package/heimdal: Fix build with autoconf-2.72

Fixes:
http://autobuild.buildroot.net/results/175/175fb65f0151866cd2d83c91c23b453d8c4489f7/
https://bugs.busybox.net/show_bug.cgi?id=15991

Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit a79d0b467f60e7d198c25549166a1383bb978392)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/heimdal/0002-cf-largefile.m4-Fix-build-with-autoconf-2.72.patch

@@ -0,0 +1,27 @@
+From 1b57b62d82a478c1fade350f0fb1d57031a8734e Mon Sep 17 00:00:00 2001
+From: Bernd Kuhls <bernd@kuhls.net>
+Date: Sat, 10 Feb 2024 09:33:48 +0100
+Subject: [PATCH] cf/largefile.m4: Fix build with autoconf-2.72
+
+Fixes https://github.com/heimdal/heimdal/issues/1201
+
+Upstream: https://github.com/heimdal/heimdal/commit/1b57b62d82a478c1fade350f0fb1d57031a8734e
+
+Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
+---
+ cf/largefile.m4 | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/cf/largefile.m4 b/cf/largefile.m4
+index 5c54897be4..cdbbc55431 100644
+--- a/cf/largefile.m4
++++ b/cf/largefile.m4
+@@ -10,7 +10,7 @@ dnl with generated code, such as lex
+ if test "$enable_largefile" != no -a "$ac_cv_sys_large_files" != no; then
+ 	CPPFLAGS="$CPPFLAGS -D_LARGE_FILES=$ac_cv_sys_large_files"
+ fi
+-if test "$enable_largefile" != no -a "$ac_cv_sys_file_offset_bits" != no; then
++if test "$enable_largefile" != no -a "$ac_cv_sys_file_offset_bits" != no && test -n "$ac_cv_sys_file_offset_bits"; then
+ 	CPPFLAGS="$CPPFLAGS -D_FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits"
+ fi
+ ])