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This also includes fixing the most of the exit handling code for VMS.
Self tests:
Previously about 94 Tests in 36 categories fail.
Now about 45 tests in 22 categories fail.
Because some tests do not properly clean up, the number of tests that
fail can vary by one or two test cases between consecutive runs.
* Makefile.am: Add new VMS files.
* job.c: add prototype for vms_strsignal().
* job.c: (child_error): Remove VMS specific code as no longer needed.
* job.c: (reap_children): The VMS specific code was setting the
status to 0 instead of setting it to the proper exit status.
* job.h: Add vms_launch_status to struct child.
* main.c: (main): Use environment variables for options to use MCR
* instead of a foreign command, and to always use command files for
subprocesses.
For VMS use (set_program_name) routine which is common to ports of
other GNU packages to VMS to set the program name used internally.
Use (vms_putenv_symbol) to set up symbols to be visible in child
programs, including recursive make launched by execve()
Start of Bash shell detection code for VMS.
* makefile.com: Need nested_include=none for building on VMS search
lists. Add vms_progname, vms_exit, and vms_export_symbol.
* makefile.vms: Need nested_include=none for building on VMS search
lists. Add vms_progname, vms_exit, vms_export_symbol.
* makeint.h: Make sure non-standard "VMS" macro is defined. Add
prototypes for new VMS routines. Remove VMS-specific failure codes.
* vmsjobs.c: Add VMS POSIX exit code constants.
(_is_unixy_shell): Detect Bash shell.
(vms_strsignal): simulate strsignal() on VMS.
(vmsHandleChildTerm): fix to properly report failed LIB$SPAWN() exit
status codes. Remove code that duplicated code in job.c.
(child_execute_job): Export environment symbols before spawning a
child and restore afterward unless option to use command files for
subprocesses is set. Improve handling of UNIX null commands ":".
* vms_exit.c: Provides vms_exit() to detect if an exit code is UNIX
or VMS, and converts the UNIX code into a VMS exit code.
* vms_export_symbol.c: Routines to create DCL symbols that work like
shell aliases or exported shell symbols and clean them up on exit.
* vms_export_symbol_test.com: Unit test for vms_export_symbol.c
* vms_progname.c: New file: VMS specific replace for progname.c that
is used in some GNU projects.
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* main.c (find_and_set_default_shell, main) [WINDOWS32]: Declare
variables 'const char *' to avoid compiler warnings.
* job.c (construct_command_argv_internal) [!NDEBUG]: Declare 'end'
and set it only if NDEBUG is not defined, to avoid compiler
warnings.
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* configure.ac: Test for isatty() and ttyname()
* makeint.h: provide a substitute for ttyname() if it's not available.
* config.ami.template, config.h-vms.template, config.h.W32.template:
define/undefine HAVE_ISATTY/HAVE_TTYNAME macros.
* NEWS, doc/make.texi: Document these new variables.
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* default.c, main.c, makeint.h, vmsfunctions.c: prefix argv[0] with
"mcr " for MAKE/MAKE_COMMAND and set the program name to the image
filename (without the .exe;version)
* vmsfunctions.c: remove obsolete code
* vmsify: use xmalloc
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* commands.c, function.c, hash.c, job.c, main.c, output.c:
use MAKE exit codes.
* makeint.h: encode make exit codes so that they are VMS compatible.
* job.c: check child exit code for VMS style exit codes.
* vmsjobs.c: save and return VMS style exit code.
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* main.c [WINDOWS32]: Don't declare 'program' as 'const char *',
since it is modified in 'main'.
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die() can be invoked inside a separate output_context, if the
$(error ...) function is expanded as part of a recipe.
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Reported (with patch) by Gerte Hoogewerf <g.hoogewerf@gmail.com>
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* main.c (main): Use ONS(), not OSN().
(prepare_mutex_handle_string) [WINDOWS32]: Use %Ix formatting to
support both 32bit and 64bit systems.
* job.c (free_child, new_job): Use ONS(), not OSN().
* w32/subproc/w32err.c (map_windws32_error_to_string): Use O() when
calling fatal().
Copyright-paperwork-exempt: yes
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* main.c (decode_switches): Always make a copy of option arguments.
