+extern cvar_t developer;
+extern cvar_t developer_loadfile;
+extern cvar_t developer_loading;
+
+/* Preprocessor macros to identify platform
+ DP_OS_NAME - "friendly" name of the OS, for humans to read
+ DP_OS_STR - "identifier" of the OS, more suited for code to use
+ DP_ARCH_STR - "identifier" of the processor architecture
+ */
+#if defined(__linux__)
+# define DP_OS_NAME "Linux"
+# define DP_OS_STR "linux"
+#elif defined(WIN64)
+# define DP_OS_NAME "Windows64"
+# define DP_OS_STR "win64"
+#elif defined(WIN32)
+# define DP_OS_NAME "Windows"
+# define DP_OS_STR "win32"
+#elif defined(__FreeBSD__)
+# define DP_OS_NAME "FreeBSD"
+# define DP_OS_STR "freebsd"
+#elif defined(__NetBSD__)
+# define DP_OS_NAME "NetBSD"
+# define DP_OS_STR "netbsd"
+#elif defined(__OpenBSD__)
+# define DP_OS_NAME "OpenBSD"
+# define DP_OS_STR "openbsd"
+#elif defined(MACOSX)
+# define DP_OS_NAME "Mac OS X"
+# define DP_OS_STR "osx"
+#elif defined(__MORPHOS__)
+# define DP_OS_NAME "MorphOS"
+# define DP_OS_STR "morphos"
+#else
+# define DP_OS_NAME "Unknown"