[3.13] gh-125269: Use AC_LINK_IF_ELSE to detect if -latomic is needed (GH-125416)
#125493
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…ded (pythonGH-125416) We previously used `AC_RUN_IF_ELSE` with a short test program to detect if `-latomic` is needed, but that requires choosing a specific default value when cross-compiling because the test program is not run. Some cross compilation targets like `wasm32-emscripten` do not support `-latomic`, while other cross compilation targets, like `arm-linux-gnueabi` require it. (cherry picked from commit 8d42e2d) Co-authored-by: Sam Gross <[email protected]>
miss-islington
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erlend-aasland and
corona10
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erlend-aasland
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Oct 15, 2024
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We previously used
AC_RUN_IF_ELSEwith a short test program to detectif
-latomicis needed, but that requires choosing a specific defaultvalue when cross-compiling because the test program is not run.
Some cross compilation targets like
wasm32-emscriptendo not support-latomic, while other cross compilation targets, likearm-linux-gnueabirequire it.(cherry picked from commit 8d42e2d)
Co-authored-by: Sam Gross [email protected]