diff options
Diffstat (limited to 'libgo/configure')
| -rw-r--r-- | libgo/configure | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/libgo/configure b/libgo/configure index dc5ad3fca97..ad4cc25810a 100644 --- a/libgo/configure +++ b/libgo/configure @@ -14099,6 +14099,34 @@ fi done +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for __sync_bool_compare_and_swap_4" >&5 +$as_echo_n "checking for __sync_bool_compare_and_swap_4... " >&6; } +if test "${libgo_cv_func___sync_bool_compare_and_swap_4+set}" = set; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +typedef unsigned int uint32 __attribute__ ((mode (SI))); +uint32 i; +int main() { return __sync_bool_compare_and_swap (&i, 0, 1); } + +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + libgo_cv_func___sync_bool_compare_and_swap_4=yes +else + libgo_cv_func___sync_bool_compare_and_swap_4=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libgo_cv_func___sync_bool_compare_and_swap_4" >&5 +$as_echo "$libgo_cv_func___sync_bool_compare_and_swap_4" >&6; } +if test "$libgo_cv_func___sync_bool_compare_and_swap_4" = "yes"; then + $as_echo "#define HAVE_SYNC_BOOL_COMPARE_AND_SWAP_4 1" >>confdefs.h + +fi + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -minline-all-stringops" >&5 $as_echo_n "checking whether compiler supports -minline-all-stringops... " >&6; } if test "${libgo_cv_c_stringops+set}" = set; then : |