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-rw-r--r--src/common/cbasetypes.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/src/common/cbasetypes.h b/src/common/cbasetypes.h
index 82ca9df69..05b799045 100644
--- a/src/common/cbasetypes.h
+++ b/src/common/cbasetypes.h
@@ -261,9 +261,21 @@ typedef uintptr_t uintptr;
//////////////////////////////
// boolean types for C
+#if !defined(_MSC_VER) || _MSC_VER >= 1800
+// MSVC doesn't have stdbool.h yet as of Visual Studio 2012 (MSVC version 17.00)
+// but it will support it in Visual Studio 2013 (MSVC version 18.00)
+// http://blogs.msdn.com/b/vcblog/archive/2013/07/19/c99-library-support-in-visual-studio-2013.aspx
+// GCC and Clang are assumed to be C99 compliant
+#include <stdbool.h> // bool, true, false, __bool_true_false_are_defined
+#endif // ! defined(_MSC_VER) || _MSC_VER >= 1800
+
+#ifndef __bool_true_false_are_defined
+// If stdbool.h is not available or does not define this
typedef char bool;
#define false (1==0)
#define true (1==1)
+#define __bool_true_false_are_defined
+#endif // __bool_true_false_are_defined
//////////////////////////////
#endif // not __cplusplus