[New-bugs-announce] [issue46778] Enable parallel compilation on Windows builds

[Jeremy Kloth]

New submission from Jeremy Kloth <jeremy.kloth+python-tracker at gmail.com>:

While the current build does enable building of projects in parallel 
(msbuild -m), the compilation of each project's source files is done sequentially.  For large projects like pythoncore or _freeze_module this can take quite some time.

This simple PR speeds things up significantly, ~2x on machines that I have access.

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components: Build, Windows
messages: 413412
nosy: jkloth, paul.moore, steve.dower, tim.golden, zach.ware
priority: normal
severity: normal
status: open
title: Enable parallel compilation on Windows builds
versions: Python 3.11

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue46778>
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