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[Bug bootstrap/51388] Configure failure to detect unsupported warning options for non-bootstrap builds (including cross builds)
- From: "egallager at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sat, 22 Jul 2017 16:58:45 +0000
- Subject: [Bug bootstrap/51388] Configure failure to detect unsupported warning options for non-bootstrap builds (including cross builds)
- Auto-submitted: auto-generated
- References: <bug-51388-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51388
Eric Gallager <egallager at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
CC| |egallager at gcc dot gnu.org
Resolution|--- |FIXED
--- Comment #13 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to Andreas Schwab from comment #11)
> Does this work?
>
> diff --git a/config/warnings.m4 b/config/warnings.m4
> index 292e5a4..b64b594 100644
> --- a/config/warnings.m4
> +++ b/config/warnings.m4
> @@ -32,7 +32,7 @@ for real_option in $1; do
> # Do the check with the no- prefix removed since gcc silently
> # accepts any -Wno-* option on purpose
> case $real_option in
> - -Wno-*) option=-W`expr $real_option : '-Wno-\(.*\)'` ;;
> + -Wno-*) option=-W`expr x$real_option : 'x-Wno-\(.*\)'` ;;
> *) option=$real_option ;;
> esac
> AS_VAR_PUSHDEF([acx_Woption], [acx_cv_prog_cc_warning_$option])
(In reply to Andreas Tobler from comment #12)
> Seems to work. At least in stage one, compiling gcc.
>
> Thank you!
Upon checking current config/warnings.m4, it looks like this patch was applied,
so I'm closing this bug as FIXED.