sinclude(../config/tls.m4)
sinclude(../config/acx.m4)
sinclude(../config/no-executables.m4)
+sinclude(../config/override.m4)
-AC_PREREQ(2.59)
+AC_PREREQ(2.64)
AC_INIT([GNU C Runtime Library], 1.0,,[libgcc])
AC_CONFIG_SRCDIR([static-object.mk])
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
fixed_point=$libgcc_cv_fixed_point
AC_SUBST(fixed_point)
+# 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 ${host} in
+i?86-*-solaris2.1[[0-9]]*)
+ cat > conftest.s <<EOF
+ .section .eh_frame,"a",@unwind
+ .zero 4
+ .section .jcr,"aw",@progbits
+ .zero 8
+EOF
+ if AC_TRY_COMMAND(${CC-cc} -shared -nostartfiles -nodefaultlibs -o conftest.so conftest.s 1>&AS_MESSAGE_LOG_FD); then
+ # configure expects config files in libgcc/config, so need a relative
+ # path here.
+ tmake_file="${tmake_file} ../../gcc/config/i386/t-crtstuff"
+ fi
+ ;;
+esac
+
# Check for visibility support. This is after config.host so that
# we can check for asm_hidden_op.
AC_CACHE_CHECK([for __attribute__((visibility("hidden")))],
# is yet to be built here.
GCC_CHECK_CC_TLS
set_have_cc_tls=
-if test "$enable_tls $have_cc_tls" = "yes yes"; then
+if test "$enable_tls $gcc_cv_have_cc_tls" = "yes yes"; then
set_have_cc_tls="-DHAVE_CC_TLS"
fi
AC_SUBST(set_have_cc_tls)
+# See if we have emulated thread-local storage.
+GCC_CHECK_EMUTLS
+set_use_emutls=
+if test "$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}