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* make -p now uses consistent timestamp formatHEADmasterPaul Eggert2023-05-141-0/+5
| | | | | | * NEWS: mention this. * src/main.c (safer_ctime, time_now): Remove. (print_data_base): Use file_timestamp_sprintf to format timestamps.
* [SV 63219] Support an "unload" function for loaded objectsPaul Smith2023-05-141-1/+7
| | | | | | | | | | | | | | | | | | | | If a loaded object defines a symbol <object>_gmk_unload, assume it's a function and invoke it whenever the loaded object is unloaded. Original implementation by Dmitry Goncharov <dgoncharov@users.sf.net> * NEWS: Announce the change. * doc/make.texi: Describe the behavior. * src/gnumake.h: Add information to the comments. * src/makeint.h (unload_all): Declare a new function. * src/main.c (die): Invoke unload_all(). * src/load.c (unload_func_t): Declare a new type for unload. (struct load_list): Remember the unload symbol if it exists. (load_object): Move the parsing of the object name from load_file. Check for the _gmk_unload symbol and if found, remember it. (load_file): Allow load_object to do object filename parsing. (unload_file): Remove the load_list entry when unloading the object. (unload_all): Unload all the loaded objects. * tests/scripts/features/loadapi: Test the unload function.
* Remove the "preview" status from the loaded object featurePaul Smith2023-05-071-0/+9
| | | | | | | | | | | | | | | | Add an ABI version both to the header file and passed to the setup function. Unfortunately this itself is an ABI break and I couldn't find a good way to avoid it. * NEWS: Announce the ABI is not a preview and the incompatibility. * doc/make.texi: Remove the preview warnings for object loading. Document the new ABI version argument. * src/gnumake.h (GMK_ABI_VERSION): Set the ABI version to 1. Add comments documenting the format of the setup function. * src/load.c (setup_func_t): Rename from load_func_t. (load_file): Pass the ABI version to the setup function. * tests/scripts/features/load: Rework the setup function. * tests/scripts/features/loadapi: Ditto.
* * tests/test_driver.pl: Show info about failed testsPaul Smith2023-05-071-0/+1
| | | | | Remove working directories for skipped tests. We use different directories per test so don't keep rmfiles.
* * NEWS: Note the change to the tests suitePaul Smith2023-04-231-0/+3
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* * NEWS: Mention the new .WARNINGS variablePaul Smith2023-04-021-0/+5
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* Add new warnings invalid-var and invalid-refPaul Smith2023-04-011-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | The "invalid-var" warning triggers if the makefile attempts to assign a value to an invalid variable name (a name containing whitespace). The "invalid-ref" warning triggers if the makefile attempts to reference an invalid variable name. Both new warnings have a default action of "warn". * NEWS: Add these new warnings. * doc/make.1: Document them in the man page. * doc/make.texi (Warnings): Document them in the user's manual. * src/warning.h: Add enum values for the new warning types. * src/main.c (initialize_warnings): Initialize the new warnings. * src/variable.h (undefine_variable_in_set, undefine_variable_global): Ask callers to provide a struct floc specifying where the variable is undefined. * src/read.c (do_undefine): Pass floc when undefining. * src/variable.c (check_valid_name): If invalid-var is enabled, check the variable name. (define_variable_in_set): Call it. (undefine_variable_in_set): Ditto. (check_variable_reference): If invalid-ref is enabled, check the variable reference. (lookup_variable): Call it. (lookup_variable_in_set): Ditto. * tests/scripts/options/warn: Add tests for the new warning types.
