From e3e3aa63d746f9187d5733bef627343771eb4a9d Mon Sep 17 00:00:00 2001
From: Kevin O'Connor <kevin@koconnor.net>
Date: Thu, 17 May 2018 12:17:43 -0400
Subject: [PATCH] build: Add gcc option -std=gnu11

Some older versions of gcc require this flag in order to compile the
code correctly.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 1a7038d4..8bdb534d 100644
--- a/Makefile
+++ b/Makefile
@@ -32,7 +32,7 @@ dirs-y = src
 cc-option=$(shell if test -z "`$(1) $(2) -S -o /dev/null -xc /dev/null 2>&1`" \
     ; then echo "$(2)"; else echo "$(3)"; fi ;)
 
-CFLAGS := -I$(OUT) -Isrc -I$(OUT)board-generic/ -O2 -MD -g \
+CFLAGS := -I$(OUT) -Isrc -I$(OUT)board-generic/ -std=gnu11 -O2 -MD -g \
     -Wall -Wold-style-definition $(call cc-option,$(CC),-Wtype-limits,) \
     -ffunction-sections -fdata-sections
 CFLAGS += -flto -fwhole-program -fno-use-linker-plugin