asm_hidden_op
extra_parts
cpu_type
+tm_defines
+tm_file
tmake_file
sfp_machine_header
set_use_emutls
build_libsubdir
target_noncanonical
host_noncanonical
+AWK
+INSTALL_DATA
+INSTALL_SCRIPT
+INSTALL_PROGRAM
+MAINT
+slibdir
+PICFLAG
host_os
host_vendor
host_cpu
build_vendor
build_cpu
build
-AWK
-INSTALL_DATA
-INSTALL_SCRIPT
-INSTALL_PROGRAM
-MAINT
-slibdir
enable_shared
libgcc_topdir
target_alias
with_build_libsubdir
enable_decimal_float
with_system_libunwind
+enable_sjlj_exceptions
enable_tls
'
ac_precious_vars='build_alias
enable decimal float extension to C. Selecting 'bid'
or 'dpd' choses which decimal floating point format
to use
+ --enable-sjlj-exceptions
+ force use of builtin_setjmp for exceptions
--enable-tls Use thread-local storage [default=yes]
Optional Packages:
+# Make sure we can run config.sub.
+$SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
+ as_fn_error "cannot run $SHELL $ac_aux_dir/config.sub" "$LINENO" 5
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking build system type" >&5
+$as_echo_n "checking build system type... " >&6; }
+if test "${ac_cv_build+set}" = set; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_build_alias=$build_alias
+test "x$ac_build_alias" = x &&
+ ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"`
+test "x$ac_build_alias" = x &&
+ as_fn_error "cannot guess build type; you must specify one" "$LINENO" 5
+ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` ||
+ as_fn_error "$SHELL $ac_aux_dir/config.sub $ac_build_alias failed" "$LINENO" 5
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
+$as_echo "$ac_cv_build" >&6; }
+case $ac_cv_build in
+*-*-*) ;;
+*) as_fn_error "invalid value of canonical build" "$LINENO" 5;;
+esac
+build=$ac_cv_build
+ac_save_IFS=$IFS; IFS='-'
+set x $ac_cv_build
+shift
+build_cpu=$1
+build_vendor=$2
+shift; shift
+# Remember, the first character of IFS is used to create $*,
+# except with old shells:
+build_os=$*
+IFS=$ac_save_IFS
+case $build_os in *\ *) build_os=`echo "$build_os" | sed 's/ /-/g'`;; esac
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking host system type" >&5
+$as_echo_n "checking host system type... " >&6; }
+if test "${ac_cv_host+set}" = set; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test "x$host_alias" = x; then
+ ac_cv_host=$ac_cv_build
+else
+ ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` ||
+ as_fn_error "$SHELL $ac_aux_dir/config.sub $host_alias failed" "$LINENO" 5
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5
+$as_echo "$ac_cv_host" >&6; }
+case $ac_cv_host in
+*-*-*) ;;
+*) as_fn_error "invalid value of canonical host" "$LINENO" 5;;
+esac
+host=$ac_cv_host
+ac_save_IFS=$IFS; IFS='-'
+set x $ac_cv_host
+shift
+host_cpu=$1
+host_vendor=$2
+shift; shift
+# Remember, the first character of IFS is used to create $*,
+# except with old shells:
+host_os=$*
+IFS=$ac_save_IFS
+case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac
+
+
+
+
+
+
+case "${host}" in
+ # PIC is the default on some targets or must not be used.
+ *-*-darwin*)
+ # PIC is the default on this platform
+ # Common symbols not allowed in MH_DYLIB files
+ PICFLAG=-fno-common
+ ;;
+ alpha*-dec-osf5*)
+ # PIC is the default.
+ ;;
+ hppa*64*-*-hpux*)
+ # PIC is the default for 64-bit PA HP-UX.
+ ;;
+ i[34567]86-*-cygwin* | i[34567]86-*-mingw* | x86_64-*-mingw*)
+ ;;
+ i[34567]86-*-interix[3-9]*)
+ # Interix 3.x gcc -fpic/-fPIC options generate broken code.
+ # Instead, we relocate shared libraries at runtime.
+ ;;
+ i[34567]86-*-nto-qnx*)
+ # QNX uses GNU C++, but need to define -shared option too, otherwise
+ # it will coredump.
+ PICFLAG='-fPIC -shared'
+ ;;
+ i[34567]86-pc-msdosdjgpp*)
+ # DJGPP does not support shared libraries at all.
+ ;;
+ ia64*-*-hpux*)
+ # On IA64 HP-UX, PIC is the default but the pic flag
+ # sets the default TLS model and affects inlining.
