diff -Nru xc.orig/programs/xterm/Imakefile xc/programs/xterm/Imakefile
--- xc.orig/programs/xterm/Imakefile	2003-12-23 13:08:25.000000000 +0100
+++ xc/programs/xterm/Imakefile	2003-12-23 13:10:13.000000000 +0100
@@ -16,6 +16,7 @@
 /* Define UTF8support to compile-in support for UTF-8 */
 #define UTF8support
 
+COLORS_256 = -DOPT_256_COLORS=1
 /*
  * Fixes to allow compile with X11R5
  */
@@ -122,7 +123,7 @@
     XKB_DEFINES = XkbClientDefines
    PATH_DEFINES = -DPROJECTROOT=$(PROJECTROOT)
         DEFINES = $(XKB_DEFINES) $(TERMCAPDEFINES) $(FEATURE_DEFINES) $(SCROLLBAR_RIGHT) $(UTF8_OPTION) $(XRFDEF) $(PATH_DEFINES) $(TRACEDEF)
-       INCLUDES = -I. -I/usr/include/ncurses $(XRFINCLUDES)
+       INCLUDES = -I. -I/usr/include/ncurses $(COLORS_256) $(XRFINCLUDES)
 
 #ifdef OS2Architecture
         MAINSRC = os2main.c