--- gtk/gtkmm/scale.cc.orig	2013-08-31 16:03:20.000000000 +0200
+++ gtk/gtkmm/scale.cc	2013-08-31 16:07:37.000000000 +0200
@@ -1,5 +1,6 @@
 // Generated by gtkmmproc -- DO NOT MODIFY!
 
+#include <cmath>
 #include <gtkmm/scale.h>
 #include <gtkmm/private/scale_p.h>
 
@@ -40,10 +41,10 @@
  int digits = 0;
 
  //Copied from gtk_[h|v]scale_new_with_range():
- if (fabs (step) >= 1.0 || step == 0.0)
+ if (std::fabs (step) >= 1.0 || step == 0.0)
     digits = 0;
   else {
-    digits = abs ((int) floor (log10 (fabs (step))));
+    digits = std::abs (std::floor (std::log10 (std::fabs (step))));
     if (digits > 5)
       digits = 5;
   }