BUG: Cygwin Workaround for #14787 on affected platforms #17568
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commands replaces obsolete (no longer used anywhere AFICT check_compiler_gcc4 with some more general utilities for checking GCC version
… flags when building the numpy.core._multiarray_umath module This adds the extra compile args to the extension needed to work around the bug but only in the known case where the bug is relevant.
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Backport of #17548.
This fixed the issue for me on Cygwin with GCC 7.4.0 by adding the compiler flags necessary to work around the issue as described in #14787.
Might also help with #16246.