From ff3eda68ceb2e2bb8f48e3faceb96076c3e85c20 Mon Sep 17 00:00:00 2001
From: Darren Tucker <dtucker@dtucker.net>
Date: Thu, 31 Aug 2023 23:02:35 +1000
Subject: [PATCH] Set LLONG_MAX for C89 test.

If we don't have LLONG_MAX, configure will figure out that it can get it
by setting -std=gnu99, at which point we won't be testing C89 any more.
To avoid this, feed it in via CFLAGS.
---
 .github/configs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/.github/configs b/.github/configs
index 66cb2d0e8..c7d6a55ab 100755
--- a/.github/configs
+++ b/.github/configs
@@ -30,6 +30,13 @@ case "$config" in
     default|sol64)
 	;;
     c89)
+	# If we don't have LLONG_MAX, configure will figure out that it can
+	# get it by setting -std=gnu99, at which point we won't be testing
+	# C89 any more.  To avoid this, feed it in via CFLAGS.
+	llong_max=`gcc -E -dM - </dev/null | \
+	    awk '$2=="__LONG_LONG_MAX__"{print $3}'`
+	CPPFLAGS="-DLLONG_MAX=${llong_max}"
+
 	CC="gcc"
 	CFLAGS="-Wall -std=c89 -pedantic -Werror=vla"
 	CONFIGFLAGS="--without-zlib"