-char *COM_SkipPath (char *pathname);
-void COM_StripExtension (char *in, char *out);
-void COM_FileBase (char *in, char *out);
-void COM_DefaultExtension (char *path, char *extension);
+void COM_StripExtension (const char *in, char *out);
+void COM_FileBase (const char *in, char *out);
+void COM_DefaultExtension (char *path, const char *extension);