Separate macro file for atomic operations

To unclutter configure.ac and to make it easier re-usable, move the check
for atomic operations into a separate m4 macro file and call the macro
RS_ATOMIC_OPERATIONS (RS for RSyslog)

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