--- mono-debugger-2.6/configure.in	2009-09-25 16:19:09.000000000 +0100
+++ mono-debugger-2.6/configure-new.in	2009-12-22 22:26:52.000000000 +0000
@@ -164,7 +164,7 @@
 AC_SUBST(WRAPPER_CFLAGS)
 AC_SUBST(WRAPPER_LIBS)
 
-GACUTIL_FLAGS='/package $(PACKAGE) /gacdir $(prefix)/lib /root $(DESTDIR)$(prefix)/lib'
+GACUTIL_FLAGS='/package $(PACKAGE) /gacdir $(libdir) /root $(DESTDIR)$(libdir)'
 AC_PATH_PROG(GACUTIL, gacutil, no)
 if test "x$GACUTIL" = "xno" ; then
    AC_MSG_ERROR([No gacutil tool found])