From 2611e1991fabe2a3ae929c6ebd4afbd4f550f306 Mon Sep 17 00:00:00 2001 From: Paul Smith Date: Sun, 26 Feb 2023 18:04:14 -0500 Subject: Introduce a --warn command line option 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. --- NEWS | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'NEWS') diff --git a/NEWS b/NEWS index 683ab115..ad56d660 100644 --- a/NEWS +++ b/NEWS @@ -18,7 +18,14 @@ https://sv.gnu.org/bugs/index.php?group=make&report_id=111&fix_release_id=111&se * WARNING: Removed AmigaOS support! This version of GNU Make no longer supports AmigaOS. If you need support - for AmigaOS please use one of the older versions. + for AmigaOS please use one of the older versions of GNU Make. + +* New feature: Makefile warning reporting control + A new option "--warn" controls reporting of warnings for makefiles. Actions + can be set to "ignore", "warn", or "error". The existing warning for + undefined variables is implemented and defaults to "ignore". + "--warn-undefined-variables" is deprecated, and is translated to + "--warn=undefined-vars" internally. Version 4.4.1 (26 Feb 2023) -- cgit v1.2.1