[Numpy-discussion] Solaris Sparc build broken

[Michael Droettboom]

Forgot to attach the patch.

Mike

Michael Droettboom wrote:
> Thanks.  Behind that, however, it runs into this compiler shortcoming:
>
> cc: build/src.solaris-2.8-sun4u-2.5/numpy/core/src/npymath/npy_math.c
> "numpy/core/src/npymath/npy_math_private.h", line 229: invalid type 
> for bit-field: manh
> "numpy/core/src/npymath/npy_math_private.h", line 230: invalid type 
> for bit-field: manl
>
> It seems that Sun compilers (before Sun Studio 12, C compiler 5.9), 
> don't support bit fields larger than 32-bits.  Welcome to my world :)
>
> You can see a discussion of this here:
>
> http://www.mail-archive.com/tools-discuss@opensolaris.org/msg02634.html
>
> and the release notes for Sun C compiler 5.9 here:
>
> http://docs.sun.com/source/820-4155/c.html
>
> The best solution I've been able to dream up is to use a macro to get 
> at the manh bitfield on these older compilers.  This fix does seem to 
> pass the "test_umath.py" unit tests.  It's not as clean as the 
> bit-field method, but it should be more portable.  You can see what 
> I'm getting at in the attached (rough) patch.
>
> Can you think of a better solution?  If this is *the* solution, we may 
> want to add getters/setters for all the members (sign, exp, manl) and 
> fix nextafterl in terms of those, just for consistency.
>
> Cheers,
> Mike
>
> David Cournapeau wrote:
>> On Wed, Nov 11, 2009 at 6:18 AM, Michael Droettboom <mdroe at stsci.edu> 
>> wrote:
>>  
>>> I don't know if your 'long double' detection code is complete yet, 
>>> but I
>>> thought I'd share the current build output on one of our Solaris
>>> machines.  It looks like it may just be a typo difference between
>>> 'IEEE_QUAD_BE' in long_double_representation() and 
>>> 'IEEE_QUAD_16B_BE' in
>>> setup.py, but I wanted to confirm.
>>>     
>>
>> Yes, you're right - I don't have any machine with a 128 bits long
>> double type, so I let the typo slipped.
>>
>> Could you try last revision (r7726) ?
>>
>> David
>> _______________________________________________
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>>   
>

-- 
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA

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