Use the C99 standard mode explicitly
Older versions of GCC default to c89 and we need the newer spec.
@@ -73,7 +73,7 @@ EXT_LDFLAGS = []
if platform.uname().system != 'Windows':
EXT_CFLAGS.extend([
- '-fsigned-char', '-Wall', '-Wsign-compare', '-Wconversion'
+ '-std=c99', '-fsigned-char', '-Wall', '-Wsign-compare', '-Wconversion'
])
