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Re: [PATCH] Deprecate -frepo option.


On Fri, Jun 21, 2019 at 04:04:00PM +0200, Martin Liška wrote:
> On 6/21/19 1:58 PM, Jakub Jelinek wrote:
> > On Fri, Jun 21, 2019 at 01:52:09PM +0200, Martin Liška wrote:
> >> On 6/21/19 1:47 PM, Jonathan Wakely wrote:
> >>> On Fri, 21 Jun 2019 at 11:40, Martin Liška wrote:
> >>>> Yes, I would be fine to deprecate that for GCC 10.1
> >>>
> >>> Would it be appropriate to issue a warning in GCC 10.x if the option is used?
> >>
> >> Sure. With the patch attached one will see:
> >>
> >> $ gcc -frepo /tmp/main.cc -c
> >> gcc: warning: switch ‘-frepo’ is no longer supported
> >>
> >> I'm sending patch that also removes -frepo tests from test-suite.
> >> I've been testing the patch.
> > 
> > IMHO for just deprecation of an option you don't want to remove it from the
> > testsuite, just match the warning it will generate in those tests, and
> > I'm not convinced you want to remove it from the documentation (rather than
> > just saying in the documentation that the option is deprecated and might be
> > removed in a later GCC version).
> 
> Agree with you. I'm sending updated version of the patch.
> Patch can bootstrap on x86_64-linux-gnu and survives regression tests.

I'm also not convinced about the Deprecated flag, seems like that is a flag
that we use for options that have been already removed.
So, instead there should be some proper warning in the C++ FE for it,
or just Warn.

	Jakub


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