diff -ru ./appgen/vgcode.cpp ../patched/appgen/vgcode.cpp
--- ./appgen/vgcode.cpp	Fri Apr 24 15:19:36 1998
+++ ../patched/appgen/vgcode.cpp	Tue Jun 16 07:27:50 1998
@@ -1291,7 +1291,7 @@
 of << "\n";
 of << "HOMEV	=	" << op.home << "\n";
 #ifdef V_VersionX
-of << "X11INC	=	/usr/X11/include\n";
+of << "X11INC	=	/usr/X11R6/include\n";
 of << "X11LIB	=	/usr/X11R6/lib\n";
 #endif
 of << "LIBS	=	" << DEF_LIBS << "\n";