configure: set HAVE___ATTRIBUTE__ for heimdal

Without this, heimdal ends up defining __attribute__ away, causing gcc-6 compile errors with -Werror=return-type because it can't tell when functions have __attribute__((noreturn)). Signed-off-by: Douglas Bagnall <[email protected]> Reviewed-by: Andrew Bartlett <[email protected]> Reviewed-by: Garming Sam <[email protected]> Autobuild-User(master): Andrew Bartlett <[email protected]> Autobuild-Date(master): Wed Mar 9 13:52:26 CET 2016 on sn-devel-144
darabosj · Mar 9, 2016 · 1c79654 · 1c79654
1 parent c1b68fa
commit 1c79654
Showing 1 changed file with 16 additions and 0 deletions.
diff --git a/buildtools/wafsamba/wscript b/buildtools/wafsamba/wscript
@@ -402,6 +402,22 @@ def configure(conf):
             addmain=False,
             msg='Checking for library destructor support')
 
+    conf.CHECK_CODE('''
+            void test_attribute(void) __attribute__ (());
+
+            void test_attribute(void)
+            {
+                return;
+            }
+
+            int main(void) {
+                return 0;
+            }
+            ''',
+            'HAVE___ATTRIBUTE__',
+            addmain=False,
+            msg='Checking for __attribute__')
+
     if sys.platform.startswith('aix'):
         conf.DEFINE('_ALL_SOURCE', 1, add_to_cflags=True)
         # Might not be needed if ALL_SOURCE is defined