[arch-dev-public] [signoff] m4-1.4.12-1
a.radke at arcor.de
Fri Oct 24 14:15:15 EDT 2008
please test and signoff this minor update.
* Noteworthy changes in Version 1.4.12 (2008-10-10) [stable]
Released by Eric Blake, based on git version 1.4.11.*
** Fix regression introduced in 1.4.4b where using `traceon' could delete
a macro. This was most noticeable with `traceon(`traceon')', but
would also happen in cases such as `foo(traceon(`foo'))'.
** Fix regression introduced in 1.4.7 where `m4 -N9' died with an assertion
** Fix regression introduced in 1.4.11 where `defn' died with an assertion
failure on a traced but undefined macro.
** New `-g'/`--gnu' command-line option overrides `-G'/`--traditional'.
For now, the environment variable POSIXLY_CORRECT has no effect on M4
behavior; but a future release of M4 will behave as though --traditional
is implied if POSIXLY_CORRECT is set (this future change is necessary,
because in the current release, there is no way to disable GNU
extensions that conflict with POSIX without the use of a non-POSIX
command-line argument). Clients of M4 that want to use GNU extensions,
even when POSIXLY_CORRECT is set, should start using the -g command-line
argument, even though it is currently a no-op if -G did not appear
earlier in the command line, so that the client will not break in the
face of an upgraded m4 and a POSIXLY_CORRECT execution environment.
** The `-L'/`--nesting-limit' command-line option now defaults to 0 for
unlimited on platforms that can detect and deal with stack overflow. On
systems that lack alternate stack support, such as Cygwin, and on
systems that do not obey the POSIX semantics for distinguishing stack
overflow from other exceptions, such as Linux, you can optionally
install the libsigsegv library (version 2.6 or newer recommended) to
enhance m4's ability to accurately report stack overflow:
** A number of portability improvements inherited from gnulib.
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