dnl Process this file with autoconf to produce a configure script.
+sinclude(../config/enable.m4)
+sinclude(../config/tls.m4)
sinclude(../config/acx.m4)
sinclude(../config/no-executables.m4)
+sinclude(../config/lib-ld.m4)
+sinclude(../config/override.m4)
+sinclude(../config/dfp.m4)
-AC_PREREQ(2.59)
+AC_PREREQ(2.64)
AC_INIT([GNU C Runtime Library], 1.0,,[libgcc])
AC_CONFIG_SRCDIR([static-object.mk])
], [enable_shared=yes])
AC_SUBST(enable_shared)
+AC_MSG_CHECKING([for --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 ],
+[case "$enableval" in
+ yes) version_specific_libs=yes ;;
+ no) version_specific_libs=no ;;
+ *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);;
+ esac],
+[version_specific_libs=no])
+AC_MSG_RESULT($version_specific_libs)
+
AC_ARG_WITH(slibdir,
[ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
slibdir="$with_slibdir",
-if test "${enable_version_specific_runtime_libs+set}" = set; then
+if test "${version_specific_libs}" = yes; then
slibdir='$(libsubdir)'
-elif test "$host" != "$target"; then
- slibdir='$(build_tooldir)/lib'
+elif test -n "$with_cross_host" && test x"$with_cross_host" != x"no"; then
+ slibdir='$(exec_prefix)/$(host_noncanonical)/lib'
else
slibdir='$(libdir)'
fi)
AC_SUBST(slibdir)
+# Command-line options.
+# Very limited version of AC_MAINTAINER_MODE.
+AC_ARG_ENABLE([maintainer-mode],
+ [AC_HELP_STRING([--enable-maintainer-mode],
+ [enable make rules and dependencies not useful (and
+ sometimes confusing) to the casual installer])],
+ [case ${enable_maintainer_mode} in
+ yes) MAINT='' ;;
+ no) MAINT='#' ;;
+ *) AC_MSG_ERROR([--enable-maintainer-mode must be yes or no]) ;;
+ esac
+ maintainer_mode=${enableval}],
+ [MAINT='#'])
+AC_SUBST([MAINT])dnl
+
AC_PROG_INSTALL
AC_PROG_AWK
AC_CANONICAL_HOST
ACX_NONCANONICAL_HOST
+ACX_NONCANONICAL_TARGET
+GCC_TOPLEV_SUBDIRS
+
+# Calculate toolexeclibdir
+# Also toolexecdir, though it's only used in toolexeclibdir
+case ${version_specific_libs} in
+ yes)
+ # Need the gcc compiler version to know where to install libraries
+ # and header files if --enable-version-specific-runtime-libs option
+ # is selected.
+ toolexecdir='$(libdir)/gcc/$(target_noncanonical)'
+ toolexeclibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)'
+ ;;
+ no)
+ if test -n "$with_cross_host" &&
+ test x"$with_cross_host" != x"no"; then
+ # Install a library built with a cross compiler in tooldir, not libdir.
+ toolexecdir='$(exec_prefix)/$(target_noncanonical)'
+ toolexeclibdir='$(toolexecdir)/lib'
+ else
+ toolexecdir='$(libdir)/gcc-lib/$(target_noncanonical)'
+ toolexeclibdir='$(libdir)'
+ fi
+ multi_os_directory=`$CC -print-multi-os-directory`
+ case $multi_os_directory in
+ .) ;; # Avoid trailing /.
+ *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
+ esac
+ ;;
+esac
+AC_SUBST(toolexecdir)
+AC_SUBST(toolexeclibdir)
dnl These must be called before AM_PROG_LIBTOOL, because it may want
dnl to call AC_CHECK_PROG.
decimal_float=$libgcc_cv_dfp
AC_SUBST(decimal_float)
+GCC_AC_ENABLE_DECIMAL_FLOAT([$host])
+
+# Check for fixed-point support.
