dnl Process this file with autoconf to produce a configure script.
|
dnl Process this file with autoconf to produce a configure script.
|
|
|
sinclude(../config/enable.m4)
|
sinclude(../config/enable.m4)
|
sinclude(../config/tls.m4)
|
sinclude(../config/tls.m4)
|
sinclude(../config/acx.m4)
|
sinclude(../config/acx.m4)
|
sinclude(../config/no-executables.m4)
|
sinclude(../config/no-executables.m4)
|
sinclude(../config/override.m4)
|
sinclude(../config/override.m4)
|
|
|
AC_PREREQ(2.64)
|
AC_PREREQ(2.64)
|
AC_INIT([GNU C Runtime Library], 1.0,,[libgcc])
|
AC_INIT([GNU C Runtime Library], 1.0,,[libgcc])
|
AC_CONFIG_SRCDIR([static-object.mk])
|
AC_CONFIG_SRCDIR([static-object.mk])
|
|
|
AC_ARG_WITH(target-subdir,
|
AC_ARG_WITH(target-subdir,
|
[ --with-target-subdir=SUBDIR Configuring in a subdirectory for target])
|
[ --with-target-subdir=SUBDIR Configuring in a subdirectory for target])
|
AC_ARG_WITH(cross-host,
|
AC_ARG_WITH(cross-host,
|
[ --with-cross-host=HOST Configuring with a cross compiler])
|
[ --with-cross-host=HOST Configuring with a cross compiler])
|
AC_ARG_WITH(ld,
|
AC_ARG_WITH(ld,
|
[ --with-ld arrange to use the specified ld (full pathname)])
|
[ --with-ld arrange to use the specified ld (full pathname)])
|
|
|
if test "${srcdir}" = "."; then
|
if test "${srcdir}" = "."; then
|
if test -n "${with_build_subdir}"; then
|
if test -n "${with_build_subdir}"; then
|
libgcc_topdir="${srcdir}/../.."
|
libgcc_topdir="${srcdir}/../.."
|
with_target_subdir=
|
with_target_subdir=
|
elif test -z "${with_target_subdir}"; then
|
elif test -z "${with_target_subdir}"; then
|
libgcc_topdir="${srcdir}/.."
|
libgcc_topdir="${srcdir}/.."
|
else
|
else
|
if test "${with_target_subdir}" != "."; then
|
if test "${with_target_subdir}" != "."; then
|
libgcc_topdir="${srcdir}/${with_multisrctop}../.."
|
libgcc_topdir="${srcdir}/${with_multisrctop}../.."
|
else
|
else
|
libgcc_topdir="${srcdir}/${with_multisrctop}.."
|
libgcc_topdir="${srcdir}/${with_multisrctop}.."
|
fi
|
fi
|
fi
|
fi
|
else
|
else
|
libgcc_topdir="${srcdir}/.."
|
libgcc_topdir="${srcdir}/.."
|
fi
|
fi
|
AC_SUBST(libgcc_topdir)
|
AC_SUBST(libgcc_topdir)
|
AC_CONFIG_AUX_DIR($libgcc_topdir)
|
AC_CONFIG_AUX_DIR($libgcc_topdir)
|
|
|
AC_ARG_ENABLE(shared,
|
AC_ARG_ENABLE(shared,
|
[ --disable-shared don't provide a shared libgcc],
|
[ --disable-shared don't provide a shared libgcc],
|
[
|
[
|
case $enable_shared in
|
case $enable_shared in
|
yes | no) ;;
|
yes | no) ;;
|
*)
|
*)
|
enable_shared=no
|
enable_shared=no
|
IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
|
IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
|
for pkg in $enableval; do
|
for pkg in $enableval; do
|
if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
|
if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
|
enable_shared=yes
|
enable_shared=yes
|
fi
|
fi
|
done
|
done
|
IFS="$ac_save_ifs"
|
IFS="$ac_save_ifs"
|
;;
|
;;
|
esac
|
esac
|
], [enable_shared=yes])
|
], [enable_shared=yes])
|
AC_SUBST(enable_shared)
|
AC_SUBST(enable_shared)
|
|
|
AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
|
AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
|
AC_ARG_ENABLE(version-specific-runtime-libs,
|
AC_ARG_ENABLE(version-specific-runtime-libs,
