diff -ruN qbrew/files/patch-qbrew-calc.h qbrew.new/files/patch-qbrew-calc.h
--- qbrew/files/patch-qbrew-calc.h	Wed Dec 31 16:00:00 1969
+++ qbrew.new/files/patch-qbrew-calc.h	Sat Dec 16 14:36:24 2006
@@ -0,0 +1,22 @@
+--- qbrew/calc.h.orig	Sat Dec 16 14:34:28 2006
++++ qbrew/calc.h	Sat Dec 16 14:34:52 2006
+@@ -175,15 +175,15 @@
+     static int SRM(Recipe *r);
+ 
+     // convert Specific Gravity to Plato
+-    static double Calc::SgToP(double sg);
++    static double SgToP(double sg);
+     // convert grain extract to yield
+-    static double Calc::extractToYield(double extract);
+-    static double Calc::yieldToExtract(double yield);
++    static double extractToYield(double extract);
++    static double yieldToExtract(double yield);
+ 
+     // add an entry to the utilization table
+     static void addUEntry(const UEntry &u);
+     // get the table of utilizations
+-    static const QValueList<UEntry> &Calc::getUEntryList();
++    static const QValueList<UEntry> &getUEntryList();
+ 
+  private:
+     static double calcOG(Recipe *r);