--- configure.in.old	2006-03-31 18:31:26.000000000 +0200
+++ configure.in	2006-03-31 18:44:47.000000000 +0200
@@ -407,7 +407,11 @@
 # Let people not build/install docs if they don't have docbook
 #
 
-AC_CHECK_PROG(HASDOCBOOK, docbook2html, yes, no)
+AC_ARG_ENABLE(docbook,           [  --disable-docbook                Don't build documentation],,)
+
+if test x$enable_docbook != xno; then
+	AC_CHECK_PROG(HASDOCBOOK, docbook2html, yes, no)
+fi
 
 AM_CONDITIONAL(USEDOCBOOK, test "x$HASDOCBOOK" = xyes)