From 7b01d356f907e36fd58726107b0140e6dc96ee05 Mon Sep 17 00:00:00 2001
From: Brian Smith <brian@dbsoft.org>
Date: Mon, 6 May 2024 20:34:25 -0500
Subject: [PATCH] Issue #2512 - Part 4 - Look for gm4 in addition to m4.
 https://bugzilla.mozilla.org/show_bug.cgi?id=1670807

---
 build/moz.configure/old.configure | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/build/moz.configure/old.configure b/build/moz.configure/old.configure
index c5e51720be..ce7e87e92c 100644
--- a/build/moz.configure/old.configure
+++ b/build/moz.configure/old.configure
@@ -10,7 +10,13 @@ def encoded_open(path, mode):
     return codecs.open(path, mode, encoding)
 
 
-m4 = check_prog('M4', ('m4',))
+m4 = check_prog(
+    "M4",
+    (
+        "gm4",
+        "m4",
+    ),
+)
 
 @depends('OLD_CONFIGURE', mozconfig, awk, m4, check_build_environment, shell,
          old_configure_assignments, build_project)