lysnikolaou commented on code in PR #43606:
URL: https://github.com/apache/arrow/pull/43606#discussion_r1707262903
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python/CMakeLists.txt:
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@@ -855,6 +856,10 @@ set(CYTHON_FLAGS "${CYTHON_FLAGS}" "--warning-errors")
# undocumented Cython feature.
set(CYTHON_FLAGS "${CYTHON_FLAGS}" "--no-c-in-traceback")
+if(CYTHON_VERSION VERSION_GREATER_EQUAL "3.1.0a0")
+ set(CYTHON_FLAGS "${CYTHON_FLAGS}" "-Xfreethreading_compatible=True")
Review Comment:
It's documented here:
https://cython.readthedocs.io/en/latest/src/userguide/source_files_and_compilation.html#compiler-directives.
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