From a84dc2f7e64e70bd9696efe933671b2cbdfcd329 Mon Sep 17 00:00:00 2001
From: Michael J Gruber <git@grubix.eu>
Date: Sat, 26 Aug 2023 16:53:12 +0200
Subject: [PATCH] compat: probe for strcasestr more thoroughly

Depending on compiler (gcc, g++, clang) and standard options (c99, c11),
string.h may or may not include strings.h, leading to possibly missing
or conflicting declarations of strcasestr.

Include both so that both detection and compilation phases use the same
(possibly optimised) implementations.

Suggested-by: Thomas Schneider <qsx@chaotikum.eu>
Suggested-by: Florian Weimer <fweimer@redhat.com>
Suggested-by: Tomi Ollila <tomi.ollila@iki.fi>
---
 compat/have_strcasestr.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/compat/have_strcasestr.c b/compat/have_strcasestr.c
index 3cd1838d..8e004572 100644
--- a/compat/have_strcasestr.c
+++ b/compat/have_strcasestr.c
@@ -1,5 +1,6 @@
 #define _GNU_SOURCE
-#include <strings.h>
+#include <strings.h> /* strcasecmp() in POSIX */
+#include <string.h> /* strcasecmp() in *BSD */
 
 int
 main ()
-- 
2.43.0