[New-bugs-announce] [issue16779] Fix compiler warning when building extension modules on 64-bit Windows

[Jeremy Kloth]

New submission from Jeremy Kloth:

The 64-bit linker doesn't mangle the dllexport'ed module init function (from PyMODINIT_FUNC) so it causes an exported name conflict.  We cannot just remove that name from export_symbols as the module may not have used PyMODINIT_FUNC on its init function.

The attached patch "fixes" the problem by suppressing the warning.

I personally would prefer the "pure" approach by assuming that the module initialization function would be required to be declared by PyMODINIT_FUNC and therefore the symbol would not need to be exported on the command line.

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assignee: eric.araujo
components: Build, Distutils
files: msvc9compiler.diff
keywords: patch
messages: 178160
nosy: eric.araujo, jkloth, tarek
priority: normal
severity: normal
status: open
title: Fix compiler warning when building extension modules on 64-bit Windows
versions: Python 3.3, Python 3.4, Python 3.5
Added file: http://bugs.python.org/file28432/msvc9compiler.diff

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<http://bugs.python.org/issue16779>
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