests.a'
3701     local_ldadd_after=' libtests.a $(LIBTESTS_LIBDEPS)'
3702   fi
3703   echo "LDADD =${local_ldadd_before} ${testsbase_inverse}/${sourcebase-lib}/${libname}.${libext}${local_ldadd_after}"
3704   echo
3705   if $use_libtests; then
3706     echo "libtests_a_SOURCES ="
3707     # Here we use $(LIBOBJS), not @LIBOBJS@. The value is the same. However,
3708     # automake during its analysis looks for $(LIBOBJS), not for @LIBOBJS@.
3709     echo "libtests_a_LIBADD = \$(${macro_prefix}tests_LIBOBJS)"
3710     echo "libtests_a_DEPENDENCIES = \$(${macro_prefix}tests_LIBOBJS)"
3711     echo "EXTRA_libtests_a_SOURCES ="
3712     # The circular dependency in LDADD requires this.
3713     echo "AM_LIBTOOLFLAGS = --preserve-dup-deps"
3714     echo
3715   fi
3716   # Many test scripts use ${EXEEXT} or ${srcdir}.
3717   # EXEEXT is defined by AC_PROG_CC through autoconf.
3718   # srcdir is defined by autoconf and automake.
3719   echo "TESTS_ENVIRONMENT += EXEEXT='@EXEEXT@' srcdir='\$(srcdir)'"
3720   echo
3721   cat "$tmp"/main_snippets "$tmp"/longrunning_snippets \
3722     | sed -e 's|\$(top_srcdir)/build-aux/|$(top_srcdir)/'"$auxdir"'/|g'
3723   echo "# Clean up after Solaris cc."
3724   echo "clean-local:"
3725   echo "        rm -rf SunWS_cache"
3726   echo
3727   echo "mostlyclean-local: mostlyclean-generic"
3728   echo "        @for dir in '' \$(MOSTLYCLEANDIRS); do \\"
3729   echo "          if test -n \"\$\$dir\" && test -d \$\$dir; then \\"
3730   echo "            echo \"rmdir \$\$dir\"; rmdir \$\$dir; \\"
3731   echo "          fi; \\"
3732   echo "        done; \\"
3733   echo "        :"
3734   rm -f "$tmp"/main_snippets "$tmp"/longrunning_snippets
3735 }
3736
3737 # func_emit_initmacro_start macro_prefix
3738 # emits the first few statements of the gl_INIT macro to standard output.
3739 # - macro_prefix    prefix of gl_EARLY, gl_INIT macros to use
3740 func_emit_initmacro_start ()
3741 {
3742   macro_prefix_arg="$1"
3743   # Overriding AC_LIBOBJ and AC_REPLACE_FUNCS has the effect of storing
3744   # platform-dependent object files in ${macro_prefix_arg}_LIBOBJS instead of
3745   # LIBOBJS.  The purpose is to allow several gnulib instantiations under
3746   # a single configure.ac file.  (AC_CONFIG_LIBOBJ_DIR does not allow this
3747   # flexibility.)
3748   # Furthermore it avoids an automake error like this when a Makefile.am
3749   # that uses pieces of gnulib also uses $(LIBOBJ):
3750   #   automatically discovered file `error.c' should not be explicitly mentioned
3751   echo "  m4_pushdef([AC_LIBOBJ], m4_defn([${macro_prefix_arg}_LIBOBJ]))"
3752   echo "  m4_pushdef([AC_REPLACE_FUNCS], m4_defn([${macro_prefix_arg}_REPLACE_FUNCS]))"
3753   # Overriding AC_LIBSOURCES has the same purpose of avoiding the automake
3754   # error when a Makefile.am that uses pieces of gnulib also uses $(LIBOBJ):
3755   #   automatically discovered file `error.c' should not be explicitly mentioned
3756   # We let automake know about the files to be distributed through the
3757   # EXTRA_lib_SOURCES variable.
3758   echo "  m4_pushdef([AC_LIBSOURCES], m4_defn([${macro_prefix_arg}_LIBSOURCES]))"
3759   # Create data variables for checking the presence of files that are mentioned
3760   # as AC_LIBSOURCES arguments. These are m4 variables, not shell variables,
3761   # because we want the check to happen when the configure file is created,
3762   # not when it is run. ${macro_prefix_arg}_LIBSOURCES_LIST is the list of
3763   # files to check for. ${macro_prefix_arg}_LIBSOURCES_DIR is the subdirectory
3764   # in which to expect them.
3765   echo "  m4_pushdef([${macro_prefix_arg}_LIBSOURCES_LIST], [])"
3766   echo "  m4_pushdef([${macro_prefix_arg}_LIBSOURCES_DIR], [])"
3767   echo "  gl_COMMON"
3768 }
3769
3770 # func_emit_initmacro_end macro_prefix
3771 # emits the last few statements of the gl_INIT macro to standard output.
3772 # - macro_prefix    prefix of gl_EARLY, gl_INIT macros to use
3773 func_emit_initmacro_end ()
3774 {
3775   macro_prefix_arg="$1"
3776   # Check the presence of files that are mentioned as AC_LIBSOURCES arguments.
3777   # The check is performed only when autoconf is run from the directory where
3778   # the configure.ac resides; if it is run from a different directory, the
3779   # check is skipped.
3780   echo "  m4_ifval(${macro_prefix_arg}_LIBSOURCES_LIST, ["
3781   echo "    m4_syscmd([test ! -d ]m4_defn([${macro_prefix_arg}_LIBSOURCES_DIR])[ ||"
3782   echo "      for gl_file in ]${macro_prefix_arg}_LIBSOURCES_LIST[ ; do"
3783   echo "        if test ! -r ]m4_defn([${macro_prefix_arg}_LIBSOURCES_DIR])[/\$gl_file ; then"
3784   echo "          echo \"missing file ]m4_defn([${macro_prefix_arg}_LIBSOURCES_DIR])[/\$gl_file\" >&2"
3785   echo "          exit 1"
3786   echo "        fi"
3787   echo "      done])dnl"
3788   echo "      m4_if(m4_sysval, [0], [],"
3789   echo "        [AC_FATAL([expected source file, required through AC_LIBSOURCES, not found])])"
3790   echo "  ])"
3791   echo "  m4_popdef([${macro_prefix_arg}_LIBSOURCES_DIR])"
3792   echo "  m4_popdef([${macro_prefix_arg}_LIBSOURCES_LIST])"
3793   echo "  m4_popdef([AC_LIBSOURCES])"
3794   echo "  m4_popdef([AC_REPLACE_FUNCS])"
3795   echo "  m4_popdef([AC_LIBOBJ])"
3796   echo "  AC_CONFIG_COMMANDS_PRE(["
3797   echo "    ${macro_prefix_arg}_libobjs="
3798   echo "    ${macro_prefix_arg}_ltlibobjs="
3799   echo "    if test -n \"\$${macro_prefix_arg}_LIBOBJS\"; then"
3800   echo "      # Remove the extension."
3801   echo "      sed_drop_objext='s/\\.o\$//;s/\\.obj\$//'"
3802   echo "      for i in \`for i in \$${macro_prefix_arg}_LIBOBJS; do echo \"\$i\"; done | sed -e \"\$sed_drop_objext\" | sort | uniq\`; do"
3803   echo "        ${macro_prefix_arg}_libobjs=\"\$${macro_prefix_arg}_libobjs \$i.\$ac_objext\""
3804   echo "        ${macro_prefix_arg}_ltlibobjs=\"\$${macro_prefix_arg}_ltlibobjs \$i.lo\""
3805   echo "      done"
3806   echo "    fi"
3807   echo "    AC_SUBST([${macro_prefix_arg}_LIBOBJS], [\$${macro_prefix_arg}_libobjs])"
3808   echo "    AC_SUBST([${macro_prefix_arg}_LTLIBOBJS], [\$${macro_prefix_arg}_ltlibobjs])"
3809   echo "  ])"
3810 }
3811
3812 # func_emit_initmacro_done macro_prefix sourcebase
3813 # emits a few statements after the gl_INIT macro to standard output.
3814 # - macro_prefix    prefix of gl_EARLY, gl_INIT macros to use
3815 # - sourcebase      directory relative to destdir where to place source code
3816 func_emit_initmacro_done ()
3817 {
3818   macro_prefix_arg="$1"
3819   sourcebase_arg="$2"
3820   echo
3821   echo "# Like AC_LIBOBJ, except that the module name goes"
3822   echo "# into ${macro_prefix_arg}_LIBOBJS instead of into LIBOBJS."
3823   echo "AC_DEFUN([${macro_prefix_arg}_LIBOBJ], ["
3824   echo "  AS_LITERAL_IF([\$1], [${macro_prefix_arg}_LIBSOURCES([\$1.c])])dnl"
3825   echo "  ${macro_prefix_arg}_LIBOBJS=\"\$${macro_prefix_arg}_LIBOBJS \$1.\$ac_objext\""
3826   echo "])"
3827   echo
3828   echo "# Like AC_REPLACE_FUNCS, except that the module name goes"
3829   echo "# into ${macro_prefix_arg}_LIBOBJS instead of into LIBOBJS."
3830   echo "AC_DEFUN([${macro_prefix_arg}_REPLACE_FUNCS], ["
3831   echo "  m4_foreach_w([gl_NAME], [\$1], [AC_LIBSOURCES(gl_NAME[.c])])dnl"
3832   echo "  AC_CHECK_FUNCS([\$1], , [${macro_prefix_arg}_LIBOBJ(\$ac_func)])"
3833   echo "])"
3834   echo
3835   echo "# Like AC_LIBSOURCES, except the directory where the source file is"
3836   echo "# expected is derived from the gnulib-tool parameterization,"
3837   echo "# and alloca is special cased (for the alloca-opt module)."
3838   echo "# We could also entirely rely on EXTRA_lib..._SOURCES."
3839   echo "AC_DEFUN([${macro_prefix_arg}_LIBSOURCES], ["
3840   echo "  m4_foreach([_gl_NAME], [\$1], ["
3841   echo "    m4_if(_gl_NAME, [alloca.c], [], ["
3842   echo "      m4_define([${macro_prefix_arg}_LIBSOURCES_DIR], [$sourcebase_arg])"
3843   echo "      m4_append([${macro_prefix_arg}_LIBSOURCES_LIST], _gl_NAME, [ ])"
3844   echo "    ])"
3845   echo "  ])"
3846   echo "])"
3847 }
3848
3849 # func_emit_autoconf_snippet indentation
3850 # emits the autoconf snippet of a module.
3851 # Input:
3852 # - local_gnulib_dir  from --local-dir
3853 # - modcache          true or false, from --cache-modules/--no-cache-modules
3854 # - sed_replace_build_aux  sed expression that replaces reference to build-aux
3855 # - module            the module name
3856 # - toplevel          true or false. 'false' means a subordinate use of
3857 #                     gnulib-tool.
3858 # - disable_libtool   true or false. It tells whether to disable libtool
3859 #                     handling even if it has been specified through the
3860 #                     command line options.
3861 # - disable_gettext   true or false. It tells whether to disable AM_GNU_GETTEXT
3862 #                     invocations.
3863 # - indentation       spaces to prepend on each line
3864 func_emit_autoconf_snippet ()
3865 {
3866   if { case $module in
3867          gnumakefile | maintainer-makefile)
3868            # These modules are meant to be used only in the top-level directory.
3869            $toplevel ;;
3870          *)
3871            true ;;
3872        esac
3873      }; then
3874     func_get_autoconf_snippet "$module" \
3875       | sed -e '/^$/d;' -e "s/^/$indentation/" \
3876             -e "$sed_replace_build_aux" \
3877       | { if $disable_libtool; then
3878             sed -e 's/\$gl_cond_libtool/false/g' \
3879                 -e 's/gl_libdeps/gltests_libdeps/g' \
3880                 -e 's/gl_ltlibdeps/gltests_ltlibdeps/g'
3881           else
3882             cat
3883           fi
3884         } \
3885       | { if $disable_gettext; then
3886             sed -e 's/AM_GNU_GETTEXT(\[external\])/dnl you must add AM_GNU_GETTEXT([external]) or similar to configure.ac./'
3887           else
3888             cat
3889           fi
3890         }
3891     if test "$module" = 'alloca' && test "$libtool" = true && ! $disable_libtool; then
3892       echo 'changequote(,)dnl'
3893       echo 'LTALLOCA=`echo "$ALLOCA" | sed -e '"'"'s/\.[^.]* /.lo /g;s/\.[^.]*$/.lo/'"'"'`'
3894       echo 'changequote([, ])dnl'
3895       echo 'AC_SUBST([LTALLOCA])'
3896     fi
3897   fi
3898 }
3899
3900 # func_emit_autoconf_snippets modules verifier toplevel disable_libtool disable_gettext
3901 # collects and emit the autoconf snippets of a set of modules.
3902 # Input:
3903 # - local_gnulib_dir  from --local-dir
3904 # - modcache          true or false, from --cache-modules/--no-cache-modules
3905 # - sed_replace_build_aux  sed expression that replaces reference to build-aux
3906 # - modules           the list of modules.
3907 # - verifier          one of func_verify_module, func_verify_nontests_module,
3908 #                     func_verify_tests_module. It selects the subset of
3909 #                     $modules to consider.
3910 # - toplevel          true or false. 'false' means a subordinate use of
3911 #                     gnulib-tool.
3912 # - disable_libtool   true or false. It tells whether to disable libtool
3913 #                     handling even if it has been specified through the
3914 #                     command line options.
3915 # - disable_gettext   true or false. It tells whether to disable AM_GNU_GETTEXT
3916 #                     invocations.
3917 func_emit_autoconf_snippets ()
3918 {
3919   verifier="$2"
3920   toplevel="$3"
3921   disable_libtool="$4"
3922   disable_gettext="$5"
3923   if test "$cond_dependencies" = true; then
3924     for m in $modules; do echo $m; done | LC_ALL=C sort -u > "$tmp"/modules
3925     # Emit the autoconf code for the unconditional modules.
3926     for module in $1; do
3927       eval $verifier
3928       if test -n "$module"; then
3929         if func_cond_module_p "$module"; then
3930           :
3931         else
3932           func_emit_autoconf_snippet "  "
3933         fi
3934       fi
3935     done
3936     # Initialize the shell variables indicating that the modules are enabled.
3937     for module in $1; do
3938       eval $verifier
3939       if test -n "$module"; then
3940         if func_cond_module_p "$module"; then
3941           func_module_shellvar_name "$module"
3942           echo "  $shellvar=false"
3943         fi
3944       fi
3945     done
3946     # Emit the autoconf code for the conditional modules, each in a separate
3947     # function. This makes it possible to support cycles among conditional
3948     # modules.
3949     for module in $1; do
3950       eval $verifier
3951       if test -n "$module"; then
3952         if func_cond_module_p "$module"; then
3953           func_module_shellfunc_name "$module"
3954           func_module_shellvar_name "$module"
3955           echo "  $shellfunc ()"
3956           echo '  {'
3957           echo "    if ! \$$shellvar; then"
3958           func_emit_autoconf_snippet "      "
3959           echo "      $shellvar=true"
3960           deps=`func_get_dependencies $module | sed -e "$sed_dependencies_without_conditions"`
3961           # Intersect $deps with the modules list $1.
3962           deps=`for m in $deps; do echo $m; done | LC_ALL=C sort -u | LC_ALL=C join - "$tmp"/modules`
3963           for dep in $deps; do
3964             if func_cond_module_p "$dep"; then
3965               func_module_shellfunc_name "$dep"
3966               func_cond_module_condition "$module" "$dep"
3967               if test "$condition" != true; then
3968                 echo "      if $condition; then"
3969                 echo "        $shellfunc"
3970                 echo '      fi'
3971               else
3972                 echo "      $shellfunc"
3973               fi
3974             else
3975               # The autoconf code for $dep has already been emitted above and
3976               # therefore is already executed when this function is run.
3977               :
3978             fi
3979           done
3980           echo '    fi'
3981           echo '  }'
3982         fi
3983       fi
3984     done
3985     # Emit the dependencies from the unconditional to the conditional modules.
3986     for module in $1; do
3987       eval $verifier
3988       if test -n "$module"; then
3989         if func_cond_module_p "$module"; then
3990           :
3991         else
3992           deps=`func_get_dependencies $module | sed -e "$sed_dependencies_without_conditions"`
3993           # Intersect $deps with the modules list $1.
3994           deps=`for m in $deps; do echo $m; done | LC_ALL=C sort -u | LC_ALL=C join - "$tmp"/modules`
3995           for dep in $deps; do
3996             if func_cond_module_p "$dep"; then
3997               func_module_shellfunc_name "$dep"
3998               func_cond_module_condition "$module" "$dep"
3999               if test "$condition" != true; then
4000                 echo "  if $condition; then"
4001                 echo "    $shellfunc"
4002                 echo '  fi'
4003               else
4004                 echo "  $shellfunc"
4005               fi
4006             else
4007               # The autoconf code for $dep has already been emitted above and
4008               # therefore is already executed when this code is run.
4009               :
4010             fi
4011           done
4012         fi
4013       fi
4014     done
4015     # Define the Automake conditionals.
