0b0dc2724a
2006-12-20 Adam Megacz <megacz@cs.berkeley.edu>
* configure.in: add AC_SUBST for *_FOR_TARGET.
* configure: Regenerate.
From-SVN: r120142
493 lines
16 KiB
Plaintext
493 lines
16 KiB
Plaintext
# Autoconf M4 include file defining utility macros for complex Canadian
|
|
# cross builds.
|
|
|
|
dnl ####
|
|
dnl # _GCC_TOPLEV_NONCANONICAL_BUILD
|
|
dnl # $build_alias or canonical $build if blank.
|
|
dnl # Used when we would use $build_alias, but empty is not OK.
|
|
AC_DEFUN([_GCC_TOPLEV_NONCANONICAL_BUILD],
|
|
[AC_REQUIRE([AC_CANONICAL_BUILD]) []dnl
|
|
case ${build_alias} in
|
|
"") build_noncanonical=${build} ;;
|
|
*) build_noncanonical=${build_alias} ;;
|
|
esac
|
|
]) []dnl # _GCC_TOPLEV_NONCANONICAL_BUILD
|
|
|
|
dnl ####
|
|
dnl # _GCC_TOPLEV_NONCANONICAL_HOST
|
|
dnl # $host_alias, or $build_noncanonical if blank.
|
|
dnl # Used when we would use $host_alias, but empty is not OK.
|
|
AC_DEFUN([_GCC_TOPLEV_NONCANONICAL_HOST],
|
|
[AC_REQUIRE([_GCC_TOPLEV_NONCANONICAL_BUILD]) []dnl
|
|
case ${host_alias} in
|
|
"") host_noncanonical=${build_noncanonical} ;;
|
|
*) host_noncanonical=${host_alias} ;;
|
|
esac
|
|
]) []dnl # _GCC_TOPLEV_NONCANONICAL_HOST
|
|
|
|
dnl ####
|
|
dnl # _GCC_TOPLEV_NONCANONICAL_TARGET
|
|
dnl # $target_alias or $host_noncanonical if blank.
|
|
dnl # Used when we would use $target_alias, but empty is not OK.
|
|
AC_DEFUN([_GCC_TOPLEV_NONCANONICAL_TARGET],
|
|
[AC_REQUIRE([_GCC_TOPLEV_NONCANONICAL_HOST]) []dnl
|
|
case ${target_alias} in
|
|
"") target_noncanonical=${host_noncanonical} ;;
|
|
*) target_noncanonical=${target_alias} ;;
|
|
esac
|
|
]) []dnl # _GCC_TOPLEV_NONCANONICAL_TARGET
|
|
|
|
dnl ####
|
|
dnl # ACX_NONCANONICAL_BUILD
|
|
dnl # Like underscored version, but AC_SUBST's.
|
|
AC_DEFUN([ACX_NONCANONICAL_BUILD],
|
|
[AC_REQUIRE([_GCC_TOPLEV_NONCANONICAL_BUILD]) []dnl
|
|
AC_SUBST(build_noncanonical)
|
|
]) []dnl # ACX_NONCANONICAL_BUILD
|
|
|
|
dnl ####
|
|
dnl # ACX_NONCANONICAL_HOST
|
|
dnl # Like underscored version, but AC_SUBST's.
|
|
AC_DEFUN([ACX_NONCANONICAL_HOST],
|
|
[AC_REQUIRE([_GCC_TOPLEV_NONCANONICAL_HOST]) []dnl
|
|
AC_SUBST(host_noncanonical)
|
|
]) []dnl # ACX_NONCANONICAL_HOST
|
|
|
|
dnl ####
|
|
dnl # ACX_NONCANONICAL_TARGET
|
|
dnl # Like underscored version, but AC_SUBST's.
