--- xrender/Portfile~      2007-12-29 21:40:13.000000000 +0100
+++ xrender/Portfile       2007-12-29 21:40:13.000000000 +0100
@@ -34,7 +34,7 @@
     }
 }
 
-configure.universal_ldflags-append  -isysroot ${sysroot}
+configure.universal_ldflags-append  -isysroot ${prefix}
 
 post-destroot {
     set docdir ${prefix}/share/doc/${name}-${version}