--- mono-1.2.5.2/configure.in-	2007-11-08 16:25:22 +0000
+++ mono-1.2.5.2/configure.in	2007-11-08 16:47:44 +0000
@@ -1837,11 +1837,6 @@ esac
 
 AC_SUBST(libsuffix)
 
-if test "x$TARGET" != "xAMD64"; then
-   # valgrind headers don't compile under x86-64
-   AC_CHECK_HEADERS(valgrind/memcheck.h)
-fi
-
 if test "x$TARGET" = "xAMD64" -o "x$TARGET" = "xX86"; then
 	if test "x$with_tls" = "x__thread"; then
 		#