autogen.sh

   1 #!/bin/sh
   2 # Convenience script for regenerating all autogeneratable files that are
   3 # omitted from the version control repository. In particular, this script
   4 # also regenerates all aclocal.m4, config.h.in, Makefile.in, configure files
   5 # with new versions of autoconf or automake.
   6 #
   7 # This script requires autoconf-2.63..2.72 and automake-1.11..1.17 in the PATH.
   8 # It also requires
   9 #   - the gperf program.
  10
  11 # Copyright (C) 2003-2024 Free Software Foundation, Inc.
  12 #
  13 # This program is free software: you can redistribute it and/or modify
  14 # it under the terms of the GNU General Public License as published by
  15 # the Free Software Foundation; either version 3 of the License, or
  16 # (at your option) any later version.
  17 #
  18 # This program is distributed in the hope that it will be useful,
  19 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  20 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21 # GNU General Public License for more details.
  22 #
  23 # You should have received a copy of the GNU General Public License
  24 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  25
  26 # Prerequisite (if not used from a released tarball): either
  27 #   - the GNULIB_SRCDIR environment variable pointing to a gnulib checkout, or
  28 #   - a preceding invocation of './autopull.sh'.
  29 #
  30 # Usage: ./autogen.sh [--skip-gnulib]
  31 #
  32 # Options:
  33 #   --skip-gnulib       Avoid fetching files from Gnulib.
  34 #                       This option is useful
  35 #                       - when you are working from a released tarball (possibly
  36 #                         with modifications), or
  37 #                       - as a speedup, if the set of gnulib modules did not
  38 #                         change since the last time you ran this script.
  39
  40 skip_gnulib=false
  41 while :; do
  42   case "$1" in
  43     --skip-gnulib) skip_gnulib=true; shift;;
  44     *) break ;;
  45   esac
  46 done
  47
  48 # ========== Copy files from gnulib, automake, or the internet. ==========
  49
  50 # Find GNU Make.
  51 if test -n "${MAKE}" && test "`${MAKE} --version 2>/dev/null | sed -e 's/ [0-9].*//' -e 1q`" = 'GNU Make'; then
  52   GMAKE="${MAKE}"
  53 else
  54   if test "`make --version 2>/dev/null | sed -e 's/ [0-9].*//' -e 1q`" = 'GNU Make'; then
  55     GMAKE=make
  56   else
  57     if test "`gmake --version 2>/dev/null | sed -e 's/ [0-9].*//' -e 1q`" = 'GNU Make'; then
  58       GMAKE=gmake
  59     else
  60       echo "*** - GNU Make not found" 1>&2
  61       exit 1
  62     fi
  63   fi
  64 fi
  65
  66 if test $skip_gnulib = false; then
  67   if test -n "$GNULIB_SRCDIR"; then
  68     test -d "$GNULIB_SRCDIR" || {
  69       echo "*** GNULIB_SRCDIR is set but does not point to an existing directory." 1>&2
  70       exit 1
  71     }
  72   else
  73     GNULIB_SRCDIR=`pwd`/gnulib
  74     test -d "$GNULIB_SRCDIR" || {
  75       echo "*** Subdirectory 'gnulib' does not yet exist. Use './gitsub.sh pull' to create it, or set the environment variable GNULIB_SRCDIR." 1>&2
  76       exit 1
  77     }
  78   fi
  79   # Now it should contain a gnulib-tool.
  80   GNULIB_TOOL="$GNULIB_SRCDIR/gnulib-tool"
  81   test -f "$GNULIB_TOOL" || {
  82     echo "*** gnulib-tool not found." 1>&2
  83     exit 1
  84   }
  85   for file in build-aux/compile build-aux/ar-lib; do
  86     $GNULIB_TOOL --copy-file $file || exit $?
  87     chmod a+x $file || exit $?
  88   done
  89   $GMAKE -f Makefile.devel \
  90          gnulib-clean srclib/Makefile.gnulib gnulib-imported-files srclib/Makefile.in \
  91          GNULIB_TOOL="$GNULIB_TOOL"
  92 fi
  93
  94 # Copy files into the libcharset subpackage, so that libcharset/autogen.sh
  95 # does not need to invoke gnulib-tool nor automake.
  96 for file in INSTALL.generic; do
  97   cp -p $file libcharset/$file || exit $?
  98 done
  99 for file in config.guess config.libpath config.sub install-sh libtool-reloc mkinstalldirs; do
 100   cp -p build-aux/$file libcharset/build-aux/$file || exit $?
 101 done
 102 for file in \
 103   build-to-host.m4 \
 104   codeset.m4 \
 105   fcntl-o.m4 \
 106   host-cpu-c-abi.m4 \
 107   lib-ld.m4 \
 108   relocatable.m4 \
 109   relocatable-lib.m4 \
 110   visibility.m4 \
 111 ; do
 112   cp -p srcm4/$file libcharset/m4/$file || exit $?
 113 done
 114
 115 # ========== Generate files. ==========
 116
 117 $GMAKE -f Makefile.devel totally-clean all || exit $?
 118
 119 (cd libcharset
 120  ./autogen.sh || exit $?
 121 )
 122
 123 echo "$0: done.  Now you can run './configure'."