build: ensure compiler flags are properly detected

While checking for compiler flag availability, treat warnings as errors. Thus if the compiler only warns about unsupported flag, it will fail the test and the flag shall be marked as unsupported. Signed-off-by: Uri Simchoni <[email protected]> Reviewed-by: Andrew Bartlett <[email protected]> Autobuild-User(master): Andrew Bartlett <[email protected]> Autobuild-Date(master): Wed Nov 22 14:19:20 CET 2017 on sn-devel-144
kenjiuno · Nov 22, 2017 · 667335a · 667335a
1 parent 2e53d6a
commit 667335a
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/buildtools/wafsamba/samba_autoconf.py b/buildtools/wafsamba/samba_autoconf.py
@@ -473,10 +473,13 @@ def CHECK_STRUCTURE_MEMBER(conf, structname, member,
 def CHECK_CFLAGS(conf, cflags, fragment='int main(void) { return 0; }\n'):
     '''check if the given cflags are accepted by the compiler
     '''
+    check_cflags = TO_LIST(cflags)
+    if 'WERROR_CFLAGS' in conf.env:
+        check_cflags.extend(conf.env['WERROR_CFLAGS'])
     return conf.check(fragment=fragment,
                       execute=0,
                       type='nolink',
-                      ccflags=cflags,
+                      ccflags=check_cflags,
                       msg="Checking compiler accepts %s" % cflags)
 
 @conf