--- ltmain.sh.orig	2009-12-06 22:35:17 +0100
+++ ltmain.sh	2009-12-06 22:35:44 +0100
@@ -1111,6 +1111,9 @@
       # that all symbols are satisfied, otherwise we get a static library.
       allow_undefined=yes
       ;;
+    *-aix*)
+      allow_undefined=no
+      ;;
     *)
       allow_undefined=yes
       ;;