|
|
AC_DEFUN([ACX_NONCANONICAL_TARGET],
|
|
[AC_REQUIRE([_GCC_TOPLEV_NONCANONICAL_TARGET]) []dnl
|
|
AC_SUBST(target_noncanonical)
|
|
]) []dnl # ACX_NONCANONICAL_TARGET
|
|
|
|
dnl ####
|
|
dnl # GCC_TOPLEV_SUBDIRS
|
|
dnl # GCC & friends build 'build', 'host', and 'target' tools. These must
|
|
dnl # be separated into three well-known subdirectories of the build directory:
|
|
dnl # build_subdir, host_subdir, and target_subdir. The values are determined
|
|
dnl # here so that they can (theoretically) be changed in the future. They
|
|
dnl # were previously reproduced across many different files.
|
|
dnl #
|
|
dnl # This logic really amounts to very little with autoconf 2.13; it will
|
|
dnl # amount to a lot more with autoconf 2.5x.
|
|
AC_DEFUN([GCC_TOPLEV_SUBDIRS],
|
|
[AC_REQUIRE([_GCC_TOPLEV_NONCANONICAL_TARGET]) []dnl
|
|
AC_REQUIRE([_GCC_TOPLEV_NONCANONICAL_BUILD]) []dnl
|
|
|
|
# post-stage1 host modules use a different CC_FOR_BUILD so, in order to
|
|
# have matching libraries, they should use host libraries: Makefile.tpl
|
|
# arranges to pass --with-build-libsubdir=$(HOST_SUBDIR).
|
|
# However, they still use the build modules, because the corresponding
|
|
# host modules (e.g. bison) are only built for the host when bootstrap
|
|
# finishes. So:
|
|
# - build_subdir is where we find build modules, and never changes.
|
|
# - build_libsubdir is where we find build libraries, and can be overridden.
|
|
|
|
# Prefix 'build-' so this never conflicts with target_subdir.
|
|
build_subdir="build-${build_noncanonical}"
|
|
AC_ARG_WITH(build-libsubdir,
|
|
[ --with-build-libsubdir=[DIR] Directory where to find libraries for build system],
|
|
build_libsubdir="$withval",
|
|
build_libsubdir="$build_subdir")
|
|
# --srcdir=. covers the toplevel, while "test -d" covers the subdirectories
|
|
if ( test $srcdir = . && test -d gcc ) \
|
|
|| test -d $srcdir/../host-${host_noncanonical}; then
|
|
host_subdir="host-${host_noncanonical}"
|
|
else
|
|
host_subdir=.