4016     echo "  m4_pattern_allow([^${macro_prefix}_GNULIB_ENABLED_])"
4017     for module in $1; do
4018       eval $verifier
4019       if test -n "$module"; then
4020         if func_cond_module_p "$module"; then
4021           func_module_conditional_name "$module"
4022           func_module_shellvar_name "$module"
4023           echo "  AM_CONDITIONAL([$conditional], [\$$shellvar])"
4024         fi
4025       fi
4026     done
4027   else
4028     # Ignore the conditions, and enable all modules unconditionally.
4029     for module in $1; do
4030       eval $verifier
4031       if test -n "$module"; then
4032         func_emit_autoconf_snippet "  "
4033       fi
4034     done
4035   fi
4036 }
4037
4038 # func_import modules
4039 # Uses also the variables
4040 # - mode            import or add-import or remove-import or update
4041 # - destdir         target directory
4042 # - local_gnulib_dir  from --local-dir
4043 # - modcache        true or false, from --cache-modules/--no-cache-modules
4044 # - verbose         integer, default 0, inc/decremented by --verbose/--quiet
4045 # - libname         library name
4046 # - supplied_libname  true if --lib was given, blank otherwise
4047 # - sourcebase      directory relative to destdir where to place source code
4048 # - m4base          directory relative to destdir where to place *.m4 macros
4049 # - pobase          directory relative to destdir where to place *.po files
4050 # - docbase         directory relative to destdir where to place doc files
4051 # - testsbase       directory relative to destdir where to place unit test code
4052 # - auxdir          directory relative to destdir where to place build aux files
4053 # - inctests        true if --with-tests was given, blank otherwise
4054 # - incobsolete     true if --with-obsolete was given, blank otherwise
4055 # - inc_cxx_tests   true if --with-c++-tests was given, blank otherwise
4056 # - inc_longrunning_tests  true if --with-longrunning-tests was given, blank
4057 #                          otherwise
4058 # - inc_privileged_tests  true if --with-privileged-tests was given, blank
4059 #                         otherwise
4060 # - inc_unportable_tests  true if --with-unportable-tests was given, blank
4061 #                         otherwise
4062 # - inc_all_tests   true if --with-all-tests was given, blank otherwise
4063 # - avoidlist       list of modules to avoid, from --avoid
4064 # - cond_dependencies  true if --conditional-dependencies was given, false if
4065 #                      --no-conditional-dependencies was given, blank otherwise
4066 # - lgpl            yes or a number if library's license shall be LGPL,
4067 #                   blank otherwise
4068 # - makefile_name   from --makefile-name
4069 # - libtool         true if --libtool was given, false if --no-libtool was
4070 #                   given, blank otherwise
4071 # - guessed_libtool true if the configure.ac file uses libtool, false otherwise
4072 # - macro_prefix    prefix of gl_EARLY, gl_INIT macros to use
4073 # - po_domain       prefix of i18n domain to use (without -gnulib suffix)
4074 # - witness_c_macro  from --witness-c-macro
4075 # - vc_files        true if --vc-files was given, false if --no-vc-files was
4076 #                   given, blank otherwise
4077 # - autoconf_minversion  minimum supported autoconf version
4078 # - doit            : if actions shall be executed, false if only to be printed
4079 # - symbolic        true if files should be symlinked, copied otherwise
4080 # - lsymbolic       true if files from local_gnulib_dir should be symlinked,
4081 #                   copied otherwise
4082 # - do_copyrights   true if copyright notices in files should be replaced,
4083 #                   blank otherwise
4084 func_import ()
4085 {
4086   # Get the cached settings.
4087   # In 'import' mode, we read them only for the purpose of knowing the old
4088   # installed file list, and don't use them as defaults.
4089   cached_local_gnulib_dir=
4090   cached_specified_modules=
4091   cached_incobsolete=
4092   cached_inc_cxx_tests=
4093   cached_inc_longrunning_tests=
4094   cached_inc_privileged_tests=
4095   cached_inc_unportable_tests=
4096   cached_inc_all_tests=
4097   cached_avoidlist=
4098   cached_sourcebase=
4099   cached_m4base=
4100   cached_pobase=
4101   cached_docbase=
4102   cached_testsbase=
4103   cached_inctests=
4104   cached_libname=
4105   cached_lgpl=
4106   cached_makefile_name=
4107   cached_cond_dependencies=
4108   cached_libtool=
4109   cached_macro_prefix=
4110   cached_po_domain=
4111   cached_witness_c_macro=
4112   cached_vc_files=
4113   cached_files=
4114   if test -f "$destdir"/$m4base/gnulib-cache.m4; then
4115     cached_libtool=false
4116     my_sed_traces='
4117       s,#.*$,,
4118       s,^dnl .*$,,
4119       s, dnl .*$,,
4120       /gl_LOCAL_DIR(/ {
4121         s,^.*gl_LOCAL_DIR([[ ]*\([^]"$`\\)]*\).*$,cached_local_gnulib_dir="\1",p
4122       }
4123       /gl_MODULES(/ {
4124         ta
4125         :a
4126           s/)/)/
4127           tb
4128           N
4129           ba
4130         :b
4131         s,^.*gl_MODULES([[ ]*\([^]"$`\\)]*\).*$,cached_specified_modules="\1",p
4132       }
4133       /gl_WITH_OBSOLETE/ {
4134         s,^.*$,cached_incobsolete=true,p
4135       }
4136       /gl_WITH_CXX_TESTS/ {
4137         s,^.*$,cached_inc_cxx_tests=true,p
4138       }
4139       /gl_WITH_LONGRUNNING_TESTS/ {
4140         s,^.*$,cached_inc_longrunning_tests=true,p
4141       }
4142       /gl_WITH_PRIVILEGED_TESTS/ {
4143         s,^.*$,cached_inc_privileged_tests=true,p
4144       }
4145       /gl_WITH_UNPORTABLE_TESTS/ {
4146         s,^.*$,cached_inc_unportable_tests=true,p
4147       }
4148       /gl_WITH_ALL_TESTS/ {
4149         s,^.*$,cached_inc_all_tests=true,p
4150       }
4151       /gl_AVOID(/ {
4152         s,^.*gl_AVOID([[ ]*\([^]"$`\\)]*\).*$,cached_avoidlist="\1",p
4153       }
4154       /gl_SOURCE_BASE(/ {
4155         s,^.*gl_SOURCE_BASE([[ ]*\([^]"$`\\)]*\).*$,cached_sourcebase="\1",p
4156       }
4157       /gl_M4_BASE(/ {
4158         s,^.*gl_M4_BASE([[ ]*\([^]"$`\\)]*\).*$,cached_m4base="\1",p
4159       }
4160       /gl_PO_BASE(/ {
4161         s,^.*gl_PO_BASE([[ ]*\([^]"$`\\)]*\).*$,cached_pobase="\1",p
4162       }
4163       /gl_DOC_BASE(/ {
4164         s,^.*gl_DOC_BASE([[ ]*\([^]"$`\\)]*\).*$,cached_docbase="\1",p
4165       }
4166       /gl_TESTS_BASE(/ {
4167         s,^.*gl_TESTS_BASE([[ ]*\([^]"$`\\)]*\).*$,cached_testsbase="\1",p
4168       }
4169       /gl_WITH_TESTS/ {
4170         s,^.*$,cached_inctests=true,p
4171       }
4172       /gl_LIB(/ {
4173         s,^.*gl_LIB([[ ]*\([^]"$`\\)]*\).*$,cached_libname="\1",p
4174       }
4175       /gl_LGPL(/ {
4176         s,^.*gl_LGPL([[ ]*\([^]"$`\\)]*\).*$,cached_lgpl="\1",p
4177       }
4178       /gl_LGPL/ {
4179         s,^.*$,cached_lgpl=yes,p
4180       }
4181       /gl_MAKEFILE_NAME(/ {
4182         s,^.*gl_MAKEFILE_NAME([[ ]*\([^]"$`\\)]*\).*$,cached_makefile_name="\1",p
4183       }
4184       /gl_CONDITIONAL_DEPENDENCIES/ {
4185         s,^.*$,cached_cond_dependencies=true,p
4186       }
4187       /gl_LIBTOOL/ {
4188         s,^.*$,cached_libtool=true,p
4189       }
4190       /gl_MACRO_PREFIX(/ {
4191         s,^.*gl_MACRO_PREFIX([[ ]*\([^]"$`\\)]*\).*$,cached_macro_prefix="\1",p
4192       }
4193       /gl_PO_DOMAIN(/ {
4194         s,^.*gl_PO_DOMAIN([[ ]*\([^]"$`\\)]*\).*$,cached_po_domain="\1",p
4195       }
4196       /gl_WITNESS_C_MACRO(/ {
4197         s,^.*gl_WITNESS_C_MACRO([[ ]*\([^]"$`\\)]*\).*$,cached_witness_c_macro="\1",p
4198       }
4199       /gl_VC_FILES(/ {
4200         s,^.*gl_VC_FILES([[ ]*\([^]"$`\\)]*\).*$,cached_vc_files="\1",p
4201       }'
4202     eval `sed -n -e "$my_sed_traces" < "$destdir"/$m4base/gnulib-cache.m4`
4203     if test -f "$destdir"/$m4base/gnulib-comp.m4; then
4204       my_sed_traces='
4205         s,#.*$,,
4206         s,^dnl .*$,,
4207         s, dnl .*$,,
4208         /AC_DEFUN(\['"${cached_macro_prefix}"'_FILE_LIST\], \[/ {
4209           s,^.*$,cached_files=",p
4210           n
4211           ta
4212           :a
4213           s,^\]).*$,",
4214           tb
4215           s,["$`\\],,g
4216           p
4217           n
4218           ba
4219           :b
4220           p
4221         }'
4222       eval `sed -n -e "$my_sed_traces" < "$destdir"/$m4base/gnulib-comp.m4`
4223     fi
4224   fi
4225
4226   if test "$mode" = import; then
4227     # In 'import' mode, the new set of specified modules overrides the cached
4228     # set of modules. Ignore the cached settings.
4229     specified_modules="$1"
4230   else
4231     # Merge the cached settings with the specified ones.
4232     # The m4base must be the same as expected from the pathname.
4233     if test -n "$cached_m4base" && test "$cached_m4base" != "$m4base"; then
4234       func_fatal_error "$m4base/gnulib-cache.m4 is expected to contain gl_M4_BASE([$m4base])"
4235     fi
4236     # The local_gnulib_dir defaults to the cached one. Recall that the cached one
4237     # is relative to $destdir, whereas the one we use is relative to . or absolute.
4238     if test -z "$local_gnulib_dir"; then
4239       if test -n "$cached_local_gnulib_dir"; then
4240         case "$destdir" in
4241           /*)
4242             local_gnulib_dir="$destdir/$cached_local_gnulib_dir" ;;
4243           *)
4244             case "$cached_local_gnulib_dir" in
4245               /*)
4246                 local_gnulib_dir="$destdir/$cached_local_gnulib_dir" ;;
4247               *)
4248                 func_relconcat "$destdir" "$cached_local_gnulib_dir"
4249                 local_gnulib_dir="$relconcat" ;;
4250             esac ;;
4251         esac
4252       fi
4253     fi
4254     case $mode in
4255       add-import)
4256         # Append the cached and the specified module names. So that
4257         # "gnulib-tool --add-import foo" means to add the module foo.
4258         specified_modules="$cached_specified_modules $1"
4259         ;;
4260       remove-import)
4261         # Take the cached module names, minus the specified module names.
4262         specified_modules=
4263         if $have_associative; then
4264           # Use an associative array, for O(N) worst-case run time.
4265           declare -A to_remove
4266           for m in $1; do
4267             eval 'to_remove[$m]=yes'
4268           done
4269           for module in $cached_specified_modules; do
4270             if eval 'test -z "${to_remove[$module]}"'; then
4271               func_append specified_modules "$module "
4272             fi
4273           done
4274         else
4275           # This loop has O(N²) worst-case run time.
4276           for module in $cached_specified_modules; do
4277             to_remove=
4278             for m in $1; do
4279               if test "$m" = "$module"; then
4280                 to_remove=yes
4281                 break
4282               fi
4283             done
4284             if test -z "$to_remove"; then
4285               func_append specified_modules "$module "
4286             fi
4287           done
4288         fi
4289         ;;
4290       update)
4291         # Take the cached module names. There are no specified module names.
4292         specified_modules="$cached_specified_modules"
4293         ;;
4294     esac
4295     # Included obsolete modules among the dependencies if specified either way.
4296     if test -z "$incobsolete"; then
4297       incobsolete="$cached_incobsolete"
4298     fi
4299     # Included special kinds of tests modules among the dependencies if specified
4300     # either way.
4301     if test -z "$inc_cxx_tests"; then
4302       inc_cxx_tests="$cached_inc_cxx_tests"
4303     fi
4304     if test -z "$inc_longrunning_tests"; then
4305       inc_longrunning_tests="$cached_inc_longrunning_tests"
4306     fi
4307     if test -z "$inc_privileged_tests"; then
4308       inc_privileged_tests="$cached_inc_privileged_tests"
4309     fi
4310     if test -z "$inc_unportable_tests"; then
4311       inc_unportable_tests="$cached_inc_unportable_tests"
4312     fi
4313     if test -z "$inc_all_tests"; then
4314       inc_all_tests="$cached_inc_all_tests"
4315     fi
4316     # Append the cached and the specified avoidlist. This is probably better
4317     # than dropping the cached one when --avoid is specified at least once.
4318     avoidlist=`for m in $cached_avoidlist $avoidlist; do echo $m; done | LC_ALL=C sort -u`
4319     avoidlist=`echo $avoidlist`
4320
4321     # The sourcebase defaults to the cached one.
4322     if test -z "$sourcebase"; then
4323       sourcebase="$cached_sourcebase"
4324       if test -z "$sourcebase"; then
4325         func_fatal_error "missing --source-base option"
4326       fi
4327     fi
4328     # The pobase defaults to the cached one.
4329     if test -z "$pobase"; then
4330       pobase="$cached_pobase"
4331     fi
4332     # The docbase defaults to the cached one.
4333     if test -z "$docbase"; then
4334       docbase="$cached_docbase"
4335       if test -z "$docbase"; then
4336         func_fatal_error "missing --doc-base option. --doc-base has been introduced on 2006-07-11; if your last invocation of 'gnulib-tool --import' is before that date, you need to run 'gnulib-tool --import' once, with a --doc-base option."
4337       fi
4338     fi
4339     # The testsbase defaults to the cached one.
4340     if test -z "$testsbase"; then
4341       testsbase="$cached_testsbase"
4342       if test -z "$testsbase"; then
4343         func_fatal_error "missing --tests-base option"
4344       fi
4345     fi
4346     # Require the tests if specified either way.
4347     if test -z "$inctests"; then
4348       inctests="$cached_inctests"
4349     fi
4350     # The libname defaults to the cached one.
4351     if test -z "$supplied_libname"; then
4352       libname="$cached_libname"
4353       if test -z "$libname"; then
4354         func_fatal_error "missing --lib option"
4355       fi
4356     fi
4357     # Require LGPL if specified either way.
4358     if test -z "$lgpl"; then
4359       lgpl="$cached_lgpl"
4360     fi
4361     # The makefile_name defaults to the cached one.
4362     if test -z "$makefile_name"; then
4363       makefile_name="$cached_makefile_name"
4364     fi
4365     # Use conditional dependencies if specified either way.
4366     if test -z "$cond_dependencies"; then
4367       cond_dependencies="$cached_cond_dependencies"
4368     fi
4369     # Use libtool if specified either way, or if guessed.
4370     if test -z "$libtool"; then
4371       if test -n "$cached_m4base"; then
4372         libtool="$cached_libtool"
4373       else
4374         libtool="$guessed_libtool"
4375       fi
4376     fi
4377     # The macro_prefix defaults to the cached one.
4378     if test -z "$macro_prefix"; then
4379       macro_prefix="$cached_macro_prefix"
4380       if test -z "$macro_prefix"; then
4381         func_fatal_error "missing --macro-prefix option"
4382       fi
4383     fi
4384     # The po_domain defaults to the cached one.
4385     if test -z "$po_domain"; then
4386       po_domain="$cached_po_domain"
4387     fi
4388     # The witness_c_macro defaults to the cached one.
4389     if test -z "$witness_c_macro"; then
4390       witness_c_macro="$cached_witness_c_macro"
4391     fi
4392     # The vc_files defaults to the cached one.
4393     if test -z "$vc_files"; then
4394       vc_files="$cached_vc_files"
4395     fi
4396     # Ensure constraints.
4397     if test "$cond_dependencies" = true && test -n "$inctests"; then
4398       echo "gnulib-tool: option --conditional-dependencies is not supported with --with-tests" 1>&2
4399       func_exit 1
4400     fi
4401   fi
4402   # --without-*-tests options are not supported here.
4403   excl_cxx_tests=
4404   excl_longrunning_tests=
4405   excl_privileged_tests=
4406   excl_unportable_tests=
4407
4408   # Canonicalize the list of specified modules.