|
[ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ],
|
[ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ],
|
[case "$enableval" in
|
[case "$enableval" in
|
yes) version_specific_libs=yes ;;
|
yes) version_specific_libs=yes ;;
|
no) version_specific_libs=no ;;
|
no) version_specific_libs=no ;;
|
*) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);;
|
*) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);;
|
esac],
|
esac],
|
[version_specific_libs=no])
|
[version_specific_libs=no])
|
AC_MSG_RESULT($version_specific_libs)
|
AC_MSG_RESULT($version_specific_libs)
|
|
|
AC_ARG_WITH(slibdir,
|
AC_ARG_WITH(slibdir,
|
[ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
|
[ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
|
slibdir="$with_slibdir",
|
slibdir="$with_slibdir",
|
if test "${version_specific_libs}" = yes; then
|
if test "${version_specific_libs}" = yes; then
|
slibdir='$(libsubdir)'
|
slibdir='$(libsubdir)'
|
elif test -n "$with_cross_host" && test x"$with_cross_host" != x"no"; then
|
elif test -n "$with_cross_host" && test x"$with_cross_host" != x"no"; then
|
slibdir='$(exec_prefix)/$(host_noncanonical)/lib'
|
slibdir='$(exec_prefix)/$(host_noncanonical)/lib'
|
else
|
else
|
slibdir='$(libdir)'
|
slibdir='$(libdir)'
|
fi)
|
fi)
|
AC_SUBST(slibdir)
|
AC_SUBST(slibdir)
|
|
|
# Command-line options.
|
# Command-line options.
|
# Very limited version of AC_MAINTAINER_MODE.
|
# Very limited version of AC_MAINTAINER_MODE.
|
AC_ARG_ENABLE([maintainer-mode],
|
AC_ARG_ENABLE([maintainer-mode],
|
[AC_HELP_STRING([--enable-maintainer-mode],
|
[AC_HELP_STRING([--enable-maintainer-mode],
|
[enable make rules and dependencies not useful (and
|
[enable make rules and dependencies not useful (and
|
sometimes confusing) to the casual installer])],
|
sometimes confusing) to the casual installer])],
|
[case ${enable_maintainer_mode} in
|
[case ${enable_maintainer_mode} in
|
yes) MAINT='' ;;
|
yes) MAINT='' ;;
|
no) MAINT='#' ;;
|
no) MAINT='#' ;;
|
*) AC_MSG_ERROR([--enable-maintainer-mode must be yes or no]) ;;
|
*) AC_MSG_ERROR([--enable-maintainer-mode must be yes or no]) ;;
|
esac
|
esac
|
maintainer_mode=${enableval}],
|
maintainer_mode=${enableval}],
|
[MAINT='#'])
|
[MAINT='#'])
|
AC_SUBST([MAINT])dnl
|
AC_SUBST([MAINT])dnl
|
|
|
AC_PROG_INSTALL
|
AC_PROG_INSTALL
|
|
|
AC_PROG_AWK
|
AC_PROG_AWK
|
# We need awk; bail out if it's missing.
|
# We need awk; bail out if it's missing.
|
case ${AWK} in
|
case ${AWK} in
|
"") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
|
"") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
|
esac
|
esac
|
|
|
AC_CANONICAL_HOST
|
AC_CANONICAL_HOST
|
ACX_NONCANONICAL_HOST
|
ACX_NONCANONICAL_HOST
|
GCC_TOPLEV_SUBDIRS
|
GCC_TOPLEV_SUBDIRS
|
|
|
dnl These must be called before AM_PROG_LIBTOOL, because it may want
|
dnl These must be called before AM_PROG_LIBTOOL, because it may want
|
dnl to call AC_CHECK_PROG.
|
dnl to call AC_CHECK_PROG.
|
AC_CHECK_TOOL(AR, ar)
|
AC_CHECK_TOOL(AR, ar)
|
AC_CHECK_TOOL(LIPO, lipo, :)
|
AC_CHECK_TOOL(LIPO, lipo, :)
|
AC_CHECK_TOOL(NM, nm)
|
AC_CHECK_TOOL(NM, nm)
|
AC_CHECK_TOOL(RANLIB, ranlib, :)
|
AC_CHECK_TOOL(RANLIB, ranlib, :)
|
AC_CHECK_TOOL(STRIP, strip, :)
|
AC_CHECK_TOOL(STRIP, strip, :)
