[Pythonmac-SIG] building extension problems on OS X python 2.5.1

[James Boyle]

INTEL Mac  OS X 10.4.9  Macpython 2.5.1

I am having trouble building extensions onto my MacPython 2.5.1.
The error for pynetcdf 0.7 is given below but I have had the same  
error on two other packages.

It appears that the builds attempt to make a universal binary by  
default  and attempt to link to a library that I have built as i386  
only.
The extent of my ignorance is that I would not even know how to build  
a universal library if I wanted to.
These libraries HDF5 and netCDF4 have fairly complex build scripts.

I would like to be able to turn off the mechanism that is forcing a  
universal build. The PPC part is a waste of space for me.

Of course, my interpretation of the error might be completely off base.

Appreciate any insight.

--Jim

[krait:~/Desktop/pynetcdf-0.7] boyle5% python setup.py build
running build
running config_fc
running build_src
building extension "pynetcdf._netcdf" sources
building data_files sources
running build_py
creating build
creating build/lib.macosx-10.3-fat-2.5
creating build/lib.macosx-10.3-fat-2.5/pynetcdf
copying ./__init__.py -> build/lib.macosx-10.3-fat-2.5/pynetcdf
copying ./NetCDF.py -> build/lib.macosx-10.3-fat-2.5/pynetcdf
copying ./netcdf_demo.py -> build/lib.macosx-10.3-fat-2.5/pynetcdf
running build_ext
customize UnixCCompiler
customize UnixCCompiler using build_ext
building 'pynetcdf._netcdf' extension
compiling C sources
C compiler: gcc -arch ppc -arch i386 -isysroot /Developer/SDKs/ 
MacOSX10.4u.sdk -fno-strict-aliasing -Wno-long-double -no-cpp-precomp  
-mno-fused-madd -fPIC -fno-common -dynamic -DNDEBUG -g -O3 -Wall - 
Wstrict-prototypes

creating build/temp.macosx-10.3-fat-2.5
compile options: '-I/Users/boyle5/netcdf-3.6.2/include -I/Library/ 
Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/ 
numpy/core/include -I/Library/Frameworks/Python.framework/Versions/ 
2.5/include/python2.5 -c'
gcc: ./_netcdf.c
./_netcdf.c: In function 'PyNetCDFFile_Close':./_netcdf.c: In  
function 'PyNetCDFFile_Close':

./_netcdf.c:965: warning: passing argument 2 of 'PyDict_Next' from  
incompatible pointer type./_netcdf.c:965: warning: passing argument 2  
of 'PyDict_Next' from incompatible pointer type