4409   specified_modules=`for m in $specified_modules; do echo $m; done | LC_ALL=C sort -u`
4410
4411   # Include all kinds of tests modules if --with-all-tests was specified.
4412   inc_all_direct_tests="$inc_all_tests"
4413   inc_all_indirect_tests="$inc_all_tests"
4414
4415   # Determine final module list.
4416   modules="$specified_modules"
4417   func_modules_transitive_closure
4418   if test $verbose -ge 0; then
4419     func_show_module_list
4420   fi
4421   final_modules="$modules"
4422
4423   # Determine main module list and tests-related module list separately.
4424   func_modules_transitive_closure_separately
4425
4426   # Determine whether a $testsbase/libtests.a is needed.
4427   func_determine_use_libtests
4428
4429   # Add the dummy module to the main module list or to the tests-related module
4430   # list if needed.
4431   func_modules_add_dummy_separately
4432
4433   # If --lgpl, verify that the licenses of modules are compatible.
4434   if test -n "$lgpl"; then
4435     license_incompatibilities=
4436     for module in $main_modules; do
4437       license=`func_get_license $module`
4438       case $license in
4439         'GPLed build tool') ;;
4440         'public domain' | 'unlimited' | 'unmodifiable license text') ;;
4441         *)
4442           case "$lgpl" in
4443             yes | 3)
4444               case $license in
4445                 LGPL | LGPLv2+ | LGPLv3+) ;;
4446                 *) func_append license_incompatibilities "$module $license$nl" ;;
4447               esac
4448               ;;
4449             2)
4450               case $license in
4451                 LGPLv2+) ;;
4452                 *) func_append license_incompatibilities "$module $license$nl" ;;
4453               esac
4454               ;;
4455             *) func_fatal_error "invalid value lgpl=$lgpl" ;;
4456           esac
4457           ;;
4458       esac
4459     done
4460     if test -n "$license_incompatibilities"; then
4461       # Format the license incompatibilities as a table.
4462       sed_expand_column1_width50_indent17='s,^\([^ ]*\) ,\1                                                   ,
4463 s,^\(.................................................[^ ]*\) *,                 \1 ,'
4464       license_incompatibilities=`echo "$license_incompatibilities" | sed -e "$sed_expand_column1_width50_indent17"`
4465       func_fatal_error "incompatible license on modules:$nl$license_incompatibilities"
4466     fi
4467   fi
4468
4469   # Show banner notice of every module.
4470   modules="$main_modules"
4471   func_modules_notice
4472
4473   # Determine script to apply to imported library files.
4474   sed_transform_lib_file=
4475   for module in $main_modules; do
4476     if test $module = config-h; then
4477       # Assume config.h exists, and that -DHAVE_CONFIG_H is omitted.
4478       sed_transform_lib_file=$sed_transform_lib_file'
4479         s/^#ifdef[       ]*HAVE_CONFIG_H[        ]*$/#if 1/
4480       '
4481       break
4482     fi
4483   done
4484   sed_transform_main_lib_file="$sed_transform_lib_file"
4485   if test -n "$do_copyrights"; then
4486     if test -n "$lgpl"; then
4487       # Update license.
4488       case "$lgpl" in
4489         yes | 3)
4490           sed_transform_main_lib_file=$sed_transform_main_lib_file'
4491             s/GNU General/GNU Lesser General/g
4492             s/General Public License/Lesser General Public License/g
4493             s/Lesser Lesser General Public License/Lesser General Public License/g
4494           '
4495           ;;
4496         2)
4497           sed_transform_main_lib_file=$sed_transform_main_lib_file'
4498             s/GNU General/GNU Lesser General/g
4499             s/General Public License/Lesser General Public License/g
4500             s/Lesser Lesser General Public License/Lesser General Public License/g
4501
4502             s/version [23]\([ ,]\)/version 2.1\1/g
4503           '
4504           ;;
4505         *) func_fatal_error "invalid value lgpl=$lgpl" ;;
4506       esac
4507     else
4508       # Update license.
4509       sed_transform_main_lib_file=$sed_transform_main_lib_file'
4510         s/GNU Lesser General/GNU General/g
4511         s/Lesser General Public License/General Public License/g
4512
4513         s/GNU Library General/GNU General/g
4514         s/Library General Public License/General Public License/g
4515
4516         s/version 2\(.1\)\{0,1\}\([ ,]\)/version 3\2/g
4517       '
4518     fi
4519   fi
4520
4521   # Determine script to apply to auxiliary files that go into $auxdir/.
4522   sed_transform_build_aux_file=
4523   if test -n "$do_copyrights"; then
4524     # Update license.
4525     sed_transform_build_aux_file=$sed_transform_build_aux_file'
4526       s/GNU Lesser General/GNU General/g
4527       s/Lesser General Public License/General Public License/g
4528
4529       s/GNU Library General/GNU General/g
4530       s/Library General Public License/General Public License/g
4531
4532       s/version 2\(.1\)\{0,1\}\([ ,]\)/version 3\2/g
4533     '
4534   fi
4535
4536   # Determine script to apply to library files that go into $testsbase/.
4537   sed_transform_testsrelated_lib_file="$sed_transform_lib_file"
4538   if test -n "$do_copyrights"; then
4539     # Update license.
4540     sed_transform_testsrelated_lib_file=$sed_transform_testsrelated_lib_file'
4541       s/GNU Lesser General/GNU General/g
4542       s/Lesser General Public License/General Public License/g
4543
4544       s/GNU Library General/GNU General/g
4545       s/Library General Public License/General Public License/g
4546
4547       s/version 2\(.1\)\{0,1\}\([ ,]\)/version 3\2/g
4548     '
4549   fi
4550
4551   # Determine the final file lists.
4552   func_modules_to_filelist_separately
4553
4554   test -n "$files" \
4555     || func_fatal_error "refusing to do nothing"
4556
4557   # Add m4/gnulib-tool.m4 to the file list. It is not part of any module.
4558   new_files="$files m4/gnulib-tool.m4"
4559   old_files="$cached_files"
4560   if test -f "$destdir"/$m4base/gnulib-tool.m4; then
4561     func_append old_files " m4/gnulib-tool.m4"
4562   fi
4563
4564   rewritten='%REWRITTEN%'
4565   sed_rewrite_old_files="\
4566     s,^build-aux/,$rewritten$auxdir/,
4567     s,^doc/,$rewritten$cached_docbase/,
4568     s,^lib/,$rewritten$cached_sourcebase/,
4569     s,^m4/,$rewritten$cached_m4base/,
4570     s,^tests/,$rewritten$cached_testsbase/,
4571     s,^tests=lib/,$rewritten$cached_testsbase/,
4572     s,^top/,$rewritten,
4573     s,^$rewritten,,"
4574   sed_rewrite_new_files="\
4575     s,^build-aux/,$rewritten$auxdir/,
4576     s,^doc/,$rewritten$docbase/,
4577     s,^lib/,$rewritten$sourcebase/,
4578     s,^m4/,$rewritten$m4base/,
4579     s,^tests/,$rewritten$testsbase/,
4580     s,^tests=lib/,$rewritten$testsbase/,
4581     s,^top/,$rewritten,
4582     s,^$rewritten,,"
4583
4584   # Create directories.
4585   { echo "$sourcebase"
4586     echo "$m4base"
4587     if test -n "$pobase"; then
4588       echo "$pobase"
4589     fi
4590     docfiles=`echo "$files" | sed -n -e 's,^doc/,,p'`
4591     if test -n "$docfiles"; then
4592       echo "$docbase"
4593     fi
4594     if test -n "$inctests"; then
4595       echo "$testsbase"
4596     fi
4597     echo "$auxdir"
4598     for f in $files; do echo $f; done \
4599       | sed -e "$sed_rewrite_new_files" \
4600       | sed -n -e 's,^\(.*\)/[^/]*,\1,p' \
4601       | LC_ALL=C sort -u
4602   } > "$tmp"/dirs
4603   { # Rearrange file descriptors. Needed because "while ... done < ..."
4604     # constructs are executed in a subshell e.g. by Solaris 10 /bin/sh.
4605     exec 5<&0 < "$tmp"/dirs
4606     while read d; do
4607       if test ! -d "$destdir/$d"; then
4608         if $doit; then
4609           echo "Creating directory $destdir/$d"
4610           mkdir -p "$destdir/$d" || func_fatal_error "failed"
4611         else
4612           echo "Create directory $destdir/$d"
4613         fi
4614       fi
4615     done
4616     exec 0<&5 5<&-
4617   }
4618
4619   # Copy files or make symbolic links. Remove obsolete files.
4620   added_files=''
4621   removed_files=''
4622   delimiter='   '
4623   # Construct a table with 2 columns: rewritten-file-name original-file-name,
4624   # representing the files according to the last gnulib-tool invocation.
4625   for f in $old_files; do echo $f; done \
4626     | sed -e "s,^.*\$,&$delimiter&," -e "$sed_rewrite_old_files" \
4627     | LC_ALL=C sort \
4628     > "$tmp"/old-files
4629   # Construct a table with 2 columns: rewritten-file-name original-file-name,
4630   # representing the files after this gnulib-tool invocation.
4631   for f in $new_files; do echo $f; done \
4632     | sed -e "s,^.*\$,&$delimiter&," -e "$sed_rewrite_new_files" \
4633     | LC_ALL=C sort \
4634     > "$tmp"/new-files
4635   # First the files that are in old-files, but not in new-files:
4636   sed_take_first_column='s,'"$delimiter"'.*,,'
4637   for g in `LC_ALL=C join -t"$delimiter" -v1 "$tmp"/old-files "$tmp"/new-files | sed -e "$sed_take_first_column"`; do
4638     # Remove the file. Do nothing if the user already removed it.
4639     if test -f "$destdir/$g" || test -h "$destdir/$g"; then
4640       if $doit; then
4641         echo "Removing file $g (backup in ${g}~)"
4642         mv -f "$destdir/$g" "$destdir/${g}~" || func_fatal_error "failed"
4643       else
4644         echo "Remove file $g (backup in ${g}~)"
4645       fi
4646       func_append removed_files "$g$nl"
4647     fi
4648   done
4649   # func_add_or_update handles a file that ought to be present afterwards.
4650   # Uses parameters
4651   # - f             the original file name
4652   # - g             the rewritten file name
4653   # - already_present  nonempty if the file should already exist, empty
4654   #                    otherwise
4655   func_add_or_update ()
4656   {
4657     of="$f"
4658     case "$f" in
4659       tests=lib/*) f=`echo "$f" | sed -e 's,^tests=lib/,lib/,'` ;;
4660     esac
4661     func_dest_tmpfilename "$g"
4662     func_lookup_file "$f"
4663     cp "$lookedup_file" "$tmpfile" || func_fatal_error "failed"
4664     if test -n "$sed_transform_main_lib_file"; then
4665       case "$of" in
4666         lib/*)
4667           sed -e "$sed_transform_main_lib_file" \
4668             < "$lookedup_file" > "$tmpfile" || func_fatal_error "failed"
4669           ;;
4670       esac
4671     fi
4672     if test -n "$sed_transform_build_aux_file"; then
4673       case "$of" in
4674         build-aux/*)
4675           sed -e "$sed_transform_build_aux_file" \
4676             < "$lookedup_file" > "$tmpfile" || func_fatal_error "failed"
4677           ;;
4678       esac
4679     fi
4680     if test -n "$sed_transform_testsrelated_lib_file"; then
4681       case "$of" in
4682         tests=lib/*)
4683           sed -e "$sed_transform_testsrelated_lib_file" \
4684             < "$lookedup_file" > "$tmpfile" || func_fatal_error "failed"
4685           ;;
4686       esac
4687     fi
4688     if test -f "$destdir/$g"; then
4689       # The file already exists.
4690       func_update_file
4691     else
4692       # Install the file.
4693       # Don't protest if the file should be there but isn't: it happens
4694       # frequently that developers don't put autogenerated files under version control.
4695       func_add_file
4696       func_append added_files "$g$nl"
4697     fi
4698     rm -f "$tmpfile"
4699   }
4700   # Then the files that are in new-files, but not in old-files:
4701   sed_take_last_column='s,^.*'"$delimiter"',,'
4702   already_present=
4703   LC_ALL=C join -t"$delimiter" -v2 "$tmp"/old-files "$tmp"/new-files \
4704     | sed -e "$sed_take_last_column" \
4705     | sed -e "s,^.*\$,&$delimiter&," -e "$sed_rewrite_new_files" > "$tmp"/added-files
4706   { # Rearrange file descriptors. Needed because "while ... done < ..."
4707     # constructs are executed in a subshell e.g. by Solaris 10 /bin/sh.
4708     exec 5<&0 < "$tmp"/added-files
4709     while read g f; do
4710       func_add_or_update
4711     done
4712     exec 0<&5 5<&-
4713   }
4714   # Then the files that are in new-files and in old-files:
4715   already_present=true
4716   LC_ALL=C join -t"$delimiter" "$tmp"/old-files "$tmp"/new-files \
4717     | sed -e "$sed_take_last_column" \
4718     | sed -e "s,^.*\$,&$delimiter&," -e "$sed_rewrite_new_files" > "$tmp"/kept-files
4719   { # Rearrange file descriptors. Needed because "while ... done < ..."
4720     # constructs are executed in a subshell e.g. by Solaris 10 /bin/sh.
4721     exec 5<&0 < "$tmp"/kept-files
4722     while read g f; do
4723       func_add_or_update
4724     done
4725     exec 0<&5 5<&-
4726   }
4727
4728   # Command-line invocation printed in a comment in generated gnulib-cache.m4.
4729   actioncmd="gnulib-tool --import"
4730   func_append actioncmd " --dir=$destdir"
4731   if test -n "$local_gnulib_dir"; then
4732     func_append actioncmd " --local-dir=$local_gnulib_dir"
4733   fi
4734   func_append actioncmd " --lib=$libname"
4735   func_append actioncmd " --source-base=$sourcebase"
4736   func_append actioncmd " --m4-base=$m4base"
4737   if test -n "$pobase"; then
4738     func_append actioncmd " --po-base=$pobase"
4739   fi
4740   func_append actioncmd " --doc-base=$docbase"
4741   func_append actioncmd " --tests-base=$testsbase"
4742   func_append actioncmd " --aux-dir=$auxdir"
4743   if test -n "$inctests"; then
4744     func_append actioncmd " --with-tests"
4745   fi
4746   if test -n "$incobsolete"; then
4747     func_append actioncmd " --with-obsolete"
4748   fi
4749   if test -n "$inc_cxx_tests"; then
4750     func_append actioncmd " --with-c++-tests"
4751   fi
4752   if test -n "$inc_longrunning_tests"; then
4753     func_append actioncmd " --with-longrunning-tests"
4754   fi
4755   if test -n "$inc_privileged_tests"; then
4756     func_append actioncmd " --with-privileged-tests"
4757   fi
4758   if test -n "$inc_unportable_tests"; then
4759     func_append actioncmd " --with-unportable-tests"
4760   fi
4761   if test -n "$inc_all_tests"; then
4762     func_append actioncmd " --with-all-tests"
4763   fi
4764   for module in $avoidlist; do
4765     func_append actioncmd " --avoid=$module"
4766   done
4767   if test -n "$lgpl"; then
4768     if test "$lgpl" = yes; then
4769       func_append actioncmd " --lgpl"
4770     else
4771       func_append actioncmd " --lgpl=$lgpl"
4772     fi
4773   fi
4774   if test -n "$makefile_name"; then
4775     func_append actioncmd " --makefile-name=$makefile_name"
4776   fi
4777   if test "$cond_dependencies" = true; then
4778     func_append actioncmd " --conditional-dependencies"
4779   else
4780     func_append actioncmd " --no-conditional-dependencies"
4781   fi
4782   if test "$libtool" = true; then
4783     func_append actioncmd " --libtool"
4784   else
4785     func_append actioncmd " --no-libtool"
4786   fi
4787   func_append actioncmd " --macro-prefix=$macro_prefix"
4788   if test -n "$po_domain"; then
4789     func_append actioncmd " --po-domain=$po_domain"
4790   fi
4791   if test -n "$witness_c_macro"; then
4792     func_append actioncmd " --witness-c-macro=$witness_c_macro"
4793   fi
4794   if test -n "$vc_files"; then
4795     if test "$vc_files" = true; then
4796       func_append actioncmd " --vc-files"
4797     else
4798       func_append actioncmd " --no-vc-files"
4799     fi
4800   fi
4801   func_append actioncmd " `echo $specified_modules`"
4802
4803   # Determine include_guard_prefix.
4804   func_compute_include_guard_prefix
4805
4806   # Default the makefile name to Makefile.am.
4807   if test -n "$makefile_name"; then
4808     makefile_am=$makefile_name
4809   else
4810     makefile_am=Makefile.am
4811   fi
4812
4813   # Create normal Makefile.ams.
4814   for_test=false
4815
4816   # Setup list of Makefile.am edits that are to be performed afterwards.
4817   # Some of these edits apply to files that we will generate; others are
4818   # under the responsibility of the developer.
