• ANNOUNCE: DJGPP port of GNU make 4.4 uploaded.

    From [via djgpp-announce@delorie.com]" <@21:1/5 to All on Mon Jan 30 18:53:06 2023
    This is a port of GNU make 4.4 to MSDOS/DJGPP.

    Make is a program for building other programs, given a description of
    the dependencies between the files.

    DJGPP specific changes.

    - There are no DJGPP specific user visible changes.

    - The port has been tested by using it. I have used them only on WinXP,
    Win98SE and MS-DOS 6.22. It has worked flawlessly. I do not konw if
    this will ever be the case on FreeDOS. I have never used/tested it
    on that environment.

    - The port has been configured and compiled on WinXP SP3, Win98SE,
    MS-DOS 7.10 using DOSLFN 0.41f and MS-DOS 6.22 using DOSLFN 0.41f.
    There is no guarantee that this may be possible with any other DOS-
    like OS. Due to the use of long file names it will not be possible
    to configure and compile without it LFN support. The port has been
    compiled using gcc346 and bnu2351b.

    - The port does not provide NLS support.

    As usual, all djgpp specific files (diffs, README files, etc.) are stored in
    the "djgpp" directory. The sources have been configured to be build in the
    "0build" directory. If for some reason it does not work for you, delete it
    contents and configure from scratch again.

    For further information about GNU make please read the info docs and NEWS file.

    Here is an extract of the NEWS file showing the user visible changes
    from the last port (GNU make 4.3) to this one:


    Version 4.4 (31 Oct 2022)

    A complete list of bugs fixed in this version is available here:


    * WARNING: Deprecation!
    The following systems are deprecated in this release:
    - OS/2 (EMX)
    - AmigaOS
    - Xenix
    - Cray
    In the NEXT release of GNU Make, support for these systems will be removed.
    If you want to see them continue to be supported, contact <bug-make@gnu.org>.

    * WARNING: Future backward-incompatibility!
    In the NEXT release of GNU Make, pattern rules will implement the same
    behavior change for multiple targets as explicit grouped targets, below: if
    any target of the rule is needed by the build, the recipe will be invoked if
    any target of the rule is missing or out of date. During testing some
    makefiles were found to contain pattern rules that do not build all targets;
    this can cause issues so we are delaying this change for one release cycle
    to allow these makefiles to be updated. GNU Make shows a warning if it
    detects this situation: "pattern recipe did not update peer target".

    * WARNING: Backward-incompatibility!
    GNU Make now uses temporary files in more situations than previous releases.
    If your build system sets TMPDIR (or TMP or TEMP on Windows) and deletes the
    contents during the build, or uses restrictive permissions, this may cause
    problems. You can choose an alternative temporary directory only for use by
    GNU Make by setting the new MAKE_TMPDIR environment variable before invoking
    make. Note that this value CANNOT be set inside the makefile, since make
    needs to find its temporary directory before the makefiles are parsed.

    * WARNING: Backward-incompatibility!
    Previously each target in a explicit grouped target rule was considered
    individually: if the targets needed by the build were not out of date the
    recipe was not run even if other targets in the group were out of date. Now
    if any of the grouped targets are needed by the build, then if any of the
    grouped targets are out of date the recipe is run and all targets in the
    group are considered updated.

    * WARNING: Backward-incompatibility!
    Previously if --no-print-directory was seen anywhere in the environment or
    command line it would take precedence over any --print-directory. Now, the
    last setting of directory printing options seen will be used, so a command
    line such as "--no-print-directory -w" _will_ show directory entry/exits.

    * WARNING: Backward-incompatibility!
    Previously the order in which makefiles were remade was not explicitly
    stated, but it was (roughly) the inverse of the order in which they were
    processed by make. In this release, the order in which makefiles are
    rebuilt is the same order in which make processed them, and this is defined
    to be true in the GNU Make manual.

    * WARNING: Backward-incompatibility!
    Previously only simple (one-letter) options were added to the MAKEFLAGS
    variable that was visible while parsing makefiles. Now, all options are
    available in MAKEFLAGS. If you want to check MAKEFLAGS for a one-letter
    option, expanding "$(firstword -$(MAKEFLAGS))" is a reliable way to return
    the set of one-letter options which can be examined via findstring, etc.

    * WARNING: Backward-incompatibility!
    Previously makefile variables marked as export were not exported to commands
    started by the $(shell ...) function. Now, all exported variables are
    exported to $(shell ...). If this leads to recursion during expansion, then
    for backward-compatibility the value from the original environment is used.
    To detect this change search for 'shell-export' in the .FEATURES variable.

    * WARNING: New build requirement
    GNU Make utilizes facilities from GNU Gnulib: Gnulib requires certain C99
    features in the C compiler and so these features are required by GNU Make:
    The configure script should verify the compiler has these features.

    * New feature: The .WAIT special target
    If the .WAIT target appears between two prerequisites of a target, then
    GNU Make will wait for all of the targets to the left of .WAIT in the list
    to complete before starting any of the targets to the right of .WAIT.
    This feature is available in some other versions of make, and it will be
    required by an upcoming version of the POSIX standard for make.
    Different patches were made by Alexey Neyman <alex.neyman@auriga.ru> (2005)
    and Steffen Nurpmeso <steffen@sdaoden.eu> (2020) that were useful but the
    result is a different implementation (closer to Alexey's idea).

    * New feature: .NOTPARALLEL accepts prerequisites
    If the .NOTPARALLEL special target has prerequisites then all prerequisites
    of those targets will be run serially (as if .WAIT was specified between
    each prerequisite).

