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Re: two -Werror issues
From: |
Akim Demaille |
Subject: |
Re: two -Werror issues |
Date: |
Fri, 1 May 2020 10:31:16 +0200 |
Hi Alexandre,
> Le 30 sept. 2013 à 11:42, Alexandre Duret-Lutz <address@hidden> a écrit :
>
> [...]
>
> Finally I'd suggest to augment the "Invoking Bison" section of the
> documentation
> with an explanation of what is the difference between a warning and an
> error, and
> a documentation of the exit status of Bison.
What do you think about this?
Thanks, and cheers!
commit a1423e16db8eb361c65756ed10d529a2652f7564
Author: Akim Demaille <address@hidden>
Date: Fri May 1 10:28:16 2020 +0200
doc: document the exit status
Suggested by Alexandre Duret-Lutz.
https://lists.gnu.org/r/bug-bison/2013-09/msg00015.html
* doc/bison.texi (Invocation): Here.
diff --git a/doc/bison.texi b/doc/bison.texi
index f8fa697b..31cd9148 100644
--- a/doc/bison.texi
+++ b/doc/bison.texi
@@ -10604,6 +10604,26 @@ For compatibility with POSIX, the standard Bison
distribution also contains
a shell script called @command{yacc} that invokes Bison with the @option{-y}
option.
+@sp 1
+
+The exit status of @command{bison} is:
+@table @asis
+@item 0 (success)
+when there were no errors. Warnings, which are diagnostics about dubious
+constructs, do not change the exit status, unless they are turned into
+errors (@pxref{-Werror,,@option{-Werror}}).
+
+@item 1 (failure)
+when there were errors. No file was generated (except the reports generated
+by @option{--verbose}, etc.). In particular, the output files that possibly
+existed were not changed.
+
+@item 63 (mistmatch)
+when @command{bison} does not meet the version requirements of the grammar
+file. @xref{Require Decl}. No file was generated or changed.
+@end table
+
+
@menu
* Bison Options:: All the options described in detail,
in alphabetical order by short options.
@@ -10997,6 +11017,7 @@ instance, @option{-Wno-yacc} will hide the warnings
about
POSIX Yacc incompatibilities.
@item -Werror
+@anchor{-Werror}
Turn enabled warnings for every @var{category} into errors, unless they are
explicitly disabled by @option{-Wno-error=@var{category}}.
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