--- rxvt-unicode/src/rxvtutil.h	2006/01/30 19:46:13	1.25
+++ rxvt-unicode/src/rxvtutil.h	2007/11/20 17:44:44	1.30
@@ -4,26 +4,24 @@
 #include <cstdlib>
 #include <cstring>
 
+using namespace std;
+
 #define PP_CONCAT_(a, b) a ## b
 #define PP_CONCAT(a, b) PP_CONCAT_(a, b)
 #define PP_STRINGIFY_(a) #a
 #define PP_STRINGIFY(a) PP_STRINGIFY_(a)
 
-// actually, some gcc-3.x versions work, too
-#define HAVE_GCC_BUILTINS (__GNUC__ >= 4)
+#define HAVE_GCC_BUILTINS (__GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ == 4))
 
-#ifndef __attribute__
-# if __GNUC__
-#  if (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || (__GNUC__ < 2)
-#   define __attribute__(x)
-#  endif
-# endif
-# define __attribute__(x)
+#if __GNUC__ >= 3
+# define rxvt_attribute(x) __attribute__(x)
+#else
+# define rxvt_attribute(x)
 #endif
 
-#define NORETURN __attribute__ ((noreturn))
-#define UNUSED   __attribute__ ((unused))
-#define CONST    __attribute__ ((const))
+#define NORETURN rxvt_attribute ((noreturn))
+#define UNUSED   rxvt_attribute ((unused))
+#define CONST    rxvt_attribute ((const))
 
 // increases code size unless -fno-enforce-eh-specs
 #if __GNUC__
@@ -63,13 +61,13 @@
 static inline
 T lerp (T a, U b, P p)
 {
-  return (int(a) * int(p) + int(b) * int(100 - p)) / 100;
+  return (long(a) * long(100 - p) + long(b) * long(p) + 50) / 100;
 }
 
 // some bit functions, xft fuck me plenty
 #if HAVE_GCC_BUILTINS
-static inline int ctz      (unsigned int x) CONST { return __builtin_ctz      (x); }
-static inline int popcount (unsigned int x) CONST { return __builtin_popcount (x); }
+static inline int ctz      (unsigned int x) { return __builtin_ctz      (x); }
+static inline int popcount (unsigned int x) { return __builtin_popcount (x); }
 #else
 // count trailing zero bits and count # of one bits
 int ctz      (unsigned int x) CONST;
@@ -91,7 +89,7 @@
 };
 
 /* simplevec taken (and heavily modified), from:
- * 
+ *
  *  MICO --- a free CORBA implementation
  *  Copyright (C) 1997-98 Kay Roemer & Arno Puder
  */