+ PICFLAG=-fPIC
+ ;;
+ mips-sgi-irix6*)
+ # PIC is the default.
+ ;;
+ rs6000-ibm-aix* | powerpc-ibm-aix*)
+ # All AIX code is PIC.
+ ;;
+
+ # Some targets support both -fPIC and -fpic, but prefer the latter.
+ # FIXME: Why?
+ i[34567]86-*-* | x86_64-*-*)
+ PICFLAG=-fpic
+ ;;
+ m68k-*-*)
+ PICFLAG=-fpic
+ ;;
+ # FIXME: Override -fPIC default in libgcc only?
+ sh-*-linux* | sh[2346lbe]*-*-linux*)
+ PICFLAG=-fpic
+ ;;
+ # FIXME: Simplify to sh*-*-netbsd*?
+ sh-*-netbsdelf* | shl*-*-netbsdelf* | sh5-*-netbsd* | sh5l*-*-netbsd* | \
+ sh64-*-netbsd* | sh64l*-*-netbsd*)
+ PICFLAG=-fpic
+ ;;
+ # Default to -fPIC unless specified otherwise.
+ *)
+ PICFLAG=-fPIC
+ ;;
+esac
+
+# If the user explicitly uses -fpic/-fPIC, keep that.
+case "${CFLAGS}" in
+ *-fpic*)
+ PICFLAG=-fpic
+ ;;
+ *-fPIC*)
+ PICFLAG=-fPIC
+ ;;
+esac
+
+
+
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for --enable-version-specific-runtime-libs" >&5
$as_echo_n "checking for --enable-version-specific-runtime-libs... " >&6; }
# Check whether --enable-version-specific-runtime-libs was given.
"") as_fn_error "can't build without awk, bailing out" "$LINENO" 5 ;;
esac
-# Make sure we can run config.sub.
-$SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
- as_fn_error "cannot run $SHELL $ac_aux_dir/config.sub" "$LINENO" 5
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking build system type" >&5
-$as_echo_n "checking build system type... " >&6; }
-if test "${ac_cv_build+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- ac_build_alias=$build_alias
-test "x$ac_build_alias" = x &&
- ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"`
-test "x$ac_build_alias" = x &&
- as_fn_error "cannot guess build type; you must specify one" "$LINENO" 5
-ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` ||
- as_fn_error "$SHELL $ac_aux_dir/config.sub $ac_build_alias failed" "$LINENO" 5
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
-$as_echo "$ac_cv_build" >&6; }
-case $ac_cv_build in
-*-*-*) ;;
-*) as_fn_error "invalid value of canonical build" "$LINENO" 5;;
-esac
-build=$ac_cv_build
-ac_save_IFS=$IFS; IFS='-'
-set x $ac_cv_build
-shift
-build_cpu=$1
-build_vendor=$2
-shift; shift
-# Remember, the first character of IFS is used to create $*,
-# except with old shells:
-build_os=$*
-IFS=$ac_save_IFS
-case $build_os in *\ *) build_os=`echo "$build_os" | sed 's/ /-/g'`;; esac
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking host system type" >&5
-$as_echo_n "checking host system type... " >&6; }
-if test "${ac_cv_host+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- if test "x$host_alias" = x; then
- ac_cv_host=$ac_cv_build
-else
- ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` ||
- as_fn_error "$SHELL $ac_aux_dir/config.sub $host_alias failed" "$LINENO" 5
-fi
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5
-$as_echo "$ac_cv_host" >&6; }
-case $ac_cv_host in
-*-*-*) ;;
-*) as_fn_error "invalid value of canonical host" "$LINENO" 5;;
-esac
-host=$ac_cv_host
-ac_save_IFS=$IFS; IFS='-'
-set x $ac_cv_host
-shift
-host_cpu=$1
-host_vendor=$2
-shift; shift
-# Remember, the first character of IFS is used to create $*,
-# except with old shells:
-host_os=$*
-IFS=$ac_save_IFS
-case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac
-
case ${build_alias} in
"") build_noncanonical=${build} ;;
fi
+# The sjlj test is almost duplicated here and in libgo/configure.ac (for C),
+# libstdc++-v3/acinclude.m4 and libjava/configure.ac (for C++), and
+# libobjc/configure.ac (for Objective-C).
+# FIXME: This should be centralized in config/sjlj.m4.
+# Check whether --enable-sjlj-exceptions was given.
