configure.ac - toolchain/build - Git at Google

 #   Copyright (C) 2008 Google 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.
 #

 AC_INIT(android-tools,1.0)
 AC_PREREQ(2.59)

 AC_CONFIG_FILES([Makefile])

 AC_CANONICAL_SYSTEM

 # We only allow the following 3 targets:
 # 1. arm-android-eabi (primary target)
 # 2. arm-eabi (to be phased out.)
 # 3. arm-newlib-eabi (for gcc testing)
 # 4.i[3456]86-*-linux-gnu, x86-*-linux-gnu (for x86 targets)

 GDB_TARGET=$target
 case $target in
   arm-android-eabi | arm-unknown-eabi)
     BUILD_ANDROID_GCC=yes
     GDB_TARGET=arm-elf-linux
     ;;
   arm-newlib-elf)
     BUILD_ANDROID_GCC=no
     ;;
   i[[3456]]86-*-linux-gnu | x86_64-*-linux-gnu)
     BUILD_ANDROID_GCC=yes
     ;;
   *)
     AC_MSG_ERROR(Unsupported target $target.);
 esac
 AC_SUBST(BUILD_ANDROID_GCC)
 AC_SUBST(GDB_TARGET)
 AC_ARG_PROGRAM

 # TOPLEVEL_CONFIGURE_ARGUMENTS lifted from top-level configure.ac in gcc.

 # Export original configure arguments for use by sub-configures.
 # Quote arguments with shell meta charatcers.
 TOPLEVEL_CONFIGURE_ARGUMENTS=
 set -- "$progname" "$@"
 for ac_arg
 do
   case "$ac_arg" in
   *" "*|*"	"*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*)
     ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
     # if the argument is of the form -foo=baz, quote the baz part only
     ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
   *) ;;
   esac
   # Add the quoted argument to the list.
   TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
 done
 if test "$silent" = yes; then
   TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
 fi
 # Remove the initial space we just introduced and, as these will be
 # expanded by make, quote '$'.
 TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)

 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
 # target, nonopt, and variable assignments.  These are the ones we
 # might not want to pass down to subconfigures.  Also strip
 # program-prefix, program-suffix, and program-transform-name, so that
 # we can pass down a consistent program-transform-name.
 baseargs=
 keep_next=no
 skip_next=no
 eval "set -- $ac_configure_args"
 for ac_arg
 do
   if test X"$skip_next" = X"yes"; then
     skip_next=no
     continue
   fi
   if test X"$keep_next" = X"yes"; then
     case $ac_arg in
       *\'*)
 	ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
     esac
     baseargs="$baseargs '$ac_arg'"
     keep_next=no
     continue
   fi

   # Handle separated arguments.  Based on the logic generated by
   # autoconf 2.59.
   case $ac_arg in
     *=* | --config-cache | -C | -disable-* | --disable-* \
       | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
       | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
       | -with-* | --with-* | -without-* | --without-* | --x)
       separate_arg=no
       ;;
     -*)
       separate_arg=yes
       ;;
     *)
       separate_arg=no
       ;;
   esac

   case "$ac_arg" in
     --no*)
       continue
       ;;
     --c* | \
     --sr* | \
     --ho* | \
     --bu* | \
     --t* | \
     --program-* | \
     -cache_file* | \
     -srcdir* | \
     -host* | \
     -build* | \
     -target* | \
     -program-prefix* | \
     -program-suffix* | \
     -program-transform-name* )
       skip_next=$separate_arg
       continue
       ;;
     -*)
       # An option.  Add it.
       case $ac_arg in
 	*\'*)
 	  ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
       esac
       baseargs="$baseargs '$ac_arg'"
       keep_next=$separate_arg
       ;;
     *)
       # Either a variable assignment, or a nonopt (triplet).  Don't
       # pass it down; let the Makefile handle this.
       continue
       ;;
   esac
 done
 # Remove the initial space we just introduced and, as these will be
 # expanded by make, quote '$'.
 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`

