2009-09-24  Aurelien Jarno  <aurelien@aurel32.net>

	* sysdeps/unix/sysv/linux/hppa/kernel-features.h
	(__LINUX_KERNEL_VERSION): Define for 2.6.19 and later.

diff --git a/sysdeps/unix/sysv/linux/hppa/kernel-features.h b/sysdeps/unix/sysv/linux/hppa/kernel-features.h
index e29f6e0..234f0c3 100644
--- a/sysdeps/unix/sysv/linux/hppa/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/hppa/kernel-features.h
@@ -36,4 +36,9 @@
 # define __ASSUME_LWS_CAS		1
 #endif
 
+/* Support for PI futexes was added in 2.6.19.  */
+#if __LINUX_KERNEL_VERSION >= 0x020613
+ # define __ASSUME_FUTEX_LOCK_PI	1
+#endif
+
 #include_next <kernel-features.h>