Attempt at allowing to use C++ structures in C only code: We use the

CreateAsmStructOffsetsHeader mechanism to generate a header with macros
defined to the sizes of the structures we're interested in and when compiling
in C mode define the structures as "struct { char bytes[size]; }".
It works in principle, but due to how jam works, one would have to specify the
dependency to the generated header for all sources that include it directly or
indirectly.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34441 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/kernel/kernel_c++_structs.h

@@ -0,0 +1,24 @@
+/*
+ * Copyright 2009, Ingo Weinhold, [email protected].
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef _KERNEL_KERNEL_CPP_STRUCTS_H
+#define _KERNEL_KERNEL_CPP_STRUCTS_H
+
+
+#include <util/kernel_c.h>
+
+#include <kernel_c++_struct_sizes.h>
+	// this is the generated defining macros for the structure sizes
+
+
+// in C++ mode include the headers defining the structures
+#ifdef __cplusplus
+#	include <condition_variable.h>
+#endif
+
+// in C mode define the structures
+DEFINE_KERNEL_CPP_STRUCT(ConditionVariable)
+
+
+#endif	// _KERNEL_KERNEL_CPP_STRUCTS_H