 # Add in --program-transform-name, after --program-prefix and
 # --program-suffix have been applied to it.  Autoconf has already
 # doubled dollar signs and backslashes in program_transform_name; we want
 # the backslashes un-doubled, and then the entire thing wrapped in single
 # quotes, because this will be expanded first by make and then by the shell.
 # Also, because we want to override the logic in subdir configure scripts to
 # choose program_transform_name, replace any s,x,x, with s,y,y,.
 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
 ${program_transform_name}
 EOF_SED
 gcc_transform_name=`cat conftestsed.out`
 rm -f conftestsed.out
 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
 if test "$silent" = yes; then
   baseargs="$baseargs --silent"
 fi

 AC_SUBST(baseargs)

 #
 # Check for Canadian cross, which is not supported.
 #
 AC_MSG_CHECKING([for Canadian cross])
 if test $build != $host ; then
   AC_MSG_ERROR(Canadian cross build not supported.)
 fi
 AC_MSG_RESULT(no)

 # package to source path
 case $srcdir in
  /* | [A-Za-z]:*) package_to_srcdir=$srcdir ;;
  *) package_to_srcdir=../$srcdir ;;
 esac
 AC_SUBST(package_to_srcdir)
 #
 # Specify tool component versions
 #

 # macro to check that we have a package. A package x exists if any one
 # of the following exists (x is in the format of "tool-version"):
 # 1. tool/x
 # 2. tool/x.tar.gz
 # 3. tool/x.tgz
 # 4. tool/x.tar.bz2
 m4_pattern_allow([^AC_MSG_ERROR$])
 AC_DEFUN([ANDROID_CHECK_PACKAGE],
 [x=$1; tool=${x%-*}; \
 if test ! -d $srcdir/../$tool/$1 ; then
   if test -f $srcdir/../$tool/$1.tar ; then
     mkdir -p temp-src && tar -C temp-src -xf $srcdir/../$tool/$1.tar
   elif test -f $srcdir/../$tool/$1.tar.gz ; then
     mkdir -p temp-src && tar -C temp-src -xzf $srcdir/../$tool/$1.tar.gz
   elif test -f $srcdir/../$tool/$1.tgz ; then
     mkdir -p temp-src && tar -C temp-src -xzf $srcdir/../$tool/$1.tgz
   elif test -f $srcdir/../$tool/$1.tar.bz2 ; then
     mkdir -p temp-src && tar -C temp-src -xjf $srcdir/../$tool/$1.tar.bz2
   else
     AC_MSG_ERROR('package $1 does not exist.')
   fi
 fi ])

 # binutils version (default is 2.17)
 AC_MSG_CHECKING([target binutils version to build])
 AC_ARG_WITH([binutils-version],
   [  --with-binutils-version=VERSION
                           use binutils-VERSION (default is 2.17)],
   [if test x"$withval" != x ; then
      BINUTILS_VERSION="$withval"
    fi],
 [BINUTILS_VERSION="2.17"])
 AC_MSG_RESULT($BINUTILS_VERSION)
 AC_SUBST(BINUTILS_VERSION)
 ANDROID_CHECK_PACKAGE(binutils-${BINUTILS_VERSION})

 # gcc version (default is 4.2.1)
 AC_MSG_CHECKING([target gcc version to build])
 AC_ARG_WITH([gcc-version],
   [  --with-gcc-version=VERSION
                           use gcc-VERSION (default is 4.2.1)],
   [if test x"$withval" != x ; then
      GCC_VERSION="$withval"
    fi],
 [GCC_VERSION="4.2.1"])
 AC_MSG_RESULT($GCC_VERSION)
 AC_SUBST(GCC_VERSION)
 ANDROID_CHECK_PACKAGE(gcc-${GCC_VERSION})

