Hello, (and attn: Marco Atzeri)
I use Cygwin's libntl package in my software, and some users are reporting illegal instruction errors which appear to be coming from Cygwin's NTL, which was built with native optimizations enabled. It should probably be configured with ./configure NATIVE=off while possibly still selecting at least some arch-specific optimizations, such as CXXFLAGS=-mavx. I haven't figured out exactly which features these users' CPUs are missing but I've seen problems in the past with the PCLMUL instructions. Thanks, Madison -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
