From 2deac8fa0c95d5c07b344e1ee966ea818c0b578b Mon Sep 17 00:00:00 2001
From: Michael Forney <mforney@mforney.org>
Date: Sun, 24 Feb 2019 14:42:04 -0800
Subject: Define __GNUC__=4 and __STRICT_ANSI__ by default

We implement some GNU extensions that are used to implement certain libc
features, like INF, NAN, alloca, and offsetof.
---
 config.def.h | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/config.def.h b/config.def.h
index 8cf1d5f..d11364d 100644
--- a/config.def.h
+++ b/config.def.h
@@ -14,8 +14,11 @@ static char *endfiles[] = {
 static char *preprocesscmd[] = {
 		"cpp", "-P",
 
-		/* prevent libc from using GNU C extensions */
-		"-U", "__GNUC__",
+		/* specify the GNU C extensions we support */
+		"-U", "__GNUC__", "-D", "__GNUC__=4",
+
+		/* prevent glibc from using statement expressions for assert */
+		"-D", "__STRICT_ANSI__",
 
 		/* required for glibc headers */
 		"-D", "__restrict=restrict",
-- 
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