4819   makefile_am_edits=0
4820   # func_note_Makefile_am_edit dir var value
4821   # remembers that ${dir}Makefile.am needs to be edited to that ${var} mentions
4822   # ${value}.
4823   func_note_Makefile_am_edit ()
4824   {
4825     makefile_am_edits=`expr $makefile_am_edits + 1`
4826     eval makefile_am_edit${makefile_am_edits}_dir=\"\$1\"
4827     eval makefile_am_edit${makefile_am_edits}_var=\"\$2\"
4828     eval makefile_am_edit${makefile_am_edits}_val=\"\$3\"
4829   }
4830   if test "$makefile_am" = Makefile.am; then
4831     sourcebase_dir=`echo "$sourcebase" | sed -n -e 's,/[^/]*$,/,p'`
4832     sourcebase_base=`basename "$sourcebase"`
4833     func_note_Makefile_am_edit "$sourcebase_dir" SUBDIRS "$sourcebase_base"
4834   fi
4835   if test -n "$pobase"; then
4836     pobase_dir=`echo "$pobase" | sed -n -e 's,/[^/]*$,/,p'`
4837     pobase_base=`basename "$pobase"`
4838     func_note_Makefile_am_edit "$pobase_dir" SUBDIRS "$pobase_base"
4839   fi
4840   if test -n "$inctests"; then
4841     if test "$makefile_am" = Makefile.am; then
4842       testsbase_dir=`echo "$testsbase" | sed -n -e 's,/[^/]*$,/,p'`
4843       testsbase_base=`basename "$testsbase"`
4844       func_note_Makefile_am_edit "$testsbase_dir" SUBDIRS "$testsbase_base"
4845     fi
4846   fi
4847   func_note_Makefile_am_edit "" ACLOCAL_AMFLAGS "-I ${m4base}"
4848   {
4849     # Find the first parent directory of $m4base that contains or will contain
4850     # a Makefile.am.
4851     sed_last='s,^.*/\([^/][^/]*\)//*$,\1/,
4852 s,//*$,/,'
4853     sed_butlast='s,[^/][^/]*//*$,,'
4854     dir1="${m4base}/"; dir2=""
4855     while test -n "$dir1" \
4856           && ! { test -f "${destdir}/${dir1}Makefile.am" \
4857                  || test "${dir1}Makefile.am" = "$sourcebase/$makefile_am" \
4858                  || test "./${dir1}Makefile.am" = "$sourcebase/$makefile_am" \
4859                  || { test -n "$inctests" \
4860                       && { test "${dir1}Makefile.am" = "$testsbase/$makefile_am" \
4861                            || test "./${dir1}Makefile.am" = "$testsbase/$makefile_am"; }; }; }; do
4862       dir2=`echo "$dir1" | sed -e "$sed_last"`"$dir2"
4863       dir1=`echo "$dir1" | sed -e "$sed_butlast"`
4864     done
4865     func_note_Makefile_am_edit "$dir1" EXTRA_DIST "${dir2}gnulib-cache.m4"
4866   }
4867
4868   # Create library makefile.
4869   func_dest_tmpfilename $sourcebase/$makefile_am
4870   destfile="$sourcebase/$makefile_am"
4871   modules="$main_modules"
4872   func_emit_lib_Makefile_am > "$tmpfile"
4873   if test -f "$destdir"/$sourcebase/$makefile_am; then
4874     if cmp "$destdir"/$sourcebase/$makefile_am "$tmpfile" > /dev/null; then
4875       rm -f "$tmpfile"
4876     else
4877       if $doit; then
4878         echo "Updating $sourcebase/$makefile_am (backup in $sourcebase/$makefile_am~)"
4879         mv -f "$destdir"/$sourcebase/$makefile_am "$destdir"/$sourcebase/$makefile_am~
4880         mv -f "$tmpfile" "$destdir"/$sourcebase/$makefile_am
4881       else
4882         echo "Update $sourcebase/$makefile_am (backup in $sourcebase/$makefile_am~)"
4883         rm -f "$tmpfile"
4884       fi
4885     fi
4886   else
4887     if $doit; then
4888       echo "Creating $sourcebase/$makefile_am"
4889       mv -f "$tmpfile" "$destdir"/$sourcebase/$makefile_am
4890     else
4891       echo "Create $sourcebase/$makefile_am"
4892       rm -f "$tmpfile"
4893     fi
4894     func_append added_files "$sourcebase/$makefile_am$nl"
4895   fi
4896
4897   # Create po/ directory.
4898   if test -n "$pobase"; then
4899     # Create po makefile and auxiliary files.
4900     for file in Makefile.in.in remove-potcdate.sin; do
4901       func_dest_tmpfilename $pobase/$file
4902       func_lookup_file build-aux/po/$file
4903       cat "$lookedup_file" > "$tmpfile"
4904       if test -f "$destdir"/$pobase/$file; then
4905         if cmp "$destdir"/$pobase/$file "$tmpfile" > /dev/null; then
4906           rm -f "$tmpfile"
4907         else
4908           if $doit; then
4909             echo "Updating $pobase/$file (backup in $pobase/$file~)"
4910             mv -f "$destdir"/$pobase/$file "$destdir"/$pobase/$file~
4911             mv -f "$tmpfile" "$destdir"/$pobase/$file
4912           else
4913             echo "Update $pobase/$file (backup in $pobase/$file~)"
4914             rm -f "$tmpfile"
4915           fi
4916         fi
4917       else
4918         if $doit; then
4919           echo "Creating $pobase/$file"
4920           mv -f "$tmpfile" "$destdir"/$pobase/$file
4921         else
4922           echo "Create $pobase/$file"
4923           rm -f "$tmpfile"
4924         fi
4925         func_append added_files "$pobase/$file$nl"
4926       fi
4927     done
4928     # Create po makefile parameterization, part 1.
4929     func_dest_tmpfilename $pobase/Makevars
4930     func_emit_po_Makevars > "$tmpfile"
4931     if test -f "$destdir"/$pobase/Makevars; then
4932       if cmp "$destdir"/$pobase/Makevars "$tmpfile" > /dev/null; then
4933         rm -f "$tmpfile"
4934       else
4935         if $doit; then
4936           echo "Updating $pobase/Makevars (backup in $pobase/Makevars~)"
4937           mv -f "$destdir"/$pobase/Makevars "$destdir"/$pobase/Makevars~
4938           mv -f "$tmpfile" "$destdir"/$pobase/Makevars
4939         else
4940           echo "Update $pobase/Makevars (backup in $pobase/Makevars~)"
4941           rm -f "$tmpfile"
4942         fi
4943       fi
4944     else
4945       if $doit; then
4946         echo "Creating $pobase/Makevars"
4947         mv -f "$tmpfile" "$destdir"/$pobase/Makevars
4948       else
4949         echo "Create $pobase/Makevars"
4950         rm -f "$tmpfile"
4951       fi
4952       func_append added_files "$pobase/Makevars$nl"
4953     fi
4954     # Create po makefile parameterization, part 2.
4955     func_dest_tmpfilename $pobase/POTFILES.in
4956     func_emit_po_POTFILES_in > "$tmpfile"
4957     if test -f "$destdir"/$pobase/POTFILES.in; then
4958       if cmp "$destdir"/$pobase/POTFILES.in "$tmpfile" > /dev/null; then
4959         rm -f "$tmpfile"
4960       else
4961         if $doit; then
4962           echo "Updating $pobase/POTFILES.in (backup in $pobase/POTFILES.in~)"
4963           mv -f "$destdir"/$pobase/POTFILES.in "$destdir"/$pobase/POTFILES.in~
4964           mv -f "$tmpfile" "$destdir"/$pobase/POTFILES.in
4965         else
4966           echo "Update $pobase/POTFILES.in (backup in $pobase/POTFILES.in~)"
4967           rm -f "$tmpfile"
4968         fi
4969       fi
4970     else
4971       if $doit; then
4972         echo "Creating $pobase/POTFILES.in"
4973         mv -f "$tmpfile" "$destdir"/$pobase/POTFILES.in
4974       else
4975         echo "Create $pobase/POTFILES.in"
4976         rm -f "$tmpfile"
4977       fi
4978       func_append added_files "$pobase/POTFILES.in$nl"
4979     fi
4980     # Fetch PO files.
4981     TP_URL="http://translationproject.org/latest/"
4982     TP_RSYNC_URI="translationproject.org::tp/latest/"
4983     if $doit; then
4984       echo "Fetching gnulib PO files from $TP_URL"
4985       (cd "$destdir"/$pobase \
4986        && { # Prefer rsync over wget if it is available, since it consumes
4987             # less network bandwidth, due to compression.
4988             if type rsync 2>/dev/null | grep / > /dev/null; then
4989               rsync -Lrtz "${TP_RSYNC_URI}gnulib/" .
4990             else
4991               wget --quiet -r -l1 -nd -np -A.po "${TP_URL}gnulib"
4992             fi
4993           }
4994       )
4995     else
4996       echo "Fetch gnulib PO files from $TP_URL"
4997     fi
4998     # Create po/LINGUAS.
4999     if $doit; then
5000       func_dest_tmpfilename $pobase/LINGUAS
5001       (cd "$destdir"/$pobase \
5002        && { echo '# Set of available languages.'
5003             LC_ALL=C ls -1 *.po | sed -e 's,\.po$,,'
5004           }
5005       ) > "$tmpfile"
5006       if test -f "$destdir"/$pobase/LINGUAS; then
5007         if cmp "$destdir"/$pobase/LINGUAS "$tmpfile" > /dev/null; then
5008           rm -f "$tmpfile"
5009         else
5010           echo "Updating $pobase/LINGUAS (backup in $pobase/LINGUAS~)"
5011           mv -f "$destdir"/$pobase/LINGUAS "$destdir"/$pobase/LINGUAS~
5012           mv -f "$tmpfile" "$destdir"/$pobase/LINGUAS
5013         fi
5014       else
5015         echo "Creating $pobase/LINGUAS"
5016         mv -f "$tmpfile" "$destdir"/$pobase/LINGUAS
5017         func_append added_files "$pobase/LINGUAS$nl"
5018       fi
5019     else
5020       if test -f "$destdir"/$pobase/LINGUAS; then
5021         echo "Update $pobase/LINGUAS (backup in $pobase/LINGUAS~)"
5022       else
5023         echo "Create $pobase/LINGUAS"
5024       fi
5025     fi
5026   fi
5027
5028   # Create m4/gnulib-cache.m4.
5029   func_dest_tmpfilename $m4base/gnulib-cache.m4
5030   (
5031     func_emit_copyright_notice
5032     echo "#"
5033     echo "# This file represents the specification of how gnulib-tool is used."
5034     echo "# It acts as a cache: It is written and read by gnulib-tool."
5035     echo "# In projects that use version control, this file is meant to be put under"
5036     echo "# version control, like the configure.ac and various Makefile.am files."
5037     echo
5038     echo
5039     echo "# Specification in the form of a command-line invocation:"
5040     echo "#   $actioncmd"
5041     echo
5042     echo "# Specification in the form of a few gnulib-tool.m4 macro invocations:"
5043     # Store the local_gnulib_dir relative to destdir.
5044     case "$local_gnulib_dir" in
5045       "" | /*)
5046         relative_local_gnulib_dir="$local_gnulib_dir" ;;
5047       * )
5048         case "$destdir" in
5049           /*) relative_local_gnulib_dir="$local_gnulib_dir" ;;
5050           *)
5051             # destdir, local_gnulib_dir are both relative.
5052             func_relativize "$destdir" "$local_gnulib_dir"
5053             relative_local_gnulib_dir="$reldir" ;;
5054         esac ;;
5055     esac
5056     echo "gl_LOCAL_DIR([$relative_local_gnulib_dir])"
5057     echo "gl_MODULES(["
5058     echo "$specified_modules" | sed -e 's/^/  /g'
5059     echo "])"
5060     test -z "$incobsolete" || echo "gl_WITH_OBSOLETE"
5061     test -z "$inc_cxx_tests" || echo "gl_WITH_CXX_TESTS"
5062     test -z "$inc_longrunning_tests" || echo "gl_WITH_LONGRUNNING_TESTS"
5063     test -z "$inc_privileged_tests" || echo "gl_WITH_PRIVILEGED_TESTS"
5064     test -z "$inc_unportable_tests" || echo "gl_WITH_UNPORTABLE_TESTS"
5065     test -z "$inc_all_tests" || echo "gl_WITH_ALL_TESTS"
5066     echo "gl_AVOID([$avoidlist])"
5067     echo "gl_SOURCE_BASE([$sourcebase])"
5068     echo "gl_M4_BASE([$m4base])"
5069     echo "gl_PO_BASE([$pobase])"
5070     echo "gl_DOC_BASE([$docbase])"
5071     echo "gl_TESTS_BASE([$testsbase])"
5072     test -z "$inctests" || echo "gl_WITH_TESTS"
5073     echo "gl_LIB([$libname])"
5074     if test -n "$lgpl"; then
5075       if test "$lgpl" = yes; then
5076         echo "gl_LGPL"
5077       else
5078         echo "gl_LGPL([$lgpl])"
5079       fi
5080     fi
5081     echo "gl_MAKEFILE_NAME([$makefile_name])"
5082     if test "$cond_dependencies" = true; then
5083       echo "gl_CONDITIONAL_DEPENDENCIES"
5084     fi
5085     if test "$libtool" = true; then
5086       echo "gl_LIBTOOL"
5087     fi
5088     echo "gl_MACRO_PREFIX([$macro_prefix])"
5089     echo "gl_PO_DOMAIN([$po_domain])"
5090     echo "gl_WITNESS_C_DOMAIN([$witness_c_macro])"
5091     if test -n "$vc_files"; then
5092       echo "gl_VC_FILES([$vc_files])"
5093     fi
5094   ) > "$tmpfile"
5095   if test -f "$destdir"/$m4base/gnulib-cache.m4; then
5096     if cmp "$destdir"/$m4base/gnulib-cache.m4 "$tmpfile" > /dev/null; then
5097       rm -f "$tmpfile"
5098     else
5099       if $doit; then
5100         echo "Updating $m4base/gnulib-cache.m4 (backup in $m4base/gnulib-cache.m4~)"
5101         mv -f "$destdir"/$m4base/gnulib-cache.m4 "$destdir"/$m4base/gnulib-cache.m4~
5102         mv -f "$tmpfile" "$destdir"/$m4base/gnulib-cache.m4
5103       else
5104         echo "Update $m4base/gnulib-cache.m4 (backup in $m4base/gnulib-cache.m4~)"
5105         if false; then
5106           cat "$tmpfile"
5107           echo
5108           echo "# gnulib-cache.m4 ends here"
5109         fi
5110         rm -f "$tmpfile"
5111       fi
5112     fi
5113   else
5114     if $doit; then
5115       echo "Creating $m4base/gnulib-cache.m4"
5116       mv -f "$tmpfile" "$destdir"/$m4base/gnulib-cache.m4
5117     else
5118       echo "Create $m4base/gnulib-cache.m4"
5119       cat "$tmpfile"
5120       rm -f "$tmpfile"
5121     fi
5122   fi
5123
5124   # Create m4/gnulib-comp.m4.
5125   func_dest_tmpfilename $m4base/gnulib-comp.m4
5126   (
5127     echo "# DO NOT EDIT! GENERATED AUTOMATICALLY!"
5128     func_emit_copyright_notice
5129     echo "#"
5130     echo "# This file represents the compiled summary of the specification in"
5131     echo "# gnulib-cache.m4. It lists the computed macro invocations that need"
5132     echo "# to be invoked from configure.ac."
5133     echo "# In projects that use version control, this file can be treated like"
5134     echo "# other built files."
5135     echo
5136     echo
5137     echo "# This macro should be invoked from $configure_ac, in the section"
5138     echo "# \"Checks for programs\", right after AC_PROG_CC, and certainly before"
5139     echo "# any checks for libraries, header files, types and library functions."
5140     echo "AC_DEFUN([${macro_prefix}_EARLY],"
5141     echo "["
5142     echo "  m4_pattern_forbid([^gl_[A-Z]])dnl the gnulib macro namespace"
5143     echo "  m4_pattern_allow([^gl_ES\$])dnl a valid locale name"
5144     echo "  m4_pattern_allow([^gl_LIBOBJS\$])dnl a variable"
5145     echo "  m4_pattern_allow([^gl_LTLIBOBJS\$])dnl a variable"
5146     echo "  AC_REQUIRE([gl_PROG_AR_RANLIB])"
5147     if test -n "$uses_subdirs"; then
5148       echo "  AC_REQUIRE([AM_PROG_CC_C_O])"
5149     fi
5150     for module in $final_modules; do
5151       func_verify_module
5152       if test -n "$module"; then
5153         echo "# Code from module $module:"
5154         func_get_autoconf_early_snippet "$module"
5155       fi
5156     done \
5157       | sed -e '/^$/d;' -e 's/^/  /'
5158     echo "])"
5159     echo
5160     echo "# This macro should be invoked from $configure_ac, in the section"
5161     echo "# \"Check for header files, types and library functions\"."