 # figure out if we need to build gmp and mpfr for gcc 4.3.0+
 gcc_version_file="${srcdir}/gcc-${GCC_VERSION}/gcc/BASE-VER"
 if test -f "${gcc_version_file}"; then
   GCC_MAJOR=`head -n 1 $gcc_version_file | sed  -e "s/[[^0-9]].*//"`
   GCC_MINOR=`head -n 1 $gcc_version_file | \
 	    sed  -e "s/^[[0-9]]*\.//" -e "s/[[^0-9]].*//"`
   if test "$GCC_MAJOR" -gt 4 -o \
           \( "$GCC_MAJOR" -eq 4 -a "$GCC_MINOR" -ge 3 \) ; then
     GCC_MIN_VERSION_4_3_0="yes"
   else
     GCC_MIN_VERSION_4_3_0="no"
   fi
 else
   # No version file, assume it is trunk
   GCC_MIN_VERSION_4_3_0="yes"
 fi
 AC_SUBST(GCC_MIN_VERSION_4_3_0)

 # newlib version (default is 1.16.0)
 # newlib is only used for arm-newlib-eabi for testing
 if test x$target == xarm-newlib-elf ; then
 AC_MSG_CHECKING([target newlib version to build])
 AC_ARG_WITH([newlib-version],
   [  --with-newlib-version=VERSION
                           use newlib-VERSION (default is 1.16.0)],
   [if test x"$withval" != x ; then
      NEWLIB_VERSION="$withval"
    fi],
 [NEWLIB_VERSION="1.16.0"])
 AC_MSG_RESULT($NEWLIB_VERSION)
 AC_SUBST(NEWLIB_VERSION)
 ANDROID_CHECK_PACKAGE(newlib-${NEWLIB_VERSION})
 fi

 if test "$GCC_MIN_VERSION_4_3_0" == "yes"; then
 # gmp version (default is 4.2.2)
 # gmp is only used for gcc version higher than 4.3.0
 AC_MSG_CHECKING([gmp version])
 AC_ARG_WITH([gmp-version],
   [  --with-gmp-version=VERSION
                           use gmp-VERSION (default is 4.2.2)],
   [if test x"$withval" != x ; then
      GMP_VERSION="$withval"
    fi],
 [GMP_VERSION="4.2.2"])
 AC_MSG_RESULT($GMP_VERSION)
 ANDROID_CHECK_PACKAGE(gmp-${GMP_VERSION})

 # mpfr version (default is 2.3.0)
 # mpfr is only used for gcc version higher than 4.3.0
 AC_MSG_CHECKING([mpfr version])
 AC_ARG_WITH([mpfr-version],
   [  --with-mpfr-version=VERSION
                           use mpfr-VERSION (default is 2.3.0)],
   [if test x"$withval" != x ; then
      MPFR_VERSION="$withval"
    fi],
 [MPFR_VERSION="2.3.0"])
 AC_MSG_RESULT($MPFR_VERSION)
 ANDROID_CHECK_PACKAGE(mpfr-${MPFR_VERSION})

 fi
 AC_SUBST(GMP_VERSION)
 AC_SUBST(MPFR_VERSION)

 # gdb version (default is 6.6)
 AC_MSG_CHECKING([target gdb version to build])
 AC_ARG_WITH([gdb-version],
   [  --with-gdb-version=VERSION
                           use gdb-VERSION (default is 6.6)],
   [if test x"$withval" != x ; then
      GDB_VERSION="$withval"
    fi],
 [GDB_VERSION="6.6"])
 AC_MSG_RESULT($GDB_VERSION)
 AC_SUBST(GDB_VERSION)
 ANDROID_CHECK_PACKAGE(gdb-${GDB_VERSION})

 AC_OUTPUT
	# Copyright (C) 2008 Google 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.
	#

	AC_INIT(android-tools,1.0)
	AC_PREREQ(2.59)

	AC_CONFIG_FILES([Makefile])

	AC_CANONICAL_SYSTEM

	# We only allow the following 3 targets:
	# 1. arm-android-eabi (primary target)
	# 2. arm-eabi (to be phased out.)
	# 3. arm-newlib-eabi (for gcc testing)
	# 4.i[3456]86--linux-gnu, x86--linux-gnu (for x86 targets)