+AC_CACHE_CHECK([whether fixed-point is supported], [libgcc_cv_fixed_point],
+ [AC_COMPILE_IFELSE([_Sat _Fract x;], [libgcc_cv_fixed_point=yes],
+ [libgcc_cv_fixed_point=no])])
+fixed_point=$libgcc_cv_fixed_point
+AC_SUBST(fixed_point)
+
+AC_LIB_PROG_LD_GNU
+
+AC_MSG_CHECKING([for thread model used by GCC])
+target_thread_file=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'`
+AC_MSG_RESULT([$target_thread_file])
+
+# Check for assembler CFI support.
+AC_CACHE_CHECK([whether assembler supports CFI directives], [libgcc_cv_cfi],
+ [AC_COMPILE_IFELSE(
+[asm("\n\
+ .text\n\
+ .cfi_startproc\n\
+ .cfi_personality 0, symbol\n\
+ .cfi_endproc");],
+ [libgcc_cv_cfi=yes],
+ [libgcc_cv_cfi=no])])
+
+# Check 32bit or 64bit for x86.
+case ${host} in
+i?86*-*-* | x86_64*-*-*)
+ cat > conftest.c <<EOF
+#ifdef __x86_64__
+host_address=64
+#else
+host_address=32
+#endif
+EOF
+ eval `${CC-cc} -E conftest.c | grep host_address=`
+ rm -f conftest.c
+ ;;
+esac
+
# Collect host-machine-specific information.
. ${srcdir}/config.host
+# Check if Solaris/x86 linker supports ZERO terminator unwind entries.
+# This is after config.host so we can augment tmake_file.
+# Link with -nostartfiles -nodefaultlibs since neither are present while
+# building libgcc.
+case ${host} in
+i?86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
+ cat > conftest.s <<EOF
+ .section .eh_frame,"a",@unwind
+ .zero 4
+ .section .jcr,"aw",@progbits
+ .zero 8
+EOF
+ if AC_TRY_COMMAND(${CC-cc} -shared -nostartfiles -nodefaultlibs -o conftest.so conftest.s 1>&AS_MESSAGE_LOG_FD); then
+ tmake_file="${tmake_file} i386/t-crtstuff"
+ fi
+ ;;
+esac
+
# Check for visibility support. This is after config.host so that
# we can check for asm_hidden_op.
AC_CACHE_CHECK([for __attribute__((visibility("hidden")))],
fi
AC_SUBST(vis_hide)
+# See if we have thread-local storage. We can only test assembler
+# sicne link-time and run-time tests require the newly built
+# gcc, which can't be used to build executable due to that libgcc
+# is yet to be built here.
+GCC_CHECK_CC_TLS
+set_have_cc_tls=
+if test "$enable_tls $gcc_cv_have_cc_tls" = "yes yes"; then
+ set_have_cc_tls="-DHAVE_CC_TLS"
+fi
+AC_SUBST(set_have_cc_tls)
+
+# See if we have emulated thread-local storage.
+GCC_CHECK_EMUTLS
+set_use_emutls=
+if test "$enable_tls $gcc_cv_use_emutls" = "yes yes"; then
+ set_use_emutls="-DUSE_EMUTLS"
+fi
+AC_SUBST(set_use_emutls)
+
# Conditionalize the makefile for this target machine.
tmake_file_=
for f in ${tmake_file}
AC_SUBST(tmake_file)
# Substitute configuration variables
+AC_SUBST(cpu_type)
AC_SUBST(extra_parts)
AC_SUBST(asm_hidden_op)
+AC_CONFIG_LINKS([enable-execute-stack.c:$enable_execute_stack])
+AC_CONFIG_LINKS([md-unwind-support.h:config/$md_unwind_header])
# We need multilib support.
AC_CONFIG_FILES([Makefile])
fi]],
[[srcdir=${srcdir}
host=${host}
-target=${target}
with_target_subdir=${with_target_subdir}
with_multisubdir=${with_multisubdir}
ac_configure_args="--enable-multilib ${ac_configure_args}"
projects / gcc.git / blobdiff