(decode_env_switches): Use a stack buffer to convert environment
switches for parsing.
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* main.c (struct command_switch): Change the "string" types to "strlist"
and make "string" be a single-valued string instead.
(output_sync_option, jobserver_fds, sync_mutex): Change to string type.
(decode_output_sync_flags): Handle single strings instead of lists.
(prepare_mutex_handle_string): Ditto.
(main): Ditto.
(clean_jobserver): Ditto.
(init_switches): Handle the new type.
(decode_switches): Ditto.
(define_makeflags): Ditto.
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* output.c (error, fatal, message): Take an extra argument specifying
how many bytes are used by the formatted arguments.
(get_buffer): New function that allocates the requested buffer size.
Remove msc_vsnprintf(), vfmtconcat(), and fmtconcat() as unneeded.
* makeint.h: Declare various helper macros for generating output.
* *.c: Change all error(), fatal(), message() calls to use the macros,
or pass the extra length argument directly.
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* guile.c (guile_gmake_setup) [HAVE_GUILE]: Define a stub function
when Guile support is not enabled.
* main.c (main) [HAVE_GUILE]: Always invoke guile_gmake_setup().
* Makefile.am: Make guile.c standard, not optional.
* build.template: Add the Guile compiler and linker flags.
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(tiny change)
main.c (prepare_mutex_handle_string, main): Initialize
stringlist variables with at least 2 members, as one member is not
currently supported.
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Expand the characters which are legal in a function name, and check
the name for validity. Create a type for the function pointer.
Convert the last argument from a boolean to flags, to allow for expansion.
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If we don't do this we'll continually add flags on recursion. This
is mainly for users to set in their environment before invoking make.
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We are restarting with the original command line flags, so if we set
MAKEFLAGS as well that will cause double flags.
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In this mode we still collect all the output from a given target and
dump it at once. However we don't treat recursive lines any differently
from non-recursive lines. Also we don't print enter/leave messages
after every dump. However we do ensure that we always print them once
to stdout, so the parent make will collect it properly.
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Create a new file, output.c, and collect functions that generate output there.
We introduce a new global context specifying where output should go (to stdout
or to a sync file), and the lowest level output generator chooses where to
write output based on that context.
This allows us to set the context globally, and all operations that write
output (including functions like $(info ...) etc.) will use it.
Removed the "--trace=dir" capability. It was too confusing. If you have
directory tracking enabled then output sync will print the enter/leave message
for each synchronized block. If you don't want that, disable directory
tracking.
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We tried to get some efficiency by avoiding a parse_file_seq() for simple
pattern prerequisites, but this also means no wildcard expansion was
happening, so add it back. Add regression tests for wildcards in target and
prerequisite lists.
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Makes the code a little clearer/cleaner, and solves a problem on systems
where a char is unsigned by default.
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POSIX does not guarantee that writes will be atomic if a file is
opened for normal (non-append) output. That means if multiple processes
are writing to the same file, output could be lost. I can't think of
a real use-case where we would NOT want append for stdout/stderr, so
force it if we can.
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main.c (find_and_set_default_shell): Don't use file_exists_p or
dir_file_exists_p, as those call readdir, which can fail if PATH
includes directories with non-ASCII characters, and that would
cause Make to fail at startup with confusing diagnostics. See
https://sourceforge.net/mailarchive/message.php?msg_id=30846737
for the details.
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In various places we were passing flags and characters to compare, then
using complex conditionals to see where to stop in string searches.
Performance numbers reveal that we were spending as much as 23% of our
processing time in these functions, most of it in the comparison lines.
Instead create a character map and use a single bitwise comparison to
determine if this is any one of the stop characters.
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The database verification can take a long time. Only enable it if debug mode
is enabled. If MAKE_MAINTAINER_MODE is set, it's also enabled by default.
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Ensure all simple flags are kept in the initial batch of flags.
Do not allow any flags with options in that batch.
If there are only non-simple flags ensure MAKEFLAGS begins with " ".
Don't let MFLAGS start with "- ".
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main.c (prepare_mutex_handle_string): Define conditioned on OUTPUT_SYNC.
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