	GDB_TARGET=$target
	case $target in
	arm-android-eabi \| arm-unknown-eabi)
	BUILD_ANDROID_GCC=yes
	GDB_TARGET=arm-elf-linux
	;;
	arm-newlib-elf)
	BUILD_ANDROID_GCC=no
	;;
	i[[3456]]86--linux-gnu \| x86_64--linux-gnu)
	BUILD_ANDROID_GCC=yes
	;;
	*)
	AC_MSG_ERROR(Unsupported target $target.);
	esac
	AC_SUBST(BUILD_ANDROID_GCC)
	AC_SUBST(GDB_TARGET)
	AC_ARG_PROGRAM

	# TOPLEVEL_CONFIGURE_ARGUMENTS lifted from top-level configure.ac in gcc.

	# Export original configure arguments for use by sub-configures.
	# Quote arguments with shell meta charatcers.
	TOPLEVEL_CONFIGURE_ARGUMENTS=
	set -- "$progname" "$@"
	for ac_arg
	do
	case "$ac_arg" in
	" "\|" "\|[[\[\]\~\#\$\^\&\\(\)\{\}\\\\|\;\<\>\?\']]*)
	ac_arg=`echo "$ac_arg" \| sed "s/'/'\\\\\\\\''/g"`
	# if the argument is of the form -foo=baz, quote the baz part only
	ac_arg=`echo "'$ac_arg'" \| sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
	*) ;;
	esac
	# Add the quoted argument to the list.
	TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
	done
	if test "$silent" = yes; then
	TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
	fi
	# Remove the initial space we just introduced and, as these will be
	# expanded by make, quote '$'.
	TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" \| sed -e 's/^x *//' -e 's,\\$,$$,g'`
	AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)

	# Base args. Strip norecursion, cache-file, srcdir, host, build,
	# target, nonopt, and variable assignments. These are the ones we
	# might not want to pass down to subconfigures. Also strip
	# program-prefix, program-suffix, and program-transform-name, so that
	# we can pass down a consistent program-transform-name.
	baseargs=
	keep_next=no
	skip_next=no
	eval "set -- $ac_configure_args"
	for ac_arg
	do
	if test X"$skip_next" = X"yes"; then
	skip_next=no
	continue
	fi
	if test X"$keep_next" = X"yes"; then
	case $ac_arg in
	\')
	ac_arg=`echo "$ac_arg" \| sed "s/'/'\\\\\\\\''/g"` ;;
	esac
	baseargs="$baseargs '$ac_arg'"
	keep_next=no
	continue
	fi

	# Handle separated arguments. Based on the logic generated by
	# autoconf 2.59.
	case $ac_arg in
	= \| --config-cache \| -C \| -disable-* \| --disable-* \
	\| -enable-* \| --enable-* \| -gas \| --g* \| -nfp \| --nf* \
	\| -q \| -quiet \| --q* \| -silent \| --sil* \| -v \| -verb* \
	\| -with-* \| --with-* \| -without-* \| --without-* \| --x)
	separate_arg=no
	;;
	-*)
	separate_arg=yes
	;;
	*)
	separate_arg=no
	;;
	esac

	case "$ac_arg" in
	--no*)
	continue
	;;
	--c* \| \
	--sr* \| \
	--ho* \| \
	--bu* \| \
	--t* \| \
	--program-* \| \
	-cache_file* \| \
	-srcdir* \| \
	-host* \| \
	-build* \| \
	-target* \| \
	-program-prefix* \| \
	-program-suffix* \| \
	-program-transform-name* )
	skip_next=$separate_arg
	continue
	;;
	-*)
	# An option. Add it.
	case $ac_arg in
	\')
	ac_arg=`echo "$ac_arg" \| sed "s/'/'\\\\\\\\''/g"` ;;
	esac
	baseargs="$baseargs '$ac_arg'"
	keep_next=$separate_arg
	;;
	*)
	# Either a variable assignment, or a nonopt (triplet). Don't
	# pass it down; let the Makefile handle this.
	continue
	;;
	esac
	done
	# Remove the initial space we just introduced and, as these will be
	# expanded by make, quote '$'.
	baseargs=`echo "x$baseargs" \| sed -e 's/^x *//' -e 's,\\$,$$,g'`

