Mailing-List: contact cygwin-help@sourceware.cygnus.com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@sources.redhat.com Delivered-To: mailing list cygwin@sources.redhat.com Message-ID: <000f01c0b8c4$a881e600$822aeda9@ucdavis.edu> Reply-To: "Wei Ku" From: "Wei Ku" To: "Robert Collins" , References: <002501c0b8b9$f5438f80$822aeda9@ucdavis.edu> <00e601c0b8c3$dfd0f200$0200a8c0@lifelesswks> Subject: Re: pthread in Cygwin? (attempt to build ghostscript 6.5) Date: Thu, 29 Mar 2001 18:53:54 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 X-OriginalArrivalTime: 30 Mar 2001 02:53:54.0656 (UTC) FILETIME=[A881E600:01C0B8C4] > > In the last step of building ghostscript 6.5 (after some minor > modifications > > in a few places) I encountered the following error message: > > > > (while gcc -fno-common -o ./bin/gs ./obj/gs.o ./obj/gp_getnv.o ...) > > > > ./obj/gp_psync.o(.text+0x49):gp_psync.c: undefined reference to > > `pthread_cond_init' > > ./obj/gp_psync.o(.text+0x7a):gp_psync.c: undefined reference to > > `pthread_cond_destroy' > > ./obj/gp_psync.o(.text+0xda):gp_psync.c: undefined reference to > > `pthread_cond_wait' > > ./obj/gp_psync.o(.text+0x148):gp_psync.c: undefined reference to > > `pthread_cond_signal' > > ./obj/gp_psync.o(.text+0x28e):gp_psync.c: undefined reference to > > `pthread_attr_setdetachstate' > > > > I have /usr/include/pthread.h but can not find libpthread.a anywhere. > Condition variations aren't implemented in the current 1.1.8-2 release > of cygwin. Try the latest snapshot. > > I've implemented pthread_attr_setdetachstate, but I think it's bundled > in with a patch that affects newlib so it's not available yet. See > http://sources.redhat.com/ml/cygwin/2001-03/msg01202.html for a clean > workaround. Thanks for the useful information. > Note: if your "minor" modificationsincluded defining macros or > prototypes to replace system functions that aren't present, I'm not > surprised you got these link errors. No, I carefully try to avoid that sort of modification. The puzzle is that these functions are in the header files but the corresponding library file is missing. Wei -- Want to unsubscribe from this list? Check out: http://cygwin.com/ml/#unsubscribe-simple