From 1f83e3d73ffcb5ed0d028f132337d8d86b8d0ead Mon Sep 17 00:00:00 2001
From: luckytyphlosion <10688458+luckytyphlosion@users.noreply.github.com>
Date: Mon, 25 Jan 2021 22:25:35 -0500
Subject: Fix builds on xcode 12+

Enforce the use of -Werror-implicit-function-declaration for all platforms to catch this. See: https://developer.apple.com/documentation/xcode-release-notes/xcode-12-release-notes
---
 gcc/Makefile | 2 +-
 gcc/toplev.c | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

(limited to 'gcc')

diff --git a/gcc/Makefile b/gcc/Makefile
index c30991a..9756e90 100644
--- a/gcc/Makefile
+++ b/gcc/Makefile
@@ -24,7 +24,7 @@ VPATH = $(srcdir)
 
 CC = gcc
 
-BASE_CFLAGS = -g -std=gnu11
+BASE_CFLAGS = -g -std=gnu11 -Werror-implicit-function-declaration
 
 INCLUDES = -I. -I$(srcdir)
 
diff --git a/gcc/toplev.c b/gcc/toplev.c
index 10d8508..e80ed20 100755
--- a/gcc/toplev.c
+++ b/gcc/toplev.c
@@ -40,6 +40,7 @@
 #include "except.h"
 #include "toplev.h"
 #include "expr.h"
+#include "unistd.h"
 
 #if defined (DWARF2_DEBUGGING_INFO)
 #include "dwarf2out.h"
-- 
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