* Introduce a --warn command line optionPaul Smith2023-04-011-1/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace the singleton --warn-undefined-variables with infrastructure to manage multiple warnings: the --warn option can take an action "ignore", "warn", or "error" (which will apply to all warnings), or a specific warning type and an action for that type. Multiple options can be provided and are consolidated. * NEWS: Announce the new option. * doc/make.1: Document in the man page. * doc/make.texi (Warnings): Document in the user's manual. * Makefile.am: Add new header warning.h. * src/warning.h: Define enum for actions and warning types, and macros to test whether they are set. Keep the default settings separate so that we can correctly reconstruct MAKEFLAGS. * src/makeint.h: Remove deprecated warn_undefined_variables_flag. * src/main.c: Create global variables to hold warning settings. (switches): Add a new switch for --warn. (initialize_warnings): Set the default warning actions. (main): Call initialize_warnings(). (encode_warning_state, decode_warning_state): Convert warning states between strings and enums. (encode_warning_name, decode_warning_name): Convert warning names between strings and enums. (decode_warn_flags): Convert a --warn option into enum values. If deprecated warn_undefined_variables_flag is set convert it to --warn. (decode_switches): Don't remove duplicates of --warn since order matters. Call decode_warn_flags() to handle --warn. (define_makeflags): Special-case handling of --warn options written to MAKEFLAGS: write out the current settings. * src/read.c (tilde_expand): Use new warning control macros. * src/variable.c (warn_undefined): Ditto. * src/job.c (construct_command_argv): Ditto. * tests/scripts/options/warn: Rename from warn-undefined-variables and add tests for --warn. * tests/scripts/variables/MAKEFLAGS: Expect the new behavior.
* Remove support for AmigaOSPaul Smith2023-01-151-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is a lot of specialized code for supporting AmigaOS and it has not been maintained for a number of years. It's highly unlikely that the latest versions even compile properly on AmigaOS anymore. After requesting that someone step forward to own the maintenance of the port in the GNU Make 4.4 release and getting no takers, I removed it. * NEWS: Announce the removal. * README.in: Remove README.Amiga reference. * README.Amiga: Remove unused file. * SCOPTIONS: Ditto. * src/amiga.c: Ditto. * src/amiga.h: Ditto. * src/config.ami: Ditto. * mk/Amiga.mk: Ditto. * Makefile.am: Remove references to deleted files. * Basic.mk.template: Ditto. * maintMakefile: Ditto. * src/commands.c: Remove ifdef'd Amiga code. * src/default.c: Ditto. * src/dir.c: Ditto. * src/file.c: Ditto. * src/function.c: Ditto. * src/job.c: Ditto. * src/job.h: Ditto. * src/main.c: Ditto. * src/os.h: Ditto. * src/read.c: Ditto. * src/remake.c: Ditto.
* * NEWS: Update for the next releasePaul Smith2023-02-261-0/+7
| | | | * configure.ac: Set the version for the next release.
* GNU Make release 4.4.14.4.1Paul Smith2023-02-261-9/+9
| | | | | | | | * NEWS: Set the release number and date. * configure.ac: Update the version. * README.git: Remind to update doc/make.1. * doc/make.1: Update the date. Fix some "GNU Make" references. * doc/make.texi: Update the edition.
* Prerelease GNU Make 4.4.0.914.4.0.91Paul Smith2023-02-191-2/+6
| | | | | * NEWS: Update the date. * configure.ac: Change the release.
* Prerelease GNU Make 4.4.0.904.4.0.90Paul Smith2023-01-141-2/+3
| | | | | | | * NEWS: Update the date. * README.git: Fix a typo. * maintMakefile (check-alt-config): Report success. (upload-*): Use the gnulib gnupload script for uploads.
* Update support for OS/2Paul Smith2023-01-081-0/+3
| | | | | | | | | | | | | | | | | | Patches provided by KO Myung-Hun <komh78@gmail.com> * NEWS: Add a note. * AUTHORS: Add a new author. * README.OS2: Updates to build instructions. * src/dir.c (dir_contents_file_exists_p): Use a stack copy when modifying a const string. * src/job.c (construct_command_argv_internal): Ditto. Reuse variables rather than re-defining them. (exec_command): Cast a const string (we don't change it anyway). * src/getopt.c (_getopt_initialize): Reference unused variables. (_getopt_internal): Add block braces to quiet the compiler. * src/main.c (main): Cast argument to child_execute_job(). * src/posixos.c (set_blocking): Reference unused variables. * src/remake.c (f_mtime): Delete useless code.
