[SciPy-dev] Weave, numpy, external libraries and conflicting typedefs

[Travis Oliphant]

Prabhu Ramachandran wrote:

>>>>>>"Travis" == Travis Oliphant <oliphant.travis at ieee.org> writes:
>>>>>>            
>>>>>>
>
>    >> Earlier, with Numeric, arrayobject.h did not define typedefs
>    >> for the Int32 and so on.  However, numpy defines several
>    >> typedefs that conflict with the typedefs in Ygl.
>
>    Travis> You need to #define PY_ARRAY_TYPES_PREFIX ygl_
>
>    Travis> or something like that before including arrayobject.h
>
>Thanks!  I tried to do this but there are more problems.
>arrayobject.h defines MAX/MIN macros.  My own code defines these as
>generic functions.  I can work around those easily, and after I did
>that I ended up with compilation errors below (where foo.cpp is the
>weave generated code):
>
>foo.cpp: In member function 'void numpy_type_handler::conversion_numpy_check_type(PyArrayObject*, int, const char*)':
>foo.cpp:494: error: expected primary-expression before ')' token
>foo.cpp:494: error: 'Bool' was not declared in this scope
>foo.cpp:494: error: expected primary-expression before 'int'
>foo.cpp:494: error: expected primary-expression before 'int'
>foo.cpp:494: error: expected `)' before 'PyArray_API'
>[...]
>  
>
This should be fixed in SVN.  Basically, we can't use the defined types 
in the C-API.


Also, (in latest SVN)  the MAXMIN macros can be avoided using

#define PYA_NOMAXMIN

before including arrayobject.h

-Travis