|
|
fi
|
|
# No prefix.
|
|
target_subdir=${target_noncanonical}
|
|
AC_SUBST([build_libsubdir]) []dnl
|
|
AC_SUBST([build_subdir]) []dnl
|
|
AC_SUBST([host_subdir]) []dnl
|
|
AC_SUBST([target_subdir]) []dnl
|
|
]) []dnl # GCC_TOPLEV_SUBDIRS
|
|
|
|
|
|
####
|
|
# _NCN_TOOL_PREFIXES: Some stuff that oughtta be done in AC_CANONICAL_SYSTEM
|
|
# or AC_INIT.
|
|
# These demand that AC_CANONICAL_SYSTEM be called beforehand.
|
|
AC_DEFUN([_NCN_TOOL_PREFIXES],
|
|
[ncn_tool_prefix=
|
|
test -n "$host_alias" && ncn_tool_prefix=$host_alias-
|
|
ncn_target_tool_prefix=
|
|
test -n "$target_alias" && ncn_target_tool_prefix=$target_alias-
|
|
]) []dnl # _NCN_TOOL_PREFIXES
|
|
|
|
####
|
|
# NCN_STRICT_CHECK_TOOLS(variable, progs-to-check-for,[value-if-not-found],[path])
|
|
# Like plain AC_CHECK_TOOLS, but require prefix if build!=host.
|
|
|
|
AC_DEFUN([NCN_STRICT_CHECK_TOOLS],
|
|
[AC_REQUIRE([_NCN_TOOL_PREFIXES]) []dnl
|
|
for ncn_progname in $2; do
|
|
if test -n "$ncn_tool_prefix"; then
|
|
AC_CHECK_PROG([$1], [${ncn_tool_prefix}${ncn_progname}],
|
|
[${ncn_tool_prefix}${ncn_progname}], , [$4])
|
|
fi
|
|
if test -z "$ac_cv_prog_$1" && test $build = $host ; then
|
|
AC_CHECK_PROG([$1], [${ncn_progname}], [${ncn_progname}], , [$4])
|
|
fi
|
|
test -n "$ac_cv_prog_$1" && break
|
|
done
|
|
|
|
if test -z "$ac_cv_prog_$1" ; then
|
|
ifelse([$3],[], [set dummy $2
|
|
if test $build = $host ; then
|
|
$1="[$]2"
|
|
else
|
|
$1="${ncn_tool_prefix}[$]2"
|
|
fi], [$1="$3"])
|
|
fi
|
|
]) []dnl # NCN_STRICT_CHECK_TOOLS
|
|
|
|
####
|
|
# NCN_STRICT_CHECK_TARGET_TOOLS(variable, progs-to-check-for,[value-if-not-found],[path])
|
|
# Like CVS Autoconf AC_CHECK_TARGET_TOOLS, but require prefix if build!=target.
|
|
|
|
AC_DEFUN([NCN_STRICT_CHECK_TARGET_TOOLS],
|
|
[AC_REQUIRE([_NCN_TOOL_PREFIXES]) []dnl
|
|
if test -n "$with_build_time_tools"; then
|
|
for ncn_progname in $2; do
|
|
AC_MSG_CHECKING([for ${ncn_progname} in $with_build_time_tools])
|
|
if test -x $with_build_time_tools/${ncn_progname}; then
|
|
ac_cv_prog_$1=$with_build_time_tools/${ncn_progname}
|
|
AC_MSG_RESULT(yes)
|
|
break
|
|
else
|
|
AC_MSG_RESULT(no)
|
|
fi
|
|
done
|
|
fi
|
|
|
|
if test -z "$ac_cv_prog_$1"; then
|
|
for ncn_progname in $2; do
|
|
if test -n "$ncn_target_tool_prefix"; then
|
|
AC_CHECK_PROG([$1], [${ncn_target_tool_prefix}${ncn_progname}],
|
|
[${ncn_target_tool_prefix}${ncn_progname}], , [$4])
|
|
fi
|
|
if test -z "$ac_cv_prog_$1" && test $build = $target ; then
|
|
AC_CHECK_PROG([$1], [${ncn_progname}], [${ncn_progname}], , [$4])
|
|
fi
|
|
test -n "$ac_cv_prog_$1" && break
|
|
done
|
|
fi
|
|
|
|
if test -z "$ac_cv_prog_$1" ; then
|
|
ifelse([$3],[], [set dummy $2
|
|
if test $build = $target ; then
|
|
$1="[$]2"
|
|
else
|
|
$1="${ncn_target_tool_prefix}[$]2"
|
|
fi], [$1="$3"])
