From 08ebc17358238e76a078acac38ee0928a94993fd Mon Sep 17 00:00:00 2001
From: Kirill Makurin <maiddaisuki@outlook.com>
Date: Thu, 5 Jun 2025 16:22:42 +0000
Subject: [PATCH] libltdl: Undeclared reference to access on Windows

On native Windows (MSVC/mingw), access is declared in io.h, which is
not included.

* Reported: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=78701

* libltdl/ltdl.h: Include io.h on Windows platforms.
* libltdl/ltdl.mk: Update serial.
---
 libltdl/ltdl.h  | 4 ++++
 libltdl/ltdl.mk | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/libltdl/ltdl.h b/libltdl/ltdl.h
index 2d01e7e74..3617e79c6 100644
--- a/libltdl/ltdl.h
+++ b/libltdl/ltdl.h
@@ -34,6 +34,10 @@ License along with GNU Libltdl.  If not, see <https://www.gnu.org/licenses/>.
 #include <libltdl/lt_error.h>
 #include <libltdl/lt_dlloader.h>
 
+#if defined _WIN32 && !defined __CYGWIN__
+#include <io.h>
+#endif
+
 LT_BEGIN_C_DECLS
 
 
diff --git a/libltdl/ltdl.mk b/libltdl/ltdl.mk
index 7cf9f3869..461097759 100644
--- a/libltdl/ltdl.mk
+++ b/libltdl/ltdl.mk
@@ -35,7 +35,7 @@ AM_CPPFLAGS	       += -DLT_CONFIG_H='<$(LT_CONFIG_H)>' \
 			  -I$(srcdir)/libltdl -Ilibltdl/libltdl \
 			  -I$(srcdir)/libltdl/libltdl
 AM_LDFLAGS	       += -no-undefined
-LTDL_VERSION_INFO	= -version-info 10:3:3
+LTDL_VERSION_INFO	= -version-info 10:4:3
 
 noinst_LTLIBRARIES	+= $(LT_DLLOADERS)
 
-- 
2.47.3