commit 13fe6d1c466a7c73dea0c8019164d713c5d5d565
author Stefan Krah <skrah@bytereef.org> Thu Jan 17 12:49:34 2013 +0100
committer Stefan Krah <skrah@bytereef.org> Thu Jan 17 12:49:34 2013 +0100
tree c17f498204f8b825bacd8f7f67e6d75449c10db5
parent 897c3e994f7ae7a219c5956d304f75ba8dec1583

Fix build with 3.x gcc versions.

setup.py

diff --git a/setup.py b/setup.py
index 3bbd623..4d69326 100644
--- a/setup.py
+++ b/setup.py
@@ -1997,8 +1997,12 @@
 
         # Increase warning level for gcc:
         if 'gcc' in cc:
-            extra_compile_args.extend(['-Wextra',
-                                       '-Wno-missing-field-initializers'])
+            cmd = ("echo '' | gcc -Wextra -Wno-missing-field-initializers -E - "
+                   "> /dev/null 2>&1")
+            ret = os.system(cmd)
+            if ret >> 8 == 0:
+                extra_compile_args.extend(['-Wextra',
+                                           '-Wno-missing-field-initializers'])
 
         # Uncomment for extra functionality:
         #define_macros.append(('EXTRA_FUNCTIONALITY', 1))