	# Add in --program-transform-name, after --program-prefix and
	# --program-suffix have been applied to it. Autoconf has already
	# doubled dollar signs and backslashes in program_transform_name; we want
	# the backslashes un-doubled, and then the entire thing wrapped in single
	# quotes, because this will be expanded first by make and then by the shell.
	# Also, because we want to override the logic in subdir configure scripts to
	# choose program_transform_name, replace any s,x,x, with s,y,y,.
	sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
	${program_transform_name}
	EOF_SED
	gcc_transform_name=`cat conftestsed.out`
	rm -f conftestsed.out
	baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
	if test "$silent" = yes; then
	baseargs="$baseargs --silent"
	fi

	AC_SUBST(baseargs)

	#
	# Check for Canadian cross, which is not supported.
	#
	AC_MSG_CHECKING([for Canadian cross])
	if test $build != $host ; then
	AC_MSG_ERROR(Canadian cross build not supported.)
	fi
	AC_MSG_RESULT(no)

	# package to source path
	case $srcdir in
	/* \| [A-Za-z]:*) package_to_srcdir=$srcdir ;;
	*) package_to_srcdir=../$srcdir ;;
	esac
	AC_SUBST(package_to_srcdir)
	#
	# Specify tool component versions
	#

	# macro to check that we have a package. A package x exists if any one
	# of the following exists (x is in the format of "tool-version"):
	# 1. tool/x
	# 2. tool/x.tar.gz
	# 3. tool/x.tgz
	# 4. tool/x.tar.bz2
	m4_pattern_allow([^AC_MSG_ERROR$])
	AC_DEFUN([ANDROID_CHECK_PACKAGE],
	[x=$1; tool=${x%-*}; \
	if test ! -d $srcdir/../$tool/$1 ; then
	if test -f $srcdir/../$tool/$1.tar ; then
	mkdir -p temp-src && tar -C temp-src -xf $srcdir/../$tool/$1.tar
	elif test -f $srcdir/../$tool/$1.tar.gz ; then
	mkdir -p temp-src && tar -C temp-src -xzf $srcdir/../$tool/$1.tar.gz
	elif test -f $srcdir/../$tool/$1.tgz ; then
	mkdir -p temp-src && tar -C temp-src -xzf $srcdir/../$tool/$1.tgz
	elif test -f $srcdir/../$tool/$1.tar.bz2 ; then
	mkdir -p temp-src && tar -C temp-src -xjf $srcdir/../$tool/$1.tar.bz2
	else
	AC_MSG_ERROR('package $1 does not exist.')
	fi
	fi ])

	# binutils version (default is 2.17)
	AC_MSG_CHECKING([target binutils version to build])
	AC_ARG_WITH([binutils-version],
	[ --with-binutils-version=VERSION
	use binutils-VERSION (default is 2.17)],
	[if test x"$withval" != x ; then
	BINUTILS_VERSION="$withval"
	fi],
	[BINUTILS_VERSION="2.17"])
	AC_MSG_RESULT($BINUTILS_VERSION)
	AC_SUBST(BINUTILS_VERSION)
	ANDROID_CHECK_PACKAGE(binutils-${BINUTILS_VERSION})

	# gcc version (default is 4.2.1)
	AC_MSG_CHECKING([target gcc version to build])
	AC_ARG_WITH([gcc-version],
	[ --with-gcc-version=VERSION
	use gcc-VERSION (default is 4.2.1)],
	[if test x"$withval" != x ; then
	GCC_VERSION="$withval"
	fi],
	[GCC_VERSION="4.2.1"])
	AC_MSG_RESULT($GCC_VERSION)
	AC_SUBST(GCC_VERSION)
	ANDROID_CHECK_PACKAGE(gcc-${GCC_VERSION})

