Re: [matplotlib-devel] Re: Problem building CVS version on OS X

[Tom L. <lo...@as...>]

Andrew,

Thanks for the suggestions, which proved helpful---transforms now
builds; the rest of the build is proceeding and my fingers are
crossed.  Here's what I found/did.

Including math.h did not help.  Poking around with man and in /usr/include
revealed that isnan is defined as a macro, not a function; math.h includes 
/usr/include/architecture/ppc/math.h and the definition is in there.  I
did some googling and found one other case of this causing a problem;
a workaround is provided here:

http://www.ssl.berkeley.edu/pipermail/boinc_dev/2004-October/000529.html

It involves including math.h and defining a prototype for isnan
explicitly.  I tried this and the build failed, but with a slightly
different error:

gcc: src/_na_transforms.cpp
src/_na_transforms.cpp: In member function `Py::Object 
   Bbox::update_numerix(const Py::Tuple&)':
src/_na_transforms.cpp:452: error: `isnan' not declared
src/_na_transforms.cpp: In member function `Py::Object 
   Bbox::update_numerix(const Py::Tuple&)':
src/_na_transforms.cpp:452: error: `isnan' not declared

At this point, I commented out the "using..." line that was just
added (reasoning that isnan is now in the file's namespace), and
the build succeeded.

I don't know the build process well enough to know if this can be
easily automated in a cross-platform manner, or if there is a 
better solution.

As I write the numarray and scipy builds of _transforms.cpp have
both succeeded.  Hopefully that's the only stumbling block.

-Tom



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