|
|
fi
|
|
]) []dnl # NCN_STRICT_CHECK_TARGET_TOOLS
|
|
|
|
|
|
# Backported from Autoconf 2.5x; can go away when and if
|
|
# we switch. Put the OS path separator in $PATH_SEPARATOR.
|
|
AC_DEFUN([ACX_PATH_SEP], [
|
|
# The user is always right.
|
|
if test "${PATH_SEPARATOR+set}" != set; then
|
|
echo "#! /bin/sh" >conf$$.sh
|
|
echo "exit 0" >>conf$$.sh
|
|
chmod +x conf$$.sh
|
|
if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
|
|
PATH_SEPARATOR=';'
|
|
else
|
|
PATH_SEPARATOR=:
|
|
fi
|
|
rm -f conf$$.sh
|
|
fi
|
|
])
|
|
|
|
|
|
AC_DEFUN([ACX_TOOL_DIRS], [
|
|
AC_REQUIRE([ACX_PATH_SEP])
|
|
if test "x$exec_prefix" = xNONE; then
|
|
if test "x$prefix" = xNONE; then
|
|
gcc_cv_tool_prefix=$ac_default_prefix
|
|
else
|
|
gcc_cv_tool_prefix=$prefix
|
|
fi
|
|
else
|
|
gcc_cv_tool_prefix=$exec_prefix
|
|
fi
|
|
|
|
# If there is no compiler in the tree, use the PATH only. In any
|
|
# case, if there is no compiler in the tree nobody should use
|
|
# AS_FOR_TARGET and LD_FOR_TARGET.
|
|
if test x$host = x$build && test -f $srcdir/gcc/BASE-VER; then
|
|
gcc_version=`cat $srcdir/gcc/BASE-VER`
|
|
gcc_cv_tool_dirs="$gcc_cv_tool_prefix/libexec/gcc/$target_noncanonical/$gcc_version$PATH_SEPARATOR"
|
|
gcc_cv_tool_dirs="$gcc_cv_tool_dirs$gcc_cv_tool_prefix/libexec/gcc/$target_noncanonical$PATH_SEPARATOR"
|
|
gcc_cv_tool_dirs="$gcc_cv_tool_dirs/usr/lib/gcc/$target_noncanonical/$gcc_version$PATH_SEPARATOR"
|
|
gcc_cv_tool_dirs="$gcc_cv_tool_dirs/usr/lib/gcc/$target_noncanonical$PATH_SEPARATOR"
|
|
gcc_cv_tool_dirs="$gcc_cv_tool_dirs$gcc_cv_tool_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version$PATH_SEPARATOR"
|
|
gcc_cv_tool_dirs="$gcc_cv_tool_dirs$gcc_cv_tool_prefix/$target_noncanonical/bin$PATH_SEPARATOR"
|
|
else
|
|
gcc_cv_tool_dirs=
|
|
fi
|
|
|
|
if test x$build = x$target && test -n "$md_exec_prefix"; then
|
|
gcc_cv_tool_dirs="$gcc_cv_tool_dirs$md_exec_prefix$PATH_SEPARATOR"
|
|
fi
|
|
|
|
]) []dnl # ACX_TOOL_DIRS
|
|
|
|
# ACX_HAVE_GCC_FOR_TARGET
|
|
# Check if the variable GCC_FOR_TARGET really points to a GCC binary.
|
|
AC_DEFUN([ACX_HAVE_GCC_FOR_TARGET], [
|
|
cat > conftest.c << \EOF
|
|
#ifdef __GNUC__
|
|
gcc_yay;
|
|
#endif
|
|
EOF
|
|
if ($GCC_FOR_TARGET -E conftest.c | grep gcc_yay) > /dev/null 2>&1; then
|
|
have_gcc_for_target=yes
|
|
else
|
|
GCC_FOR_TARGET=${ncn_target_tool_prefix}gcc
|
|
have_gcc_for_target=no
|
|
fi
|
|
rm conftest.c
|
|
])
