From b7634ed3e4ddb8b6165e9814f0d3813ad2ee98af Mon Sep 17 00:00:00 2001
From: Michael Forney <mforney@mforney.org>
Date: Tue, 6 Oct 2020 15:31:54 -0700
Subject: [PATCH] configure.ac: Fix portability of test(1) expression for C99
 support

The == operator is non-standard, use = instead.

[ bvanassche: added "configure.ac: " prefix in front of patch subject ]
---
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index b2f3dd91db..4582fb5d09 100755
--- a/configure.ac
+++ b/configure.ac
@@ -115,7 +115,7 @@ rm $tmpfile
 
 # Make sure we can compile in C99 mode.
 AC_PROG_CC_C99
-if test "$ac_cv_prog_cc_c99" == "no"; then
+if test "$ac_cv_prog_cc_c99" = "no"; then
     AC_MSG_ERROR([Valgrind relies on a C compiler supporting C99])
 fi
 
-- 
2.47.2