* [SV 62654] Support GNU Make on z/OSPaul Smith2023-01-081-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Original patches provided by Igor Todorovski <itodorov@ca.ibm.com> Reworked by Paul Smith <psmith@gnu.org>. Thanks to IBM for providing a test system. * NEWS: Announce support. * AUTHORS: Ditto. * README.zOS: Provide details on building GNU Make on z/OS. * build.sh (get_mk_var): z/OS sh has a strange bug which causes it to generate extra lines of output: rework the function to print output as we compute it instead of collecting it into a variable, which works around this bug. * src/makeint.h: Declare MK_OS_ZOS if we're building for z/OS. * src/arscan.c: Don't include <ar.h> on z/OS. * src/job.c: We can't change environ in ASCII mode on z/OS. * src/main.c: Ditto. Also we can't use pselect() on z/OS. * src/posixos.c: pselect() seems to hang on z/OS: don't use it. * tests/run_make_tests.pl: Handle different exit codes on z/OS. * tests/test_driver.pl: Preserve some special z/OS env.vars. Add special checks to output comparisons when on z/OS. * tests/scripts/features/archives: Don't validate names. Don't try to compile empty files as IBM compilers complain. * tests/scripts/features/shell_assignment: Fix octal value of #. * tests/scripts/features/temp_stdin: Don't print "term". * tests/scripts/functions/shell: Handle shell exit codes. * tests/scripts/targets/ONESHELL: Ditto. * tests/scripts/targets/POSIX: sh -x prints differently. * tests/scripts/variables/SHELL: Ditto.
* [SV 14927] Allow parallel builds for archivesPaul Smith2023-01-031-0/+7
| | | | | | | | | | | | | | Compare the timestamp of the object file (if it exists) with the archived object and if the object file is newer, ensure it's updated in the archive. * NEWS: Announce the new capability. * doc/make.texi (Dangers When Using Archives): Explain how to enable parallel builds with archives. * src/remake.c (f_mtime): For archive element files check the mod time of the object file (if it exists) against the archive object (if it exists). * tests/scripts/features/archives: Add tests for this capability.
* [SV 61463] Don't export inherited private variablesPaul Smith2023-01-021-1/+6
| | | | | | | | | | | If a parent target has an exported variable that is private, don't export it in child targets. * NEWS: Mention this change. * src/variable.c (target_environment): Ignore private inherited variables. * tests/thelp.pl: Add a new "env" operation to show env.var. values. * tests/scripts/variables/private: Verify this new behavior.
* Convert references from "GNU make" to "GNU Make"Paul Smith2023-01-011-54/+54
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* Update the copyright year on all filesPaul Smith2023-01-011-1/+1
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* * NEWS: Add a section for the next releasePaul Smith2022-12-241-1/+17
| | | | Add a note for the MAKEFLAGS enhancements.
* Release GNU Make 4.44.4Paul Smith2022-10-311-2/+2
| | | | | | * NEWS: Update the version and date. * configure.ac: Update the version. * doc/make.texi: Update the EDITION.
* Release GNU Make 4.3.924.3.92Paul Smith2022-10-241-6/+6
| | | | | * configure.ac: Modify the release version. * NEWS: Update the version and date.
* * NEWS: Release GNU make 4.3.914.3.91Paul Smith2022-10-181-2/+3
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* * NEWS: Use GNU Make instead of GNU makePaul Smith2022-10-181-23/+23
| | | | | | | | | | | | * README.git: Ditto. * README.Amiga: Ditto. * README.DOS: Ditto. * README.OS2: Ditto. * README.VMS: Ditto. * README.W32: Ditto. * README.customs: Ditto. * make-gdb.py: Ditto. * tests/run_make_tests.pl: Ditto.
* Update URLs to use https rather than httpPaul Smith2022-10-181-3/+3
| | | | | * (all): Change http:// to https:// * README.W32: Remove invalid link to mingw.org.
