Date: Wed, 28 May 2008 01:43:35 +0200 From: Erik Trulsson <ertr1013@student.uu.se> To: Maxim Sobolev <sobomax@FreeBSD.org> Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org, Xin LI <delphij@FreeBSD.org>, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/include string.h src/lib/libc/string Makefile.inc memchr.3 memrchr.c src/sys/sys param.h Message-ID: <20080527234335.GA24995@owl.midgard.homeip.net> In-Reply-To: <483C7FF2.6000607@FreeBSD.org> References: <200805272004.m4RK4SZt029194@repoman.freebsd.org> <483C7FF2.6000607@FreeBSD.org>
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On Tue, May 27, 2008 at 02:41:06PM -0700, Maxim Sobolev wrote: > Xin LI wrote: > > delphij 2008-05-27 20:04:27 UTC > > > > FreeBSD src repository > > > > Modified files: (Branch: RELENG_6) > > include string.h > > lib/libc/string Makefile.inc memchr.3 > > sys/sys param.h > > Added files: (Branch: RELENG_6) > > lib/libc/string memrchr.c > > Log: > > MFC: Add memrchr(3). > > I think this is not very good idea to MFC that into stable releases 6.x > and 7.x. The reason is that configure scripts for some packages might > detect up this API and enable it. Which means that some binary-only > packages build for say 6.4 won't work on 6.3 and down. AFAIK, both > forward and backward compatibility is required (or at least desired?) > for stable branches. No, it isn't. Backwards compatibility (in the sense that stuff that worked on 6.x should still work on 6.x+1) is largely required unless there is some very good reason to break compatibility (such very good reasons are quite rare.) Compatibility in the other direction (that everything that works on 6.x+1 will also work on 6.x), while obviously somewhat desirable, has AFAIK never been required and certainly not guaranteed. Such compatibility has almost certainly already been broken several times on all the -STABLE branches by now. > > While it's "nice-to-have" feature, I see no pressing need to MFC this > interface. Nor is there any pressing need not to MFC it. -- <Insert your favourite quote here.> Erik Trulsson ertr1013@student.uu.se
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