Hi again, Sorry if I'm spamming the list too much, but I've encountered another pretty serious and unfortunate issue with Cython on Cygwin.
The problem now is that many of libm long double functions like sqrtl, tanl, etc. are missing on Cygwin (missing from newlib to be specific). I think this is a previously known issue, but nothing's ever really been done about it. Well, to be clear, sometimes they're present, but only when sizeof(double) == sizeof(long double). However on 64-bit Cygwin sizeof(long double) == 16, so the functions are simply not defined. This seems to be due to lack of interest / effort: https://www.cygwin.com/ml/cygwin/2011-04/msg00231.html That post is 5 years old, but I can't find any evidence that this has changed. There are quite a few tests in Cygwin's test suite that test long double support. I guess what I'm asking is what would be the best thing to do about it. I could just skip those tests on Cygwin, though I'm not sure the best way to go about skipping an entire test for a given platform. More generally though, outside the context of testing, this means Cygwin will sometimes generate code that cannot be compiled on this platform, and a question arises as to what to do about that. I have some thoughts, but am not sure if it's worth discussing any further or not. Thanks, Erik _______________________________________________ cython-devel mailing list cython-devel@python.org https://mail.python.org/mailman/listinfo/cython-devel