|
|
|
|
# ACX_CHECK_INSTALLED_TARGET_TOOL(VAR, PROG)
|
|
# Searching for installed target binutils. We need to take extra care,
|
|
# else we may find the wrong assembler, linker, etc., and lose.
|
|
#
|
|
# First try --with-build-time-tools, if specified.
|
|
#
|
|
# For build != host, we ask the installed GCC for the name of the tool it
|
|
# uses, and accept it if it is an absolute path. This is because the
|
|
# only good choice for a compiler is the same GCC version that is being
|
|
# installed (or we couldn't make target libraries), and we assume that
|
|
# on the host system we'll have not only the same GCC version, but also
|
|
# the same binutils version.
|
|
#
|
|
# For build == host, search the same directories that the installed
|
|
# compiler will search. We used to do this for the assembler, linker,
|
|
# and nm only; for simplicity of configuration, however, we extend this
|
|
# criterion to tools (such as ar and ranlib) that are never invoked by
|
|
# the compiler, to avoid mismatches.
|
|
#
|
|
# Also note we have to check MD_EXEC_PREFIX before checking the user's path
|
|
# if build == target. This makes the most sense only when bootstrapping,
|
|
# but we also do so when build != host. In this case, we hope that the
|
|
# build and host systems will have similar contents of MD_EXEC_PREFIX.
|
|
#
|
|
# If we do not find a suitable binary, then try the user's path.
|
|
|
|
AC_DEFUN([ACX_CHECK_INSTALLED_TARGET_TOOL], [
|
|
AC_REQUIRE([ACX_TOOL_DIRS])
|
|
AC_REQUIRE([ACX_HAVE_GCC_FOR_TARGET])
|
|
if test -z "$ac_cv_path_$1" ; then
|
|
if test -n "$with_build_time_tools"; then
|
|
AC_MSG_CHECKING([for $2 in $with_build_time_tools])
|
|
if test -x $with_build_time_tools/$2; then
|
|
$1=`cd $with_build_time_tools && pwd`/$2
|
|
ac_cv_path_$1=[$]$1
|
|
AC_MSG_RESULT([$ac_cv_path_$1])
|
|
else
|
|
AC_MSG_RESULT(no)
|
|
fi
|
|
elif test $build != $host && test $have_gcc_for_target = yes; then
|
|
$1=`$GCC_FOR_TARGET --print-prog-name=$2`
|
|
test [$]$1=$2 && $1=
|
|
ac_cv_path_$1=[$]$1
|
|
fi
|
|
fi
|
|
if test -z "$ac_cv_path_$1" ; then
|
|
AC_PATH_PROG([$1], [$2], [], [$gcc_cv_tool_dirs])
|
|
fi
|
|
if test -z "$ac_cv_path_$1" ; then
|
|
NCN_STRICT_CHECK_TARGET_TOOLS([$1], [$2])
|
|
else
|
|
$1=$ac_cv_path_$1
|
|
fi
|
|
]) []dnl # ACX_CHECK_INSTALLED_TARGET_TOOL
|
|
|
|
###
|
|
# AC_PROG_CPP_WERROR
|
|
# Used for autoconf 2.5x to force AC_PREPROC_IFELSE to reject code which
|
|
# triggers warnings from the preprocessor. Will be in autoconf 2.58.
|
|
# For now, using this also overrides header checks to use only the
|
|
# preprocessor (matches 2.13 behavior; matching 2.58's behavior is a
|
|
# bit harder from here).
|
|
# Eventually autoconf will default to checking headers with the compiler
|
|
# instead, and we'll have to do this differently.
|
|
|
|
AC_DEFUN([AC_PROG_CPP_WERROR],
|
|
[AC_REQUIRE([AC_PROG_CPP])dnl
|
|
m4_define([AC_CHECK_HEADER],m4_defn([_AC_CHECK_HEADER_OLD]))
|
|
ac_c_preproc_warn_flag=yes])# AC_PROG_CPP_WERROR
|
|
|
|
# Test for GNAT.
|
|
# We require the gnatbind program, and a compiler driver that
|
|
# understands Ada. We use the user's CC setting, already found.
|
|
#
|
|
# Sets the shell variable have_gnat to yes or no as appropriate, and
|
|
# substitutes GNATBIND.
|
|
AC_DEFUN([ACX_PROG_GNAT],
|
|
[AC_REQUIRE([AC_CHECK_TOOL_PREFIX])
|
|
AC_REQUIRE([AC_PROG_CC])
|
|
AC_CHECK_TOOL(GNATBIND, gnatbind, no)
|
|
AC_CACHE_CHECK([whether compiler driver understands Ada],
|
|
acx_cv_cc_gcc_supports_ada,
|
|
[cat >conftest.adb <<EOF
|
|
procedure conftest is begin null; end conftest;
