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2007-01-04 Paolo Bonzini <bonzini@gnu.org> * configure.ac: Add GCC_TOPLEV_SUBDIRS. * configure: Regenerate. * Makefile.in (host_subdir): Substitute it. (gcc_objdir): Use it. From-SVN: r120449
159 lines
4.1 KiB
Plaintext
159 lines
4.1 KiB
Plaintext
dnl Process this file with autoconf to produce a configure script.
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sinclude(../config/acx.m4)
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sinclude(../config/no-executables.m4)
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AC_PREREQ(2.59)
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AC_INIT([GNU C Runtime Library], 1.0,,[libgcc])
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AC_CONFIG_SRCDIR([static-object.mk])
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AC_ARG_WITH(target-subdir,
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[ --with-target-subdir=SUBDIR Configuring in a subdirectory for target])
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AC_ARG_WITH(cross-host,
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[ --with-cross-host=HOST Configuring with a cross compiler])
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AC_ARG_WITH(ld,
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[ --with-ld arrange to use the specified ld (full pathname)])
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if test "${srcdir}" = "."; then
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if test -n "${with_build_subdir}"; then
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libgcc_topdir="${srcdir}/../.."
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with_target_subdir=
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elif test -z "${with_target_subdir}"; then
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libgcc_topdir="${srcdir}/.."
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else
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if test "${with_target_subdir}" != "."; then
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libgcc_topdir="${srcdir}/${with_multisrctop}../.."
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else
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libgcc_topdir="${srcdir}/${with_multisrctop}.."
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fi
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fi
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else
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libgcc_topdir="${srcdir}/.."
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fi
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AC_SUBST(libgcc_topdir)
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AC_CONFIG_AUX_DIR($libgcc_topdir)
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AC_ARG_ENABLE(shared,
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[ --disable-shared don't provide a shared libgcc],
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[
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case $enable_shared in
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yes | no) ;;
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*)
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enable_shared=no
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IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
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for pkg in $enableval; do
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if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
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enable_shared=yes
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fi
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done
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IFS="$ac_save_ifs"
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;;
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esac
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], [enable_shared=yes])
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AC_SUBST(enable_shared)
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AC_ARG_WITH(slibdir,
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[ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
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slibdir="$with_slibdir",
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if test "${enable_version_specific_runtime_libs+set}" = set; then
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slibdir='$(libsubdir)'
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elif test "$host" != "$target"; then
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slibdir='$(build_tooldir)/lib'
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else
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slibdir='$(libdir)'
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fi)
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AC_SUBST(slibdir)
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AC_PROG_INSTALL
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AC_PROG_AWK
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# We need awk; bail out if it's missing.
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case ${AWK} in
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"") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
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esac
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AC_CANONICAL_HOST
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ACX_NONCANONICAL_HOST
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GCC_TOPLEV_SUBDIRS
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dnl These must be called before AM_PROG_LIBTOOL, because it may want
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dnl to call AC_CHECK_PROG.
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AC_CHECK_TOOL(AR, ar)
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AC_CHECK_TOOL(LIPO, lipo, :)
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AC_CHECK_TOOL(NM, nm)
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AC_CHECK_TOOL(RANLIB, ranlib, :)
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AC_CHECK_TOOL(STRIP, strip, :)
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AC_PROG_LN_S
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GCC_NO_EXECUTABLES
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AC_PROG_CC
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AC_PROG_CPP_WERROR
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# Check for decimal float support.
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AC_CACHE_CHECK([whether decimal floating point is supported], [libgcc_cv_dfp],
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[AC_COMPILE_IFELSE([_Decimal32 x;], [libgcc_cv_dfp=yes],
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[libgcc_cv_dfp=no])])
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decimal_float=$libgcc_cv_dfp
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AC_SUBST(decimal_float)
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# Collect host-machine-specific information.
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. ${srcdir}/config.host
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# Check for visibility support. This is after config.host so that
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# we can check for asm_hidden_op.
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AC_CACHE_CHECK([for __attribute__((visibility("hidden")))],
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libgcc_cv_hidden_visibility_attribute, [
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echo 'int __attribute__ ((visibility ("hidden"))) foo (void) { return 1; }' > conftest.c
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libgcc_cv_hidden_visibility_attribute=no
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if AC_TRY_COMMAND(${CC-cc} -Werror -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD); then
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if grep "\\$asm_hidden_op.*foo" conftest.s >/dev/null; then
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libgcc_cv_hidden_visibility_attribute=yes
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fi
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fi
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rm -f conftest.*
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])
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if test $libgcc_cv_hidden_visibility_attribute = yes; then
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vis_hide='-fvisibility=hidden -DHIDE_EXPORTS'
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else
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vis_hide=
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fi
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AC_SUBST(vis_hide)
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# Conditionalize the makefile for this target machine.
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tmake_file_=
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for f in ${tmake_file}
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do
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if test -f ${srcdir}/config/$f
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then
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tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
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fi
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done
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tmake_file="${tmake_file_}"
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AC_SUBST(tmake_file)
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# Substitute configuration variables
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AC_SUBST(extra_parts)
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AC_SUBST(asm_hidden_op)
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# We need multilib support.
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AC_CONFIG_FILES([Makefile])
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AC_CONFIG_COMMANDS([default],
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[[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
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if test -n "$CONFIG_FILES"; then
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# FIXME: We shouldn't need to set ac_file
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ac_file=Makefile
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. ${libgcc_topdir}/config-ml.in
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fi]],
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[[srcdir=${srcdir}
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host=${host}
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target=${target}
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with_target_subdir=${with_target_subdir}
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with_multisubdir=${with_multisubdir}
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ac_configure_args="--enable-multilib ${ac_configure_args}"
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CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
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libgcc_topdir=${libgcc_topdir}
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CC="${CC}"
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]])
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AC_OUTPUT
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