diff -up src/c_lib/src/memory.c.orig src/c_lib/src/memory.c
--- src/c_lib/src/memory.c.orig	2014-02-07 11:01:49.674621000 -0200
+++ src/c_lib/src/memory.c	2014-02-07 11:02:02.046621474 -0200
@@ -18,7 +18,7 @@ AUTHORS:
  ****************************************************************************/
 
 #include <Python.h>
-#include <mpir.h>
+#include <gmp.h>
 #include "interrupt.h"
 #include "memory.h"
 
diff -up src/sage/modular/arithgroup/farey.cpp.orig src/sage/modular/arithgroup/farey.cpp
--- src/sage/modular/arithgroup/farey.cpp.orig	2014-02-07 16:44:24.474408115 -0200
+++ src/sage/modular/arithgroup/farey.cpp	2014-02-07 16:44:33.100408446 -0200
@@ -141,6 +141,7 @@ operator*(const SL2Z& M, const vector<mp
   return result;
 }
 
+#if 0
 inline 
 mpz_class 
 floor(const mpq_class r) {
@@ -151,6 +152,7 @@ floor(const mpq_class r) {
     return result - 1;
   }
 }
+#endif
 
 inline
 mpz_class lcm(const mpz_class& a, const mpz_class& b) {