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errors: introduce the -Werror=CATEGORY option

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This new option is a lot more flexible than the previous one. Its
details will be discussed in the NEWS and info file, in a forthcoming
change.

If no category is specified (ie: used as simply "-Werror"), the
functionality is the same as before.

* src/complain.c (errors_flag): New variable.
(set_warning_issued): Accept warning categories as an argument.
* src/complain.h (Wall): Better definition.
* src/getargs.c (flags_argmatch): Support for the new format.
(usage): Update -Werror to -Werror[=CATEGORY] format.

* src/complain.c (errors_flag): New variable.
(set_warning_issued): Accept warning categories as an argument.
* src/complain.h (Wall): Better definition.
* src/getargs.c (flags_argmatch): Support for the new format.
(usage): Update -Werror to -Werror=[CATEGORY] format.

Signed-off-by: Akim Demaille <akim@lrde.epita.fr>
This commit is contained in:
Theophile Ranquet
2012-09-27 10:52:45 +00:00
committed by Akim Demaille
parent 11b192127c
commit 9503b0a4a8
4 changed files with 45 additions and 25 deletions
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9
NEWS
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@@ -90,9 +90,8 @@ GNU Bison NEWS
foo.y: warning: 1 shift/reduce conflict [-Wconflicts-sr]
foo.y: warning: 2 reduce/reduce conflicts [-Wconflicts-rr]
$ bison -Werror foo.y
bison: warnings being treated as errors
foo.y: warning: 1 shift/reduce conflict [-Wconflicts-sr]
foo.y: warning: 2 reduce/reduce conflicts [-Wconflicts-rr]
foo.y: error: 1 shift/reduce conflict [-Werror=conflicts-sr]
foo.y: error: 2 reduce/reduce conflicts [-Werror=conflicts-rr]
When %expect or %expect-rr is used, such as with bar.y:
@@ -111,8 +110,8 @@ GNU Bison NEWS
New one:
$ bison bar.y
bar.y: shift/reduce conflicts: 1 found, 0 expected
bar.y: reduce/reduce conflicts: 2 found, 0 expected
bar.y: error: shift/reduce conflicts: 1 found, 0 expected
bar.y: error: reduce/reduce conflicts: 2 found, 0 expected
** Additional yylex/yyparse arguments