--- ORIG/Make.defs	Tue Aug 28 20:35:10 2001
+++ Make.defs	Wed Aug 29 16:58:09 2001
@@ -91,7 +91,7 @@
 # NOTE: VTP_ROOT is set in each Makefile
 
 APIS_DIR         = $(VTP_ROOT)/APIs
-TERRAIN_SDK_DIR  = $(VTP_ROOT)/TerrainSDK
+TERRAIN_SDK_DIR  = $(X11BASE)/include/TerrainSDK
 TERRAIN_APPS_DIR = $(VTP_ROOT)/TerrainApps
 VTDATA_DIR       = $(TERRAIN_SDK_DIR)/vtdata
 VTLIB_DIR        = $(TERRAIN_SDK_DIR)/vtlib