openflow build environment setup

openflow/include/click/cxxprotect.h

@@ -0,0 +1,25 @@
+#ifdef __cplusplus
+# define new		linux_new
+# define this		linux_this
+# define delete		linux_delete
+# define class		linux_class
+# define virtual	linux_virtual
+# define typename	linux_typename
+# define protected	linux_protected
+# define public		linux_public
+# define namespace	linux_namespace
+# define false		linux_false
+# define true		linux_true
+#endif
+
+#ifndef CLICK_CXX_PROTECT
+# ifdef __cplusplus
+#  define CLICK_CXX_PROTECT	extern "C" {
+#  define CLICK_CXX_UNPROTECT	}
+# else
+#  define CLICK_CXX_PROTECT	/* nothing */
+#  define CLICK_CXX_UNPROTECT	/* nothing */
+# endif
+#endif
+
+#define CLICK_CXX_PROTECTED 1