[MacPorts] #28346: cannot build py27-numpy as i386 on SnowLeopard

[MacPorts]

#28346: cannot build py27-numpy as i386 on SnowLeopard
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 Reporter:  dumont.guillaume@…          |       Owner:  macports-tickets@…                   
     Type:  defect                      |      Status:  new                                  
 Priority:  Normal                      |   Milestone:                                       
Component:  ports                       |     Version:  1.9.2                                
 Keywords:                              |        Port:  py27-numpy                           
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Old description:

> Hi,
>
> I am trying to build numpy with python 2.7 as a 32 bit since I would like
> to use the wxpython port and the numpy port with the same version of
> python.
>
> I tried to
>
> port install py27-numpy -atlas +universal
>
> with the default build_arch setting and with build_arch set to i386. The
> install goes trough without any errors and I can import numpy without any
> problem if python is running in x86_64 mode but if I start python with
> the command
>
> arch -i386 python
>
> and try to import numpy I always get
>
> File
> "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7
> /site-packages/numpy/core/__init__.py", line 5, in <module>
>     import multiarray
> ImportError:
> dlopen(/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7
> /site-packages/numpy/core/multiarray.so, 2): no suitable image found.
> Did find:
> /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7
> /site-packages/numpy/core/multiarray.so: mach-o, but wrong architecture
>
> If I run lipo on this library I get:
>
> Non-fat file:
> /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7
> /site-packages/numpy/core/multiarray.so is architecture: x86_64
>
> which seems to tell me that this library was built as 64 bit regardless
> of the build_arch setting.
>
> Is this a known problem?
>
> Thanks

New description:

 Hi,

 I am trying to build numpy with python 2.7 as a 32 bit since I would like
 to use the wxpython port and the numpy port with the same version of
 python.

 I tried to

 {{{
 port install py27-numpy -atlas +universal
 }}}

 with the default build_arch setting and with build_arch set to i386. The
 install goes trough without any errors and I can import numpy without any
 problem if python is running in x86_64 mode but if I start python with the
 command

 {{{
 arch -i386 python
 }}}

 and try to import numpy I always get

 {{{
 File
 "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7
 /site-packages/numpy/core/__init__.py", line 5, in <module>
     import multiarray
 ImportError:
 dlopen(/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7
 /site-packages/numpy/core/multiarray.so, 2): no suitable image found.  Did
 find:
 /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7
 /site-packages/numpy/core/multiarray.so: mach-o, but wrong architecture
 }}}

 If I run lipo on this library I get:

 {{{
 Non-fat file:
 /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7
 /site-packages/numpy/core/multiarray.so is architecture: x86_64
 }}}

 which seems to tell me that this library was built as 64 bit regardless of
 the build_arch setting.

 Is this a known problem?

 Thanks

--

Comment(by ram@…):

 NumPy has never played nice with the universal variant and I've never had
 much success in getting it to work. Plus it's never been high on my
 priority list as I personally never use universal.

-- 
Ticket URL: <https://trac.macports.org/ticket/28346#comment:1>
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