$NetBSD: patch-Makefile.in,v 1.4 2021/04/17 07:46:52 nia Exp $

Install man pages to mandir.

--- Makefile.in.orig	2020-10-19 12:07:59.000000000 +0000
+++ Makefile.in
@@ -51,7 +51,7 @@ bindir = @bindir@
 libdir = @libdir@
 datadir = @datarootdir@
 docdir = @datarootdir@/doc/abcmidi
-mandir = @datarootdir@/man/man1
+mandir = @mandir@/man1
 
 binaries=abc2midi midi2abc abc2abc mftext yaps midicopy abcmatch