$OpenBSD: patch-globalconf_h,v 1.2 2010/09/14 08:51:24 dcoppa Exp $
--- globalconf.h.orig	Wed Aug 25 10:50:48 2010
+++ globalconf.h	Fri Sep 10 13:47:48 2010
@@ -137,5 +137,27 @@ typedef struct
 
 extern awesome_t globalconf;
 
+#if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
+#define ALWAYS_INLINE __attribute__((always_inline)) inline
+#else
+#define ALWAYS_INLINE inline
+#endif
+
+#if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 3)
+#define awesome_clz(x) __builtin_clz(x)
+#else
+static int ALWAYS_INLINE awesome_clz( uint32_t x )
+{
+    static uint8_t lut[16] = {4,3,2,2,1,1,1,1,0,0,0,0,0,0,0,0};
+    int y, z = (((x >> 16) - 1) >> 27) & 16;
+    x >>= z^16;
+    z += y = ((x - 0x100) >> 28) & 8;
+    x >>= y^8;
+    z += y = ((x - 0x10) >> 29) & 4;
+    x >>= y^4;
+    return z + lut[x];
+}
+#endif
+
 #endif
 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80