[Any reason for dropping python-dev?]
Sorry. just clicked the wrong button.
And the answer is a resounding "yes, it returns the target platform"? It seems
you're saying this, but the wording of your email sounds just enough of a question that
I'm not sure whether you are definitively answering it or not.
The answer is yes indeed, it returns the target platform.
This is a listing of the non-obvious steps that lead to this conclusion.
Xavier
On 2/19/19 8:45 PM, Steve Dower wrote:
[Any reason for dropping python-dev?]
On 19Feb2019 1139, Xavier de Gaye wrote:
Is distutils.util.get_platform() the "current" or the "target" platform ?
I *think* you're answering this below, yes?
* When cross-compiling on posix platforms using autoconf, configure is
run with the '--host=host-type' [1] command line option to specify
the target platform.
* The AC_CANONICAL_HOST macro is used by configure.ac to get the
canonical variables `host' and `host_cpu' [2].
Those variables are used to compute _PYTHON_HOST_PLATFORM.
* The Makefile generated by configure runs setup.py,
generate-posix-vars, etc... on the build platform using
PYTHON_FOR_BUILD, a native python interpreter that is set
to run with the _PYTHON_HOST_PLATFORM environment variable.
* get_platform() in setup.py and in Lib/distutils/util.py returns the
value of _PYTHON_HOST_PLATFORM when cross-compiling.
So the process of cross-compilation on posix platforms has
get_platform() return the target ('host' in autoconf terminology) platform.
[1]
https://www.gnu.org/savannah-checkouts/gnu/autoconf/manual/autoconf-2.69/html_node/Specifying-Target-Triplets.html
[2]
https://www.gnu.org/savannah-checkouts/gnu/autoconf/manual/autoconf-2.69/html_node/Canonicalizing.html
And the answer is a resounding "yes, it returns the target platform"? It seems
you're saying this, but the wording of your email sounds just enough of a question that
I'm not sure whether you are definitively answering it or not.
Cheers,
Steve
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