5162     echo "AC_DEFUN([${macro_prefix}_INIT],"
5163     echo "["
5164     if test "$libtool" = true; then
5165       echo "  AM_CONDITIONAL([GL_COND_LIBTOOL], [true])"
5166       echo "  gl_cond_libtool=true"
5167     else
5168       echo "  AM_CONDITIONAL([GL_COND_LIBTOOL], [false])"
5169       echo "  gl_cond_libtool=false"
5170       echo "  gl_libdeps="
5171       echo "  gl_ltlibdeps="
5172     fi
5173     if test "$auxdir" != "build-aux"; then
5174       sed_replace_build_aux='
5175         :a
5176         /AC_CONFIG_FILES(.*:build-aux\/.*)/{
5177           s|AC_CONFIG_FILES(\(.*\):build-aux/\(.*\))|AC_CONFIG_FILES(\1:'"$auxdir"'/\2)|
5178           ba
5179         }'
5180     else
5181       sed_replace_build_aux="$sed_noop"
5182     fi
5183     echo "  gl_m4_base='$m4base'"
5184     func_emit_initmacro_start $macro_prefix
5185     echo "  gl_source_base='$sourcebase'"
5186     if test -n "$witness_c_macro"; then
5187       echo "  m4_pushdef([gl_MODULE_INDICATOR_CONDITION], [$witness_c_macro])"
5188     fi
5189     func_emit_autoconf_snippets "$main_modules" func_verify_module true false true
5190     if test -n "$witness_c_macro"; then
5191       echo "  m4_popdef([gl_MODULE_INDICATOR_CONDITION])"
5192     fi
5193     echo "  # End of code from modules"
5194     func_emit_initmacro_end $macro_prefix
5195     echo "  gltests_libdeps="
5196     echo "  gltests_ltlibdeps="
5197     func_emit_initmacro_start ${macro_prefix}tests
5198     echo "  gl_source_base='$testsbase'"
5199     # Define a tests witness macro that depends on the package.
5200     # PACKAGE is defined by AM_INIT_AUTOMAKE, PACKAGE_TARNAME is defined by AC_INIT.
5201     # See <http://lists.gnu.org/archive/html/automake/2009-05/msg00145.html>.
5202     echo "changequote(,)dnl"
5203     echo "  ${macro_prefix}tests_WITNESS=IN_\`echo \"\${PACKAGE-\$PACKAGE_TARNAME}\" | LC_ALL=C tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ | LC_ALL=C sed -e 's/[^A-Z0-9_]/_/g'\`_GNULIB_TESTS"
5204     echo "changequote([, ])dnl"
5205     echo "  AC_SUBST([${macro_prefix}tests_WITNESS])"
5206     echo "  gl_module_indicator_condition=\$${macro_prefix}tests_WITNESS"
5207     echo "  m4_pushdef([gl_MODULE_INDICATOR_CONDITION], [\$gl_module_indicator_condition])"
5208     func_emit_autoconf_snippets "$testsrelated_modules" func_verify_module true true true
5209     echo "  m4_popdef([gl_MODULE_INDICATOR_CONDITION])"
5210     func_emit_initmacro_end ${macro_prefix}tests
5211     # _LIBDEPS and _LTLIBDEPS variables are not needed if this library is
5212     # created using libtool, because libtool already handles the dependencies.
5213     if test "$libtool" != true; then
5214       libname_upper=`echo "$libname" | LC_ALL=C tr '[a-z]-' '[A-Z]_'`
5215       echo "  ${libname_upper}_LIBDEPS=\"\$gl_libdeps\""
5216       echo "  AC_SUBST([${libname_upper}_LIBDEPS])"
5217       echo "  ${libname_upper}_LTLIBDEPS=\"\$gl_ltlibdeps\""
5218       echo "  AC_SUBST([${libname_upper}_LTLIBDEPS])"
5219     fi
5220     if $use_libtests; then
5221       echo "  LIBTESTS_LIBDEPS=\"\$gltests_libdeps\""
5222       echo "  AC_SUBST([LIBTESTS_LIBDEPS])"
5223     fi
5224     echo "])"
5225     func_emit_initmacro_done $macro_prefix $sourcebase
5226     func_emit_initmacro_done ${macro_prefix}tests $testsbase
5227     echo
5228     echo "# This macro records the list of files which have been installed by"
5229     echo "# gnulib-tool and may be removed by future gnulib-tool invocations."
5230     echo "AC_DEFUN([${macro_prefix}_FILE_LIST], ["
5231     echo "$files" | sed -e 's,^,  ,'
5232     echo "])"
5233   ) > "$tmpfile"
5234   if test -f "$destdir"/$m4base/gnulib-comp.m4; then
5235     if cmp "$destdir"/$m4base/gnulib-comp.m4 "$tmpfile" > /dev/null; then
5236       rm -f "$tmpfile"
5237     else
5238       if $doit; then
5239         echo "Updating $m4base/gnulib-comp.m4 (backup in $m4base/gnulib-comp.m4~)"
5240         mv -f "$destdir"/$m4base/gnulib-comp.m4 "$destdir"/$m4base/gnulib-comp.m4~
5241         mv -f "$tmpfile" "$destdir"/$m4base/gnulib-comp.m4
5242       else
5243         echo "Update $m4base/gnulib-comp.m4 (backup in $m4base/gnulib-comp.m4~)"
5244         if false; then
5245           cat "$tmpfile"
5246           echo
5247           echo "# gnulib-comp.m4 ends here"
5248         fi
5249         rm -f "$tmpfile"
5250       fi
5251     fi
5252   else
5253     if $doit; then
5254       echo "Creating $m4base/gnulib-comp.m4"
5255       mv -f "$tmpfile" "$destdir"/$m4base/gnulib-comp.m4
5256     else
5257       echo "Create $m4base/gnulib-comp.m4"
5258       cat "$tmpfile"
5259       rm -f "$tmpfile"
5260     fi
5261   fi
5262
5263   if test -n "$inctests"; then
5264     # Create tests makefile.
5265     func_dest_tmpfilename $testsbase/$makefile_am
5266     destfile="$testsbase/$makefile_am"
5267     modules="$testsrelated_modules"
5268     func_emit_tests_Makefile_am "${macro_prefix}tests_WITNESS" > "$tmpfile"
5269     if test -f "$destdir"/$testsbase/$makefile_am; then
5270       if cmp "$destdir"/$testsbase/$makefile_am "$tmpfile" > /dev/null; then
5271         rm -f "$tmpfile"
5272       else
5273         if $doit; then
5274           echo "Updating $testsbase/$makefile_am (backup in $testsbase/$makefile_am~)"
5275           mv -f "$destdir"/$testsbase/$makefile_am "$destdir"/$testsbase/$makefile_am~
5276           mv -f "$tmpfile" "$destdir"/$testsbase/$makefile_am
5277         else
5278           echo "Update $testsbase/$makefile_am (backup in $testsbase/$makefile_am~)"
5279           rm -f "$tmpfile"
5280         fi
5281       fi
5282     else
5283       if $doit; then
5284         echo "Creating $testsbase/$makefile_am"
5285         mv -f "$tmpfile" "$destdir"/$testsbase/$makefile_am
5286       else
5287         echo "Create $testsbase/$makefile_am"
5288         rm -f "$tmpfile"
5289       fi
5290     func_append added_files "$testsbase/$makefile_am$nl"
5291     fi
5292   fi
5293
5294   if test "$vc_files" != false; then
5295     # Update the .cvsignore and .gitignore files.
5296     { echo "$added_files" | sed -e '/^$/d' -e 's,\([^/]*\)$,|A|\1,'
5297       echo "$removed_files" | sed -e '/^$/d' -e 's,\([^/]*\)$,|R|\1,'
5298       # Treat gnulib-comp.m4 like an added file, even if it already existed.
5299       echo "$m4base/|A|gnulib-comp.m4"
5300     } | LC_ALL=C sort -t'|' -k1,1 > "$tmp"/fileset-changes
5301     { # Rearrange file descriptors. Needed because "while ... done < ..."
5302       # constructs are executed in a subshell e.g. by Solaris 10 /bin/sh.
5303       exec 5<&0 < "$tmp"/fileset-changes
5304       func_update_ignorelist ()
5305       {
5306         ignore="$1"
5307         if test "$ignore" = .gitignore; then
5308           # In a .gitignore file, "foo" applies to the current directory and all
5309           # subdirectories, whereas "/foo" applies to the current directory only.
5310           anchor='/'
5311           escaped_anchor='\/'
5312           doubly_escaped_anchor='\\/'
5313         else
5314           anchor=''
5315           escaped_anchor=''
5316           doubly_escaped_anchor=''
5317         fi
5318         if test -f "$destdir/$dir$ignore"; then
5319           if test -n "$dir_added" || test -n "$dir_removed"; then
5320             sed -e "s|^$anchor||" < "$destdir/$dir$ignore" | LC_ALL=C sort > "$tmp"/ignore
5321             (echo "$dir_added" | sed -e '/^$/d' | LC_ALL=C sort -u \
5322                | LC_ALL=C join -v 1 - "$tmp"/ignore > "$tmp"/ignore-added
5323              echo "$dir_removed" | sed -e '/^$/d' | LC_ALL=C sort -u \
5324                | LC_ALL=C join -v 1 - "$tmp"/ignore > "$tmp"/ignore-removed
5325             )
5326             if test -s "$tmp"/ignore-added || test -s "$tmp"/ignore-removed; then
5327               if $doit; then
5328                 echo "Updating $destdir/$dir$ignore (backup in $destdir/$dir${ignore}~)"
5329                 mv -f "$destdir/$dir$ignore" "$destdir/$dir$ignore"~
5330                 { sed -e 's,/,\\/,g' -e 's,^,/^,' -e 's,$,\$/d,' < "$tmp"/ignore-removed
5331                   if test -n "$anchor"; then sed -e 's,/,\\/,g' -e "s,^,/^${doubly_escaped_anchor}," -e 's,$,$/d,' < "$tmp"/ignore-removed; fi
5332                 } > "$tmp"/sed-ignore-removed
5333                 { cat "$destdir/$dir$ignore"~
5334                   sed -e "s|^|$anchor|" < "$tmp"/ignore-added
5335                 } | sed -f "$tmp"/sed-ignore-removed \
5336                   > "$destdir/$dir$ignore"
5337               else
5338                 echo "Update $destdir/$dir$ignore (backup in $destdir/$dir${ignore}~)"
5339               fi
5340             fi
5341           fi
5342         else
5343           if test -n "$dir_added"; then
5344             if $doit; then
5345               echo "Creating $destdir/$dir$ignore"
5346               {
5347                 if test "$ignore" = .cvsignore; then
5348                   echo ".deps"
5349                   # Automake generates Makefile rules that create .dirstamp files.
5350                   echo ".dirstamp"
5351                 fi
5352                 echo "$dir_added" | sed -e '/^$/d' -e "s|^|$anchor|" | LC_ALL=C sort -u
5353               } > "$destdir/$dir$ignore"
5354             else
5355               echo "Create $destdir/$dir$ignore"
5356             fi
5357           fi
5358         fi
5359       }
5360       func_done_dir ()
5361       {
5362         dir="$1"
5363         dir_added="$2"
5364         dir_removed="$3"
5365         if test -d "$destdir/CVS" || test -d "$destdir/${dir}CVS" || test -f "$destdir/${dir}.cvsignore"; then
5366           func_update_ignorelist .cvsignore
5367         fi
5368         if test -d "$destdir/.git" || test -f "$destdir/${dir}.gitignore"; then
5369           func_update_ignorelist .gitignore
5370         fi
5371       }
5372       last_dir=
5373       last_dir_added=
5374       last_dir_removed=
5375       while read line; do
5376         # Why not ''read next_dir op file'' ? Because the dir column can be empty.
5377         next_dir=`echo "$line" | sed -e 's,|.*,,'`
5378         op=`echo "$line" | sed -e 's,^[^|]*|\([^|]*\)|.*$,\1,'`
5379         file=`echo "$line" | sed -e 's,^[^|]*|[^|]*|,,'`
5380         if test "$next_dir" != "$last_dir"; then
5381           func_done_dir "$last_dir" "$last_dir_added" "$last_dir_removed"
5382           last_dir="$next_dir"
5383           last_dir_added=
5384           last_dir_removed=
5385         fi
5386         case $op in
5387           A) func_append last_dir_added "$file$nl";;
5388           R) func_append last_dir_removed "$file$nl";;
5389         esac
5390       done
5391       func_done_dir "$last_dir" "$last_dir_added" "$last_dir_removed"
5392       exec 0<&5 5<&-
5393     }
5394   fi
5395
5396   echo "Finished."
5397   echo
5398   echo "You may need to add #include directives for the following .h files."
5399   # Intersect $specified_modules and $main_modules
5400   # (since $specified_modules is not necessarily of subset of $main_modules
5401   # - some may have been skipped through --avoid, and since the elements of
5402   # $main_modules but not in $specified_modules can go away without explicit
5403   # notice - through changes in the module dependencies).
5404   echo "$specified_modules" > "$tmp"/modules1 # a sorted list, one module per line
5405   echo "$main_modules" > "$tmp"/modules2 # also a sorted list, one module per line
5406   # First the #include <...> directives without #ifs, sorted for convenience,
5407   # then the #include "..." directives without #ifs, sorted for convenience,
5408   # then the #include directives that are surrounded by #ifs. Not sorted.
5409   for module in `LC_ALL=C join "$tmp"/modules1 "$tmp"/modules2`; do
5410     include_directive=`func_get_include_directive "$module"`
5411     case "$nl$include_directive" in
5412       *"$nl#if"*)
5413         echo "$include_directive" 1>&5
5414         ;;
5415       *)
5416         echo "$include_directive" | grep -v 'include "' 1>&6
5417         echo "$include_directive" | grep 'include "' 1>&7
5418         ;;
5419     esac
5420   done 5> "$tmp"/include-if 6> "$tmp"/include-angles 7> "$tmp"/include-quotes
5421   (
5422    LC_ALL=C sort -u "$tmp"/include-angles
5423    LC_ALL=C sort -u "$tmp"/include-quotes
5424    cat "$tmp"/include-if
5425   ) | sed -e '/^$/d' -e 's/^/  /'
5426   rm -f "$tmp"/include-angles "$tmp"/include-quotes "$tmp"/include-if
5427
5428   for module in $main_modules; do
5429     func_get_link_directive "$module"
5430   done \
5431     | LC_ALL=C sort -u | sed -e '/^$/d' -e 's/^/  /' > "$tmp"/link
5432   if test `wc -l < "$tmp"/link` != 0; then
5433     echo
5434     echo "You may need to use the following Makefile variables when linking."
5435     echo "Use them in <program>_LDADD when linking a program, or"
5436     echo "in <library>_a_LDFLAGS or <library>_la_LDFLAGS when linking a library."
5437     cat "$tmp"/link
5438   fi
5439   rm -f "$tmp"/link
5440
5441   echo
5442   echo "Don't forget to"
5443   if test "$makefile_am" = Makefile.am; then
5444     echo "  - add \"$sourcebase/Makefile\" to AC_CONFIG_FILES in $configure_ac,"
5445   else
5446     echo "  - \"include $makefile_name\" from within \"$sourcebase/Makefile.am\","
5447   fi
5448   if test -n "$pobase"; then
5449     echo "  - add \"$pobase/Makefile.in\" to AC_CONFIG_FILES in $configure_ac,"
5450   fi
5451   if test -n "$inctests"; then
5452     if test "$makefile_am" = Makefile.am; then
5453       echo "  - add \"$testsbase/Makefile\" to AC_CONFIG_FILES in $configure_ac,"
5454     else
5455       echo "  - \"include $makefile_name\" from within \"$testsbase/Makefile.am\","
5456     fi
5457   fi
5458   edit=0
5459   while test $edit != $makefile_am_edits; do
5460     edit=`expr $edit + 1`
5461     eval dir=\"\$makefile_am_edit${edit}_dir\"
5462     eval var=\"\$makefile_am_edit${edit}_var\"
5463     eval val=\"\$makefile_am_edit${edit}_val\"
5464     if test -n "$var"; then
5465       echo "  - mention \"${val}\" in ${var} in ${dir}Makefile.am,"
5466     fi
5467   done
5468   if grep '^ *AC_PROG_CC_STDC' "$configure_ac" > /dev/null; then
5469     position_early_after=AC_PROG_CC_STDC
5470   else
5471     if grep '^ *AC_PROG_CC_C99' "$configure_ac" > /dev/null; then
5472       position_early_after=AC_PROG_CC_C99
5473     else
5474       position_early_after=AC_PROG_CC
5475     fi
5476   fi
5477   echo "  - invoke ${macro_prefix}_EARLY in $configure_ac, right after $position_early_after,"
5478   echo "  - invoke ${macro_prefix}_INIT in $configure_ac."
