--- glib-2.25.17/configure.ac	2010-10-02 19:12:16.000000000 +1000
+++ glib-2.25.17.native/configure.ac	2010-10-02 19:50:40.000000000 +1000
@@ -374,6 +374,12 @@
 dnl
 dnl We do this before the gettext checks, to avoid distortion
 
+case $host in
+  *-*-darwin*)
+    with_libiconv=native
+    ;;
+esac
+
 dnl On Windows we use a native implementation
 
 if test x"$glib_native_win32" = xyes; then