From df752784c26154df83d17f4848823e2112e6a4be Mon Sep 17 00:00:00 2001
From: Akim Demaille <akim.demaille@gmail.com>
Date: Sun, 3 May 2020 17:44:21 +0200
Subject: [PATCH] examples: beware of portability issues with cmp

As someone wrote nearly 20 years ago in Autoconf's documentation,
don't use cmp to compare text files, but diff.
https://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=abad4f0576a7dc361e5385e19c7681449103cdb1
Reported by Jannick.

* examples/test: Use diff, not cmp.
---
 examples/test | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/examples/test b/examples/test
index a1242e3a..02e59b3f 100755
--- a/examples/test
+++ b/examples/test
@@ -115,7 +115,7 @@ run ()
   } >eff
 
   if test $sta_eff -eq $sta_exp; then
-    if cmp eff exp 2>/dev/null; then
+    if diff eff exp >/dev/null 2>&1; then
       echo "$me: PASS: $number"
     else
       echo "$me: FAIL: $number"