Index: trunk/psconfig/psbuild
===================================================================
--- trunk/psconfig/psbuild	(revision 14427)
+++ trunk/psconfig/psbuild	(revision 14643)
@@ -98,4 +98,7 @@
     ps_setenv ("ACLOCAL_FLAGS",   "--aclocal_flags");
     ps_setenv ("PERL5LIB",        "--perl5lib");
+
+    # some versions of libtool use this value:
+    $ENV{'D'} = "";
 
     # make sure the aclocal path exists