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Date: | Wed, 24 Jun 2009 19:40:39 +0100 |
From: | Dave Korn <dave DOT korn DOT cygwin AT googlemail DOT com> |
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To: | cygwin AT cygwin DOT com |
Subject: | Re: 1.7 winbase.h (ilockcmpexch) compile error |
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Brian Ford wrote: > I'm trying to build Cygwin 1.7 from CVS to debug an ImageMagick problem on > server 2008 that causes an access violation in cygwin1.dll. Doe anyone > know the work around for this issue? > > g++ (GCC) 3.4.4 (cygming special, gdc 0.12, using dmd 0.125) > > winsup/cygwin/winbase.h: In > member function `int pthread_mutex::_trylock(pthread*)': > winsup/cygwin/winbase.h:59: > warning: volatile register variables don't work as you might wish > winsup/cygwin/winbase.h:63: > error: can't find a register in class `AREG' while reloading `asm' > > I presume it is related to this change: > > http://cygwin.com/ml/cygwin-patches/2009-q2/msg00072.html > > but I haven't had time to dig into the full problem. Thanks for any help > available. Argh. Try hacking out the 'register' and '__asm ("%eax")' from the declaration of the 'ret' variable on line 59. Send me the generated thread.s file offlist after finishing the build with --save-temps in the CFLAGS and I'll check that the codegen is correct. (Haven't used 3.x to build the DLL in ages myself.) cheers, DaveK -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
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