[MacPorts] #24942: py26-numpy 1.4.1 undefined symbols in lapack_litemodule

[MacPorts]

#24942: py26-numpy 1.4.1 undefined symbols in lapack_litemodule
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 Reporter:  and.damore@…             |       Owner:  mcalhoun@…           
     Type:  defect                   |      Status:  new                  
 Priority:  Normal                   |   Milestone:                       
Component:  ports                    |     Version:  1.9.99               
 Keywords:                           |        Port:  py26-numpy           
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Comment(by michaelld@…):

 Hmm .. I tried what another person with this issue wrote (default Portfile
 with -gcc44) and it errors out the same for the rest of this ticket.  So,
 I'm attaching a patch file (goes into .../python/py26-numpy/files ) as
 well as a Portfile diff -- it just adds this new file to the list of
 patches applied to the source (no matter what).

 The issue is that LDFLAGS exists in the environment used to setup the
 linalg module, overriding the default values "-undefined dynamic_lookup
 -bundle".  Without those values, the build errors out due to undefined
 symbols from -lpython.  Since loading happens inside Python, these symbols
 already exist in the process, and hence are not necessary for linking the
 module.  The source code patch just adds these flags to the linking of the
 linalg library.

 If you want to try out these patches, download them from this ticket &
 then follow this "script" which will keep the old Portfile around for easy
 restoring.  I'll assume you've downloaded the files to ~/Desktop, so
 change this directory as need be:
 {{{
 sudo port clean py26-numpy
 cd `port dir py26-numpy`
 sudo cp ~/Desktop/patch-numpy_linalg_setup.py.diff files
 sudo cp Portfile Portfile_orig
 sudo patch -p0 < ~/Desktop/py26-numpy_Portfile.diff
 sudo port -d build py26-numpy -gcc44
 }}}
 and see if that works.  You can also try "-gcc44 +universal" if your MP
 setup can do universal.

 To restore everything back to normal, do:
 {{{
 cd `port dir py26-numpy`
 sudo rm files/patch-numpy_linalg_setup.py.diff
 sudo rm Portfile
 sudo mv Portfile_orig Portfile
 }}}

 NOTE: This patch is for this ticket's issue only, by bypassing the use of
 gcc4X.  This practice is not recommended by numpy upstream when using
 +atlas because atlas is compiled with gcc4X -- but it does seem to work.
 If the above works for you, please finish the install then go and try a
 Python program that uses numpy to see if it works for you.

-- 
Ticket URL: <https://trac.macports.org/ticket/24942#comment:12>
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