* * NEWS: Deprecate XenixPaul Smith2022-10-031-0/+1
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* [SV 63098] Temporarily revert the change to pattern rule behaviorPaul Smith2022-10-021-6/+16
| | | | | | | | | | | | | | | | | | | | The fix for SV 12078 caused a backward-compatibility issue with some makefiles. In order to allow users to resolve this issue, revert that change for this release cycle: it will be reinstated in the next release cycle. Introduce a warning if we detect that the recipe of a multi-target pattern rule doesn't create all the targets. * NEWS: Announce the future backward-incompatibility. * doc/make.texi (Pattern Intro): Describe the behavior and that it will change in the future. * src/remake.c (check_also_make): Check for also_make targets that were not created and generate a warning. (update_goal_chain): Call the new function. (check_dep): Ditto. (update_file_1): Defer implicit rule detection until after we check all the also_make files (as it used to be). * tests/scripts/features/patternrules: Add tests of the new warning. Skip the tests for SV 12078.
* * NEWS: Announce deprecation of OS/2 and AmigaOS portsPaul Smith2022-10-021-3/+10
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* * configure.ac: Update to GNU make 4.3.91Paul Smith2022-09-251-9/+18
| | | | * NEWS: Update the version and clarify some backward-compat issues.
* Release GNU make 4.3.904.3.90Paul Smith2022-09-201-2/+2
| | | | | | * NEWS: Update for the prerelease. * bootstrap.conf: Choose the latest stable gnulib. * README.git: Updates.
* * doc/make.texi (Parallel Disable): Add clarifications.Paul Smith2022-09-131-2/+4
| | | | * NEWS: Suggest how to change makefiles that use $(MAKEFLAGS).
* [SV 13862] Implement the .WAIT special targetPaul Smith2022-09-121-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The next version of the POSIX standard defines parallel execution and requires the .WAIT special target as is implemented in some other versions of make. This implementation behaves similarly to others in that it does not create a relationship between targets in the dependency graph, so that the same two targets may be run in parallel if they appear as prerequisites elsewhere without .WAIT between them. Now that we support .WAIT it's trivial to also support prerequisites of the .NOTPARALLEL special target, which forces the prerequisites of those targets to be run serially (as if .WAIT was specified between each one). * NEWS: Announce the new .WAIT and .NOTPARALLEL support. * doc/make.texi (Parallel Disable): A new section to discuss ways in which parallel execution can be controlled. Modify cross-refs to refer to this section. * src/dep.h (struct dep): Add a new wait_here boolean. (parse_file_seq): Add PARSEFS_WAIT to check for .WAIT dependencies. * src/file.c (split_prereqs): Use PARSEFS_WAIT. (snap_deps): If .NOTPARALLEL has prerequisites, set .WAIT between each of _their_ prerequisites. (print_prereqs): Add back in .WAIT when printing prerequisites. * src/implicit.c (struct patdeps): Preserve wait_here. (pattern_search): Ditto. Use PARSEFS_WAIT when parsing prereqs for pattern rule expansion. * src/read.c (check_specials): Don't give up early: remembering to update these options is not worth the rare speedup. (check_special_file): If .WAIT is given as a target show an error-- once--if it has prereqs or commands. (record_files): Call check_special_file on each target. (parse_file_seq): If PARSEFS_WAIT is given, look for .WAIT prereqs. If we see one assume that we are building a struct dep chain and set the wait_here option while not putting it into the list. * src/remake.c (update_file_1): If wait_here is set and we are still running, then stop trying to build this target's prerequisites. * src/rule.c (get_rule_defn): Add .WAIT to the prerequisite list. * src/shuffle.c (shuffle_deps): Don't shuffle the prerequisite list if .WAIT appears anywhere in it. * tests/scripts/targets/WAIT: Add a test suite for this feature.
* Support the MAKE_TMPDIR environment variablePaul Smith2022-09-111-0/+8
| | | | | | | | | | | Allow build systems to choose an alternative location for make to store its temporary files. * NEWS: Announce the new environment variable. * doc/make.texi (Temporary Files): Provide documentation. * src/misc.c (get_tmpdir): Split into a new function. Compute the temporary directory and store it in a static location. * tests/scripts/features/jobserver: Add a test of MAKE_TMPDIR.
