From 4dc09422dcd8b69ad8095bf664a7346291eb95b8 Mon Sep 17 00:00:00 2001
From: Siraaj Khandkar <siraaj@khandkar.net>
Date: Mon, 16 Mar 2020 16:25:47 -0400
Subject: [PATCH] Build as C99

---
 x5/Makefile | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/x5/Makefile b/x5/Makefile
index 59d115b..585ca12 100644
--- a/x5/Makefile
+++ b/x5/Makefile
@@ -1,5 +1,6 @@
-CFLAGS := -Wall -Wextra
-LDLIBS := -lX11
+CPPFLAGS := -D_POSIX_C_SOURCE=200809L
+CFLAGS   := -std=c99 -Wall -Wextra
+LDLIBS   := -lX11
 
 .PHONY: build clean rebuild
 
-- 
2.20.1