$NetBSD: patch-doc_Makefile.in,v 1.3 2017/04/19 12:20:08 wiz Exp $

Install docs in $docdir.

--- doc/Makefile.in.orig	2017-04-19 12:16:20.675089478 +0000
+++ doc/Makefile.in
@@ -88,7 +88,7 @@ PRE_UNINSTALL = :
 POST_UNINSTALL = :
 build_triplet = @build@
 host_triplet = @host@
-@DOC_TRUE@am__append_1 = $(pkgdatadir)/html
+@DOC_TRUE@am__append_1 = $(docdir)/html
 @DOC_TRUE@am__append_2 = $(static_pages) html/index.html
 subdir = doc
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4