| 1 | # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998,
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| 2 | # 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
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| 3 | #
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| 4 | # This file is free software; you can redistribute it and/or modify it
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| 5 | # under the terms of the GNU General Public License as published by
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| 6 | # the Free Software Foundation; either version 2 of the License, or
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| 7 | # (at your option) any later version.
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| 8 | #
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| 9 | # This program is distributed in the hope that it will be useful, but
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| 10 | # WITHOUT ANY WARRANTY; without even the implied warranty of
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| 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 12 | # General Public License for more details.
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| 13 | #
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| 14 | # You should have received a copy of the GNU General Public License
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| 15 | # along with this program; if not, write to the Free Software
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| 16 | # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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| 17 |
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| 18 | ##############################################################################
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| 19 | ### WARNING: this file contains embedded tabs. Do not run untabify on this file.
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| 20 |
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| 21 | AC_INIT(move-if-change)
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| 22 | AC_PREREQ(2.13)
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| 23 | AC_CANONICAL_SYSTEM
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| 24 | AC_ARG_PROGRAM
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| 25 |
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| 26 | sinclude(config/acx.m4)
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| 27 |
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| 28 | ### we might need to use some other shell than /bin/sh for running subshells
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| 29 | ### If we are on Windows, search for the shell. This will permit people
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| 30 | ### to not have /bin/sh, but to be able to see /SOME/PATH/sh configure
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| 31 | ### without also having to set CONFIG_SHELL. This code will work when
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| 32 | ### using bash, which sets OSTYPE.
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| 33 | case "${OSTYPE}" in
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| 34 | *win32*)
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| 35 | if test x${CONFIG_SHELL} = x ; then
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| 36 | if test ! -f /bin/sh ; then
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| 37 | if test x${SHELL} != x && test -f ${SHELL} ; then
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| 38 | CONFIG_SHELL=${SHELL}
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| 39 | export CONFIG_SHELL
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| 40 | else
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| 41 | for prog in sh sh.exe bash bash.exe; do
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| 42 | IFS="${IFS= }"; save_ifs="$IFS"; IFS="${IFS}:"
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| 43 | for dir in $PATH; do
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| 44 | test -z "$dir" && dir=.
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| 45 | if test -f $dir/$prog; then
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| 46 | CONFIG_SHELL=$dir/$prog
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| 47 | export CONFIG_SHELL
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| 48 | break
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| 49 | fi
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| 50 | done
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| 51 | IFS="$save_ifs"
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| 52 | test -n "${CONFIG_SHELL}" && break
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| 53 | done
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| 54 | fi
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| 55 | fi
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| 56 | fi
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| 57 | ;;
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| 58 | esac
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| 59 |
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| 60 | config_shell=${CONFIG_SHELL-/bin/sh}
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| 61 |
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| 62 | progname=$0
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| 63 | # if PWD already has a value, it is probably wrong.
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| 64 | if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
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| 65 |
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| 66 | # Export original configure arguments for use by sub-configures.
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| 67 | TOPLEVEL_CONFIGURE_ARGUMENTS="$progname $@"
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| 68 | AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
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| 69 |
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| 70 | moveifchange=${srcdir}/move-if-change
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| 71 |
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| 72 | # Set srcdir to "." if that's what it is.
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| 73 | # This is important for multilib support.
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| 74 | pwd=`${PWDCMD-pwd}`
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| 75 | srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
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| 76 | if test "${pwd}" = "${srcpwd}" ; then
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| 77 | srcdir=.
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| 78 | fi
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| 79 |
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| 80 | topsrcdir=$srcpwd
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| 81 |
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| 82 | extra_host_args=
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| 83 | # Define the trigger file to make sure configure will re-run whenever
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| 84 | # the gcc version number changes.
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| 85 | if test "${with_gcc_version_trigger+set}" = set ; then
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| 86 | gcc_version_trigger="$with_gcc_version_trigger"
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| 87 | gcc_version=`grep version_string ${with_gcc_version_trigger} | sed -e 's/.*\"\([[^ \"]]*\)[[ \"]].*/\1/'`
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| 88 | else
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| 89 | # If gcc's sources are available, define the trigger file.
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| 90 | if test -f ${topsrcdir}/gcc/version.c ; then
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| 91 | gcc_version_trigger=${topsrcdir}/gcc/version.c
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| 92 | gcc_version=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([[^ \"]]*\)[[ \"]].*/\1/'`
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| 93 | case "$ac_configure_args" in
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| 94 | *--with-gcc-version-trigger=$gcc_version_trigger* )
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| 95 | ;;
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| 96 | * )
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| 97 | # Add to all subconfigure arguments: build, host, and target.
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| 98 | ac_configure_args="$ac_configure_args --with-gcc-version-trigger=$gcc_version_trigger"
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| 99 | ;;
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| 100 | esac
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| 101 | fi
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| 102 | fi
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| 103 |
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| 104 | ### To add a new directory to the tree, first choose whether it is a target
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| 105 | ### or a host dependent tool. Then put it into the appropriate list
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| 106 | ### (library or tools, host or target), doing a dependency sort.
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| 107 |
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| 108 | # Subdirs will be configured in the order listed in build_configdirs,
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| 109 | # configdirs, or target_configdirs; see the serialization section below.
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| 110 |
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| 111 | # Dependency sorting is only needed when *configuration* must be done in
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| 112 | # a particular order. In all cases a dependency should be specified in
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| 113 | # the Makefile, whether or not it's implicitly specified here.
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| 114 |
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| 115 | # Double entries in build_configdirs, configdirs, or target_configdirs may
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| 116 | # cause circular dependencies and break everything horribly.
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| 117 |
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