* [SV 63040] shell: Fall back to the callers environmentPaul Smith2022-09-101-1/+2
| | | | | | | | | | | | | | | | | | | If we detect a recursive variable reference when constructing the environment for the shell function, return the original value from the caller's environment. Other options such as failing, returning the empty string, or returning the unexpanded make variable value have been shown to not behave well in real-world environments. If the variable doesn't exist in the caller's environment, return the empty string. Found by Sergei Trofimovich <slyich@gmail.com> when testing older versions of autoconf. * NEWS: Clarify this behavior. * doc/make.texi (Shell Function): Ditto. Also add info about !=. * src/expand.c (recursively_expand_for_file): Search the caller's environment if we detect a recursive variable expansion. * tests/scripts/functions/shell: Add tests for this behavior.
* Rework output sync to lock a temp file on POSIXPaul Smith2022-08-301-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some POSIX systems do not allow locks to be taken on non-files, such as pipes. This is a problem since very often make is invoked with its stdout redirected to a pipe. Also, if stdout is redirected to a file that already has a lock on it for some other reason (perhaps a shared file such as /dev/null) it can cause a hang. This means our previous method of locking stdout, although it had some nice advantages, is not portable enough. Instead, use a temporary file and take the lock on that. We pass the name of the file to child make processes. On Windows we continue to use a shared mutex for output sync. Remove POSIX emulation functions like fcntl from Windows; instead follow the lead of the jobserver and create an interface in os.h for output sync, and move the OS-specific content to posixos.c and w32os.c. * NEWS: Add a note. * src/makeint.h (ALL_SET): Check that all bits are set. * src/os.h: Add bits for checking the state of stdin/stdout/stderr. Add prototypes for OS-specific output sync methods. * src/posixos.c (check_io_state): Determine the status of stdin, stdout, stderr an return a suite of bits describing them. (osync_enabled): If the global variable holding the FD of the lock file (osync_handle) is valid return true. (osync_setup): Create a temporary file and remember its name in a global variable (osync_tmpfile), and set osync_handle. (osync_get_mutex): If output sync is enabled, return the filename of the lock file prefixed with "fnm:" to denote a filename. (osync_parse_mutex): If the provided filename has the wrong format disable output sync. Else open the lock file and set osync_handle. (osync_clear): Close osync_handle. If we're the parent make, then also unlink the temporary file. (osync_acquire): Take a lock on the osync_handle descriptor. (osync_release): Release the lock on the osync_handle descriptor. (fd_set_append): Add APPEND mode to a file descriptor. * src/w32/w32os.c: Perform the same actions as posixos.c, copying the details from src/w32/compat/posixfcn.c. Use a mutex rather than locking a temporary file. * src/output.h: Remove all the OS-specific content. * src/output.c: Remove all the OS-specific content. (set_append_mode): Remove and replace with fd_set_append(). (sync_init): Remove and replace with check_io_state(). (acquire_semaphore): Remove and replace with osync_acquire(). (release_semaphore): Remove and replace with osync_release(). (setup_tmpfile): If the IO state is not obtained, get it. If stdout and/or stderr are valid, set up a tempfile to capture them. (output_init): Set io_state if not set already, and check it when deciding whether to close stdout on exit. * src/main.c (main): If we're syncing, set up the mutex using the new osync_setup() / osync_parse_mutex() methods. (prepare_mutex_handl_string): Replace with osync_parse_mutex(). (die): Call osync_clear(). * src/w32/compat/posixfcn.c: Remove implementations of fcntl(), record_sync_mutex(), create_mutex(), and same_stream().
