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List: python-distutils-sig
Subject: Re: [Distutils] Passing compiler options via the pydistutils.cfg
From: "Phillip J. Eby" <pje () telecommunity ! com>
Date: 2008-01-10 18:18:53
Message-ID: 20080110181855.DC5A53A406C () sparrow ! telecommunity ! com
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At 10:02 AM 1/10/2008 -0800, kieran hervold wrote:
>I've run into a problem using mod_python under OS X Leopard: because
>the apache2 process runs in 64-bit mode, the python interpreter is
>forced into 64-bit mode, which breaks compatibility with any Python
>library with underlying C code.
>
>I suspect that adding a compiler flag specifying "-arch x86_64" to any
>gcc invocation would fix the problem, but I'd rather not do this
>package by package: I'd like to set one global parameter and be done
>with it.
>
>Apparently, I can add an entry to the global pydistutils.cfg file.
>However, I can't seem to find the appropriate parameter. The
>pydistutils.cfg file follows the nomenclature of command-line setup.py
>invocation, but I haven't found a C compiler pass-through parameter
>for setup.py.
>
>Does such a parameter exist?
Apparently not:
$ python setup.py build_ext --help
...
Options for 'build_ext' command:
--build-lib (-b) directory for compiled extension modules
--build-temp (-t) directory for temporary files (build by-products)
--inplace (-i) ignore build-lib and put compiled extensions into the
source directory alongside your pure Python modules
--include-dirs (-I) list of directories to search for header files
(separated by ';')
--define (-D) C preprocessor macros to define
--undef (-U) C preprocessor macros to undefine
--libraries (-l) external C libraries to link with
--library-dirs (-L) directories to search for external C libraries
(separated by ';')
--rpath (-R) directories to search for shared C libraries at runtime
--link-objects (-O) extra explicit link objects to include in the link
--debug (-g) compile/link with debugging information
--force (-f) forcibly build everything (ignore file timestamps)
--compiler (-c) specify the compiler type
--swig-cpp make SWIG create C++ files (default is C)
--swig-opts list of SWIG command line options
--swig path to the SWIG executable
--help-compiler list available compilers
> If I want to add a flag ("-arch x86_64",
>in this case) to the C compiler invocation, how do I pass that to
>setup.py?
There's probably an environment variable you can use, like CFLAGS or
some such; check the distutils.sysconfig module to see if you can
find something useful.
Otherwise, you may have to have apache run your setup.py files to do
the building.
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