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Subject: Re: svn commit: r303988 - head/lib/libc/gen
To: Ed Schouten <ed@nuxi.nl>, Bryan Drewery <bdrewery@freebsd.org>
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Cc: svn-src-head@freebsd.org, jilles@freebsd.org, svn-src-all@freebsd.org,
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From: Eric van Gyzen <vangyzen@FreeBSD.org>
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Date: Wed, 24 Aug 2016 15:12:18 -0500
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On 08/24/2016 15:01, Ed Schouten wrote:
> 2016-08-24 21:53 GMT+02:00 Bryan Drewery <bdrewery@freebsd.org>:
>> Is it possible to cause the use of these old prototypes to print a
>> warning and note that they are deprecated/unsafe?
> 
> That's a good question. In theory, we could annotate these functions
> with __attribute__((__deprecated__)):
> 
> https://gcc.gnu.org/onlinedocs/gcc-3.3.4/gcc/Type-Attributes.html
> 
> But I'm actually too afraid to use it. In the worst case it may cause
> the compiler to generate a warning even when basename()/dirname() is
> used correctly, as __old_* will still be part of the compiled
> expression.

Could __warn_references() be used, as libc currently does for gets() and
others?

Eric