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| author | Zack Weinberg <zackw@panix.com> | 2020-09-22 14:24:33 -0400 |
|---|---|---|
| committer | Zack Weinberg <zackw@panix.com> | 2020-09-22 15:46:44 -0400 |
| commit | 119beb03250a5ddf9514994c5c5d601692b81fa6 (patch) | |
| tree | c8adad651c7f3bb674af8001fd657425d569ec82 /NEWS | |
| parent | 8cb3442318041c78df6182fc37ad55a2450048fc (diff) | |
| download | autoconf-119beb03250a5ddf9514994c5c5d601692b81fa6.tar.gz | |
Autoupdate AC_{DIAGNOSE,FATAL,OBSOLETE,WARNING} and _AC_COMPUTE_INT.
While working on the previous patches I noticed that all of these
macros are officially obsolete, but autoupdate doesn’t replace them.
_AC_COMPUTE_INT is easy to autoupdate. AC_{DIAGNOSE,FATAL,WARNING}
require a little special handling because their replacements are
m4sugar macros, and autoupdate normally expands m4sugar macros as it
goes. Fortunately, the same workaround as is used for AC_FOREACH can
be applied. AC_OBSOLETE also needs that workaround, and cannot be
fully replaced automatically.
The bulk of the patch is removing internal uses of AC_DIAGNOSE.
* lib/autoconf/autoupdate.m4
* lib/autoconf/c.m4
* lib/autoconf/functions.m4
* lib/autoconf/general.m4
* lib/autoconf/headers.m4
* lib/autoconf/lang.m4
* lib/autoconf/status.m4
* lib/autoconf/types.m4
* tests/local.at
* tests/tools.at:
Use, and/or refer to, m4_warn instead of AC_DIAGNOSE.
* lib/autoconf/general.m4 (_AC_COMPUTE_INT): Define using AU_DEFUN.
(AC_DIAGNOSE, AC_FATAL, AC_WARNING): Autoupdate to m4_warn,
m4_fatal, and m4_warn([syntax], [$1]) respectively, using the same
paired AU_DEFUN/AC_DEFUN trick that is used for AC_FOREACH.
(AC_OBSOLETE): Autoupdate to m4_warn([obsolete], [$1]) and advise
hand-conversion to AU_DEFUN.
* lib/autoconf/autoupdate.m4 (AU_DEFUN): Tweak quoting so m4_warn([$3])
is emitted into the edited configure.ac instead of being expanded at
autoupdate time.
* tests/tools.at (autoupdating AC_FOREACH): Adjust grep expressions.
(autoupdating AC_DIAGNOSE and AC_WARNING): New test.
(autoupdating AC_FATAL): New test.
(autoupdating AC_OBSOLETE): New test.
* tests/mktests.sh (ac_exclude_list, au_exclude_list):
Exclude AC_DIAGNOSE, AC_FATAL, AC_FOREACH, AC_OBSOLETE, and AC_WARNING
if not already excluded.
Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 10 |
1 files changed, 10 insertions, 0 deletions
@@ -199,6 +199,16 @@ GNU Autoconf NEWS - User visible changes. diagnosed as obsolete, and replaced with AC_CONFIG_HEADERS by autoupdate. +- The obsolete macros AC_DIAGNOSE, AC_FATAL, AC_WARNING, and + _AC_COMPUTE_INT are now replaced with modern equivalents by + autoupdate. + +- The macro AC_OBSOLETE is obsolete. Autoupdate will replace it with + m4_warn([obsolete], [explanation]). If possible, macros using + AC_OBSOLETE should be converted to use AU_DEFUN or AU_ALIAS instead, + which enables autoupdate to replace them, but this has to be done by + hand and is not always possible. + - AC_FC_LINE_LENGTH now documents the maximum portable length of "unlimited" Fortran source code lines to be 250 columns, not 254. |