Date: Wed, 24 Aug 2016 15:12:18 -0500 From: Eric van Gyzen <vangyzen@FreeBSD.org> To: Ed Schouten <ed@nuxi.nl>, Bryan Drewery <bdrewery@freebsd.org> Cc: svn-src-head@freebsd.org, jilles@freebsd.org, svn-src-all@freebsd.org, src-committers <src-committers@freebsd.org>, Ed Schouten <ed@freebsd.org> Subject: Re: svn commit: r303988 - head/lib/libc/gen Message-ID: <62adcb77-490e-0691-0942-9218c1d55b68@FreeBSD.org> In-Reply-To: <CABh_MKmg9XqSg44P8i_S0jit_2tV8-Zyknu6gefMaxXN9piyxQ@mail.gmail.com> References: <201608120703.u7C73whf007189@repo.freebsd.org> <d23b295a-1902-193c-dee6-ba49ebd77280@FreeBSD.org> <9ae1c2eb-02ad-b8fe-6aff-7e17e955607a@FreeBSD.org> <CABh_MKkxD3OTF7VO9Rq_eZyqHPN%2BxVws3q3dsH2R3DfZ343kFw@mail.gmail.com> <2632f5f8-d765-3df7-74d7-da878eb4b7a8@FreeBSD.org> <CABh_MKm_YQ3bJD19Cz1vBCGr=YxuzctXV6F1iqMASkSx-PsVMw@mail.gmail.com> <d606b841-dda9-488e-ab35-a9289668d2c4@FreeBSD.org> <CABh_MKmg9XqSg44P8i_S0jit_2tV8-Zyknu6gefMaxXN9piyxQ@mail.gmail.com>
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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
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