    * New feature: The .NOTINTERMEDIATE special target
    .NOTINTERMEDIATE disables intermediate behavior for specific files, for all
    files built using a pattern, or for the entire makefile.
    Implementation provided by Dmitry Goncharov <dgoncharov@users.sf.net>

    * New feature: The $(let ...) function
    This function allows user-defined functions to define a set of local
    variables: values can be assigned to these variables from within the
    user-defined function and they will not impact global variable assignments.
    Implementation provided by Jouke Witteveen <j.witteveen@gmail.com>

    * New feature: The $(intcmp ...) function
    This function allows conditional evaluation controlled by a numerical
    Implementation provided by Jouke Witteveen <j.witteveen@gmail.com>

    * New feature: Improved support for -l / --load-average
    On systems that provide /proc/loadavg (Linux), GNU Make will use it to
    determine the number of runnable jobs and use this as the current load,
    avoiding the need for heuristics.
    Implementation provided by Sven C. Dack <sdack@gmx.com>

    * New feature: The --shuffle command line option
    This option reorders goals and prerequisites to simulate non-determinism
    that may be seen using parallel build. Shuffle mode allows a form of "fuzz
    testing" of parallel builds to verify that all prerequisites are correctly
    described in the makefile.
    Implementation provided by Sergei Trofimovich <siarheit@google.com>

    * New feature: The --jobserver-style command line option and named pipes
    A new jobserver method is used on systems where mkfifo(3) is supported.
    This solves a number of obscure issues related to using the jobserver
    and recursive invocations of GNU Make. This change means that sub-makes
    will connect to the jobserver even if they are not marked as recursive.
    It also means that other tools that want to participate in the jobserver
    will need to be enhanced as described in the GNU Make manual.
    You can force GNU Make to use the simple pipe-based jobserver (perhaps if
    you are integrating with other tools or older versions of GNU Make) by
    adding the '--jobserver-style=pipe' option to the command line of the
    top-level invocation of GNU Make, or via MAKEFLAGS or GNUMAKEFLAGS.
    To detect this change search for 'jobserver-fifo' in the .FEATURES variable.

    * Some POSIX systems (*BSD) do not allow locks to be taken on pipes, which
    caused the output sync feature to not work properly there. Also multiple
    invocations of make redirecting to the same output file (e.g., /dev/null)
    would cause hangs. Instead of locking stdout (which does have some useful
    performance characteristics, but is not portable) create a temporary file
    and lock that. Windows continues to use a mutex as before.

    * GNU Make has sometimes chosen unexpected, and sub-optimal, chains of
    implicit rules due to the definition of "ought to exist" in the implicit
    rule search algorithm, which considered any prerequisite mentioned in the
    makefile as "ought to exist". This algorithm has been modified to prefer
    prerequisites mentioned explicitly in the target being built and only if
    that results in no matching rule, will GNU Make consider prerequisites
    mentioned in other targets as "ought to exist".
    Implementation provided by Dmitry Goncharov <dgoncharov@users.sf.net>

    * GNU Make was performing secondary expansion of all targets, even targets
    which didn't need to be considered during the build. In this release
    only targets which are considered will be secondarily expanded.
    Implementation provided by Dmitry Goncharov <dgoncharov@users.sf.net>

    * If the MAKEFLAGS variable is modified in a makefile, it will be re-parsed
    immediately rather than after all makefiles have been read. Note that
    although all options are parsed immediately, some special effects won't
    appear until after all makefiles are read.

    * The -I option accepts an argument "-" (e.g., "-I-") which means "reset the
    list of search directories to empty". Among other things this can be used
    to prevent GNU Make from searching in its default list of directories.

    * New debug option "print" will show the recipe to be run, even when silent
    mode is set, and new debug option "why" will show why a target is rebuilt
    (which prerequisites caused the target to be considered out of date).
    Implementation provided by David Boyce <David.S.Boyce@gmail.com>

    * The existing --trace option is made equivalent to --debug=print,why

    * Target-specific variables can now be marked "unexport".

    * Exporting / unexporting target-specific variables is handled correctly, so
    that the attribute of the most specific variable setting is used.

    * Special targets like .POSIX are detected upon definition, ensuring that any
    change in behavior takes effect immediately, before the next line is parsed.

    * When the pipe-based jobserver is enabled and GNU Make decides it is invoking
    a non-make sub-process and closes the jobserver pipes, it will now add a new
    option to the MAKEFLAGS environment variable that disables the jobserver.
    This prevents sub-processes that invoke make from accidentally using other
    open file descriptors as jobserver pipes. For more information see
    https://savannah.gnu.org/bugs/?57242 and https://savannah.gnu.org/bugs/?62397

    * A long-standing issue with the directory cache has been resolved: changes
    made as a side-effect of some other target's recipe are now noticed as

    * GNU Make can now be built for MS-Windows using the Tiny C tcc compiler.
    Port provided by Christian Jullien <eligis@orange.fr>


    The port consists of the usual three packages that have been produced using
    djdev20X (CVS repository code) and can be downloaded from ftp.delorie.com
    and mirrors as (time stamp 2023-01-14):

    GNU make 4.4 binary, info and man format documentation:

    GNU make 4.4 dvi, html, pdf and ps format documentation:

    GNU make 4.4 source:

    Send GNU make specific bug reports to <bug-make@gnu.org>.
    Send suggestions and bug reports concerning the DJGPP port
    to comp.os.msdos.djgpp or <djgpp@delorie.com>.


    Guerrero, Juan Manuel <juan.guerrero@gmx.de>

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