Get maude to compile on amd64 with g++ 4.7
bicatali@gentoo.org nov 2013

--- Maude-2.6.orig/src/Mixfix/lexerAux.cc	2013-11-06 09:41:00.821049550 -0800
+++ Maude-2.6/src/Mixfix/lexerAux.cc	2013-11-06 09:41:33.174247429 -0800
@@ -35,7 +35,7 @@
 bool fakeNewlineStack[MAX_IN_DEPTH];
 
 void
-getInput(char* buf, int& result, int max_size)
+getInput(char* buf, size_t& result, int max_size)
 {
   result = YY_NULL;
   if (UserLevelRewritingContext::interrupted())
--- Maude-2.6.orig/src/Mixfix/lexerAux.hh	2013-11-06 09:41:00.821049550 -0800
+++ Maude-2.6/src/Mixfix/lexerAux.hh	2013-11-06 09:41:23.466187406 -0800
@@ -27,7 +27,7 @@
 //extern int inStackPtr;
 //extern YY_BUFFER_STATE inStack[];
 
-void getInput(char* buf, int& result, int max_size);
+void getInput(char* buf, size_t& result, int max_size);
 void lexerIdMode();
 void lexerTokenTreeMode(int terminatingTokens);
 void lexerCmdMode();