I am experiencing 100% reproducible SIGSEGVs in ld if I use link time optimization (-flto). See https://cygwin.com/ml/cygwin/2014-08/msg00439.html
What actually helped is to go back to gcc 4.8.3-2 or use experimental 4.9.0. Maybe this works for you too although the problem is actually not ld itself but the gcc linker plugin cyglto_plugin.dll. Corinna suspects that not all of DJ's and Yaakov's changes were actually merged into 4.8.3-3 -Christoph -----Ursprüngliche Nachricht----- Von: cygwin-ow...@cygwin.com [mailto:cygwin-ow...@cygwin.com] Im Auftrag von Daniel R. Grayson Gesendet: Donnerstag, 18. September 2014 02:29 An: cygwin@cygwin.com Betreff: Re: ld crashes with segmentation fault when linking with libmpir.a On Wed, Sep 17, 2014 at 6:00 PM, JonY <10wa...@gmail.com> wrote: > On 9/18/2014 03:20, Daniel R. Grayson wrote: >> ld crashes with segmentation fault when linking with libmpir.a >> >> To reproduce: >> >> wget http://mpir.org/mpir-2.6.0.tar.bz2 >> tar xjf mpir-2.6.0.tar.bz2 >> cd mpir-2.6.0 >> ./configure --build=x86_64-pc-cygwin >> make >> ld -u __gmpn_gcdext .libs/libmpir.a >> > > What are you trying to accomplish? I suspect this will not work on > Windows. > > > This bug prevents me from linking our program under cygwin. The program is Macaulay2, see http://macaulay2.com/. I'm working now on a work-around involving using libgmp instead of libmpir, and I expect that to be successful. I'm not sure what you mean when you say it will not work under Windows, since my bug report is about a program crashing, and the program should work, i.e., "ld" should link object files together or give an error message. -- 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 -- 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
