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aclocal.m4
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# Generate code to set up dependency tracking. -*- Autoconf -*-
# Copyright (C) 1999-2024 Free Software Foundation, Inc.
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if (set X `ls -t conftest.ts?` &&
test "$[]2" = conftest.ts3 &&
test "$[]3" = conftest.ts2 &&
test "$[]4" = conftest.ts1); then
#
# Ok, ls -t worked. If we're at a resolution of 1 second, we're done,
# because we don't need to test make.
make_ok=true
if test $am_try_res != 1; then
# But if we've succeeded so far with a subsecond resolution, we
# have one more thing to check: make. It can happen that
# everything else supports the subsecond mtimes, but make doesn't;
# notably on macOS, which ships make 3.81 from 2006 (the last one
# released under GPLv2). https://bugs.gnu.org/68808
#
# We test $MAKE if it is defined in the environment, else "make".
# It might get overridden later, but our hope is that in practice
# it does not matter: it is the system "make" which is (by far)
# the most likely to be broken, whereas if the user overrides it,
# probably they did so with a better, or at least not worse, make.
# https://lists.gnu.org/archive/html/automake/2024-06/msg00051.html
#
# Create a Makefile (real tab character here):