From b4b89c2ab0cc5325a41360c25ef9d2ccbe617e5c Mon Sep 17 00:00:00 2001
From: Jose <jose@zeroc.com>
Date: Wed, 23 Aug 2017 11:33:12 +0200
Subject: [PATCH] Fix compile error with Visual Studio 2012

The standard header stdbool.h is not available
with old Visual Studio compilers
---
 expat/lib/xmltok.c     | 11 ++++++++++-
 expat/tests/runtests.c | 15 ++++++++++++---
 2 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/expat/lib/xmltok.c b/expat/lib/xmltok.c
index f105a493..f6c7ecd5 100644
--- a/expat/lib/xmltok.c
+++ b/expat/lib/xmltok.c
@@ -31,9 +31,18 @@
 */
 
 #include <stddef.h>
-#include <stdbool.h>
 #include <string.h>  // memcpy
 
+#if defined(_MSC_VER) && (_MSC_VER <= 1700)
+  /* for vs2012/11.0/1700 and earlier Visual Studio compilers */
+# define bool   int
+# define false  0
+# define true   1
+#else
+# include <stdbool.h>
+#endif
+
+
 #ifdef _WIN32
 #include "winconfig.h"
 #else
diff --git a/expat/tests/runtests.c b/expat/tests/runtests.c
index cd0c0dce..b2b0fa11 100644
--- a/expat/tests/runtests.c
+++ b/expat/tests/runtests.c
@@ -41,11 +41,20 @@
 #include <stdint.h>
 #include <stddef.h>  /* ptrdiff_t */
 #include <ctype.h>
-#ifndef __cplusplus
-# include <stdbool.h>
-#endif
 #include <limits.h>
 
+#if ! defined(__cplusplus)
+# if defined(_MSC_VER) && (_MSC_VER <= 1700)
+   /* for vs2012/11.0/1700 and earlier Visual Studio compilers */
+#  define bool   int
+#  define false  0
+#  define true   1
+# else
+#  include <stdbool.h>
+# endif
+#endif
+
+
 #include "expat.h"
 #include "chardata.h"
 #include "internal.h"  /* for UNUSED_P only */