Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com Message-ID: <20030913205923.16182.qmail@web21403.mail.yahoo.com> Date: Sun, 14 Sep 2003 06:59:23 +1000 (EST) From: =?iso-8859-1?q?Danny=20Smith?= Subject: Re: Available for testing: gcc-3.3.1-1 and gcc-mingw-20030911-1 To: cygwin AT cygwin DOT com MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit 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' >> >>Apparently not. >> >Ok, let me rephrase: Do you consider this a problem worth fixing? 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 http://search.yahoo.com.au - Yahoo! Search - Looking for more? Try the new Yahoo! Search -- 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/