[b695396d3070a538dafaeed76a84fb93d8481fdd7f4672113c5a968130c2e9f4] Add mention of m4 directory to configure.ac and Makefile.am

[W. Michael Petullo <wmpetullo src gnome org>]

commit cd73cfbdb624c43b3b6dcacc30bd5a174569d777
Author: W. Michael Petullo <mike flyn org>
Date:   Tue Jul 7 20:11:50 2020 -0400

    Add mention of m4 directory to configure.ac and Makefile.am
    
    Closes #44.

 Makefile.am  | 2 ++
 configure.ac | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/Makefile.am b/Makefile.am
index 33fb779..33c3f20 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,3 +1,5 @@
+ACLOCAL_AMFLAGS = -I m4
+
 SUBDIRS = libdmapsharing vala tests doc
 DIST_SUBDIRS = $(SUBDIRS) m4 media
 
diff --git a/configure.ac b/configure.ac
index b73c7f7..7eedb26 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4,7 +4,7 @@ API_VERSION=4.0
 AC_SUBST(API_VERSION)
 
 AM_CONFIG_HEADER(config.h)
-AC_SUBST(ACLOCAL_AMFLAGS, "-I m4")
+AC_CONFIG_MACRO_DIRS([m4])
 
 AC_HEADER_STDC
 AC_PROG_CC