Date: Thu, 25 Oct 2007 13:10:13 -0600 From: Scott Long <scottl@samsco.org> To: d@delphij.net Cc: Andrey Chernov <ache@nagual.pp.ru>, src-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG, cvs-src@FreeBSD.ORG Subject: Re: cvs commit: src/lib/libc/locale utf8.c Message-ID: <4720EA15.40002@samsco.org> In-Reply-To: <4720E904.2090704@delphij.net> References: <200710150951.l9F9pUm7026506@repoman.freebsd.org> <4720B30F.4040903@samsco.org> <20071025151707.GA11398@nagual.pp.ru> <4720E0AF.1010004@samsco.org> <4720E904.2090704@delphij.net>
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LI Xin wrote: > Scott Long wrote: >> Andrey Chernov wrote: >>> On Thu, Oct 25, 2007 at 09:15:27AM -0600, Scott Long wrote: >>>> Andrey A. Chernov wrote: >>>>> ache 2007-10-15 09:51:30 UTC >>>>> FreeBSD src repository >>>>> Modified files: >>>>> lib/libc/locale utf8.c Log: >>>>> Add comment explaining __mb_sb_limit trick here. >>>>> Revision Changes Path >>>>> 1.16 +5 -0 src/lib/libc/locale/utf8.c >>>> When is the ABI damage from this going to be fixed? >>> There is no ABI damage in -current. >>> >> Exposing the __mb_sb_limit symbol has instantly created a need >> to have a compat7x package, and is causing many users problems >> during upgrades and normal operations. It may not be a problem >> for you, Andre, but it's a problem for everyone else. Please >> respect this and fix it. > > Well, I think the problem is not exposing a new symbol by itself, but > __mb_sb_limit is being used in _ctype.h, in a form of __inline > functions. Therefore, the change will break new binaries running on > older systems. Personally I think this is acceptable, but maybe we > could have a better way to avoid this, because the binaries are no > longer backward compatible (i.e. you may have trouble running a program > compiled for 6.3-RELEASE on 6.2-RELEASE, if it uses locale bits). If this is true, then it directly violates the API/ABI compatability guidelines that were developed and agreed to by the project in 2005. Scott
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