1 files changed, 20 insertions, 0 deletions
diff --git a/src/twm.h b/src/twm.h
index 46ddd2a..db55a32 100644
--- a/src/twm.h
+++ b/src/twm.h
@@ -74,6 +74,26 @@ from The Open Group.
 #include <X11/StringDefs.h>
 #include <X11/Intrinsic.h>
 
+#ifndef APP_NAME
+#define APP_NAME "twm"
+#endif
+
+#ifndef APP_CLASS
+#define APP_CLASS "twm"
+#endif
+
+#ifndef APP_VERSION
+#define APP_VERSION "unknown"
+#endif
+
+#ifndef DATADIR
+#define DATADIR "/usr/local/share"
+#endif
+
+#ifndef XVENDORNAME
+#define XVENDORNAME "The X.Org Foundation"
+#endif
+
 #ifndef WithdrawnState
 #define WithdrawnState 0
 #endif