* Support implementing the jobserver using named pipesPaul Smith2022-08-021-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Using anonymous pipes for jobserver support has some advantages: for example there is nothing on disk that needs to be cleaned up. However it has many obscure problems, related to the fact that in order for it to work we need to ensure these resources are properly passed through to child processes that want to use the jobserver. At the same time we don't want to pass the pipe to process which DON'T know about the jobserver. Other processes can open file descriptors which we then think are our jobserver, but aren't. And, we open the pipe file descriptors in blocking mode which doesn't work for all users. See issues such as SV 57178, SV 57242, and SV 62397 To avoid these issues, use named pipes (on systems where they are available) instead of anonoymous pipes. This simplifies many things: we never need to pass open file descriptors to our children; they can open the jobserver named pipe. We don't need to worry about recursive vs. non-recursive children. Users don't have to "pass through" the resources if they are invoking sub-makes. Each child can open its own file descriptor and set blocking as needed. The downside is the named pipe exists on disk and so must be cleaned up when the "top-level" make instance exits. In order to allow make to continue to be used in build systems where older versions of GNU make, or other tools that want to use the jobserver, but don't understand named pipes, introduce a new option --jobserver-style that allows the user to choose anonymous pipes. * NEWS: Announce the change and the --jobserver-style option. * doc/make.1: Add --jobserver-style documentation. * doc/make.texi (Special Variables): Add missing items to .FEATURES. (Options Summary): Add --jobserver-style. (POSIX Jobserver): Named pipes, changes to --jobserver-auth, and the --jobserver-style option. (Windows Jobserver): Document --jobserver-style for Windows. * configure.ac: Check for mkfifo. * src/config.h-vms.template: Undefined HAVE_MKFIFO. * src/config.h.W32.template: Ditto. * src/main.c: Add jobserver-style as a new command line option. (main): Add jobserver-fifo to .FEATURES if supported. Pass the style option to jobserver_setup(). * src/os.h (jobserver_setup): Accept a style string option. * src/posixos.c (enum js_type): Enumeration of the jobserver style. (js_type): Which style we are currently using. (fifo_name): The path to the named pipe (if in use). (jobserver_setup): If no style is given, or "fifo" is given, set up a named pipe: get a temporary file and use mkfifo() on it, then open it for reading and writing. If something fails fall back to anonymous pipes. (jobserver_parse_auth): Parse jobserver-auth to determine the style. If we are using a named pipe, open it. If we're using anonymous pipes ensure they're valid as before. (jobserver_get_invalid_auth): Don't invalidate the jobserver when using named pipes. (jobserver_clear): Clean up memory used for named pipes. (jobserver_acquire_all): Unlink the named pipe when done. * src/w32/w32os.c (jobserver_setup): Check the style argument. * tests/scripts/features/jobserver: Use --jobserver-style to test the anonymous pipe behavior, and also test named pipe/semaphore behavior. Check invalid jobserver-style options. * tests/scripts/functions/shell: Use --jobserver-style to test the anonymous pipe behavior, and also test named pipe/semaphore behavior.
* [SV 62706] Only second-expand targets that might be builtDmitry Goncharov2022-07-301-0/+5
| | | | | | | | | | | | | | | | | | | | | Second-expand only the prerequisites of the targets being built. Defer second-expanding the prerequisites of targets until we need to decide if they should be built. * NEWS: Mention the change in behavior. * doc/make.texi (Secondary Expansion): Document the new behavior. * src/filedef.h (struct file): Add flag snapped. (expand_deps): Declare a function to second expand the prerequisites of a target. * src/file.c (rehash_file): Merge flag snapped. (expand_deps): Remove qualifier static. Check flag snapped. (snap_deps): Remove the loop which performed second expansion for all targets. * src/remake.c (update_file_1): Second expand the prerequisites of the considered target. * tests/scripts/features/se_explicit: Add tests. * tests/scripts/features/se_implicit: Ditto. * tests/scripts/features/se_statpat: Ditto.
* Disable the jobserver in non-recursive childrenPaul Smith2022-07-301-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Savannah issues such as SV 57242 and SV 62397 show how passing references to closed file descriptors via the --jobserver-auth option in MAKEFLAGS can lead to problematic outcomes. When computing the child environment for a non-recursive shell, add an extra option to MAKEFLAGS to disable the file descriptors for the jobserver. Unfortunately this doesn't modify the value of the make variable MAKEFLAGS, it only modifies the value of the sub-shell environment variable MAKEFLAGS. This can lead to confusion if the user is not considering the distinction. * src/makeint.h: Publish the jobserver-auth value. Add a global definition of the name of the command line option. * src/os.h (jobserver_get_invalid_auth): New function to return a string invalidating the jobserver-auth option. * src/w32/w32os.c (jobserver_get_invaid_auth): Implement it. On Windows we use a semaphore so there's no need to invalidate. * src/posixos.c (jobserver_parse_auth): If we parse the invalid auth string, don't set up the jobserver. (jobserver_get_invalid_auth): Return an invalid option. * src/variable.h (target_environment): Specify if the target environment is for a recursive shell or non-recursive shell. * src/variable.c (target_environment): Move checking for MAKELEVEL into the loop rather than doing it at the end. Along with this, check for MAKEFLAGS and MFLAGS, and update them based on whether we're invoking a recursive or non-recursive child, and also on whether it's necessary to invalidate the jobserver. * src/function.c (func_shell_base): Shell functions can never be recursive to pass 0 to target_environment(). * src/job.c (start_job_command): Specify whether the child is recursive when calling target_environment(). * src/main.c: Export jobserver_auth. sync_mutex doesn't need to be exported. Use the global definition for the option name. * tests/scripts/variables/MAKEFLAGS: Add tests for $MAKEFLAGS.
