From edbc5693ae1f4146e5f4ff23c9d891e57197121f Mon Sep 17 00:00:00 2001
From: Zack Weinberg <zackw@panix.com>
Date: Tue, 8 Dec 2020 11:14:19 -0500
Subject: [PATCH] testsuite: log version of M4 and Perl

Jannick reported problems on OSX for which the most plausible
explanation is that the system-provided M4 is emitting error messages
with different line numbers than we expect, perhaps because Apple
froze their copy of GNU M4 to the last GPLv2 release.  To test this
hypothesis, add $PERL and $M4 to AT_TESTED in our testsuite.

* tests/atlocal.in: Also set $M4 from configure.
* tests/local.at: Add AT_TESTED([$PERL $M4]).
---
 tests/atlocal.in | 1 +
 tests/local.at   | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/tests/atlocal.in b/tests/atlocal.in
index 3c436cd93..241e3030f 100644
--- a/tests/atlocal.in
+++ b/tests/atlocal.in
@@ -21,6 +21,7 @@
 AWK='@AWK@'
 EGREP='@EGREP@'
 GREP='@GREP@'
+M4='@M4@'
 PERL='@PERL@'
 SED='@SED@'
 
diff --git a/tests/local.at b/tests/local.at
index 6062bcfad..536f9a54a 100644
--- a/tests/local.at
+++ b/tests/local.at
@@ -24,6 +24,9 @@ m4_pattern_allow([^m4_(define|shift)$])
 # Programs this package provides
 AT_TESTED([autom4te autoconf autoheader autoupdate autoreconf ifnames])
 
+# System-provided programs that this package relies on
+AT_TESTED([$PERL $M4])
+
 # Enable colored test output.
 AT_COLOR_TESTS
 
-- 
2.47.3