The OP is trying to build Perl itself, not use it; hence the need for long double support functions...
--hsm On Sun, Apr 10, 2011 at 4:25 AM, Sisyphus <sisyph...@optusnet.com.au> wrote: > > ----- Original Message ----- From: "marco atzeri" > >>> On a Linux system that I have access to, I see that those functions >>> are in /lib/libm.* but cygwin's /lib/libm.* still seems to lack them. >>> Is there any work around or alternate version ofthis lib that actually >>> has these functions. I honestly do not mean to be rude, but how >>> difficult is it to impliment these functions which seem so common in >>> most unix-like systems? >> >> It is not overcomplicated to implement it, but it takes time and >> someone to do it. >> When I implemented all the complex functions (cabs, ccos..) I spent one >> month >> to make it right. A more capable guy will take less surely, but as >> mention I see little >> benefit moving from 64 to 80 bits so I was not interested to implement it. >> > > I sense an opportunity here to plug (to the op) the Math::MPFR perl module - > for which the gmp and mpfr C libraries are required. > I guess one could also use Math::BigFloat, but I assume the op has already > considered (and rejected) that option - the performance hit incurred by its > use has always discouraged me. > Perhaps he has also already considered and rejected Math::MPFR, but it seems > to me to be by far the best option for achieving added precision with > floating point numbers - at least until such time as building perl with > -Duselongdouble has been facilitated. > > Cheers, > Rob > > > > -- > 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
