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Version 1.4.9 - 23 Mar 2007, by Eric Blake (CVS version 1.4.8c)
* Minor documentation and portability cleanups.
Version 1.4.8b - 24 Feb 2007, by Eric Blake (CVS version 1.4.8a)
* Fix a regression introduced in 1.4.8 that made m4 unable to process
files larger than 2GiB on some platforms.
* Fix a regression introduced in 1.4.8 that made m4 dump core when
invoked as 'm4 -- file'.
* The `eval' builtin now follows C precedence rules. Additionally, the
short-circuit operators correctly short-circuit division by zero. The
previously undocumented alias of '=' meaning '==' in eval now triggers a
deprecation warning, so that a future version of M4 can implement a form
of variable assignment as an extension.
* The `include' builtin now affects exit status on failure, as required by
POSIX. Use `sinclude' if you need a successful exit status.
* The `-E'/`--fatal-warnings' command-line option now has two levels. When
specified only once, warnings affect exit status, but execution
continues, so that you can see all warnings instead of fixing them one
at a time. To acheive 1.4.8 behavior, where the first warning
immediately exits, specify -E twice on the command line.
* A new `--warn-macro-sequence' command-line option allows detection of
sequences in `define' and `pushdef' definitions that match an optional
regular expression. The default regular expression is
`\$\({[^}]*}\|[0-9][0-9]+\)', corresponding to the sequences that might
not behave correctly when upgrading to the eventual M4 2.0. By default,
M4 2.0 will follow the POSIX requirement that a macro definition
containing `$11' must expand to the first argument concatenated with 1,
rather than the eleventh argument; and will take advantage of the POSIX
wording that allows implementations to treat `${11}' as the eleventh
argument instead of literal text. Be aware that Autoconf 2.61 will not
work with this option enabled with the default regular expression; but
Autoconf 2.62 will be compatible with this option.
* Improved portability to platforms such as BSD/OS and AIX.
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Version 1.4.8 - 20 November 2006, by Eric Blake (CVS version 1.4.7a)
* The `divert' macro and `-H'/`--hashsize' command line option no longer
cause a core dump when handed extra large values. Also, `divert' now
uses memory proportional to the number of diversions in use, rather than
to the maximum diversion number encountered, so that large diversion
numbers are less likely to exhaust system memory; and is no longer
limited by the maximum number of file descriptors.
* The `--help' and `--version' command line options now consistently
override all earlier options. For example, `m4 --debugfile=trace
--help' now no longer accidentally creates an empty file `trace'.
* The `-L'/`--nesting-limit' command line option can now be set to 0
to remove the default limit of 1024. However, it is still possible that
heavily nested input can cause abrupt program termination due to stack
overflow.
* Problems encountered when writing to standard error, such as with the
`errprint' macro, now always cause a non-zero exit status.
* Warnings and errors issued during macro expansion are now consistently
reported at the line where the macro name was detected, rather than
where the close parenthesis resides. Text wrapped by `m4wrap' now
remembers the location that was in effect when m4wrap was invoked,
rather than changing to line 0 and the empty string for a file. The
macros `__line__' and `__file__' now work correctly even as the last
token in an included file.
* The `builtin' and `indir' macros now transparently handle builtin
tokens generated by `defn'.
* When diversions created by the `divert' macro collect enough text that
M4 must use temporary files, the environment variable $TMPDIR is now
consulted, and a better effort is made to clean up those files in the
event of a fatal signal.
* The `mkstemp' builtin is added with the same GNU semantics as `maketemp',
based on the recommendation of POSIX to deprecate the POSIX semantics of
`maketemp' as inherently insecure. In GNU mode (no -G supplied on the
command line), `maketemp' silently retains the secure GNU semantics, but
a future release of M4 will change this to emit a warning. In
traditional mode (m4 -G), `maketemp' now uses the POSIX-mandated insecure
semantics, and issues a warning that you should convert your script to
use `mkstemp' instead. Additionally, `mkstemp' and `maketemp' are now
well-defined even if the template argument does not end in six `X'
characters.
* The manual has been improved, including a new section on a composite
macro `foreach'.
* The `changecom' and `changequote' macros now treat an empty second
argument the same as if it were missing, rather than using the empty
string and making it impossible to end a comment or quote.
* The `translit' macro now operates in linear instead of quadratic time,
and is now eight-bit clean.
* The `-D', `-U', `-s', and `-t' command line options now take effect
after any files encountered earlier on the command line, rather than up
front, as is done in traditional implementations and required by POSIX.
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Version 1.4.7 - 25 September 2006, by Eric Blake (CVS version 1.4.6a)
* Fix regression from 1.4.5 in handling a file that ends in a macro
expansion without arguments instead of a newline.
* The define and pushdef macros now warn when the first argument is not
a string, rather than silently doing nothing.
* Standard input can now be read more than once, as in 'm4 - file -', and
is not closed until all wrapped text is handled. This makes a
difference when stdin is not a regular file, and also fixes bugs when
using the syscmd or esyscmd macros from wrapped text.
* When standard input is a seekable file, the m4exit, syscmd, and esyscmd
macros now restore the current position to the next unread byte rather
than discarding an arbitrary amount of buffered data.
