Date: Wed, 24 Sep 2003 15:29:34 -0700 From: Peter Wemm <peter@wemm.org> To: Robert Watson <rwatson@freebsd.org> Cc: Freebsd Current <current@freebsd.org> Subject: Re: Fixing -pthreads (Re: ports and -current) Message-ID: <20030924222934.6C9362A7EA@canning.wemm.org> In-Reply-To: <Pine.NEB.3.96L.1030924091657.60986D-100000@fledge.watson.org>
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Robert Watson wrote: > Based on the results seen thus far, my preference would really be for: > > (1) Keep -pthread, make it imply -lpthread, saving a lot of hassle. Regarding the switch, the gcc folks have been adding -pthread as the 'standard' way to enable pthreads across the board for all platforms. On some systems it also implies -D_REENTRANT and other flags as well. -pthread cannot go away. We'd just be hurting ourselves for no good reason, especially when the rest of the world is syncing up with us. Samples from http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog: .... * config/linux.h (LIB_SPEC): If -pthread, add -lpthread even if -shared. * config/alpha/linux-elf.h (LIB_SPEC): Likewise. .... * config/ia64/hpux.h: Define CPP_SPEC to set appropriate #defines for -pthread. Add -lpthread to LIB_SPEC when -pthread. In both cases take -mt as a synonym for -pthread for acc compatibility. ... * config/netbsd.h: Update copyright years. (NETBSD_CPP_SPEC): Define _REENTRANT and _PTHREADS if -pthread is specified on the command line. ... Cheers, -Peter -- Peter Wemm - peter@wemm.org; peter@FreeBSD.org; peter@yahoo-inc.com "All of this is for nothing if we don't go to the stars" - JMS/B5
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