From ac87babe2d1652e3f37715efe9f29ad6f16eb9df Mon Sep 17 00:00:00 2001
From: "Richard W.M. Jones" <rjones@redhat.com>
Date: Mon, 4 Dec 2023 10:23:29 +0000
Subject: [PATCH] configure: Fix initialization from incompatible pointer type

With GCC 14:

  configure:20816: checking if environ is declared in header files
  configure:20833: gcc -c -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grec
ord-gcc-switches -pipe -Wall -Werror=format-security
-Werror=implicit-function-declaration -Werror=implicit-int
-Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS
-specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong
-specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64   -mtune=generic
-fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection
-fno-omit-frame-pointer -mno-omit-leaf-frame-pointer   conftest.c >&5
  conftest.c: In function 'test':
  conftest.c:62:22: error: initialization of 'const char **' from incompatible p
ointer type 'char **'
     62 |   const char **env = environ;
        |                      ^~~~~~~

Thanks: Florian Weimer
(cherry picked from commit 32a9ee6650654469cd591a3ae26842c54f898392)
---
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 3b12e357..beab4674 100644
--- a/configure.ac
+++ b/configure.ac
@@ -335,7 +335,7 @@ AC_LANG_SOURCE([[
 static int
 test (void)
 {
-  const char **env = environ;
+  char **env = environ;
   return env ? 1 : 0; // this just forces env to be used
 }
 ]])
-- 
2.39.3