|
|
EOF
|
|
acx_cv_cc_gcc_supports_ada=no
|
|
# There is a bug in old released versions of GCC which causes the
|
|
# driver to exit successfully when the appropriate language module
|
|
# has not been installed. This is fixed in 2.95.4, 3.0.2, and 3.1.
|
|
# Therefore we must check for the error message as well as an
|
|
# unsuccessful exit.
|
|
# Other compilers, like HP Tru64 UNIX cc, exit successfully when
|
|
# given a .adb file, but produce no object file. So we must check
|
|
# if an object file was really produced to guard against this.
|
|
errors=`(${CC} -c conftest.adb) 2>&1 || echo failure`
|
|
if test x"$errors" = x && test -f conftest.$ac_objext; then
|
|
acx_cv_cc_gcc_supports_ada=yes
|
|
fi
|
|
rm -f conftest.*])
|
|
|
|
if test x$GNATBIND != xno && test x$acx_cv_cc_gcc_supports_ada != xno; then
|
|
have_gnat=yes
|
|
else
|
|
have_gnat=no
|
|
fi
|
|
])
|
|
|
|
dnl 'make compare' can be significantly faster, if cmp itself can
|
|
dnl skip bytes instead of using tail. The test being performed is
|
|
dnl "if cmp --ignore-initial=2 t1 t2 && ! cmp --ignore-initial=1 t1 t2"
|
|
dnl but we need to sink errors and handle broken shells. We also test
|
|
dnl for the parameter format "cmp file1 file2 skip1 skip2" which is
|
|
dnl accepted by cmp on some systems.
|
|
AC_DEFUN([ACX_PROG_CMP_IGNORE_INITIAL],
|
|
[AC_CACHE_CHECK([how to compare bootstrapped objects], gcc_cv_prog_cmp_skip,
|
|
[ echo abfoo >t1
|
|
echo cdfoo >t2
|
|
gcc_cv_prog_cmp_skip='tail +16c $$f1 > tmp-foo1; tail +16c $$f2 > tmp-foo2; cmp tmp-foo1 tmp-foo2'
|
|
if cmp t1 t2 2 2 > /dev/null 2>&1; then
|
|
if cmp t1 t2 1 1 > /dev/null 2>&1; then
|
|
:
|
|
else
|
|
gcc_cv_prog_cmp_skip='cmp $$f1 $$f2 16 16'
|
|
fi
|
|
fi
|
|
if cmp --ignore-initial=2 t1 t2 > /dev/null 2>&1; then
|
|
if cmp --ignore-initial=1 t1 t2 > /dev/null 2>&1; then
|
|
:
|
|
else
|
|
gcc_cv_prog_cmp_skip='cmp --ignore-initial=16 $$f1 $$f2'
|
|
fi
|
|
fi
|
|
rm t1 t2
|
|
])
|
|
do_compare="$gcc_cv_prog_cmp_skip"
|
|
AC_SUBST(do_compare)
|
|
])
|
|
|
|
dnl See whether we can include both string.h and strings.h.
|
|
AC_DEFUN([ACX_HEADER_STRING],
|
|
[AC_CACHE_CHECK([whether string.h and strings.h may both be included],
|
|
gcc_cv_header_string,
|
|
[AC_TRY_COMPILE([#include <string.h>
|
|
#include <strings.h>], , gcc_cv_header_string=yes, gcc_cv_header_string=no)])
|
|
if test $gcc_cv_header_string = yes; then
|
|
AC_DEFINE(STRING_WITH_STRINGS, 1, [Define if you can safely include both <string.h> and <strings.h>.])
|
|
fi
|
|
])
|
|
|
|
dnl See if stdbool.h properly defines bool and true/false.
|
|
dnl Check whether _Bool is built-in.