./_netcdf.c: In function 'PyNetCDFVariableObject_subscript':
./_netcdf.c:1822: warning: passing argument 3 of 'PySlice_GetIndices'  
from incompatible pointer type
./_netcdf.c:1822: warning: passing argument 4 of 'PySlice_GetIndices'  
from incompatible pointer type
./_netcdf.c:1822: warning: passing argument 5 of 'PySlice_GetIndices'  
from incompatible pointer type
./_netcdf.c:1842: warning: passing argument 3 of 'PySlice_GetIndices'  
from incompatible pointer type
./_netcdf.c:1842: warning: passing argument 4 of 'PySlice_GetIndices'  
from incompatible pointer type
./_netcdf.c:1842: warning: passing argument 5 of 'PySlice_GetIndices'  
from incompatible pointer type
./_netcdf.c: In function 'PyNetCDFVariableObject_subscript':
./_netcdf.c:1822: warning: passing argument 3 of 'PySlice_GetIndices'  
from incompatible pointer type
./_netcdf.c:1822: warning: passing argument 4 of 'PySlice_GetIndices'  
from incompatible pointer type
./_netcdf.c:1822: warning: passing argument 5 of 'PySlice_GetIndices'  
from incompatible pointer type
./_netcdf.c:1842: warning: passing argument 3 of 'PySlice_GetIndices'  
from incompatible pointer type
./_netcdf.c:1842: warning: passing argument 4 of 'PySlice_GetIndices'  
from incompatible pointer type
./_netcdf.c:1842: warning: passing argument 5 of 'PySlice_GetIndices'  
from incompatible pointer type
./_netcdf.c: In function 'PyNetCDFVariableObject_ass_subscript':
./_netcdf.c:1944: warning: passing argument 3 of 'PySlice_GetIndices'  
from incompatible pointer type
./_netcdf.c:1944: warning: passing argument 4 of 'PySlice_GetIndices'  
from incompatible pointer type
./_netcdf.c:1944: warning: passing argument 5 of 'PySlice_GetIndices'  
from incompatible pointer type
./_netcdf.c:1964: warning: passing argument 3 of 'PySlice_GetIndices'  
from incompatible pointer type
./_netcdf.c:1964: warning: passing argument 4 of 'PySlice_GetIndices'  
from incompatible pointer type
./_netcdf.c:1964: warning: passing argument 5 of 'PySlice_GetIndices'  
from incompatible pointer type
./_netcdf.c: In function 'PyNetCDFVariableObject_ass_subscript':
./_netcdf.c:1944: warning: passing argument 3 of 'PySlice_GetIndices'  
from incompatible pointer type
./_netcdf.c:1944: warning: passing argument 4 of 'PySlice_GetIndices'  
from incompatible pointer type
./_netcdf.c:1944: warning: passing argument 5 of 'PySlice_GetIndices'  
from incompatible pointer type
./_netcdf.c:1964: warning: passing argument 3 of 'PySlice_GetIndices'  
from incompatible pointer type
./_netcdf.c:1964: warning: passing argument 4 of 'PySlice_GetIndices'  
from incompatible pointer type
./_netcdf.c:1964: warning: passing argument 5 of 'PySlice_GetIndices'  
from incompatible pointer type
./_netcdf.c: At top level:
./_netcdf.c:2009: warning: initialization from incompatible pointer type
./_netcdf.c:2011: warning: 'intargfunc' is deprecated
./_netcdf.c:2011: warning: initialization from incompatible pointer type
./_netcdf.c:2012: warning: 'intargfunc' is deprecated
./_netcdf.c:2012: warning: initialization from incompatible pointer type
./_netcdf.c:2013: warning: 'intintargfunc' is deprecated
./_netcdf.c:2013: warning: initialization from incompatible pointer type
./_netcdf.c:2014: warning: initialization from incompatible pointer type
./_netcdf.c:2015: warning: initialization from incompatible pointer type
./_netcdf.c:2019: warning: initialization from incompatible pointer type
./_netcdf.c: At top level:
./_netcdf.c:2009: warning: initialization from incompatible pointer type
./_netcdf.c:2011: warning: 'intargfunc' is deprecated
./_netcdf.c:2011: warning: initialization from incompatible pointer type
./_netcdf.c:2012: warning: 'intargfunc' is deprecated
./_netcdf.c:2012: warning: initialization from incompatible pointer type
./_netcdf.c:2013: warning: 'intintargfunc' is deprecated
./_netcdf.c:2013: warning: initialization from incompatible pointer type
./_netcdf.c:2014: warning: initialization from incompatible pointer type
./_netcdf.c:2015: warning: initialization from incompatible pointer type
./_netcdf.c:2019: warning: initialization from incompatible pointer type
./_netcdf.c: In function 'PyNetCDFVariable_WriteArray':
./_netcdf.c:1626: warning: 'lastloop' may be used uninitialized in  
this function
./_netcdf.c: In function 'PyNetCDFVariable_WriteArray':
./_netcdf.c:1626: warning: 'lastloop' may be used uninitialized in  
this function
gcc -arch i386 -arch ppc -isysroot /Developer/SDKs/MacOSX10.4u.sdk - 
bundle -undefined dynamic_lookup build/temp.macosx-10.3-fat-2.5/ 
_netcdf.o -L/Users/boyle5/netcdf-3.6.2/lib -lnetcdf -o build/ 
lib.macosx-10.3-fat-2.5/pynetcdf/_netcdf.so
/usr/bin/ld: for architecture ppc
/usr/bin/ld: warning /Users/boyle5/netcdf-3.6.2/lib/libnetcdf.a  
archive's cputype (7, architecture i386) does not match cputype (18)  
for specified -arch flag: ppc (can't load from it)