|
AC_PROG_LN_S
|
AC_PROG_LN_S
|
|
|
GCC_NO_EXECUTABLES
|
GCC_NO_EXECUTABLES
|
AC_PROG_CC
|
AC_PROG_CC
|
AC_PROG_CPP_WERROR
|
AC_PROG_CPP_WERROR
|
|
|
# Check for decimal float support.
|
# Check for decimal float support.
|
AC_CACHE_CHECK([whether decimal floating point is supported], [libgcc_cv_dfp],
|
AC_CACHE_CHECK([whether decimal floating point is supported], [libgcc_cv_dfp],
|
[AC_COMPILE_IFELSE([_Decimal32 x;], [libgcc_cv_dfp=yes],
|
[AC_COMPILE_IFELSE([_Decimal32 x;], [libgcc_cv_dfp=yes],
|
[libgcc_cv_dfp=no])])
|
[libgcc_cv_dfp=no])])
|
decimal_float=$libgcc_cv_dfp
|
decimal_float=$libgcc_cv_dfp
|
AC_SUBST(decimal_float)
|
AC_SUBST(decimal_float)
|
|
|
AC_ARG_ENABLE(decimal-float,
|
AC_ARG_ENABLE(decimal-float,
|
[ --enable-decimal-float={no,yes,bid,dpd}
|
[ --enable-decimal-float={no,yes,bid,dpd}
|
enable decimal float extension to C. Selecting 'bid'
|
enable decimal float extension to C. Selecting 'bid'
|
or 'dpd' choses which decimal floating point format
|
or 'dpd' choses which decimal floating point format
|
to use],
|
to use],
|
[
|
[
|
case $enable_decimal_float in
|
case $enable_decimal_float in
|
yes | no | bid | dpd) ;;
|
yes | no | bid | dpd) ;;
|
*) AC_MSG_ERROR(['$enable_decimal_float' is an invalid value for --enable-decimal-float.
|
*) AC_MSG_ERROR(['$enable_decimal_float' is an invalid value for --enable-decimal-float.
|
Valid choices are 'yes', 'bid', 'dpd', and 'no'.]) ;;
|
Valid choices are 'yes', 'bid', 'dpd', and 'no'.]) ;;
|
esac
|
esac
|
],
|
],
|
[
|
[
|
case $host in
|
case $host in
|
powerpc*-*-linux* | i?86*-*-linux* | x86_64*-*-linux*)
|
powerpc*-*-linux* | i?86*-*-linux* | x86_64*-*-linux*)
|
enable_decimal_float=yes
|
enable_decimal_float=yes
|
;;
|
;;
|
*)
|
*)
|
enable_decimal_float=no
|
enable_decimal_float=no
|
;;
|
;;
|
esac
|
esac
|
])
|
])
|
|
|
# x86's use BID format instead of DPD
|
# x86's use BID format instead of DPD
|
if test x$enable_decimal_float = xyes; then
|
if test x$enable_decimal_float = xyes; then
|
case $host in
|
case $host in
|
i?86*-*-linux* | x86_64*-*-linux*)
|
i?86*-*-linux* | x86_64*-*-linux*)
|
enable_decimal_float=bid
|
enable_decimal_float=bid
|
;;
|
;;
|
*)
|
*)
|
enable_decimal_float=dpd
|
enable_decimal_float=dpd
|
;;
|
;;
|
esac
|
esac
|
fi
|
fi
|
AC_SUBST(enable_decimal_float)
|
AC_SUBST(enable_decimal_float)
|
|
|
# Check for fixed-point support.
|
# Check for fixed-point support.
|
AC_CACHE_CHECK([whether fixed-point is supported], [libgcc_cv_fixed_point],
|
AC_CACHE_CHECK([whether fixed-point is supported], [libgcc_cv_fixed_point],
|
[AC_COMPILE_IFELSE([_Sat _Fract x;], [libgcc_cv_fixed_point=yes],
|
[AC_COMPILE_IFELSE([_Sat _Fract x;], [libgcc_cv_fixed_point=yes],
|
[libgcc_cv_fixed_point=no])])
|
[libgcc_cv_fixed_point=no])])
|
fixed_point=$libgcc_cv_fixed_point
|
fixed_point=$libgcc_cv_fixed_point
|
AC_SUBST(fixed_point)
|
AC_SUBST(fixed_point)
