Return back to GPLv2+, until the text of the exceptions is
finalized, reverting the change from 2007-07-03 and the first
part of the change from 2007-07-20.
Also:
* COPYING: Revert to GPLv2.
* COPYINGv3: New file, since some auxiliary build tools, used for
building autoconf and not installed, are GPLv3.
* Makefile.am (EXTRA_DIST): Distribute COPYINGv3.
* NEWS: Remove mention of GPLv3.
* README: Clarify situation regarding GPLv3.
Signed-off-by: Eric Blake <ebb9@byu.net>
* lib/autoconf/version.in: Remove.
* lib/m4sugar/version.in: New.
* lib/m4sugar/m4sugar.m4 (m4_acversion, m4_version_prereq): New.
Adjust callers.
* bin/autoupdate.in: Distinguish M4sugar vs. Autoconf macros by
the name of the directory they're in, instead of the filename,
since version.m4 is now in m4sugar, but m4_acversion must not be
classified as an Autoconf macro.
($input_m4): Don't qualify the path to m4sugar.
Rather, pass autoconf_dir to m4.
* tests/Makefile.am (testsuite): Remove -I top_srcdir, unneeded.
* tests/suite.at: Require 2.52c.
* lib/autotest/autotest.m4: New.
* lib/autotest/general.m4, tests/atspecific.m4: Adjust.
* tests/suite.at : Adjust.
(AT_INIT): Log config.log.
* lib/m4sugar/m4sugar.m4 (m4_text_box): New.
* lib/m4sugar/m4sh.m4 (_AS_BOX_LITERAL): Adjust.
* lib/autoconf/general.m4 (_AC_INIT_CONFIG_LOG): Use them.
(_AC_INIT_PREPARE): Fix the incredibly messy and buggy completion
of config.log on traps.
(_AC_OUTPUT_CONFIG_STATUS): Use AS_BOX.
Use consistently `_ACEOF' for configure's here docs, and `_CSEOF'
for config.status'.
Open the log as soon as possible.
Use the same log introduction as configure's.
