More C type errors by default for GCC 14
Thu May 11 22:30:20 GMT 2023
On 5/11/23 2:12 AM, Eli Zaretskii wrote:
>> Date: Wed, 10 May 2023 23:14:20 -0400
>> From: Eli Schwartz via Gcc <email@example.com>
>> Second of all, why is this GCC's problem? You are not a user of GCC,
> He is telling you that removing support for these old features, you
> draw users away from GCC and towards proprietary compilers.
> One of the arguments in this thread _for_ dropping that support was
> that by not rejecting those old programs, GCC draws some users away
> from GCC. He is telling you that this change will, perhaps, draw some
> people to GCC, but will draw others away from GCC. The difference is
> that the former group will start using Clang, which is still free
> software (at least some of its versions), whereas the latter group has
> nowhere to go but to proprietary compilers. So the FOSS community
> will have suffered a net loss. Something to consider, I think.
Except this thread is not arguing to remove support for -std=c89 as far
as I can tell?
The argument is that on newer values for -std (such as the one GCC
defaults to if no -std is specified), GCC should adapt its diagnostics
better for the std in question. These newer -stds should stop issuing a
warning diagnostic, and begin issuing an error diagnostic instead.
The latter group most certainly does have somewhere to go other than
proprietary compilers -- it can go to GCC with -std=c89 (or -Wno-* or
-fpermissive or -fold-code or whatever the case may be).
But I do not understand the comparison to -traditional. Which was
already removed, and already resulted in, apparently, at least one group
being so adamant on not-C that it switched to a proprietary compiler.
Okay, understood. But at this point that group is no longer users of
So what is the moral of this story? To avoid repeating the story of
-traditional, and instead make sure that users of -std=c89 always have a
flag they can use to indicate they are writing old c89 code?
If so, then as far as I can tell, that was the original plan? The flag
already exists, even. And the original proposal was to provide another
flag that doesn't even restrict you to c89.
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