Hi,
I recently upgraded to Mac OS X 10.6 Snow Leopard, which means I am
now using gcc version 4.2.1 (Apple Inc. build 5646)
When I first tried to use Cython after the upgrade I was getting
errors like
cc1: error: unrecognized command line option "-Wno-long-double"
presumably because the deprecated -Wno-long-double option was removed
from gcc.
When trying to build Cython itself on the default Python 2.6
installation, I was also getting a lot of warnings like
/usr/include/AvailabilityMacros.h:108:14: warning: #warning
Building for Intel with Mac OS X Deployment Target < 10.4 is invalid.
My workaround, which seems to work OK so far, is as follows:
First run
$ easy_install -eb temporary_folder Cython
to download but not install Cython
On line 32 of temporary_folder/cython/Cython/Mac/DarwinSystem.py change
os.environ["MACOSX_DEPLOYMENT_TARGET"] = "10.3"
to
os.environ["MACOSX_DEPLOYMENT_TARGET"] = "10.4"
And on line 36 of Cython/Mac/DarwinSystem.py remove the "-Wno-long-
double" option.
Then run
$ sudo easy_install temporary_folder/cython/
to build and install the modified Cython.
Hope this saves someone a few minutes.
Richard
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