Mail Archives: cygwin/2005/10/08/23:51:49
On Sat, 8 Oct 2005, Joost Kraaijeveld wrote:
> The problem is that configure seems to think that there *is* support
> "long double math": the test succeeds and HAVE_ASINL (and all other
> double math) is defined. So both compile and link appear to be succesful
> as far as configure is concerned.
>
> Before choosing a solution, I want to understand why the problem is
> occuring.
>
> According to the cited mail however, that is because configure checks
> the availibility of "long double math" with a short piece of code,
> supplying *it's own* function definition (and not using e.g. math.h) and
> linking with *some* libraries. Because I do not understand how configure
> is doing that (I have looked into the macros but failed to understand
> them), I do not know what exactly the code is configure is using or to
> which libraries configure links the executable.
FYI (and this is not Cygwin-specific), you can find the exact code run by
configure (with the exact compile command and the output) in config.log.
No need to expand the autoconf macros by hand.
HTH,
Igor
--
http://cs.nyu.edu/~pechtcha/
|\ _,,,---,,_ pechtcha AT cs DOT nyu DOT edu
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|,4- ) )-,_. ,\ ( `'-' Igor Pechtchanski, Ph.D.
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