* SysV command-line compatibility is no longer a goal of GNU M4; the
focus will be instead on POSIX compatibility. This release continues to
support previous usage, but adds warnings in areas which will allow a
future version of GNU M4 to use its own extensions without being tied to
the SysV command line interface.
* The no-op compatibility command line options -B, -N, -S, -T, and
--diversions may be withdrawn or assigned new meanings in future
releases, so they now issue a warning if used.
* A new command line option -i replaces the compatibility -e as the
short spelling of --interactive, for consistency with other GNU tools; a
warning is issued if the old spelling is used, and it may be assigned new
meaning in future releases.
* A new command line option --debugfile replaces the options -o and
--error-output as the preferred spelling. The old options were
misleading in their names and inconsistent with other GNU tools; they are
still silently accepted, but no longer documented in --help, and may be
assigned new meanings in future releases.
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Version 1.4.6 - 25 August 2006, by Eric Blake (CVS version 1.4.5a)
* Fix buffer overruns in regexp and patsubst macros when handed a trailing
backslash in the replacement text, or when handling \n substitutions
beyond the number of \(\) groups.
* Fix memory leak in regexp, patsubst, and changeword macros.
* The format macro now understands %F, %g, and %G.
* When loading frozen files, m4 now exits with status 63 if version
mismatch is detected.
* Fix bugs that occurred when invoked with stdout or stderr closed,
and detect write failures to stdout or to the target of the
debugfile macro. In particular, the syscmd and esyscmd macros can
no longer interfere with the debug stream or diversions.
* The m4exit macro now converts values outside the range 0-255 to 1.
* It is now an error if a command-line input file ends in the middle of a
comment, matching the behavior of mid-string and mid-argument
collection.
* The dnl macro now warns if end of file is encountered instead of a
newline.
* The error message when end of file is encountered now uses the file and
line where the dangling construct started, rather than `NONE:0:'.
* The debugmode and __file__ macros, and the -s/--synclines option, now
show what directory a file was found in when the -I/--include option or
M4PATH variable had an effect.
* The changequote and changecom macros now work with 8-bit characters, and
quotes and comments that begin with `(' are properly recognized
following a word.
* The new macro __program__ is added, which allows the input file to issue
an error message that resembles messages from m4. Warning and error
messages have been reformatted to comply with GNU Coding Standards.
* The errprint, m4wrap, and shift macros are now recognized only with
arguments.
* The index, substr, translit, regexp, and patsubst macros now produce
output when given only one argument, but still warn about a missing
second argument.
* The patsubst macro now reliably finds zero-length matches at the end
of a string.
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From John Heasley in PR 34233.
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Version 1.4.5 - 15 July 2006, by Eric Blake (CVS version 1.4.4c)
* Fix sysval on BeOS, OS/2, and other systems that store exit status
in the low-order byte. Additionally, on Unix platforms, if syscmd was
terminated by a signal, sysval now displays the signal number shifted
left by eight bits, to match traditional m4 implementations.
* The maketemp macro is no longer subject to platform limitations (such as
26 or 32 max files from a given template).
* Frozen files now require that the first directive be V (version), to
better diagnose version mismatch. Additionally, if the F directive
(builtin function) names an unknown builtin that existed in the m4 that
froze the file but not in the current m4 (for example, changeword), the
warning is deferred until an attempt is made to actually use the
builtin. This allows downgrading from beta m4-1.4o to stable m4-1.4.5
without breaking autoconf.
* The format and indir macros are now recognized only with arguments.
* The eval macro no longer crashes on x86 architectures when dividing the
minimum integer by -1.
* On systems with ecvt and fcvt, format no longer truncates trailing
zeroes on integers printed with %.0f. On systems without these
functions, format is no longer subject to a buffer overflow that
permitted arbitrary code execution.
* On native Windows builds, the macro __windows__ is provided instead of
__unix__. Likewise, on OS/2 builds, the macro __os2__ is provided. This
allows input files to determine when syscmd might behave differently.
* Fix bug in 1.4.3 patch to use \n line-endings that did not work for
cygwin.
* When given the empty string or 0, undivert is now documented as a no-op
rather than closing stdout, warning about a non-existent file, or trying
to read a directory as a file.
* Many documentation improvements. Also, the manual is now distributed
under FDL 1.2, rather than a stricter verbatim-only license.
* Raise the -L (--nesting-limit) command line option limit from 250 to
1024.
* The decr, incr, divert, m4exit, and substr macros treat an empty number
as 0, issue a warning, and expand as normal; rather than issuing an error
and expanding to the empty string.
* The eval macro now treats an empty radix argument as 10, handles radix 1,
and treats the width argument as number of digits excluding the sign,
for compatibility with other m4 implementations.
* The ifdef, divert, m4exit, substr, and translit macros now correctly
ignore extra arguments.
* The popdef and undefine macros now correctly accept multiple arguments.
* Although changeword is on its last leg, if enabled, it now reverts to the
default (faster) regexp when passed the empty string.
* The regexp and substr macros now warn and ignore a trailing backslash in
the replacement, and warn on \n for n larger than the number of
sub-expressions in the regexp.
