From a2dbad461b8a63630f9ad7cfa36b6613e85a91cb Mon Sep 17 00:00:00 2001
From: Florian Weimer <fweimer@redhat.com>
Date: Sun, 5 Feb 2023 18:38:37 +0100
Subject: [PATCH] autoconf: Fix C99 compatibility issue in mc_GET_FS_INFO check
Content-type: text/plain

Include <fcntl.h> for the declaration of posix_fallocate.  This
avoids an implicit function declaration and build issues with future
compilers.

Signed-off-by: Florian Weimer <fweimer@redhat.com>
--- a/m4.include/mc-get-fs-info.m4
+++ b/m4.include/mc-get-fs-info.m4
@@ -8,6 +8,7 @@ AC_DEFUN([gl_POSIX_FALLOCATE], [
     AC_LINK_IFELSE([AC_LANG_PROGRAM([[
         #define _XOPEN_SOURCE 600
         #include <stdlib.h>
+        #include <fcntl.h>
         #if defined(__GLIBC__) && (__GLIBC__ < 2 || __GLIBC_MINOR__ < 7)
             possibly broken posix_fallocate
         #endif
-- 
2.39.1