+if test "${enable_sjlj_exceptions+set}" = set; then :
+ enableval=$enable_sjlj_exceptions; case "$enableval" in
+ yes|no|auto) ;;
+ *) as_fn_error "unknown argument to --enable-sjlj-exceptions" "$LINENO" 5 ;;
+ esac
+else
+ enable_sjlj_exceptions=auto
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to use setjmp/longjmp exceptions" >&5
+$as_echo_n "checking whether to use setjmp/longjmp exceptions... " >&6; }
+if test "${libgcc_cv_lib_sjlj_exceptions+set}" = set; then :
+ $as_echo_n "(cached) " >&6
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+void bar ();
+void clean (int *);
+void foo ()
+{
+ int i __attribute__ ((cleanup (clean)));
+ bar();
+}
+
+_ACEOF
+CFLAGS_hold=$CFLAGS
+CFLAGS="--save-temps -fexceptions"
+libgcc_cv_lib_sjlj_exceptions=unknown
+if ac_fn_c_try_compile; then :
+ if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1; then
+ libgcc_cv_lib_sjlj_exceptions=yes
+ elif grep _Unwind_Resume conftest.s >/dev/null 2>&1; then
+ libgcc_cv_lib_sjlj_exceptions=no
+ fi
+fi
+CFLAGS=$CFLAGS_hold
+rm -f conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libgcc_cv_lib_sjlj_exceptions" >&5
+$as_echo "$libgcc_cv_lib_sjlj_exceptions" >&6; }
+
+if test "$enable_sjlj_exceptions" = "auto"; then
+ enable_sjlj_exceptions=$libgcc_cv_lib_sjlj_exceptions
+fi
+
+case $enable_sjlj_exceptions in
+yes)
+
+$as_echo "#define LIBGCC_SJLJ_EXCEPTIONS 1" >>confdefs.h
+
+ ;;
+no)
+ ;;
+*)
+ as_fn_error "unable to detect exception model" "$LINENO" 5
+ ;;
+esac
+
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5
$as_echo_n "checking if the linker ($LD) is GNU ld... " >&6; }
if test "${acl_cv_prog_gnu_ld+set}" = set; then :
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libgcc_cv_cfi" >&5
$as_echo "$libgcc_cv_cfi" >&6; }
-# Check 32bit or 64bit for x86.
-case ${host} in
-i?86*-*-* | x86_64*-*-*)
- cat > conftest.c <<EOF
-#ifdef __x86_64__
+# Check 32bit or 64bit
+cat > conftest.c <<EOF
+#if defined(__x86_64__) || (!defined(__i386__) && defined(__LP64__))
host_address=64
#else
host_address=32
#endif
EOF
- eval `${CC-cc} -E conftest.c | grep host_address=`
- rm -f conftest.c
- ;;
-esac
+eval `${CC-cc} -E conftest.c | grep host_address=`
+rm -f conftest.c
# Collect host-machine-specific information.
. ${srcdir}/config.host
tmake_file="${tmake_file_}"
+# Likewise export definitions for libgcc_tm.h
+tm_file_=
+for f in ${tm_file}
+do
+ tm_file_="${tm_file_} \$(srcdir)/config/$f"
+done
+tm_file="${tm_file_}"
+
+
+
+# Map from thread model to thread header.
+case $target_thread_file in
+ aix) thread_header=config/rs6000/gthr-aix.h ;;
+ dce) thread_header=config/pa/gthr-dce.h ;;
+ lynx) thread_header=config/gthr-lynx.h ;;
+ mipssde) thread_header=config/mips/gthr-mipssde.h ;;
+ posix) thread_header=gthr-posix.h ;;
+ rtems) thread_header=config/gthr-rtems.h ;;
+ single) thread_header=gthr-single.h ;;
+ tpf) thread_header=config/s390/gthr-tpf.h ;;
+ vxworks) thread_header=config/gthr-vxworks.h ;;
+ win32) thread_header=config/i386/gthr-win32.h ;;
+esac
+
# Substitute configuration variables
ac_config_links="$ac_config_links sfp-machine.h:config/$sfp_machine_header"
+ac_config_links="$ac_config_links gthr-default.h:$thread_header"
+
# We need multilib support.
ac_config_files="$ac_config_files Makefile"
"unwind.h") CONFIG_LINKS="$CONFIG_LINKS unwind.h:$unwind_header" ;;
"md-unwind-support.h") CONFIG_LINKS="$CONFIG_LINKS md-unwind-support.h:config/$md_unwind_header" ;;
"sfp-machine.h") CONFIG_LINKS="$CONFIG_LINKS sfp-machine.h:config/$sfp_machine_header" ;;
+ "gthr-default.h") CONFIG_LINKS="$CONFIG_LINKS gthr-default.h:$thread_header" ;;
"Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
"default") CONFIG_COMMANDS="$CONFIG_COMMANDS default" ;;
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