From afc54d75a19ac9326f32169f64d168deda3ad045 Mon Sep 17 00:00:00 2001
From: Dana Robinson <43805+derobins@users.noreply.github.com>
Date: Wed, 17 Aug 2022 09:21:24 -0700
Subject: Replaces bin/newer with -nt comparison in Makefiles (#2020)

---
 bin/newer          | 43 -------------------------------------------
 config/conclude.am |  4 ++--
 2 files changed, 2 insertions(+), 45 deletions(-)
 delete mode 100755 bin/newer

diff --git a/bin/newer b/bin/newer
deleted file mode 100755
index 5f0fdca..0000000
--- a/bin/newer
+++ /dev/null
@@ -1,43 +0,0 @@
-#!/bin/sh
-#
-# Copyright by The HDF Group.
-# Copyright by the Board of Trustees of the University of Illinois.
-# All rights reserved.
-#
-# This file is part of HDF5.  The full HDF5 copyright notice, including
-# terms governing use, modification, and redistribution, is contained in
-# the COPYING file, which can be found at the root of the source code
-# distribution tree, or in https://www.hdfgroup.org/licenses.
-# If you do not have access to either file, you may request a copy from
-# help@hdfgroup.org.
-#
-# Compare the modification time of file argument 1 against other file arguments.
-# Return true (0) if argument 1 is newer than all others, otherwise return
-# false (1).  If any of the argument is not a file, return false (1).
-#
-# Programmer: Albert Cheng
-# Created Date: 2005/07/06
-# Modification:
-#    Albert Cheng 2005/8/30
-#    Changed from two arguments to multiple arguments.
-
-if test $# -lt 2; then
-    exit 1
-fi
-if test ! -f $1; then
-    exit 1
-fi
-f1=$1
-shift
-
-for f in $*; do
-    if test ! -f $f; then
-	exit 1
-    fi
-    if test X = X`find $f1 -newer $f -print`; then
-	exit 1
-    fi
-done
-
-# passed all tests.  Must be a file newer than all others.
-exit 0
diff --git a/config/conclude.am b/config/conclude.am
index 395f897..c7cb940 100644
--- a/config/conclude.am
+++ b/config/conclude.am
@@ -122,7 +122,7 @@ $(TEST_PROG_CHKEXE) $(TEST_PROG_PARA_CHKEXE) dummy.chkexe_:
 	   tname=$(@:.chkexe_=)$(EXEEXT);\
 	   log=$(@:.chkexe_=.chklog); \
 	   echo "============================"; \
-	   if $(top_srcdir)/bin/newer $(@:.chkexe_=.chkexe) $${tname}; then \
+	   if [ $(@:.chkexe_=.chkexe) -nt $${tname} ]; then \
 	      echo "No need to test $${tname} again."; \
 	   else \
               if test -n "$(REALTIMEOUTPUT)"; then \
@@ -210,7 +210,7 @@ $(TEST_SCRIPT_CHKSH) $(TEST_SCRIPT_PARA_CHKSH) dummysh.chkexe_:
 	   chkname=`basename $(@:.chkexe_=.chkexe)`;\
 	   log=`basename $(@:.chkexe_=.chklog)`; \
 	   echo "============================"; \
-	   if $(top_srcdir)/bin/newer $${chkname} $$cmd $(SCRIPT_DEPEND); then \
+	   if [ $${chkname} -nt $$cmd ] && [ $${chkname} -nt $(SCRIPT_DEPEND) ]; then \
 	      echo "No need to test $${tname} again."; \
 	   else \
 	      echo "============================" > $${log}; \
-- 
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