|
|
|
# Check 32bit or 64bit for x86.
|
# Check 32bit or 64bit for x86.
|
case ${host} in
|
case ${host} in
|
i?86*-*-* | x86_64*-*-*)
|
i?86*-*-* | x86_64*-*-*)
|
cat > conftest.c <
|
cat > conftest.c <
|
#ifdef __x86_64__
|
#ifdef __x86_64__
|
host_address=64
|
host_address=64
|
#else
|
#else
|
host_address=32
|
host_address=32
|
#endif
|
#endif
|
EOF
|
EOF
|
eval `${CC-cc} -E conftest.c | grep host_address=`
|
eval `${CC-cc} -E conftest.c | grep host_address=`
|
rm -f conftest.c
|
rm -f conftest.c
|
;;
|
;;
|
esac
|
esac
|
|
|
# Collect host-machine-specific information.
|
# Collect host-machine-specific information.
|
. ${srcdir}/config.host
|
. ${srcdir}/config.host
|
|
|
# Check if Solaris/x86 linker supports ZERO terminator unwind entries.
|
# Check if Solaris/x86 linker supports ZERO terminator unwind entries.
|
# This is after config.host so we can augment tmake_file.
|
# This is after config.host so we can augment tmake_file.
|
# Link with -nostartfiles -nodefaultlibs since neither are present while
|
# Link with -nostartfiles -nodefaultlibs since neither are present while
|
# building libgcc.
|
# building libgcc.
|
case ${host} in
|
case ${host} in
|
i?86-*-solaris2.1[[0-9]]*)
|
i?86-*-solaris2.1[[0-9]]*)
|
cat > conftest.s <
|
cat > conftest.s <
|
.section .eh_frame,"a",@unwind
|
.section .eh_frame,"a",@unwind
|
.zero 4
|
.zero 4
|
.section .jcr,"aw",@progbits
|
.section .jcr,"aw",@progbits
|
.zero 8
|
.zero 8
|
EOF
|
EOF
|
if AC_TRY_COMMAND(${CC-cc} -shared -nostartfiles -nodefaultlibs -o conftest.so conftest.s 1>&AS_MESSAGE_LOG_FD); then
|
if AC_TRY_COMMAND(${CC-cc} -shared -nostartfiles -nodefaultlibs -o conftest.so conftest.s 1>&AS_MESSAGE_LOG_FD); then
|
# configure expects config files in libgcc/config, so need a relative
|
# configure expects config files in libgcc/config, so need a relative
|
# path here.
|
# path here.
|
tmake_file="${tmake_file} ../../gcc/config/i386/t-crtstuff"
|
tmake_file="${tmake_file} ../../gcc/config/i386/t-crtstuff"
|
fi
|
fi
|
;;
|
;;
|
esac
|
esac
|
|
|
# Check for visibility support. This is after config.host so that
|
# Check for visibility support. This is after config.host so that
|
# we can check for asm_hidden_op.
|
# we can check for asm_hidden_op.
|
AC_CACHE_CHECK([for __attribute__((visibility("hidden")))],
|
AC_CACHE_CHECK([for __attribute__((visibility("hidden")))],
|
libgcc_cv_hidden_visibility_attribute, [
|
libgcc_cv_hidden_visibility_attribute, [
|
echo 'int __attribute__ ((visibility ("hidden"))) foo (void) { return 1; }' > conftest.c
|
echo 'int __attribute__ ((visibility ("hidden"))) foo (void) { return 1; }' > conftest.c
|
libgcc_cv_hidden_visibility_attribute=no
|
libgcc_cv_hidden_visibility_attribute=no
|
if AC_TRY_COMMAND(${CC-cc} -Werror -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD); then
|
if AC_TRY_COMMAND(${CC-cc} -Werror -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD); then
|
if grep "\\$asm_hidden_op.*foo" conftest.s >/dev/null; then
|
if grep "\\$asm_hidden_op.*foo" conftest.s >/dev/null; then
|
libgcc_cv_hidden_visibility_attribute=yes
|
libgcc_cv_hidden_visibility_attribute=yes
|
fi
|
fi
|
fi
|
fi
|
rm -f conftest.*
|
rm -f conftest.*
|
])
|
])
|
|
|
if test $libgcc_cv_hidden_visibility_attribute = yes; then
|
if test $libgcc_cv_hidden_visibility_attribute = yes; then
|
vis_hide='-fvisibility=hidden -DHIDE_EXPORTS'
|
vis_hide='-fvisibility=hidden -DHIDE_EXPORTS'
|
else
|
else
|
vis_hide=
|
vis_hide=
|
fi
|
fi
|
AC_SUBST(vis_hide)
|
AC_SUBST(vis_hide)
