--- configure.in.orig	2009-12-27 11:04:31.000000000 -0500
+++ configure.in	2009-12-27 13:44:34.000000000 -0500
@@ -704,8 +704,8 @@
 	    AC_MSG_RESULT(unable to determine Perl configuration)
 	    WITH_PERL=no
 	fi
-
-	PERLLIBDIR=`($PERL -e 'use Config; print $Config{sitearchexp};') 2>/dev/null`
+    PERLVENDERLIBDIR=`($PERL -e 'use Config; print $Config{vendorarch};') 2>/dev/null`
+    PERLLIBDIR="${PERLVENDERLIBDIR}/PDFlib"
 	if test -z "$PERLLIBDIR" -o ! -d "$PERLLIBDIR"; then
 	    AC_MSG_RESULT(         unable to determine perl shared library directory)
 	fi