From aff1b479c7b168652bd20305ceed4317d5db6661 Mon Sep 17 00:00:00 2001
From: Lasse Collin <lasse.collin@tukaani.org>
Date: Tue, 12 Sep 2023 20:55:10 +0300
Subject: [PATCH] lib/getopt*.c: Include <config.h> only HAVE_CONFIG_H is
 defined.

The CMake-based build doesn't use config.h.

Up-to-date getopt_long in Gnulib is LGPLv2 so at some
point it could be included in XZ Utils too but for now
this commit is enough to make CMake-based build possible.
---
 lib/getopt.c  | 4 +++-
 lib/getopt1.c | 4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/lib/getopt.c b/lib/getopt.c
index f8fc003d..36c28318 100644
--- a/lib/getopt.c
+++ b/lib/getopt.c
@@ -21,7 +21,9 @@
    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
 
 #ifndef _LIBC
-# include <config.h>
+# ifdef HAVE_CONFIG_H
+#  include <config.h>
+# endif
 #endif
 
 #include "getopt.h"
diff --git a/lib/getopt1.c b/lib/getopt1.c
index da5d5330..ebc46404 100644
--- a/lib/getopt1.c
+++ b/lib/getopt1.c
@@ -20,7 +20,9 @@
 #ifdef _LIBC
 # include <getopt.h>
 #else
-# include <config.h>
+# ifdef HAVE_CONFIG_H
+#  include <config.h>
+# endif
 # include "getopt.h"
 #endif
 #include "getopt_int.h"