5479 }
5480
5481 # func_create_testdir testdir modules
5482 # Input:
5483 # - local_gnulib_dir  from --local-dir
5484 # - modcache        true or false, from --cache-modules/--no-cache-modules
5485 # - auxdir          directory relative to destdir where to place build aux files
5486 # - inctests        true if tests should be included, blank otherwise
5487 # - incobsolete     true if obsolete modules among dependencies should be
5488 #                   included, blank otherwise
5489 # - excl_cxx_tests   true if C++ interoperability tests should be excluded,
5490 #                    blank otherwise
5491 # - excl_longrunning_tests  true if long-runnings tests should be excluded,
5492 #                           blank otherwise
5493 # - excl_privileged_tests  true if tests that require root privileges should be
5494 #                          excluded, blank otherwise
5495 # - excl_unportable_tests  true if tests that fail on some platforms should be
5496 #                          excluded, blank otherwise
5497 # - single_configure  true if a single configure file should be generated,
5498 #                     false for a separate configure file for the tests
5499 # - avoidlist       list of modules to avoid
5500 # - cond_dependencies  true if --conditional-dependencies was given, false if
5501 #                      --no-conditional-dependencies was given, blank otherwise
5502 # - libtool         true if --libtool was given, false if --no-libtool was
5503 #                   given, blank otherwise
5504 # - symbolic        true if files should be symlinked, copied otherwise
5505 # - lsymbolic       true if files from local_gnulib_dir should be symlinked,
5506 #                   copied otherwise
5507 func_create_testdir ()
5508 {
5509   testdir="$1"
5510   modules="$2"
5511   if test -z "$modules"; then
5512     # All modules together.
5513     # Except config-h, which breaks all modules which use HAVE_CONFIG_H.
5514     # Except ftruncate, mountlist, which abort the configuration on mingw. FIXME.
5515     # Except lib-ignore, which leads to link errors when Sun C++ is used. FIXME.
5516     modules=`func_all_modules`
5517     modules=`for m in $modules; do case $m in config-h | ftruncate | mountlist | lib-ignore) ;; *) echo $m;; esac; done`
5518   fi
5519   specified_modules="$modules"
5520
5521   # Canonicalize the list of specified modules.
5522   specified_modules=`for m in $specified_modules; do echo $m; done | LC_ALL=C sort -u`
5523
5524   # Unlike in func_import, here we want to include all kinds of tests for the
5525   # directly specified modules, but not for dependencies.
5526   inc_all_direct_tests=true
5527   inc_all_indirect_tests="$inc_all_tests"
5528
5529   # Check that the license of every module is consistent with the license of
5530   # its dependencies.
5531   saved_inctests="$inctests"
5532   # When computing transitive closures, don't consider $module to depend on
5533   # $module-tests. Need this becauses tests are implicitly GPL and may depend
5534   # on GPL modules - therefore we don't want a warning in this case.
5535   inctests=""
5536   for requested_module in $specified_modules; do
5537     requested_license=`func_get_license "$requested_module"`
5538     if test "$requested_license" != GPL; then
5539       # Here we use func_modules_transitive_closure, not just
5540       # func_get_dependencies, so that we also detect weird situations like
5541       # an LGPL module which depends on a GPLed build tool module which depends
5542       # on a GPL module.
5543       modules="$requested_module"
5544       func_modules_transitive_closure
5545       for module in $modules; do
5546         license=`func_get_license "$module"`
5547         case "$license" in
5548           'GPLed build tool') ;;
5549           'public domain' | 'unlimited' | 'unmodifiable license text') ;;
5550           *)
5551             case "$requested_license" in
5552               GPLv2+)
5553                 case "$license" in
5554                   GPLv2+ | LGPLv2+) ;;
5555                   *) func_warning "module $requested_module depends on a module with an incompatible license: $module" ;;
5556                 esac
5557                 ;;
5558               LGPL)
5559                 case "$license" in
5560                   LGPL | LGPLv2+) ;;
5561                   *) func_warning "module $requested_module depends on a module with an incompatible license: $module" ;;
5562                 esac
5563                 ;;
5564               LGPLv2+)
5565                 case "$license" in
5566                   LGPLv2+) ;;
5567                   *) func_warning "module $requested_module depends on a module with an incompatible license: $module" ;;
5568                 esac
5569                 ;;
5570             esac
5571             ;;
5572         esac
5573       done
5574     fi
5575   done
5576   inctests="$saved_inctests"
5577
5578   # Subdirectory names.
5579   sourcebase=gllib
5580   m4base=glm4
5581   pobase=
5582   docbase=gldoc
5583   testsbase=gltests
5584   macro_prefix=gl
5585   po_domain=
5586   witness_c_macro=
5587   vc_files=
5588
5589   # Determine final module list.
5590   modules="$specified_modules"
5591   func_modules_transitive_closure
5592   if test $verbose -ge 0; then
5593     func_show_module_list
5594   fi
5595   final_modules="$modules"
5596
5597   if $single_configure; then
5598     # Determine main module list and tests-related module list separately.
5599     func_modules_transitive_closure_separately
5600   fi
5601
5602   if $single_configure; then
5603     # Determine whether a $testsbase/libtests.a is needed.
5604     func_determine_use_libtests
5605   fi
5606
5607   # Add the dummy module if needed.
5608   if $single_configure; then
5609     func_modules_add_dummy_separately
5610   else
5611     func_modules_add_dummy
5612   fi
5613
5614   # Show banner notice of every module.
5615   if $single_configure; then
5616     modules="$main_modules"
5617     func_modules_notice
5618   else
5619     func_modules_notice
5620   fi
5621
5622   # Determine final file list.
5623   if $single_configure; then
5624     func_modules_to_filelist_separately
5625   else
5626     func_modules_to_filelist
5627     if test $verbose -ge 0; then
5628       echo "File list:"
5629       echo "$files" | sed -e 's/^/  /'
5630     fi
5631   fi
5632   # Add files for which the copy in gnulib is newer than the one that
5633   # "automake --add-missing --copy" would provide.
5634   files="$files build-aux/config.guess"
5635   files="$files build-aux/config.sub"
5636   files=`for f in $files; do echo $f; done | LC_ALL=C sort -u`
5637
5638   rewritten='%REWRITTEN%'
5639   sed_rewrite_files="\
5640     s,^build-aux/,$rewritten$auxdir/,
5641     s,^doc/,$rewritten$docbase/,
5642     s,^lib/,$rewritten$sourcebase/,
5643     s,^m4/,$rewritten$m4base/,
5644     s,^tests/,$rewritten$testsbase/,
5645     s,^tests=lib/,$rewritten$testsbase/,
5646     s,^top/,$rewritten,
5647     s,^$rewritten,,"
5648
5649   # Create directories.
5650   for f in $files; do echo $f; done \
5651     | sed -e "$sed_rewrite_files" \
5652     | sed -n -e 's,^\(.*\)/[^/]*,\1,p' \
5653     | LC_ALL=C sort -u \
5654     > "$tmp"/dirs
5655   { # Rearrange file descriptors. Needed because "while ... done < ..."
5656     # constructs are executed in a subshell e.g. by Solaris 10 /bin/sh.
5657     exec 5<&0 < "$tmp"/dirs
5658     while read d; do
5659       mkdir -p "$testdir/$d"
5660     done
5661     exec 0<&5 5<&-
5662   }
5663
5664   # Copy files or make symbolic links.
5665   delimiter='   '
5666   for f in $files; do echo $f; done \
5667     | sed -e "s,^.*\$,&$delimiter&," -e "$sed_rewrite_files" \
5668     | LC_ALL=C sort \
5669     > "$tmp"/files
5670   { # Rearrange file descriptors. Needed because "while ... done < ..."
5671     # constructs are executed in a subshell e.g. by Solaris 10 /bin/sh.
5672     exec 5<&0 < "$tmp"/files
5673     while read g f; do
5674       case "$f" in
5675         tests=lib/*) f=`echo "$f" | sed -e 's,^tests=lib/,lib/,'` ;;
5676       esac
5677       func_lookup_file "$f"
5678       if test -n "$lookedup_tmp"; then
5679         cp -p "$lookedup_file" "$testdir/$g"
5680       else
5681         ln "$lookedup_file" "$testdir/$g" 2>/dev/null ||
5682         if { test -n "$symbolic" \
5683              || { test -n "$lsymbolic" \
5684                   && test "$lookedup_file" = "$local_gnulib_dir/$f"; }; }; then
5685           func_ln "$lookedup_file" "$testdir/$g"
5686         else
5687           cp -p "$lookedup_file" "$testdir/$g"
5688         fi
5689       fi
5690     done
5691     exec 0<&5 5<&-
5692   }
5693
5694   # Determine include_guard_prefix.
5695   func_compute_include_guard_prefix
5696
5697   # Create Makefile.ams that are for testing.
5698   for_test=true
5699
5700   # No special edits are needed.
5701   makefile_am_edits=0
5702
5703   # Create $sourcebase/Makefile.am.
5704   mkdir -p "$testdir/$sourcebase"
5705   destfile="$sourcebase/Makefile.am"
5706   if $single_configure; then
5707     modules="$main_modules"
5708   fi
5709   func_emit_lib_Makefile_am > "$testdir/$sourcebase/Makefile.am"
5710   any_uses_subdirs="$uses_subdirs"
5711
5712   # Create $m4base/Makefile.am.
5713   mkdir -p "$testdir/$m4base"
5714   (echo "## Process this file with automake to produce Makefile.in."
5715    echo
5716    echo "EXTRA_DIST ="
5717    for f in $files; do
5718      case "$f" in
5719        m4/* )
5720          echo "EXTRA_DIST += "`echo "$f" | sed -e 's,^m4/,,'` ;;
5721      esac
5722    done
5723   ) > "$testdir/$m4base/Makefile.am"
5724
5725   subdirs="$sourcebase $m4base"
5726   subdirs_with_configure_ac=""
5727
5728   if false && test -f "$testdir"/$m4base/gettext.m4; then
5729     # Avoid stupid error message from automake:
5730     # "AM_GNU_GETTEXT used but `po' not in SUBDIRS"
5731     mkdir -p "$testdir/po"
5732     (echo "## Process this file with automake to produce Makefile.in."
5733     ) > "$testdir/po/Makefile.am"
5734     func_append subdirs " po"
5735   fi
5736
5737   if test -n "$inctests"; then
5738     test -d "$testdir/$testsbase" || mkdir "$testdir/$testsbase"
5739     if $single_configure; then
5740       # Create $testsbase/Makefile.am.
5741       destfile="$testsbase/Makefile.am"
5742       modules="$testsrelated_modules"
5743       func_emit_tests_Makefile_am "${macro_prefix}tests_WITNESS" > "$testdir/$testsbase/Makefile.am"
5744     else
5745       # Viewed from the $testsbase subdirectory, $auxdir is different.
5746       saved_auxdir="$auxdir"
5747       auxdir=`echo "$testsbase/" | sed -e 's%[^/][^/]*//*%../%g'`"$auxdir"
5748       # Create $testsbase/Makefile.am.
5749       use_libtests=false
5750       destfile="$testsbase/Makefile.am"
5751       func_emit_tests_Makefile_am "" > "$testdir/$testsbase/Makefile.am"
5752       any_uses_subdirs="$any_uses_subdirs$uses_subdirs"
5753       # Create $testsbase/configure.ac.
5754       (echo "# Process this file with autoconf to produce a configure script."
5755        echo "AC_INIT([dummy], [0])"
5756        echo "AC_CONFIG_AUX_DIR([$auxdir])"
5757        echo "AM_INIT_AUTOMAKE"
5758        echo
5759        echo "AC_CONFIG_HEADERS([config.h])"
5760        echo
5761        echo "AC_PROG_CC"
5762        echo "AC_PROG_INSTALL"
5763        echo "AC_PROG_MAKE_SET"
5764        echo "gl_PROG_AR_RANLIB"
5765        echo
5766        if test -n "$uses_subdirs"; then
5767          echo "AM_PROG_CC_C_O"
5768          echo
5769        fi
5770        for module in $modules; do
5771          func_verify_module
5772          if test -n "$module"; then
5773            case $module in
5774              gnumakefile | maintainer-makefile)
5775                # These modules are meant to be used only in the top-level directory.
5776                ;;
5777              *)
5778                func_get_autoconf_early_snippet "$module"
5779                ;;
5780            esac
5781          fi
5782        done \
5783          | sed -e '/^$/d;' -e 's/AC_REQUIRE(\[\([^()]*\)\])/\1/'
5784        if test "$libtool" = true; then
5785          echo "LT_INIT([win32-dll])"
5786          echo "LT_LANG([C++])"
5787          echo "AM_CONDITIONAL([GL_COND_LIBTOOL], [true])"
5788          echo "gl_cond_libtool=true"
5789        else
5790          echo "AM_CONDITIONAL([GL_COND_LIBTOOL], [false])"
5791          echo "gl_cond_libtool=false"
5792          echo "gl_libdeps="
5793          echo "gl_ltlibdeps="
5794        fi
5795        # Wrap the set of autoconf snippets into an autoconf macro that is then
5796        # invoked. This is needed because autoconf does not support AC_REQUIRE
5797        # at the top level:
5798        #   error: AC_REQUIRE(gt_CSHARPCOMP): cannot be used outside of an AC_DEFUN'd macro
5799        # but we want the AC_REQUIRE to have its normal meaning (provide one
5800        # expansion of the required macro before the current point, and only one
5801        # expansion total).
5802        echo "AC_DEFUN([gl_INIT], ["
5803        sed_replace_build_aux='
5804          :a
5805          /AC_CONFIG_FILES(.*:build-aux\/.*)/{
5806            s|AC_CONFIG_FILES(\(.*\):build-aux/\(.*\))|AC_CONFIG_FILES(\1:'"$auxdir"'/\2)|
5807            ba
5808          }'
5809        echo "gl_m4_base='../$m4base'"
5810        func_emit_initmacro_start $macro_prefix
5811        # We don't have explicit ordering constraints between the various
5812        # autoconf snippets. It's cleanest to put those of the library before
5813        # those of the tests.
5814        echo "gl_source_base='../$sourcebase'"
5815        func_emit_autoconf_snippets "$modules" func_verify_nontests_module false false false
5816        echo "gl_source_base='.'"
5817        func_emit_autoconf_snippets "$modules" func_verify_tests_module false false false
5818        func_emit_initmacro_end $macro_prefix
5819        # _LIBDEPS and _LTLIBDEPS variables are not needed if this library is
5820        # created using libtool, because libtool already handles the dependencies.
5821        if test "$libtool" != true; then
5822          libname_upper=`echo "$libname" | LC_ALL=C tr '[a-z]-' '[A-Z]_'`
5823          echo "  ${libname_upper}_LIBDEPS=\"\$gl_libdeps\""
5824          echo "  AC_SUBST([${libname_upper}_LIBDEPS])"
5825          echo "  ${libname_upper}_LTLIBDEPS=\"\$gl_ltlibdeps\""
5826          echo "  AC_SUBST([${libname_upper}_LTLIBDEPS])"
5827        fi
5828        echo "])"
5829        func_emit_initmacro_done $macro_prefix $sourcebase # FIXME use $sourcebase or $testsbase?
5830        echo
5831        echo "gl_INIT"
5832        echo
5833        # Usually $testsbase/config.h will be a superset of config.h. Verify this
5834        # by "merging" config.h into $testsbase/config.h; look out for gcc warnings.
5835        echo "AH_TOP([#include \"../config.h\"])"
5836        echo
5837        echo "AC_CONFIG_FILES([Makefile])"
5838        echo "AC_OUTPUT"
5839       ) > "$testdir/$testsbase/configure.ac"
5840       auxdir="$saved_auxdir"
5841       subdirs_with_configure_ac="$subdirs_with_configure_ac $testsbase"
5842     fi
5843     func_append subdirs " $testsbase"
5844   fi
5845
5846   # Create Makefile.am.
5847   (echo "## Process this file with automake to produce Makefile.in."
5848    echo
5849    echo "AUTOMAKE_OPTIONS = 1.5 foreign"
5850    echo
5851    echo "SUBDIRS = $subdirs"
5852    echo
5853    echo "ACLOCAL_AMFLAGS = -I $m4base"
5854   ) > "$testdir/Makefile.am"
5855
5856   # Create configure.ac.
5857   (echo "# Process this file with autoconf to produce a configure script."
5858    echo "AC_INIT([dummy], [0])"
5859    if test "$auxdir" != "."; then
5860      echo "AC_CONFIG_AUX_DIR([$auxdir])"
5861    fi
5862    echo "AM_INIT_AUTOMAKE"
5863    echo
5864    echo "AC_CONFIG_HEADERS([config.h])"
5865    echo
5866    echo "AC_PROG_CC"
5867    echo "AC_PROG_INSTALL"
5868    echo "AC_PROG_MAKE_SET"
5869    echo
5870    echo "# For autobuild."
