diff -up libcap-2.16/libcap/include/sys/capability.h.hfix libcap-2.16/libcap/include/sys/capability.h
--- libcap-2.16/libcap/include/sys/capability.h.hfix	2009-06-15 14:46:51.000000000 +0200
+++ libcap-2.16/libcap/include/sys/capability.h	2009-06-15 14:47:00.000000000 +0200
@@ -30,6 +30,9 @@ extern "C" {
 #define _LINUX_FS_H
 #define __LINUX_COMPILER_H
 #define __user
+#define _ASM_X86_SIGCONTEXT_H
+#define _ASM_POWERPC_SIGCONTEXT_H
+#define _SPARC_SIGCONTEXT_H
 
 typedef unsigned int __u32;
 typedef __u32 __le32;