include: Add an assert.h msvcrt header.

include/Makefile.in

@@ -343,6 +343,7 @@ SRCDIR_INCLUDES = \
 	msiquery.h \
 	mssip.h \
 	mstcpip.h \
+	msvcrt/assert.h \
 	msvcrt/conio.h \
 	msvcrt/crtdbg.h \
 	msvcrt/crtdefs.h \

include/msvcrt/assert.h

@@ -0,0 +1,37 @@
+/*
+ * Assert support
+ *
+ * Copyright 2011 Alexandre Julliard
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#include <crtdefs.h>
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+#undef assert
+#ifdef NDEBUG
+#define assert(_expr) ((void)0)
+#else
+extern void __cdecl _assert(const char *, const char *, unsigned int);
+#define assert(_expr) (void)((!!(_expr)) || (_assert(#_expr, __FILE__, __LINE__), 0))
+#endif
+
+#ifdef  __cplusplus
+}
+#endif