From 45ab9f564637be08c83e84a243254118513b3968 Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Sun, 23 Jul 2023 22:26:14 +0200
Subject: [PATCH] Replace obsolete AC_PROG_CC_C99 with just AC_PROG_CC

No real changes, the macros are identical, but AC_PROG_CC_C99 warns
about it being obsolete.
---
 configure.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.in b/configure.in
index 1612210670..c075250d7f 100644
--- a/configure.in
+++ b/configure.in
@@ -2633,7 +2633,7 @@ if test "$wxUSE_EXPAT" != "no"; then
         dnl Expat requires C99 compiler, so define wxCFLAGS_C99 variable which
         dnl is used when compiling it in our makefiles.
         save_CC="$CC"
-        AC_PROG_CC_C99
+        AC_PROG_CC
         CC="$save_CC"
 
         dnl Note that we need just the flags, not the full CC value including