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Re: libm trigonometric functions and i387



At Tue, 24 Feb 2009 11:59:24 -0500, Taylor R Campbell wrote:
Subject: libm trigonometric functions and i387
> 
> This, I think, is a mistake, first of all: programmers who want their
> programs to use the i387's fast and loose trigonometric routines can
> always compile their programs with -ffast-math and -mfancy-math-387,
> but right now the default is to give wildly bogus answers.  Setting
> aside, though, the issue of whether NetBSD's libm should be fast or
> correct, how do I tell the linker that I want libm, not libm387,
> without editing /etc/ld.so.conf?

I'm a huge fan of always using static linking.

What happens when you static-link your program, without explicitly
specifying "-lm387" before "-lm"?

Do you have a small demonstration program you can post as an example
test of what you're trying to do?

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