|
|
|
# See if we have thread-local storage. We can only test assembler
|
# See if we have thread-local storage. We can only test assembler
|
# sicne link-time and run-time tests require the newly built
|
# sicne link-time and run-time tests require the newly built
|
# gcc, which can't be used to build executable due to that libgcc
|
# gcc, which can't be used to build executable due to that libgcc
|
# is yet to be built here.
|
# is yet to be built here.
|
GCC_CHECK_CC_TLS
|
GCC_CHECK_CC_TLS
|
set_have_cc_tls=
|
set_have_cc_tls=
|
if test "$enable_tls $gcc_cv_have_cc_tls" = "yes yes"; then
|
if test "$enable_tls $gcc_cv_have_cc_tls" = "yes yes"; then
|
set_have_cc_tls="-DHAVE_CC_TLS"
|
set_have_cc_tls="-DHAVE_CC_TLS"
|
fi
|
fi
|
AC_SUBST(set_have_cc_tls)
|
AC_SUBST(set_have_cc_tls)
|
|
|
# See if we have emulated thread-local storage.
|
# See if we have emulated thread-local storage.
|
GCC_CHECK_EMUTLS
|
GCC_CHECK_EMUTLS
|
set_use_emutls=
|
set_use_emutls=
|
if test "$enable_tls $gcc_cv_use_emutls" = "yes yes"; then
|
if test "$enable_tls $gcc_cv_use_emutls" = "yes yes"; then
|
set_use_emutls="-DUSE_EMUTLS"
|
set_use_emutls="-DUSE_EMUTLS"
|
fi
|
fi
|
AC_SUBST(set_use_emutls)
|
AC_SUBST(set_use_emutls)
|
|
|
# Conditionalize the makefile for this target machine.
|
# Conditionalize the makefile for this target machine.
|
tmake_file_=
|
tmake_file_=
|
for f in ${tmake_file}
|
for f in ${tmake_file}
|
do
|
do
|
if test -f ${srcdir}/config/$f
|
if test -f ${srcdir}/config/$f
|
then
|
then
|
tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
|
tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
|
fi
|
fi
|
done
|
done
|
tmake_file="${tmake_file_}"
|
tmake_file="${tmake_file_}"
|
AC_SUBST(tmake_file)
|
AC_SUBST(tmake_file)
|
|
|
# Substitute configuration variables
|
# Substitute configuration variables
|
AC_SUBST(extra_parts)
|
AC_SUBST(extra_parts)
|
AC_SUBST(asm_hidden_op)
|
AC_SUBST(asm_hidden_op)
|
|
|
# We need multilib support.
|
# We need multilib support.
|
AC_CONFIG_FILES([Makefile])
|
AC_CONFIG_FILES([Makefile])
|
AC_CONFIG_COMMANDS([default],
|
AC_CONFIG_COMMANDS([default],
|
[[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
|
[[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
|
if test -n "$CONFIG_FILES"; then
|
if test -n "$CONFIG_FILES"; then
|
# FIXME: We shouldn't need to set ac_file
|
# FIXME: We shouldn't need to set ac_file
|
ac_file=Makefile
|
ac_file=Makefile
|
. ${libgcc_topdir}/config-ml.in
|
. ${libgcc_topdir}/config-ml.in
|
fi]],
|
fi]],
|
[[srcdir=${srcdir}
|
[[srcdir=${srcdir}
|
host=${host}
|
host=${host}
|
with_target_subdir=${with_target_subdir}
|
with_target_subdir=${with_target_subdir}
|
with_multisubdir=${with_multisubdir}
|
with_multisubdir=${with_multisubdir}
|
ac_configure_args="--enable-multilib ${ac_configure_args}"
|
ac_configure_args="--enable-multilib ${ac_configure_args}"
|
CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
|
CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
|
libgcc_topdir=${libgcc_topdir}
|
libgcc_topdir=${libgcc_topdir}
|
CC="${CC}"
|
CC="${CC}"
|
]])
|
]])
|
AC_OUTPUT
|
AC_OUTPUT
|
|
|
