config.mk: use -std=c99 - dmenu

commit c15a95a061bdb8235220b37638d1b586611f0ac6
parent cf0fb79cd8303f6d1089b7e919add4b0fc8d9069
Author: Hiltjo Posthuma <hiltjo@codemadness.org>
Date:   Mon, 28 Sep 2015 00:02:28 +0200

config.mk: use -std=c99

Diffstat:
M config.mk  | 2 +-

1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/config.mk b/config.mk
@@ -24,7 +24,7 @@ LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS} ${FREETYPELIBS}
 
 # flags
 CPPFLAGS = -D_BSD_SOURCE -D_XOPEN_SOURCE=700 -D_POSIX_C_SOURCE=200809L -DVERSION=\"${VERSION}\" ${XINERAMAFLAGS}
-CFLAGS   = -ansi -pedantic -Wall -Os ${INCS} ${CPPFLAGS}
+CFLAGS   = -std=c99 -pedantic -Wall -Os ${INCS} ${CPPFLAGS}
 LDFLAGS  = -s ${LIBS}
 
 # compiler and linker