$NetBSD: patch-m4_Makefile.am,v 1.1 2022/04/05 18:48:57 bacon Exp $

Do not install unrelated m4 files.

--- m4/Makefile.am.orig	2017-08-14 18:08:32.000000000 +0000
+++ m4/Makefile.am
@@ -17,6 +17,6 @@ m4macros = ax_c_long_long.m4 \
 	   ax_cxx_header_stdcxx_tr1.m4
 
 # The following is boilerplate
-m4data_DATA = $(m4macros) 
+#m4data_DATA = $(m4macros) 
 EXTRA_DIST = $(m4data_DATA)