--- configure.ac	2010-05-18 21:18:36.000000000 +0100
+++ configure.ac.new	2010-07-19 12:03:19.000000000 +0100
@@ -112,29 +112,37 @@
 SITE_PERL_LIB_DIR=`$PERL '-V:installsitelib' | sed "s/.*'\(.*\)'.*/\1/"`
 AC_SUBST(SITE_PERL_LIB_DIR)
 
+# Determine the vendor perl lib dir
+VENDOR_PERL_LIB_DIR=`$PERL '-V:installvendorlib' | sed "s/.*'\(.*\)'.*/\1/"`
+AC_SUBST(VENDOR_PERL_LIB_DIR)
+
 # Determine where the prerequisite perl libs should be installed
 AC_ARG_WITH(perl_libs,
-  [  --with-perl-libs=local|site  install policy for prerequisite perl libs [[local]]],
+  [  --with-perl-libs=local|site|vendor  install policy for prerequisite perl libs [[local]]],
   [PERL_LIBS=$withval],
   [PERL_LIBS=local])
 if test "$PERL_LIBS" = 'local'; then
   MAKEPL_ARG=" LIB=\$(build_root)$prefix/lib/perl5"
 elif test "$PERL_LIBS" = 'site'; then
   :
+elif test "$PERL_LIBS" = 'vendor'; then
+  MAKEPL_ARG=" LIB=$vendorperllibdir"
 else
-  AC_MSG_ERROR([--with-perl-libs value must be either local or site])
+  AC_MSG_ERROR([--with-perl-libs value must be either local, site or vendor])
 fi
 AC_SUBST(MAKEPL_ARG)
 
 # Determine where we will put the gold perl libs
 AC_ARG_WITH(gold_libs,
-  [  --with-gold-libs=local|site  install policy for Gold perl libs [[local]]],
+  [  --with-gold-libs=local|site|vendor  install policy for Gold perl libs [[local]]],
   [GOLD_LIBS=$withval],
   [GOLD_LIBS=local])
 if test "$GOLD_LIBS" = 'local'; then
   LIB_INSTALL_DIR="libdir"
 elif test "$GOLD_LIBS" = 'site'; then
   LIB_INSTALL_DIR="siteperllibdir"
+elif test "$GOLD_LIBS" = 'vendor'; then
+  LIB_INSTALL_DIR="vendorperllibdir"
 else
   AC_MSG_ERROR([--with-gold-libs value must be one of local or site])
 fi