diff -r 0d4119024f55 -r 9d7453c16ade examples/rtai/Makefile
--- a/examples/rtai/Makefile	Mon May 29 09:08:56 2006 +0000
+++ b/examples/rtai/Makefile	Mon May 29 09:54:18 2006 +0000
@@ -58,7 +58,7 @@
 ifneq ($(wildcard kernel.conf),)
 include kernel.conf
 else
-KERNELDIR = /usr/src/linux
+KERNELDIR = /lib/modules/`uname -r`/build
 endif
 
 modules: