From ae3c34084f2afe7332973ab20fcaf1a29264c078 Mon Sep 17 00:00:00 2001
From: Warren Melnick <warrenmelnick@gmail.com>
Date: Mon, 29 May 2017 10:42:37 -0400
Subject: [PATCH] Test for >= gcc 4, and  change to g99 -std=gnu99 for the
 compiler if it is found.

---
 Makefile | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Makefile b/Makefile
index 8a30613..7526a71 100644
--- a/Makefile
+++ b/Makefile
@@ -5,6 +5,10 @@ UNAME_S := $(shell uname -s)
 ifeq ($(UNAME_S),Darwin)
 	LIBS=
 endif
+GCCVERSIONGTEQ4 := $(shell expr `gcc -dumpversion | cut -f1 -d.` \>= 4)
+ifeq "$(GCCVERSIONGTEQ4)" "1"
+	CC=c99 --std=gnu99
+endif
 
 OBJS=main.o init.o actions1.o actions2.o score.o misc.o database.o
 SOURCES=$(OBJS:.o=.c) COPYING NEWS README TODO advent.text control
-- 
2.31.1