Hardcoding ARCHFLAGS breaks the build against fink's python

[bcully]

Fink's python is either i386 or amd64, but not universal. Setting ARCHFLAGS to the
empty string produces a successful build against both OS X python and fink python.
The modules will no longer be universal -- if that is an issue, we can change the
test to extract ARCHFLAGS from distutils.sysconfig and remove ppc if necessary.

[jelmer]

I've asked for feedback about this on the dulwich list.

[daenney]

I just tried that patch, it works on 10.6 with XCode 4.0.1 so I'm pretty sure we can say that the change should be fine.

switch:dulwich daenney$ sudo /usr/bin/python2.6 setup.py build
    running build
    running build_py
    creating build
    creating build/lib.macosx-10.6-universal-2.6
    creating build/lib.macosx-10.6-universal-2.6/dulwich
    copying dulwich/__init__.py -> build/lib.macosx-10.6-universal-2.6/dulwich
    copying dulwich/_compat.py -> build/lib.macosx-10.6-universal-2.6/dulwich
    copying dulwich/client.py -> build/lib.macosx-10.6-universal-2.6/dulwich
    copying dulwich/diff_tree.py -> build/lib.macosx-10.6-universal-2.6/dulwich
    copying dulwich/errors.py -> build/lib.macosx-10.6-universal-2.6/dulwich
    copying dulwich/fastexport.py -> build/lib.macosx-10.6-universal-2.6/dulwich
    copying dulwich/file.py -> build/lib.macosx-10.6-universal-2.6/dulwich
    copying dulwich/index.py -> build/lib.macosx-10.6-universal-2.6/dulwich
    copying dulwich/log_utils.py -> build/lib.macosx-10.6-universal-2.6/dulwich
    copying dulwich/lru_cache.py -> build/lib.macosx-10.6-universal-2.6/dulwich
    copying dulwich/object_store.py -> build/lib.macosx-10.6-universal-2.6/dulwich
    copying dulwich/objects.py -> build/lib.macosx-10.6-universal-2.6/dulwich
    copying dulwich/pack.py -> build/lib.macosx-10.6-universal-2.6/dulwich
    copying dulwich/patch.py -> build/lib.macosx-10.6-universal-2.6/dulwich
    copying dulwich/protocol.py -> build/lib.macosx-10.6-universal-2.6/dulwich
    copying dulwich/repo.py -> build/lib.macosx-10.6-universal-2.6/dulwich
    copying dulwich/server.py -> build/lib.macosx-10.6-universal-2.6/dulwich
    copying dulwich/web.py -> build/lib.macosx-10.6-universal-2.6/dulwich
    creating build/lib.macosx-10.6-universal-2.6/dulwich/tests
    copying dulwich/tests/__init__.py -> build/lib.macosx-10.6-universal-2.6/dulwich/tests
    copying dulwich/tests/test_blackbox.py -> build/lib.macosx-10.6-universal-2.6/dulwich/tests
    copying dulwich/tests/test_client.py -> build/lib.macosx-10.6-universal-2.6/dulwich/tests
    copying dulwich/tests/test_diff_tree.py -> build/lib.macosx-10.6-universal-2.6/dulwich/tests
    copying dulwich/tests/test_fastexport.py -> build/lib.macosx-10.6-universal-2.6/dulwich/tests
    copying dulwich/tests/test_file.py -> build/lib.macosx-10.6-universal-2.6/dulwich/tests
    copying dulwich/tests/test_index.py -> build/lib.macosx-10.6-universal-2.6/dulwich/tests
    copying dulwich/tests/test_lru_cache.py -> build/lib.macosx-10.6-universal-2.6/dulwich/tests
    copying dulwich/tests/test_object_store.py -> build/lib.macosx-10.6-universal-2.6/dulwich/tests
    copying dulwich/tests/test_objects.py -> build/lib.macosx-10.6-universal-2.6/dulwich/tests
    copying dulwich/tests/test_pack.py -> build/lib.macosx-10.6-universal-2.6/dulwich/tests
    copying dulwich/tests/test_patch.py -> build/lib.macosx-10.6-universal-2.6/dulwich/tests
    copying dulwich/tests/test_protocol.py -> build/lib.macosx-10.6-universal-2.6/dulwich/tests
    copying dulwich/tests/test_repository.py -> build/lib.macosx-10.6-universal-2.6/dulwich/tests
    copying dulwich/tests/test_server.py -> build/lib.macosx-10.6-universal-2.6/dulwich/tests
    copying dulwich/tests/test_web.py -> build/lib.macosx-10.6-universal-2.6/dulwich/tests
    copying dulwich/tests/utils.py -> build/lib.macosx-10.6-universal-2.6/dulwich/tests
    running build_ext
    building 'dulwich._objects' extension
    creating build/temp.macosx-10.6-universal-2.6
    creating build/temp.macosx-10.6-universal-2.6/dulwich
    gcc-4.2 -fno-strict-aliasing -fno-common -dynamic -DNDEBUG -g -fwrapv -Os -Wall -Wstrict-prototypes -DENABLE_DTRACE -pipe -I/System/Library/Frameworks/Python.framework/Versions/2.6/include/python2.6 -c d
    gcc-4.2 -Wl,-F. -bundle -undefined dynamic_lookup build/temp.macosx-10.6-universal-2.6/dulwich/_objects.o -o build/lib.macosx-10.6-universal-2.6/dulwich/_objects.so
    building 'dulwich._pack' extension
    gcc-4.2 -fno-strict-aliasing -fno-common -dynamic -DNDEBUG -g -fwrapv -Os -Wall -Wstrict-prototypes -DENABLE_DTRACE -pipe -I/System/Library/Frameworks/Python.framework/Versions/2.6/include/python2.6 -c d
    gcc-4.2 -Wl,-F. -bundle -undefined dynamic_lookup build/temp.macosx-10.6-universal-2.6/dulwich/_pack.o -o build/lib.macosx-10.6-universal-2.6/dulwich/_pack.so
    building 'dulwich._diff_tree' extension
    gcc-4.2 -fno-strict-aliasing -fno-common -dynamic -DNDEBUG -g -fwrapv -Os -Wall -Wstrict-prototypes -DENABLE_DTRACE -pipe -I/System/Library/Frameworks/Python.framework/Versions/2.6/include/python2.6 -c d
    gcc-4.2 -Wl,-F. -bundle -undefined dynamic_lookup build/temp.macosx-10.6-universal-2.6/dulwich/_diff_tree.o -o build/lib.macosx-10.6-universal-2.6/dulwich/_diff_tree.so
    running build_scripts
    creating build/scripts-2.6
    copying and adjusting bin/dulwich -> build/scripts-2.6
    copying and adjusting bin/dul-daemon -> build/scripts-2.6
    copying and adjusting bin/dul-web -> build/scripts-2.6
    changing mode of build/scripts-2.6/dulwich from 644 to 755
    changing mode of build/scripts-2.6/dul-daemon from 644 to 755
    changing mode of build/scripts-2.6/dul-web from 644 to 755