configure.in

#   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998,
#   1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
#
# This file is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

##############################################################################
### WARNING: this file contains embedded tabs.  Do not run untabify on this file.

AC_INIT(move-if-change)
AC_PREREQ(2.13)
AC_CANONICAL_SYSTEM
AC_ARG_PROGRAM

sinclude(config/acx.m4)

# clear some things potentially inherited from environment.

enable_threads=no
enable_shared=no
enable_libstdcxx_v3=yes
floating_point=default
gas=default
x11=default

### we might need to use some other shell than /bin/sh for running subshells
### If we are on Windows, search for the shell.  This will permit people
### to not have /bin/sh, but to be able to see /SOME/PATH/sh configure
### without also having to set CONFIG_SHELL.  This code will work when
### using bash, which sets OSTYPE.
case "${OSTYPE}" in
*win32*)
  if test x${CONFIG_SHELL} = x ; then
    if test ! -f /bin/sh ; then
      if test x${SHELL} != x && test -f ${SHELL} ; then
	CONFIG_SHELL=${SHELL}
	export CONFIG_SHELL
      else
	for prog in sh sh.exe bash bash.exe; do
	  IFS="${IFS=	}"; save_ifs="$IFS"; IFS="${IFS}:"
	  for dir in $PATH; do
	    test -z "$dir" && dir=.
	    if test -f $dir/$prog; then
	      CONFIG_SHELL=$dir/$prog
	      export CONFIG_SHELL
	      break
	    fi
	  done
	  IFS="$save_ifs"
	  test -n "${CONFIG_SHELL}" && break
	done
      fi
    fi
  fi
  ;;
esac

config_shell=${CONFIG_SHELL-/bin/sh}

## this is a little touchy and won't always work, but...
##
## if the argv[[0]] starts with a slash then it is an absolute name that can (and
## must) be used as is.
##
## otherwise, if argv[[0]] has no slash in it, we can assume that it is on the
## path.  Since PATH might include "." we also add `pwd` to the end of PATH.
##

progname=$0
# if PWD already has a value, it is probably wrong.
if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi

# Export original configure arguments for use by sub-configures.
TOPLEVEL_CONFIGURE_ARGUMENTS="$progname $@"
export TOPLEVEL_CONFIGURE_ARGUMENTS

moveifchange=${srcdir}/move-if-change

# Set srcdir to "." if that's what it is.
# This is important for multilib support.
pwd=`${PWDCMD-pwd}`
srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
if test "${pwd}" = "${srcpwd}" ; then
  srcdir=.
fi

topsrcdir=$srcpwd

extra_host_args=
# Define the trigger file to make sure configure will re-run whenever
# the gcc version number changes.
if test "${with_gcc_version_trigger+set}" = set ; then
  gcc_version_trigger="$with_gcc_version_trigger"
  gcc_version=`grep version_string ${with_gcc_version_trigger} | sed -e 's/.*\"\([[^ \"]]*\)[[ \"]].*/\1/'`
else
  # If gcc's sources are available, define the trigger file.
  if test -f ${topsrcdir}/gcc/version.c ; then
    gcc_version_trigger=${topsrcdir}/gcc/version.c
    gcc_version=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([[^ \"]]*\)[[ \"]].*/\1/'`
    case "$ac_configure_args" in
      *--with-gcc-version-trigger=$gcc_version_trigger* )
        ;;
      * )
        # Add to all subconfigure arguments: build, host, and target.
        ac_configure_args="$ac_configure_args --with-gcc-version-trigger=$gcc_version_trigger"
        ;;
    esac
  fi
fi

### To add a new directory to the tree, first choose whether it is a target
### or a host dependent tool.  Then put it into the appropriate list
### (library or tools, host or target), doing a dependency sort.

# Subdirs will be configured in the order listed in build_configdirs, 
# configdirs, or target_configdirs; see the serialization section below.

# Dependency sorting is only needed when *configuration* must be done in 
# a particular order.  In all cases a dependency should be specified in 
# the Makefile, whether or not it's implicitly specified here.

# Double entries in build_configdirs, configdirs, or target_configdirs may
# cause circular dependencies and break everything horribly.

# these libraries are used by various programs built for the host environment
#
host_libs="intl mmalloc libiberty opcodes bfd readline db tcl tk itcl tix libgui zlib"

libstdcxx_version="target-libstdc++-v3"

# these tools are built for the host environment
# Note, the powerpc-eabi build depends on sim occurring before gdb in order to
# know that we are building the simulator.
# binutils, gas and ld appear in that order because it makes sense to run
# "make check" in that particular order.
host_tools="texinfo byacc flex bison binutils gas ld gcc sid sim gdb make patch prms send-pr gprof etc expect dejagnu ash bash bzip2 m4 autoconf automake libtool grep diff rcs fileutils shellutils time textutils wdiff find uudecode hello tar gzip indent recode release sed utils guile perl gawk findutils snavigator gettext zip fastjar"

# libgcj represents the runtime libraries only used by gcj.
libgcj="target-libffi \
	target-boehm-gc \
	target-zlib \
	target-qthreads \
	target-libjava"

# these libraries are built for the target environment, and are built after
# the host libraries and the host tools (which may be a cross compiler)
#
target_libs="target-libiberty \
		target-libgloss \
		target-newlib \
		${libstdcxx_version} \
		target-libf2c \
		${libgcj}
		target-libobjc"

# these tools are built using the target libs, and are intended to run only
# in the target environment
#
# note: any program that *uses* libraries that are in the "target_libs"
# list belongs in this list.  those programs are also very likely
# candidates for the "native_only" list which follows
#
target_tools="target-examples target-groff target-gperf target-rda"

################################################################################

## All tools belong in one of the four categories, and are assigned above
## We assign ${configdirs} this way to remove all embedded newlines.  This
## is important because configure will choke if they ever get through.
## ${configdirs} is directories we build using the host tools.
## ${target_configdirs} is directories we build using the target tools.
#
configdirs=`echo ${host_libs} ${host_tools}`
target_configdirs=`echo ${target_libs} ${target_tools}`

################################################################################

srcname="gnu development package"

# This gets set non-empty for some net releases of packages.
appdirs=""

# Define is_cross_compiler to save on calls to 'test'.
is_cross_compiler=
if test x"${host}" = x"${target}" ; then
  is_cross_compiler=no
else
  is_cross_compiler=yes
fi