diff -ru RasMol_2.7.2.1.1/src/Imakefile RasMol_2.7.2.1.1-patched/src/Imakefile 
--- RasMol_2.7.2.1.1/src/Imakefile      Sun Dec 14 04:04:11 2003
+++ RasMol_2.7.2.1.1-patched/src/Imakefile      Sat Apr 10 21:41:19 2004
@@ -84,6 +84,7 @@
 # USER DEFINITIONS
 #
 #  At this point, you may define the cpp macro PIXELDEPTH as 8, 16 or 32
+#define PIXELDEPTH 8
 
 #ifdef PIXELDEPTH
 #if PIXELDEPTH==8
@@ -103,7 +104,7 @@
 
 # RasMol's on-line help direcory
 #   e.g. /usr/local/lib/rasmol/rasmol.hlp
-RASMOLDIR = $(USRLIBDIR)/rasmol/
+RASMOLDIR = @PREFIX@/lib/rasmol/