Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com X-Injected-Via-Gmane: http://gmane.org/ To: cygwin@cygwin.com From: Rolf Campbell Subject: Re: Available for testing: gcc-3.3.1-1 and gcc-mingw-20030911-1 Date: Sat, 13 Sep 2003 19:07:37 -0400 Lines: 29 Message-ID: References: <20030913205923.16182.qmail@web21403.mail.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@sea.gmane.org User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.5b) Gecko/20030723 Thunderbird/0.1 X-Accept-Language: en-us, en In-Reply-To: <20030913205923.16182.qmail@web21403.mail.yahoo.com> Danny Smith wrote: > On Sat, Sep 13, 2003 at 12:43:38PM -0400, Rolf Campbell wrote: >>Christopher Faylor wrote: >>>On Sat, Sep 13, 2003 at 12:20:39PM -0400, Rolf Campbell wrote: >>>>Is this new gcc supposed to be ABI compatible with 3.2.x? Because I >>>>can't link in libraries compiled with an older version of cygwin g++. >>>> >>>>/c/temp/cppunit-1.8.0/src/cppunit/TestSucessListener.cpp: undefined >>>>reference to `___gxx_personality_v0' >>>>/c/temp/cppunit-1.8.0/src/cppunit/../../include/cppunit/TestListener.h:33: >>>>undefined reference to `__Unwind_Resume' > > gcc 3.2-3 used Dwarf2 exceptions, which worked most of the time. (In fact, > I don't recall any bug reports at all on cygwin list). But it didn't work > with w32api callbacks, nor with some combinations of compiler switches > (notably -mcpu=i586 or -mno-accumulate-outgoing-args and > -fomit-frame-pointer). > > cygwin gcc-3.3.1 uses setjmp-longjmp exception mechanism, > mingw does too and has done since gcc-3.2.1. > > The two undefined references are Dwarf2 specific. The corresponding > SjLj symbols are __gxx_personality_sj0 and __Unwind_SjLj_Resume. > > Danny Ok, are there command-line switches to change the exception mechanism used? I would like to be able to use cygwin gcc 3.2 to build libraries that work with cygwin gcc 3.3. -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/