pythongh-95853: Improve WASM build script (pythonGH-96389)

- pre-build Emscripten ports and system libraries - check for broken EMSDK versions - use EMSDK's node for wasm32-emscripten - warn when PKG_CONFIG_PATH is set - add support level information
swtaarrs · Aug 30, 2022 · 2eb9008 · 2eb9008
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diff --git a/Misc/NEWS.d/next/Tools-Demos/2022-08-29-17-25-13.gh-issue-95853.Ce17cT.rst b/Misc/NEWS.d/next/Tools-Demos/2022-08-29-17-25-13.gh-issue-95853.Ce17cT.rst
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+The ``wasm_build.py`` script now pre-builds Emscripten ports, checks for
+broken EMSDK versions, and warns about pkg-config env vars.