diff options
Diffstat (limited to 'configure.ac')
-rw-r--r-- | configure.ac | 47 |
1 files changed, 1 insertions, 46 deletions
diff --git a/configure.ac b/configure.ac index bb02ec3c..2e9a654f 100644 --- a/configure.ac +++ b/configure.ac @@ -111,52 +111,7 @@ AC_TRY_COMPILE([ ) # check for availability of atomic operations -# rgerhards, 2008-09-18, added based on -# http://svn.apache.org/repos/asf/apr/apr/trunk/configure.in - -AC_CACHE_CHECK([whether the compiler provides atomic builtins], [ap_cv_atomic_builtins], -[AC_TRY_RUN([ -int main() -{ - unsigned long val = 1010, tmp, *mem = &val; - - if (__sync_fetch_and_add(&val, 1010) != 1010 || val != 2020) - return 1; - - tmp = val; - - if (__sync_fetch_and_sub(mem, 1010) != tmp || val != 1010) - return 1; - - if (__sync_sub_and_fetch(&val, 1010) != 0 || val != 0) - return 1; - - tmp = 3030; - - if (__sync_val_compare_and_swap(mem, 0, tmp) != 0 || val != tmp) - return 1; - - if (__sync_lock_test_and_set(&val, 4040) != 3030) - return 1; - - mem = &tmp; - - if (__sync_val_compare_and_swap(&mem, &tmp, &val) != &tmp) - return 1; - - __sync_synchronize(); - - if (mem != &val) - return 1; - - return 0; -}], [ap_cv_atomic_builtins=yes], [ap_cv_atomic_builtins=no], [ap_cv_atomic_builtins=no])]) - -if test "$ap_cv_atomic_builtins" = "yes"; then - AC_DEFINE(HAVE_ATOMIC_BUILTINS, 1, [Define if compiler provides atomic builtins]) -fi - - +RS_ATOMIC_OPERATIONS # Additional module directories |