Re: [Pytables-users] pytables-latest win32 Python-2.4

[Ivan V. i B. <iv...@ca...>]

On Tue, Mar 15, 2005 at 02:40:37PM -0700, Waldemar Osuch wrote:
> Recently I have set up my machine for compiling pytables on WindowsXP
> with Python-2.4.
> [...]
> building 'tables.hdf5Extension' extension
> C:\Program Files\Microsoft Visual Studio .NET 2003\Vc7\bin\cl.exe /c /nologo /Ox
>  /MD /W3 /GX /DNDEBUG -DWIN32=1 -DNDEBUG=1 -D_HDF5USEDLL_=1 -Ic:\gnu\src\hdf5\in
> clude -Ic:\python\python24\include -Ic:\python\python24\PC /Tcsrc/typeconv.c /Fo
> build\temp.win32-2.4\Release\src/typeconv.obj
> typeconv.c
> src\typeconv.c(45) : error C2036: 'void *' : unknown size
> src\typeconv.c(51) : warning C4013: 'lround' undefined; assuming
> extern returning int
> src\typeconv.c(62) : error C2036: 'void *' : unknown size
> error: command '"C:\Program Files\Microsoft Visual Studio .NET
> 2003\Vc7\bin\cl.exe"' failed with exit status 2
> 
> I completely understand that pytables-latest is just a development
> version and it can fail.
> The only purpose of this email is to indicate that there is a potential problem.

Thanks a lot for your mail.  The pointer problems seem to be related
with the strange way MSVC has to do pointer arithmetic.  The missing
'lround' function is part of the C99 standard, which is not supported by
MSVC.

I have attached a simple patch which makes pointer arithmetic in the MS
way and defines an 'lround' function if C99 is not supported.  Could you
please apply it to src/typeconv.c and check whether it works?  I am also
interested in checking that tests/test_timetype.py works right.

Thanks a lot.


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