|
|
AC_DEFUN([ACX_HEADER_STDBOOL],
|
|
[AC_CACHE_CHECK([for working stdbool.h],
|
|
ac_cv_header_stdbool_h,
|
|
[AC_TRY_COMPILE([#include <stdbool.h>],
|
|
[bool foo = false;],
|
|
ac_cv_header_stdbool_h=yes, ac_cv_header_stdbool_h=no)])
|
|
if test $ac_cv_header_stdbool_h = yes; then
|
|
AC_DEFINE(HAVE_STDBOOL_H, 1,
|
|
[Define if you have a working <stdbool.h> header file.])
|
|
fi
|
|
AC_CACHE_CHECK(for built-in _Bool, gcc_cv_c__bool,
|
|
[AC_TRY_COMPILE(,
|
|
[_Bool foo;],
|
|
gcc_cv_c__bool=yes, gcc_cv_c__bool=no)
|
|
])
|
|
if test $gcc_cv_c__bool = yes; then
|
|
AC_DEFINE(HAVE__BOOL, 1, [Define if the \`_Bool' type is built-in.])
|
|
fi
|
|
])
|
|
|
|
dnl See if hard links work and if not, try to substitute $1 or simple copy.
|
|
AC_DEFUN([ACX_PROG_LN],
|
|
[AC_MSG_CHECKING(whether ln works)
|
|
AC_CACHE_VAL(acx_cv_prog_LN,
|
|
[rm -f conftestdata_t
|
|
echo >conftestdata_f
|
|
if ln conftestdata_f conftestdata_t 2>/dev/null
|
|
then
|
|
acx_cv_prog_LN=ln
|
|
else
|
|
acx_cv_prog_LN=no
|
|
fi
|
|
rm -f conftestdata_f conftestdata_t
|
|
])dnl
|
|
if test $acx_cv_prog_LN = no; then
|
|
LN="ifelse([$1],,cp,[$1])"
|
|
AC_MSG_RESULT([no, using $LN])
|
|
else
|
|
LN="$acx_cv_prog_LN"
|
|
AC_MSG_RESULT(yes)
|
|
fi
|
|
AC_SUBST(LN)dnl
|
|
])
|
|
|
|
dnl GCC_TARGET_TOOL(PROGRAM, TARGET-VAR, HOST-VAR, IN-TREE-TOOL, LANGUAGE)
|
|
AC_DEFUN([GCC_TARGET_TOOL],
|
|
[AC_MSG_CHECKING(where to find the target $1)
|
|
if test "x${build}" != "x${host}" ; then
|
|
if expr "x[$]$2" : "x/" > /dev/null; then
|
|
# We already found the complete path
|
|
AC_MSG_RESULT(pre-installed in `dirname [$]$2`)
|
|
else
|
|
# Canadian cross, just use what we found
|
|
AC_MSG_RESULT(pre-installed)
|
|
fi
|
|
else
|
|
ifelse([$4],,,
|
|
[ok=yes
|
|
case " ${configdirs} " in
|
|
*" patsubst([$4], [/.*], []) "*) ;;
|
|
*) ok=no ;;
|
|
esac
|
|
ifelse([$5],,,
|
|
[case ,${enable_languages}, in
|
|
*,$5,*) ;;
|
|
*) ok=no ;;
|
|
esac])
|
|
if test $ok = yes; then
|
|
# An in-tree tool is available and we can use it
|
|
$2='$$r/$(HOST_SUBDIR)/$4'
|
|
AC_MSG_RESULT(just compiled)
|
|
el])if expr "x[$]$2" : "x/" > /dev/null; then
|
|
# We already found the complete path
|
|
AC_MSG_RESULT(pre-installed in `dirname [$]$2`)
|
|
elif test "x$target" = "x$host"; then
|
|
# We can use an host tool
|
|
$2='$($3)'
|
|
AC_MSG_RESULT(host tool)
|
|
else
|
|
# We need a cross tool
|
|
AC_MSG_RESULT(pre-installed)
|
|
fi
|
|
fi
|
|
AC_SUBST($2)])
|