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Re: Unbreak bootstrap with GCC 4.3 (PR bootstrap/77751)


On Tue, Sep 27, 2016 at 11:40 AM, Marek Polacek <polacek@redhat.com> wrote:
> GCC 4.3 stupidly errors on this with
> error: unrecognized command line option "-Wno-implicit-fallthrough"
> so use -Wno-error instead.
>
> Bootstrapped on x86_64-linux, ok for trunk?

Ok for trunk now to unbreak peoples bootstrap.  We can improve on this
later if we want.

Richard.

> 2016-09-27  Marek Polacek  <polacek@redhat.com>
>
>         PR bootstrap/77751
>         * Makefile.in (insn-attrtab.o-warn, insn-dfatab.o-warn,
>         insn-latencytab.o-warn, insn-output.o-warn, insn-emit.o-warn): Use
>         -Wno-error instead of -Wno-implicit-fallthrough.
>
> diff --git gcc/Makefile.in gcc/Makefile.in
> index e8559cb..ff12908 100644
> --- gcc/Makefile.in
> +++ gcc/Makefile.in
> @@ -218,11 +218,11 @@ libgcov-merge-tool.o-warn = -Wno-error
>  gimple-match.o-warn = -Wno-unused
>  generic-match.o-warn = -Wno-unused
>  dfp.o-warn = -Wno-strict-aliasing
> -insn-attrtab.o-warn = -Wno-implicit-fallthrough
> -insn-dfatab.o-warn = -Wno-implicit-fallthrough
> -insn-latencytab.o-warn = -Wno-implicit-fallthrough
> -insn-output.o-warn = -Wno-implicit-fallthrough
> -insn-emit.o-warn = -Wno-implicit-fallthrough
> +insn-attrtab.o-warn = -Wno-error
> +insn-dfatab.o-warn = -Wno-error
> +insn-latencytab.o-warn = -Wno-error
> +insn-output.o-warn = -Wno-error
> +insn-emit.o-warn = -Wno-error
>
>  # All warnings have to be shut off in stage1 if the compiler used then
>  # isn't gcc; configure determines that.  WARN_CFLAGS will be either
>
>         Marek


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