Version 1.4.4b - 17 June 2006, by Eric Blake (CVS version 1.4.4a)
* Fix a recursive push_string crashing bug, which affected changequote of
three or more characters on some compilers.
* Use automake to fix build portability issues.
* Fix a recursive m4wrap crashing bug.
* Fix a 1 in 2**32 hash crashing bug.
* Tracing a macro by name is now persistent, even if the macro is
subsequently undefined or redefined. The traceon and traceoff macros no
longer warn about undefined symbols. This solves a crash when using
indir on an undefined macro traced with the -t option, as well as an
incorrect result of ifdef. Furthermore, tracing is no longer transferred
with builtins, solving the bug of "m4 -tm4_eval" failing to give trace
output on the input "define(`m4_eval',defn(`eval'))m4_eval(1)".
* Fix a crash when a macro is undefined while collecting its arguments, by
always using the definition that was in effect before argument
collection. This behavior matches the C pre-processor, and means that
the sequence "define(`f',`1')f(define(`f',`2'))f" is now documented to
result in "12", rather than the previously undocumented "22".
* Update the regex engine to fix several bugs.
* Fix a potential crash on machines where char is signed.
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* List the info files directly in the PLIST.
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developer is officially maintaining the package.
The rationale for changing this from "tech-pkg" to "pkgsrc-users" is
that it implies that any user can try to maintain the package (by
submitting patches to the mailing list). Since the folks most likely
to care about the package are the folks that want to use it or are
already using it, this would leverage the energy of users who aren't
developers.
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CONFIGURE_ARGS.
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example MAKE_ENV+=FOO=${BAR} is changed to MAKE_ENV+=FOO=${BAR:Q}. Some
other changes are outlined in
http://mail-index.netbsd.org/tech-pkg/2005/12/02/0034.html
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Version 1.4.4 - October 2005, by Gary V. Vaughan
* ./configure --infodir=/usr/share/info now works correctly.
* When any file named on the command line is missing exit with status 1.
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WARN: Makefile:24: CONFIGURE_ARGS should be modified using "+=".
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Version 1.4.3 - March 2005, by Gary V. Vaughan
* DESTDIR installs now work correctly.
* Don't segfault with uncompilable regexps to changeword().
* Always use \n line-endings for frozen files (fixes a cygwin bug).
* Portability fix for systems lacking mkstemp(3).
* Approximately 20% speed up in the common case of usage with autoconf.
* Supported on QNX 6.3.
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* configure.in (VERSION): Bump to 1.4.2.
* NEWS: Describe 1.4.2's changes.
* src/m4.c (reference_error): Preserve errno, since M4ERROR
relies on this.
* src/builtin.c (m4_esyscmd): Clear errno before calling popen.
(m4_maketemp): Clear errno before calling mkstemp.
* src/path.c (path_search): Don't let "free" trash errno when
returning NULL.
* src/output.c (insert_file): Don't assume errno has a valid
value simply because fread returns zero. This fixes a
portability bug reported by Marion Hakanson in
<http://lists.gnu.org/archive/html/bug-m4/2004-07/msg00029.html>.
Fixes PR pkg/27301.
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* maketemp now creates an empty file with the given name, instead of merely
returning the name of a nonexistent file. This closes a security hole.
(Now it builds on Darwin/MacOSX; no more 'sigstack' linking error.)
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"yes"). So any packages that have old GNU configure script that
does not support --infodir option (while using INFO_FILES) can set
CONFIGURE_HAS_INFODIR=NO.
This was suggested by agc@ as a clearer definition.
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because although these packages use autoconf-style configure
scripts they do not know --infodir option.
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the variable name.
Fixes build on bootstrap-pkgsrc systems, closes pkg/22918 from MLH.
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Should anybody feel like they could be the maintainer for any of thewe packages,
please adjust.
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Closes PR 21263 by Jeremy C. Reed.
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Change share dirname from gm4 to m4 to match PKGNAME.
Bump PKGREVISION to 1.
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have been converted to USE_BUILDLINK2.
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Summary of changes:
- removal of USE_GTEXINFO
- addition of mk/texinfo.mk
- inclusion of this file in package Makefiles requiring it
- `install-info' substituted by `${INSTALL_INFO}' in PLISTs
- tuning of mk/bsd.pkg.mk:
removal of USE_GTEXINFO
INSTALL_INFO added to PLIST_SUBST
`${INSTALL_INFO}' replace `install-info' in target rules
print-PLIST target now generate `${INSTALL_INFO}' instead of `install-info'
- a couple of new patch files added for a handful of packages
- setting of the TEXINFO_OVERRIDE "switch" in packages Makefiles requiring it
- devel/cssc marked requiring texinfo 4.0
- a couple of packages Makefiles were tuned with respect of INFO_FILES and
makeinfo command usage
See -newly added by this commit- section 10.24 of Packages.txt for
further information.
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fail on solaris.
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+ move the patch digest/checksum values from files/patch-sum to distinfo
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XXX need to teach pkglint to be more picky about this
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INSTALL which have both been worked around in bsd.pkg.mk now.
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to an absolute path.
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