* [SV 10593] Export variables to $(shell ...) commandsPaul Smith2022-07-091-0/+6
| | | | | | | | | | | | | | | | | | | | | | Export all variables, including exported makefile variables, when invoking a shell for the $(shell ...) function. If we detect a recursive variable expansion, silently ignore that variable and do not export it. We do print a debug message. * NEWS: Announce the potential backward-incompatibility. * doc/make.texi (Shell Function): Document the export behavior. * src/main.c (main): Add "shell-export" to .FEATURES. * src/job.h: New function to free struct childbase. * src/job.c (free_childbase): Implement it; call from free_child. * src/function.c (func_shell_base): Use target_environment() to obtain the proper environment for the shell function. Use free_childbase() to free memory. (windows32_openpipe): Don't reset the environment: the caller already provided a proper PATH variable in envp. * src/variable.c (target_environment): If we detect a recursive expansion and we're called from func_shell, ignore the variable. (sync_Path_environment): Simplify and reduce memory allocation. * tests/scripts/functions/shell: Add tests for this.
* [SV 62100] Add '--shuffle' option supportSergei Trofimovich2022-06-041-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce non-deterministic ordering into goal and prerequisite traversal to help tease out inconsistent failures that may happen when running in parallel build mode. Introduce second order into each dependency chain: 1. Existing order is syntactic order reachable via 'dep->next' 2. New order is shuffled order stored as 'dep->shuf' in each 'dep' When updating goals and prerequisites and '--shuffle' is provided, use the shuffled order to walk the graph. When automatic variable are set always use the syntactic order of parameters. * Makefile.am: Add new src/shuffle.c and src/shuffle.h file. * build_w32.bat: Ditto. * builddos.bat: Ditto. * makefile.com: Ditto. * po/POTFILES.in: Ditto. * doc/make.texi: Add documentation for --shuffle. * doc/make.1: Ditto. * src/dep.h (DEP): Add the shuf pointer. * src/filedef.h (struct file): Add was_shuffled flag. * src/main.c: (shuffle_mode): Global flag for the shuffle mode. (usage): Add the --shuffle option. (switches): Ditto. (main): Set shuffle_mode based on the command line parameter. Reshuffle prerequisites if requested. * src/remake.c (update_goal_chain): Walk the shuffled list if enabled. (update_file_1): Ditto. * src/shuffle.h: Provide an interface for shuffling prerequisites. * src/shuffle.c: Implement option parsing and prerequisite shuffling. * tests/scripts/options/shuffle: Test shuffle option and modes.
* * <all>: Update copyright notices.Paul Smith2022-02-101-1/+1
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* * tests/scripts/features/implicit_search: [SV 48643] Cleanups.Paul Smith2022-02-061-9/+9
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* * src/job.c (load_too_high): Re-enable Linux /proc/loadavg checks.Paul Smith2022-02-061-0/+6
| | | | | | | Further experimentation shows that my previous thinking that there was a problem using this was woefully mistaken. The value generated by the kernel shows runn*ABLE* processes not runn*ING* processes. * NEWS: Announce the change.
* * NEWS: Update with author detailsPaul Smith2021-11-281-0/+2
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* Introduce $(intcmp ...) for numerical comparisonJouke Witteveen2021-11-281-0/+4
| | | | | | | | | | | | Numbers can come from $(words ...), automatic variables such as $(MAKELEVEL), from environment variables, or from shell output such as through $(shell expr ...). The $(intcmp ...) function allows conditional evaluation controlled by numerical variables. * NEWS: Announce this feature. * doc/make.texi (Functions for Conditionals): Document 'intcmp'. * src/function.c (func_intcmp): Create the 'intcmp' built-in function. * tests/scripts/functions/intcmp: Test the 'intcmp' built-in function.