5871    echo "AC_CANONICAL_BUILD"
5872    echo "AC_CANONICAL_HOST"
5873    echo
5874    echo "m4_pattern_forbid([^gl_[A-Z]])dnl the gnulib macro namespace"
5875    echo "m4_pattern_allow([^gl_ES\$])dnl a valid locale name"
5876    echo "m4_pattern_allow([^gl_LIBOBJS\$])dnl a variable"
5877    echo "m4_pattern_allow([^gl_LTLIBOBJS\$])dnl a variable"
5878    echo
5879    echo "gl_PROG_AR_RANLIB"
5880    echo
5881    if test -n "$any_uses_subdirs"; then
5882      echo "AM_PROG_CC_C_O"
5883      echo
5884    fi
5885    for module in $final_modules; do
5886      if $single_configure; then
5887        func_verify_module
5888      else
5889        func_verify_nontests_module
5890      fi
5891      if test -n "$module"; then
5892        func_get_autoconf_early_snippet "$module"
5893      fi
5894    done \
5895      | sed -e '/^$/d;' -e 's/AC_REQUIRE(\[\([^()]*\)\])/\1/'
5896    if test "$libtool" = true; then
5897      echo "LT_INIT([win32-dll])"
5898      echo "LT_LANG([C++])"
5899      echo "AM_CONDITIONAL([GL_COND_LIBTOOL], [true])"
5900      echo "gl_cond_libtool=true"
5901    else
5902      echo "AM_CONDITIONAL([GL_COND_LIBTOOL], [false])"
5903      echo "gl_cond_libtool=false"
5904      echo "gl_libdeps="
5905      echo "gl_ltlibdeps="
5906    fi
5907    # Wrap the set of autoconf snippets into an autoconf macro that is then
5908    # invoked. This is needed because autoconf does not support AC_REQUIRE
5909    # at the top level:
5910    #   error: AC_REQUIRE(gt_CSHARPCOMP): cannot be used outside of an AC_DEFUN'd macro
5911    # but we want the AC_REQUIRE to have its normal meaning (provide one
5912    # expansion of the required macro before the current point, and only one
5913    # expansion total).
5914    echo "AC_DEFUN([gl_INIT], ["
5915    if test "$auxdir" != "build-aux"; then
5916      sed_replace_build_aux='
5917        :a
5918        /AC_CONFIG_FILES(.*:build-aux\/.*)/{
5919          s|AC_CONFIG_FILES(\(.*\):build-aux/\(.*\))|AC_CONFIG_FILES(\1:'"$auxdir"'/\2)|
5920          ba
5921        }'
5922    else
5923      sed_replace_build_aux="$sed_noop"
5924    fi
5925    echo "gl_m4_base='$m4base'"
5926    func_emit_initmacro_start $macro_prefix
5927    echo "gl_source_base='$sourcebase'"
5928    if $single_configure; then
5929      func_emit_autoconf_snippets "$main_modules" func_verify_module true false false
5930    else
5931      func_emit_autoconf_snippets "$modules" func_verify_nontests_module true false false
5932    fi
5933    func_emit_initmacro_end $macro_prefix
5934    if $single_configure; then
5935      echo "  gltests_libdeps="
5936      echo "  gltests_ltlibdeps="
5937      func_emit_initmacro_start ${macro_prefix}tests
5938      echo "  gl_source_base='$testsbase'"
5939      # Define a tests witness macro.
5940      echo "  ${macro_prefix}tests_WITNESS=IN_GNULIB_TESTS"
5941      echo "  AC_SUBST([${macro_prefix}tests_WITNESS])"
5942      echo "  gl_module_indicator_condition=\$${macro_prefix}tests_WITNESS"
5943      echo "  m4_pushdef([gl_MODULE_INDICATOR_CONDITION], [\$gl_module_indicator_condition])"
5944      func_emit_autoconf_snippets "$testsrelated_modules" func_verify_module true false false
5945      echo "  m4_popdef([gl_MODULE_INDICATOR_CONDITION])"
5946      func_emit_initmacro_end ${macro_prefix}tests
5947    fi
5948    # _LIBDEPS and _LTLIBDEPS variables are not needed if this library is
5949    # created using libtool, because libtool already handles the dependencies.
5950    if test "$libtool" != true; then
5951      libname_upper=`echo "$libname" | LC_ALL=C tr '[a-z]-' '[A-Z]_'`
5952      echo "  ${libname_upper}_LIBDEPS=\"\$gl_libdeps\""
5953      echo "  AC_SUBST([${libname_upper}_LIBDEPS])"
5954      echo "  ${libname_upper}_LTLIBDEPS=\"\$gl_ltlibdeps\""
5955      echo "  AC_SUBST([${libname_upper}_LTLIBDEPS])"
5956    fi
5957    if $single_configure; then
5958      if $use_libtests; then
5959        echo "  LIBTESTS_LIBDEPS=\"\$gltests_libdeps\""
5960        echo "  AC_SUBST([LIBTESTS_LIBDEPS])"
5961      fi
5962    fi
5963    echo "])"
5964    func_emit_initmacro_done $macro_prefix $sourcebase
5965    if $single_configure; then
5966      func_emit_initmacro_done ${macro_prefix}tests $testsbase
5967    fi
5968    echo
5969    echo "gl_INIT"
5970    echo
5971    if test -n "$subdirs_with_configure_ac"; then
5972      echo "AC_CONFIG_SUBDIRS(["`echo $subdirs_with_configure_ac`"])"
5973    fi
5974    makefiles="Makefile"
5975    for d in $subdirs; do
5976      # For subdirs that have a configure.ac by their own, it's the subdir's
5977      # configure.ac which creates the subdir's Makefile.am, not this one.
5978      case " $subdirs_with_configure_ac " in
5979        *" $d "*) ;;
5980        *) func_append makefiles " $d/Makefile" ;;
5981      esac
5982    done
5983    echo "AC_CONFIG_FILES([$makefiles])"
5984    echo "AC_OUTPUT"
5985   ) > "$testdir/configure.ac"
5986
5987   # Create autogenerated files.
5988   (cd "$testdir"
5989    # Do not use "${AUTORECONF} --force --install", because it may invoke
5990    # autopoint, which brings in older versions of some of our .m4 files.
5991    if test -f $m4base/gettext.m4; then
5992      func_execute_command ${AUTOPOINT} --force || func_exit 1
5993      for f in $m4base/*.m4~; do
5994        if test -f $f; then
5995          mv -f $f `echo $f | sed -e 's,~$,,'` || func_exit 1
5996        fi
5997      done
5998    fi
5999    if test "$libtool" = true; then
6000      func_execute_command ${LIBTOOLIZE} --copy || func_exit 1
6001    fi
6002    func_execute_command ${ACLOCAL} -I $m4base || func_exit 1
6003    if ! test -d build-aux; then
6004      func_execute_command mkdir build-aux || func_exit 1
6005    fi
6006    func_execute_command ${AUTOCONF} || func_exit 1
6007    func_execute_command ${AUTOHEADER} || func_exit 1
6008    func_execute_command ${AUTOMAKE} --add-missing --copy || func_exit 1
6009   ) || func_exit 1
6010   if test -n "$inctests" && ! $single_configure; then
6011     # Create autogenerated files.
6012     (cd "$testdir/$testsbase" || func_exit 1
6013      # Do not use "${AUTORECONF} --force --install", because it may invoke
6014      # autopoint, which brings in older versions of some of our .m4 files.
6015      if test -f ../$m4base/gettext.m4; then
6016        func_execute_command ${AUTOPOINT} --force || func_exit 1
6017        for f in ../$m4base/*.m4~; do
6018          if test -f $f; then
6019            mv -f $f `echo $f | sed -e 's,~$,,'` || func_exit 1
6020          fi
6021        done
6022      fi
6023      func_execute_command ${ACLOCAL} -I ../$m4base || func_exit 1
6024      if ! test -d ../build-aux; then
6025        func_execute_command mkdir ../build-aux
6026      fi
6027      func_execute_command ${AUTOCONF} || func_exit 1
6028      func_execute_command ${AUTOHEADER} || func_exit 1
6029      func_execute_command ${AUTOMAKE} --add-missing --copy || func_exit 1
6030     ) || func_exit 1
6031   fi
6032   # Need to run configure and make once, to create built files that are to be
6033   # distributed (such as parse-datetime.c).
6034   sed_remove_make_variables='s,[$]([A-Za-z0-9_]*),,g'
6035   # Extract the value of "CLEANFILES += ..." and "MOSTLYCLEANFILES += ...".
6036   cleaned_files=`sed -e "$sed_remove_backslash_newline" < "$testdir/$sourcebase/Makefile.am" \
6037                  | sed -n -e 's,^CLEANFILES[     ]*+=\([^#]*\).*$,\1,p' -e 's,^MOSTLYCLEANFILES[         ]*+=\([^#]*\).*$,\1,p'`
6038   cleaned_files=`for file in $cleaned_files; do echo " $file "; done`
6039   # Extract the value of "BUILT_SOURCES += ...". Remove variable references
6040   # such $(FOO_H) because they don't refer to distributed files.
6041   built_sources=`sed -e "$sed_remove_backslash_newline" < "$testdir/$sourcebase/Makefile.am" \
6042                  | sed -n -e 's,^BUILT_SOURCES[  ]*+=\([^#]*\).*$,\1,p' \
6043                  | sed -e "$sed_remove_make_variables"`
6044   distributed_built_sources=`for file in $built_sources; do
6045                                case "$cleaned_files" in
6046                                  *" "$file" "*) ;;
6047                                  *) echo $file ;;
6048                                esac;
6049                              done`
6050   tests_distributed_built_sources=
6051   if test -n "$inctests"; then
6052     # Likewise for built files in the $testsbase directory.
6053     tests_cleaned_files=`sed -e "$sed_remove_backslash_newline" < "$testdir/$testsbase/Makefile.am" \
6054                          | sed -n -e 's,^CLEANFILES[     ]*+=\([^#]*\).*$,\1,p' -e 's,^MOSTLYCLEANFILES[         ]*+=\([^#]*\).*$,\1,p'`
6055     tests_cleaned_files=`for file in $tests_cleaned_files; do echo " $file "; done`
6056     tests_built_sources=`sed -e "$sed_remove_backslash_newline" < "$testdir/$testsbase/Makefile.am" \
6057                          | sed -n -e 's,^BUILT_SOURCES[  ]*+=\([^#]*\).*$,\1,p' \
6058                          | sed -e "$sed_remove_make_variables"`
6059     tests_distributed_built_sources=`for file in $tests_built_sources; do
6060                                        case "$tests_cleaned_files" in
6061                                          *" "$file" "*) ;;
6062                                          *) echo $file ;;
6063                                        esac;
6064                                      done`
6065   fi
6066   if test -n "$distributed_built_sources" || test -n "$tests_distributed_built_sources"; then
6067     (cd "$testdir"
6068      ./configure || func_exit 1
6069        if test -n "$distributed_built_sources"; then
6070          cd "$sourcebase"
6071          echo 'built_sources: $(BUILT_SOURCES)' >> Makefile
6072          $MAKE AUTOCONF="${AUTOCONF}" AUTOHEADER="${AUTOHEADER}" ACLOCAL="${ACLOCAL}" AUTOMAKE="${AUTOMAKE}" AUTORECONF="${AUTORECONF}" AUTOPOINT="${AUTOPOINT}" LIBTOOLIZE="${LIBTOOLIZE}" \
6073                built_sources \
6074            || func_exit 1
6075          cd ..
6076        fi
6077        if test -n "$tests_distributed_built_sources"; then
6078          cd "$testsbase"
6079          echo 'built_sources: $(BUILT_SOURCES)' >> Makefile
6080          $MAKE AUTOCONF="${AUTOCONF}" AUTOHEADER="${AUTOHEADER}" ACLOCAL="${ACLOCAL}" AUTOMAKE="${AUTOMAKE}" AUTORECONF="${AUTORECONF}" AUTOPOINT="${AUTOPOINT}" LIBTOOLIZE="${LIBTOOLIZE}" \
6081                built_sources \
6082            || func_exit 1
6083          cd ..
6084        fi
6085      $MAKE AUTOCONF="${AUTOCONF}" AUTOHEADER="${AUTOHEADER}" ACLOCAL="${ACLOCAL}" AUTOMAKE="${AUTOMAKE}" AUTORECONF="${AUTORECONF}" AUTOPOINT="${AUTOPOINT}" LIBTOOLIZE="${LIBTOOLIZE}" \
6086            distclean \
6087        || func_exit 1
6088     ) || func_exit 1
6089   fi
6090 }
6091
6092 # func_create_megatestdir megatestdir allmodules
6093 # Input:
6094 # - local_gnulib_dir  from --local-dir
6095 # - modcache        true or false, from --cache-modules/--no-cache-modules
6096 # - auxdir          directory relative to destdir where to place build aux files
6097 func_create_megatestdir ()
6098 {
6099   megatestdir="$1"
6100   allmodules="$2"
6101   if test -z "$allmodules"; then
6102     allmodules=`func_all_modules`
6103   fi
6104
6105   megasubdirs=
6106   # First, all modules one by one.
6107   for onemodule in $allmodules; do
6108     func_create_testdir "$megatestdir/$onemodule" $onemodule
6109     func_append megasubdirs "$onemodule "
6110   done
6111   # Then, all modules all together.
6112   # Except config-h, which breaks all modules which use HAVE_CONFIG_H.
6113   allmodules=`for m in $allmodules; do if test $m != config-h; then echo $m; fi; done`
6114   func_create_testdir "$megatestdir/ALL" "$allmodules"
6115   func_append megasubdirs "ALL"
6116
6117   # Create autobuild.
6118   cvsdate=`if test -f "$gnulib_dir/CVS/Entries"; then \
6119              vc_witness="$gnulib_dir/CVS/Entries"; \
6120            else \
6121              vc_witness="$gnulib_dir/.git/refs/heads/master"; \
6122            fi; \
6123            sh "$gnulib_dir/build-aux/mdate-sh" "$vc_witness" \
6124              | sed -e 's,January,01,'   -e 's,Jan,01,' \
6125                    -e 's,February,02,'  -e 's,Feb,02,' \
6126                    -e 's,March,03,'     -e 's,Mar,03,' \
6127                    -e 's,April,04,'     -e 's,Apr,04,' \
6128                    -e 's,May,05,'                      \
6129                    -e 's,June,06,'      -e 's,Jun,06,' \
6130                    -e 's,July,07,'      -e 's,Jul,07,' \
6131                    -e 's,August,08,'    -e 's,Aug,08,' \
6132                    -e 's,September,09,' -e 's,Sep,09,' \
6133                    -e 's,October,10,'   -e 's,Oct,10,' \
6134                    -e 's,November,11,'  -e 's,Nov,11,' \
6135                    -e 's,December,12,'  -e 's,Dec,12,' \
6136                    -e 's,^,00,' -e 's,^[0-9]*\([0-9][0-9] \),\1,' \
6137                    -e 's,^\([0-9]*\) \([0-9]*\) \([0-9]*\),\3\2\1,'`
6138   (echo '#!/bin/sh'
6139    echo "CVSDATE=$cvsdate"
6140    echo ": \${MAKE=make}"
6141    echo "test -d logs || mkdir logs"
6142    echo "for module in $megasubdirs; do"
6143    echo "  echo \"Working on module \$module...\""
6144    echo "  safemodule=\`echo \$module | sed -e 's|/|-|g'\`"
6145    echo "  (echo \"To: gnulib@autobuild.josefsson.org\""
6146    echo "   echo"
6147    echo "   set -x"
6148    echo "   : autobuild project... \$module"
6149    echo "   : autobuild revision... cvs-\$CVSDATE-000000"
6150    echo "   : autobuild timestamp... \`date \"+%Y%m%d-%H%M%S\"\`"
6151    echo "   : autobuild hostname... \`hostname\`"
6152    echo "   cd \$module && ./configure \$CONFIGURE_OPTIONS && \$MAKE && \$MAKE check && \$MAKE distclean"
6153    echo "   echo rc=\$?"
6154    echo "  ) 2>&1 | { if test -n \"\$AUTOBUILD_SUBST\"; then sed -e \"\$AUTOBUILD_SUBST\"; else cat; fi; } > logs/\$safemodule"
6155    echo "done"
6156   ) > "$megatestdir/do-autobuild"
6157   chmod a+x "$megatestdir/do-autobuild"
6158
6159   # Create Makefile.am.
6160   (echo "## Process this file with automake to produce Makefile.in."
6161    echo
6162    echo "AUTOMAKE_OPTIONS = 1.5 foreign"
6163    echo
6164    echo "SUBDIRS = $megasubdirs"
6165    echo
6166    echo "EXTRA_DIST = do-autobuild"
6167   ) > "$megatestdir/Makefile.am"
6168
6169   # Create configure.ac.
6170   (echo "# Process this file with autoconf to produce a configure script."
6171    echo "AC_INIT([dummy], [0])"
6172    if test "$auxdir" != "."; then
6173      echo "AC_CONFIG_AUX_DIR([$auxdir])"
6174    fi
6175    echo "AM_INIT_AUTOMAKE"
6176    echo
6177    echo "AC_PROG_MAKE_SET"
6178    echo
6179    echo "AC_CONFIG_SUBDIRS([$megasubdirs])"
6180    echo "AC_CONFIG_FILES([Makefile])"
6181    echo "AC_OUTPUT"
6182   ) > "$megatestdir/configure.ac"
6183
6184   # Create autogenerated files.
6185   (cd "$megatestdir"
6186    # Do not use "${AUTORECONF} --install", because autoreconf operates
6187    # recursively, but the subdirectories are already finished, therefore
6188    # calling autoreconf here would only waste lots of CPU time.
