enable_version_specific_runtime_libs
with_libffi
with_system_libunwind
+enable_sjlj_exceptions
'
ac_precious_vars='build_alias
host_alias
--enable-version-specific-runtime-libs
Specify that runtime libraries should be installed
in a compiler-specific directory
+ --enable-sjlj-exceptions
+ force use of builtin_setjmp for exceptions
Optional Packages:
--with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 10906 "configure"
+#line 10909 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 11012 "configure"
+#line 11015 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
fi
+# 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
+$as_echo_n "checking whether to use setjmp/longjmp exceptions... " >&6; }
+if test "${libgo_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=$CFLAGS
+CFLAGS="--save-temps -fexceptions"
+libgo_cv_lib_sjlj_exceptions=unknown
+if ac_fn_c_try_compile; then :
+ if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1; then
+ libgo_cv_lib_sjlj_exceptions=yes
+ elif grep _Unwind_Resume conftest.s >/dev/null 2>&1; then
+ libgo_cv_lib_sjlj_exceptions=no
+ fi
+fi
+CFLAGS=$CFLAGS_hold
+rm -f conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libgo_cv_lib_sjlj_exceptions" >&5
+$as_echo "$libgo_cv_lib_sjlj_exceptions" >&6; }
+
+if test "$enable_sjlj_exceptions" = "auto"; then
+ enable_sjlj_exceptions=$libgo_cv_lib_sjlj_exceptions
+fi
+
+case $enable_sjlj_exceptions in
+yes)
+
+$as_echo "#define LIBGO_SJLJ_EXCEPTIONS 1" >>confdefs.h
+
+ ;;
+no)
+ ;;
+*)
+ as_fn_error "unable to detect exception model" "$LINENO" 5
+ ;;
+esac
+
for ac_header in sys/mman.h syscall.h sys/epoll.h sys/ptrace.h sys/user.h sys/utsname.h
do :
as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`