* [SV 48643] Update the implicit rule search docsPaul Smith2021-11-271-0/+8
| | | | | | * NEWS: Announce the change. * doc/make.texi (Implicit Rule Search): Update the definition of "ought to exist" and add the extra step for compatibility mode.
* [SV 45211] Parse MAKEFLAGS immediately when it's resetPaul Smith2021-09-051-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When MAKEFLAGS is set in a makefile, reparse it immediately rather than waiting until after all makefiles have been read and parsed. This change doesn't actually fix the SV bug referenced because, even though we do reparse MAKEFLAGS, we don't handle the -r or -R options immediately. Doing this will require more effort. * NEWS: Announce the change. * src/makeint.h: Publish reset_switches() and decode_env_switches() from main.c * src/main.c (main): Don't call construct_include_path(); it will be invoked decode_switches(). Preserve the old values of builtin_rules, builtin_variables, and job_slots before we read makefiles since they can be changed now. (reset_switches): Publish (remove static). Set the initial value of the stringlist list to NULL. (decode_switches): Call construct_include_path() after decoding. (decode_env_switches): Publish (remove static). (define_makeflags): Set the MAKEFLAGS variable for special handling. * src/read.c (eval_makefile): Check for empty include_directories. (construct_include_path): Clear any old value of .INCLUDE_DIRS before appending new values. Free the previous include_directories. * src/variable.c (lookup_special_var): When MAKEFLAGS is set, first reset the switches then re-parse the variable. * tests/run_make_tests.pl: Memo-ize some default variable values. * tests/scripts/options/dash-r: Create tests for setting -r and -R. * tests/scripts/variables/MAKEFLAGS: Test that resetting -I from within the makefile takes effect immediately.
* [SV 60412] Allow -I- to throw out the current directory pathPaul Smith2021-09-031-0/+4
| | | | | | | | | | | | | Accept a "-" directory value to the -I option to clear the set of directories to be searched up to that point, including the default directories. * NEWS: Announce the change. * doc/make.texi (Summary of Options): Add documentation. * src/read.c (construct_include_path): Check for '-' and if found, clear the list of directories to be searched. * tests/scripts/options/dash-I: Add tests for -I-. * tests/scripts/variables/INCLUDE_DIRS: Add tests for -I-.
* * NEWS: Add a few missing attributionsPaul Smith2021-07-251-4/+4
| | | | * AUTHORS: Add some missing attributions
* [SV 60297] Add .NOTINTERMEDIATE special targetDmitry Goncharov2021-07-251-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Support a new special target, .NOTINTERMEDIATE. Any file or pattern prerequisite of this target will never be considered intermediate. This differs from .SECONDARY in that .SECONDARY files won't be deleted but they will still not be built if they are missing. .NOTINTERMEDIATE files are treated the same way as a target which is explicitly mentioned in the makefile. This is mostly useful with patterns; obviously mentioning a target explicitly here is enough in and of itself to make something not intermediate. Some adjustments made by psmith@gnu.org * NEWS: Announce the new feature. * doc/make.texi (Special Targets): Document .NOTINTERMEDIATE. (Chained Rules): Describe how to use .NOTINTERMEDIATE. * src/main.c (main): Add "notintermediate" to the .FEATURES variable. * src/filedef.h (struct file): Add "notintermediate" flag. * src/file.c (no_intermediates): Mark global .NOTINTERMEDIATE. (snap_file): Support .NOTINTERMEDIATE special target. Throw an error if the same target is marked both .NOTINTERMEDIATE and .SECONDARY or .INTERMEDIATE. (rehash_file): Merge intermediate, notintermediate, secondary flags. (remove_intermediates): Check notintermediate flag before removing. (print_file): * src/implicit.c (pattern_search): Set notintermediate based on the pattern. * tests/scripts/targets/NOTINTERMEDIATE: Add a new test suite.
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