[Numpy-discussion] Installation info

David Cournapeau david@ar.media.kyoto-u.ac...
Tue Jun 3 21:49:28 CDT 2008

Robert Kern wrote:
> The presence of these functions should have been detected by the
> configuration process of numpy. HAVE_FREXPF and HAVE_LDEXPF would have
> been #define'd if we had detected them correctly. It is possible that
> our configuration process for this does not work correctly with VS
> 2008. From a clean checkout, can you please do the build again and
> copy-and-paste everything printed to the terminal?

As an aside, I don't understand how the configuration is supposed to 
work there: why do we define HAVE_LONGDOUBLE, etc...  for a serie of 
functions ? I don't understand why for example testing for expf is 
supposed to be enough to guarantee the presence of the whole float 
functions (HAVE_FLOAT_FUNCS). What is the rationale for that ? Why not 
testing for every function we are using ?


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