6189    func_execute_command ${ACLOCAL} || func_exit 1
6190    func_execute_command mkdir build-aux
6191    func_execute_command ${AUTOCONF} || func_exit 1
6192    func_execute_command ${AUTOMAKE} --add-missing --copy || func_exit 1
6193   ) || func_exit 1
6194 }
6195
6196 case $mode in
6197   "" )
6198     func_fatal_error "no mode specified" ;;
6199
6200   list )
6201     func_all_modules
6202     ;;
6203
6204   find )
6205     # sed expression that converts a literal to a basic regular expression.
6206     # Needs to handle . [ \ * ^ $.
6207     sed_literal_to_basic_regex='s/\\/\\\\/g
6208 s/\[/\\[/g
6209 s/\^/\\^/g
6210 s/\([.*$]\)/[\1]/g'
6211     for filename
6212     do
6213       if test -f "$gnulib_dir/$filename" \
6214          || { test -n "$local_gnulib_dir" && test -f "$local_gnulib_dir/$filename"; }; then
6215         filename_anywhere_regex=`echo "$filename" | sed -e "$sed_literal_to_basic_regex"`
6216         filename_line_regex='^'"$filename_anywhere_regex"'$'
6217         module_candidates=`
6218           {
6219             (cd "$gnulib_dir" && find modules -type f -print | xargs -n 100 grep -l "$filename_line_regex" /dev/null | sed -e 's,^modules/,,')
6220             if test -n "$local_gnulib_dir" && test -d "$local_gnulib_dir/modules"; then
6221               (cd "$local_gnulib_dir" && find modules -type f -print | xargs -n 100 grep -l "$filename_anywhere_regex" /dev/null | sed -e 's,^modules/,,' -e 's,\.diff$,,')
6222             fi
6223           } \
6224             | func_sanitize_modulelist \
6225             | LC_ALL=C sort -u
6226           `
6227         for module in $module_candidates; do
6228           if func_get_filelist $module | grep "$filename_line_regex" > /dev/null; then
6229             echo $module
6230           fi
6231         done
6232       else
6233         func_warning "file $filename does not exist"
6234       fi
6235     done
6236     ;;
6237
6238   import | add-import | remove-import | update )
6239
6240     # Where to import.
6241     if test -z "$destdir"; then
6242       destdir=.
6243     fi
6244     test -d "$destdir" \
6245       || func_fatal_error "destination directory does not exist: $destdir"
6246
6247     # Prefer configure.ac to configure.in.
6248     if test -f "$destdir"/configure.ac; then
6249       configure_ac="$destdir/configure.ac"
6250     else
6251       if test -f "$destdir"/configure.in; then
6252         configure_ac="$destdir/configure.in"
6253       else
6254         func_fatal_error "cannot find $destdir/configure.ac - make sure you run gnulib-tool from within your package's directory"
6255       fi
6256     fi
6257
6258     # Analyze configure.ac.
6259     guessed_auxdir="."
6260     guessed_libtool=false
6261     my_sed_traces='
6262       s,#.*$,,
6263       s,^dnl .*$,,
6264       s, dnl .*$,,
6265       /AC_CONFIG_AUX_DIR/ {
6266         s,^.*AC_CONFIG_AUX_DIR([[ ]*\([^]"$`\\)]*\).*$,guessed_auxdir="\1",p
6267       }
6268       /A[CM]_PROG_LIBTOOL/ {
6269         s,^.*$,guessed_libtool=true,p
6270       }'
6271     eval `sed -n -e "$my_sed_traces" < "$configure_ac"`
6272
6273     if test -z "$auxdir"; then
6274       auxdir="$guessed_auxdir"
6275     fi
6276
6277     # Determine where to apply func_import.
6278     if test "$mode" = import; then
6279       # Apply func_import to a particular gnulib directory.
6280       # The command line contains the complete specification; don't look at
6281       # the contents of gnulib-cache.m4.
6282       test -n "$supplied_libname" || supplied_libname=true
6283       test -n "$sourcebase" || sourcebase="lib"
6284       test -n "$m4base" || m4base="m4"
6285       test -n "$docbase" || docbase="doc"
6286       test -n "$testsbase" || testsbase="tests"
6287       test -n "$macro_prefix" || macro_prefix="gl"
6288       func_import "$*"
6289     else
6290       if test -n "$m4base"; then
6291         # Apply func_import to a particular gnulib directory.
6292         # Any number of additional modules can be given.
6293         if test ! -f "$destdir/$m4base"/gnulib-cache.m4; then
6294           # First use of gnulib in the given m4base.
6295           test -n "$supplied_libname" || supplied_libname=true
6296           test -n "$sourcebase" || sourcebase="lib"
6297           test -n "$docbase" || docbase="doc"
6298           test -n "$testsbase" || testsbase="tests"
6299           test -n "$macro_prefix" || macro_prefix="gl"
6300         fi
6301         func_import "$*"
6302       else
6303         # Apply func_import to all gnulib directories.
6304         # To get this list of directories, look at Makefile.am. (Not at
6305         # configure, because it may be omitted from version control. Also,
6306         # don't run "find $destdir -name gnulib-cache.m4", as it might be
6307         # too expensive.)
6308         m4dirs=
6309         m4dirs_count=0
6310         if test -f "$destdir"/Makefile.am; then
6311           aclocal_amflags=`sed -n -e 's/^ACLOCAL_AMFLAGS[        ]*=\(.*\)$/\1/p' "$destdir"/Makefile.am`
6312           m4dir_is_next=
6313           for arg in $aclocal_amflags; do
6314             if test -n "$m4dir_is_next"; then
6315               # Ignore absolute directory pathnames, like /usr/local/share/aclocal.
6316               case "$arg" in
6317                 /*) ;;
6318                 *)
6319                   if test -f "$destdir/$arg"/gnulib-cache.m4; then
6320                     func_append m4dirs " $arg"
6321                     m4dirs_count=`expr $m4dirs_count + 1`
6322                   fi
6323                   ;;
6324               esac
6325               m4dir_is_next=
6326             else
6327               if test "X$arg" = "X-I"; then
6328                 m4dir_is_next=yes
6329               else
6330                 m4dir_is_next=
6331               fi
6332             fi
6333           done
6334         else
6335           # No Makefile.am! Oh well. Look at the last generated aclocal.m4.
6336           if test -f "$destdir"/aclocal.m4; then
6337             sedexpr1='s,^m4_include(\[\(.*\)])$,\1,p'
6338             sedexpr2='s,^[^/]*$,.,'
6339             sedexpr3='s,/[^/]*$,,'
6340             m4dirs=`sed -n -e "$sedexpr1" aclocal.m4 | sed -e "$sedexpr2" -e "$sedexpr3" | LC_ALL=C sort -u`
6341             m4dirs=`for arg in $m4dirs; do if test -f "$destdir/$arg"/gnulib-cache.m4; then echo $arg; fi; done`
6342             m4dirs_count=`for arg in $m4dirs; do echo "$arg"; done | wc -l`
6343           fi
6344         fi
6345         if test $m4dirs_count = 0; then
6346           # First use of gnulib in a package.
6347           # Any number of additional modules can be given.
6348           test -n "$supplied_libname" || supplied_libname=true
6349           test -n "$sourcebase" || sourcebase="lib"
6350           m4base="m4"
6351           test -n "$docbase" || docbase="doc"
6352           test -n "$testsbase" || testsbase="tests"
6353           test -n "$macro_prefix" || macro_prefix="gl"
6354           func_import "$*"
6355         else
6356           if test $m4dirs_count = 1; then
6357             # There's only one use of gnulib here. Assume the user means it.
6358             # Any number of additional modules can be given.
6359             for m4base in $m4dirs; do
6360               func_import "$*"
6361             done
6362           else
6363             # Ambiguous - guess what the user meant.
6364             if test $# = 0; then
6365               # No further arguments. Guess the user wants to update all of them.
6366               for m4base in $m4dirs; do
6367                 # Perform func_import in a subshell, so that variable values
6368                 # such as
6369                 #   local_gnulib_dir, incobsolete, inc_cxx_tests,
6370                 #   inc_longrunning_tests, inc_privileged_tests,
6371                 #   inc_unportable_tests, inc_all_tests, avoidlist, sourcebase,
6372                 #   m4base, pobase, docbase, testsbase, inctests, libname, lgpl,
6373                 #   makefile_name, libtool, macro_prefix, po_domain,
6374                 #   witness_c_macro, vc_files
6375                 # don't propagate from one directory to another.
6376                 (func_import) || func_exit 1
6377               done
6378             else
6379               # Really ambiguous.
6380               func_fatal_error "Ambiguity: to which directory should the modules be added? Please specify at least --m4-base=..."
6381             fi
6382           fi
6383         fi
6384       fi
6385     fi
6386     ;;
6387
6388   create-testdir )
6389     if test -z "$destdir"; then
6390       func_fatal_error "please specify --dir option"
6391     fi
6392     mkdir "$destdir"
6393     test -d "$destdir" \
6394       || func_fatal_error "could not create destination directory"
6395     test -n "$auxdir" || auxdir="build-aux"
6396     func_create_testdir "$destdir" "$*"
6397     ;;
6398
6399   create-megatestdir )
6400     if test -z "$destdir"; then
6401       func_fatal_error "please specify --dir option"
6402     fi
6403     mkdir "$destdir" || func_fatal_error "could not create destination directory"
6404     test -n "$auxdir" || auxdir="build-aux"
6405     func_create_megatestdir "$destdir" "$*"
6406     ;;
6407
6408   test )
6409     test -n "$destdir" || destdir=testdir$$
6410     mkdir "$destdir" || func_fatal_error "could not create destination directory"
6411     test -n "$auxdir" || auxdir="build-aux"
6412     func_create_testdir "$destdir" "$*"
6413     cd "$destdir"
6414       mkdir build
6415       cd build
6416         ../configure || func_exit 1
6417         $MAKE || func_exit 1
6418         $MAKE check || func_exit 1
6419         $MAKE distclean || func_exit 1
6420         remaining=`find . -type f -print`
6421         if test -n "$remaining"; then
6422           echo "Remaining files:" $remaining 1>&2
6423           echo "gnulib-tool: *** Stop." 1>&2
6424           func_exit 1
6425         fi
6426       cd ..
6427     cd ..
6428     rm -rf "$destdir"
6429     ;;
6430
6431   megatest )
6432     test -n "$destdir" || destdir=testdir$$
6433     mkdir "$destdir" || func_fatal_error "could not create destination directory"
6434     test -n "$auxdir" || auxdir="build-aux"
6435     func_create_megatestdir "$destdir" "$*"
6436     cd "$destdir"
6437       mkdir build
6438       cd build
6439         ../configure
6440         $MAKE
6441         $MAKE check
6442         $MAKE distclean
6443         remaining=`find . -type f -print`
6444         if test -n "$remaining"; then
6445           echo "Remaining files:" $remaining 1>&2
6446           echo "gnulib-tool: *** Stop." 1>&2
6447           func_exit 1
6448         fi
6449       cd ..
6450     cd ..
6451     rm -rf "$destdir"
6452     ;;
6453
6454   extract-description )
6455     for module
6456     do
6457       func_verify_module
6458       if test -n "$module"; then
6459         func_get_description "$module"
6460       fi
6461     done
6462     ;;
6463
6464   extract-comment )
6465     for module
6466     do
6467       func_verify_module
6468       if test -n "$module"; then
6469         func_get_comment "$module"
6470       fi
6471     done
6472     ;;
6473
6474   extract-status )
6475     for module
6476     do
6477       func_verify_module
6478       if test -n "$module"; then
6479         func_get_status "$module"
6480       fi
6481     done
6482     ;;
6483
6484   extract-notice )
6485     for module
6486     do
6487       func_verify_module
6488       if test -n "$module"; then
6489         func_get_notice "$module"
6490       fi
6491     done
6492     ;;
6493
6494   extract-applicability )
6495     for module
6496     do
6497       func_verify_module
6498       if test -n "$module"; then
6499         func_get_applicability "$module"
6500       fi
6501     done
6502     ;;
6503
6504   extract-filelist )
6505     for module
6506     do
6507       func_verify_module
6508       if test -n "$module"; then
6509         func_get_filelist "$module"
6510       fi
6511     done
6512     ;;
6513
6514   extract-dependencies )
6515     if test -n "$avoidlist"; then
6516       func_fatal_error "cannot combine --avoid and --extract-dependencies"
6517     fi
6518     for module
6519     do
6520       func_verify_module
6521       if test -n "$module"; then
6522         func_get_dependencies "$module"
6523       fi
6524     done
6525     ;;
6526
6527   extract-autoconf-snippet )
6528     for module
6529     do
6530       func_verify_module
6531       if test -n "$module"; then
6532         func_get_autoconf_snippet "$module"
6533       fi
6534     done
6535     ;;
6536
6537   extract-automake-snippet )
6538     for module
6539     do
6540       func_verify_module
6541       if test -n "$module"; then
6542         func_get_automake_snippet "$module"
6543       fi
6544     done
6545     ;;
6546
6547   extract-include-directive )
6548     for module
6549     do
6550       func_verify_module
6551       if test -n "$module"; then
6552         func_get_include_directive "$module"
6553       fi
6554     done
6555     ;;
6556
6557   extract-link-directive )
6558     for module
6559     do
6560       func_verify_module
6561       if test -n "$module"; then
6562         func_get_link_directive "$module"
6563       fi
6564     done
6565     ;;
6566
6567   extract-license )
6568     for module
6569     do
6570       func_verify_module
6571       if test -n "$module"; then
6572         func_get_license "$module"
6573       fi
6574     done
6575     ;;
6576
6577   extract-maintainer )
6578     for module
6579     do
6580       func_verify_module
6581       if test -n "$module"; then
6582         func_get_maintainer "$module"
6583       fi
6584     done
6585     ;;
6586
6587   extract-tests-module )
6588     for module
6589     do
6590       func_verify_module
6591       if test -n "$module"; then
6592         func_get_tests_module "$module"
6593       fi
6594     done
6595     ;;
6596
6597   copy-file )
6598     # Verify the number of arguments.
6599     if test $# -lt 1 || test $# -gt 2; then
6600       func_fatal_error "invalid number of arguments for --$mode"
6601     fi
6602
6603     # The first argument is the file to be copied.
6604     f="$1"
6605     # Verify the file exists.
6606     func_lookup_file "$f"
6607
6608     # The second argument is the destination; either a directory ot a file.
6609     # It defaults to the current directory.
6610     dest="$2"
6611     test -n "$dest" || dest='.'
6612     test -n "$sourcebase" || sourcebase="lib"
6613     test -n "$m4base" || m4base="m4"
6614     test -n "$docbase" || docbase="doc"
6615     test -n "$testsbase" || testsbase="tests"
6616     test -n "$auxdir" || auxdir="build-aux"
6617     rewritten='%REWRITTEN%'
6618     sed_rewrite_files="\
6619       s,^build-aux/,$rewritten$auxdir/,
6620       s,^doc/,$rewritten$docbase/,
6621       s,^lib/,$rewritten$sourcebase/,
6622       s,^m4/,$rewritten$m4base/,
6623       s,^tests/,$rewritten$testsbase/,
6624       s,^top/,$rewritten,
6625       s,^$rewritten,,"
6626     if test -d "$dest"; then
6627       destdir="$dest"
6628       g=`echo "$f" | sed -e "$sed_rewrite_files"`
6629     else
6630       destdir=`dirname "$dest"`
6631       g=`basename "$dest"`
6632     fi
6633
6634     # Create the directory for destfile.
6635     d=`dirname "$destdir/$g"`
6636     if $doit; then
6637       if test -n "$d" && test ! -d "$d"; then
6638         mkdir -p "$d" || func_fatal_error "failed"
6639       fi
6640     fi
6641     # Copy the file.
6642     func_dest_tmpfilename "$g"
6643     cp "$lookedup_file" "$tmpfile" || func_fatal_error "failed"
6644     already_present=true
6645     if test -f "$destdir/$g"; then
6646       # The file already exists.
6647       func_update_file
6648     else
6649       # Install the file.
6650       # Don't protest if the file should be there but isn't: it happens
6651       # frequently that developers don't put autogenerated files under version
6652       # control.
6653       func_add_file
6654     fi
6655     rm -f "$tmpfile"
6656     ;;
6657
6658   * )
6659     func_fatal_error "unknown operation mode --$mode" ;;
6660 esac
6661
6662 rm -rf "$tmp"
6663 # Undo the effect of the previous 'trap' command. Some shellology:
6664 # We cannot use "trap - 0 1 2 3 13 15", because Solaris sh would attempt to
6665 # execute the command "-". "trap '' ..." is fine only for signal 0 (= normal
6666 # exit); for the others we need to call 'exit' explicitly. The value of $? is
6667 # 128 + signal number and is set before the trap-registered command is run.
6668 trap '' 0
6669 trap 'func_exit $?' 1 2 3 13 15
6670
6671 exit 0
6672
6673 # Local Variables:
6674 # indent-tabs-mode: nil
6675 # whitespace-check-buffer-indent: nil
6676 # End: