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Support custom PKG_CONFIG_PATH in the wasm build #96253
Description
Feature or enhancement
tools/wasm/wasm_build.py does not have an easy way to build submodules.
Pitch
PKG_CONFIG_PATH could be used to support say things like https://github.com/hoodmane/libffi-emscripten.
I propose adding this to the wasm_build.py to support custom package configs.
Previous discussion
https://discuss.python.org/t/get-ctypes-working-in-emscripten-build/18466/2
Activity
tiran commentedon Aug 25, 2022
Actually there is no need to change any code in CPython. It turns out that Emscripten has an undocumented env var
EM_PKG_CONFIG_PATH. I have opened emscripten-core/emscripten#17736 to add the env var to Emscripten docs.tiran commentedon Aug 26, 2022
@rchiodo Can you confirm that
EM_PKG_CONFIG_PATHsolves your problem?rchiodo commentedon Aug 26, 2022
Yes that did work for me. Thanks.