	# figure out if we need to build gmp and mpfr for gcc 4.3.0+
	gcc_version_file="${srcdir}/gcc-${GCC_VERSION}/gcc/BASE-VER"
	if test -f "${gcc_version_file}"; then
	GCC_MAJOR=`head -n 1 $gcc_version_file \| sed -e "s/[[^0-9]].*//"`
	GCC_MINOR=`head -n 1 $gcc_version_file \| \
	sed -e "s/^[[0-9]]\.//" -e "s/[[^0-9]].//"`
	if test "$GCC_MAJOR" -gt 4 -o \
	\( "$GCC_MAJOR" -eq 4 -a "$GCC_MINOR" -ge 3 \) ; then
	GCC_MIN_VERSION_4_3_0="yes"
	else
	GCC_MIN_VERSION_4_3_0="no"
	fi
	else
	# No version file, assume it is trunk
	GCC_MIN_VERSION_4_3_0="yes"
	fi
	AC_SUBST(GCC_MIN_VERSION_4_3_0)

	# newlib version (default is 1.16.0)
	# newlib is only used for arm-newlib-eabi for testing
	if test x$target == xarm-newlib-elf ; then
	AC_MSG_CHECKING([target newlib version to build])
	AC_ARG_WITH([newlib-version],
	[ --with-newlib-version=VERSION
	use newlib-VERSION (default is 1.16.0)],
	[if test x"$withval" != x ; then
	NEWLIB_VERSION="$withval"
	fi],
	[NEWLIB_VERSION="1.16.0"])
	AC_MSG_RESULT($NEWLIB_VERSION)
	AC_SUBST(NEWLIB_VERSION)
	ANDROID_CHECK_PACKAGE(newlib-${NEWLIB_VERSION})
	fi

	if test "$GCC_MIN_VERSION_4_3_0" == "yes"; then
	# gmp version (default is 4.2.2)
	# gmp is only used for gcc version higher than 4.3.0
	AC_MSG_CHECKING([gmp version])
	AC_ARG_WITH([gmp-version],
	[ --with-gmp-version=VERSION
	use gmp-VERSION (default is 4.2.2)],
	[if test x"$withval" != x ; then
	GMP_VERSION="$withval"
	fi],
	[GMP_VERSION="4.2.2"])
	AC_MSG_RESULT($GMP_VERSION)
	ANDROID_CHECK_PACKAGE(gmp-${GMP_VERSION})

	# mpfr version (default is 2.3.0)
	# mpfr is only used for gcc version higher than 4.3.0
	AC_MSG_CHECKING([mpfr version])
	AC_ARG_WITH([mpfr-version],
	[ --with-mpfr-version=VERSION
	use mpfr-VERSION (default is 2.3.0)],
	[if test x"$withval" != x ; then
	MPFR_VERSION="$withval"
	fi],
	[MPFR_VERSION="2.3.0"])
	AC_MSG_RESULT($MPFR_VERSION)
	ANDROID_CHECK_PACKAGE(mpfr-${MPFR_VERSION})

	fi
	AC_SUBST(GMP_VERSION)
	AC_SUBST(MPFR_VERSION)

	# gdb version (default is 6.6)
	AC_MSG_CHECKING([target gdb version to build])
	AC_ARG_WITH([gdb-version],
	[ --with-gdb-version=VERSION
	use gdb-VERSION (default is 6.6)],
	[if test x"$withval" != x ; then
	GDB_VERSION="$withval"
	fi],
	[GDB_VERSION="6.6"])
	AC_MSG_RESULT($GDB_VERSION)
	AC_SUBST(GDB_VERSION)
	ANDROID_CHECK_PACKAGE(gdb-${GDB_VERSION})

	AC_OUTPUT