From 9774826e79d06f69b2e5c1d679b01b4304227f4a Mon Sep 17 00:00:00 2001
From: Bruno Haible <bruno@clisp.org>
Date: Fri, 9 Jan 2026 23:51:43 +0100
Subject: [PATCH] Support MSVC in packages that use GNU Autoconf.

Fixes https://github.com/json-c/json-c/issues/909

When ssize_t is defined as a macro, typically through a package's config.h file,
the installed json*.h files must not attempt to define ssize_t via typedef.
---
 json_inttypes.h       | 2 +-
 json_object_private.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/json_inttypes.h b/json_inttypes.h
index a33a31f1..4cc5fc19 100644
--- a/json_inttypes.h
+++ b/json_inttypes.h
@@ -29,7 +29,7 @@ typedef unsigned __int64 uint64_t;
 
 #endif
 
-#if defined(_MSC_VER)
+#if defined(_MSC_VER) && !defined(ssize_t)
 #include <BaseTsd.h>
 typedef SSIZE_T ssize_t;
 #endif
diff --git a/json_object_private.h b/json_object_private.h
index e143b464..f81af881 100644
--- a/json_object_private.h
+++ b/json_object_private.h
@@ -28,7 +28,7 @@ struct json_object;
 #include <unistd.h>
 #endif /* HAVE_UNISTD_H */
 
-#ifdef _MSC_VER
+#if defined(_MSC_VER) && !defined(ssize_t)
 #include <BaseTsd.h>
 typedef SSIZE_T ssize_t;
 #endif
-- 
2.47.3