$NetBSD: patch-ab,v 1.6 2018/02/18 05:30:55 rillig Exp $

Install docs in the right place.

--- scripts/Mmake.vars.in.orig	2010-12-20 19:29:08.000000000 +0300
+++ scripts/Mmake.vars.in	2011-04-17 14:21:26.000000000 +0400
@@ -701,14 +701,14 @@
 INSTALL_BINDIR		= $(INSTALL_PREFIX)/bin
 INSTALL_LIBDIR		= $(INSTALL_PREFIX)/lib/mercury
 INSTALL_INFO_DIR	= $(INSTALL_PREFIX)/info
-INSTALL_DVI_DIR		= $(INSTALL_PREFIX)/lib/mercury/doc
-INSTALL_TEXT_DIR	= $(INSTALL_PREFIX)/lib/mercury/doc
-INSTALL_PS_DIR		= $(INSTALL_PREFIX)/lib/mercury/doc
-INSTALL_PDF_DIR		= $(INSTALL_PREFIX)/lib/mercury/doc
+INSTALL_DVI_DIR		= $(INSTALL_PREFIX)/share/doc/mercury
+INSTALL_TEXT_DIR	= $(INSTALL_PREFIX)/share/doc/mercury
+INSTALL_PS_DIR		= $(INSTALL_PREFIX)/share/doc/mercury
+INSTALL_PDF_DIR		= $(INSTALL_PREFIX)/share/doc/mercury
 INSTALL_MAN_DIR		= $(INSTALL_PREFIX)/man
-INSTALL_HTML_DIR	= $(INSTALL_PREFIX)/lib/mercury/html
+INSTALL_HTML_DIR	= $(INSTALL_PREFIX)/share/doc/mercury/html
 INSTALL_MDB_DOC_DIR	= $(INSTALL_PREFIX)/lib/mercury/mdb
-INSTALL_ELISP_DIR	= $(INSTALL_PREFIX)/lib/mercury/elisp
+INSTALL_ELISP_DIR	= $(INSTALL_PREFIX)/share/emacs/site-lisp/mercury
 INSTALL_CGI_DIR		= $(DESTDIR_AND_SLASH)@CGIDIR@
 
 FINAL_INSTALL_PREFIX	= @prefix@