It needs sched.h for `current'.


 include/asm-ppc64/compat.h |    1 +
 1 files changed, 1 insertion(+)

diff -puN include/asm-ppc64/compat.h~ppc64-compat-build-fix include/asm-ppc64/compat.h
--- 25-power4/include/asm-ppc64/compat.h~ppc64-compat-build-fix	2003-05-22 00:29:45.000000000 -0700
+++ 25-power4-akpm/include/asm-ppc64/compat.h	2003-05-22 00:30:04.000000000 -0700
@@ -4,6 +4,7 @@
  * Architecture specific compatibility types
  */
 #include <linux/types.h>
+#include <linux/sched.h>
 
 #define COMPAT_USER_HZ	100
 

_