--- cmucl.orig/src/lisp/Config.linux_gencgc	2006-07-19 04:54:31.000000000 +0200
+++ cmucl.orig/src/lisp/Config.linux_gencgc	2008-09-12 18:56:36.000000000 +0200
@@ -20,7 +20,11 @@ 
 
 RUNTIME = $(GENCGC) $(LINKAGE)
 # __NO_CTYPE so builds on glibc 2.3 will run on (some) older glibc's.
+ifneq (,$(filter 2% 3%, $(shell $(CC) -dumpversion)))
 CPPFLAGS = -D__NO_CTYPE -I. -I$(PATH1) -I- -I/usr/X11R6/include $(RUNTIME)
+else
+CPPFLAGS = -D__NO_CTYPE -iquote . -iquote $(PATH1) -I/usr/X11R6/include $(RUNTIME)
+endif
 CFLAGS = -rdynamic -Wstrict-prototypes -Wall -g $(RUNTIME)
 ASFLAGS = -g -DGENCGC -DLINKAGE_TABLE
 NM = $(PATH1)/linux-nm