Changes for MinGW non WINAPI path handling #24

Job	Run time
build_pkgbuild (macos-26, clang, --disable-dependency-tracking --prefix=/usr/local --with-pyprefix)	1m 17s
build (macos-15, clang)	1m 22s
build (macos-14, clang)	1m 10s
build (macos-26, clang)	1m 14s
build (macos-26-intel, clang)	3m 2s
build (macos-26, gcc)	1m 19s
	9m 24s

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