--- sgml-common-0.6.3/configure.in.docdir	2002-10-23 12:07:31.000000000 +0100
+++ sgml-common-0.6.3/configure.in	2002-10-23 12:08:10.000000000 +0100
@@ -4,6 +4,8 @@
 AM_INIT_AUTOMAKE(sgml-common, 0.6.3)
 
 docdir='$(prefix)/doc'
+AC_ARG_WITH(docdir, [  -with-docdir=DOCDIR    documentation directory],
+  docdir=$withval)
 AC_SUBST(docdir)
 
 dnl Checks for programs.