Martin Storsjö dc3156d8e6 [OpenMP] Don't hardcode _WIN32_WINNT for MinGW targets (#115708) ...

Instead respect what the toolchain default is (or what the user sets via
CMAKE_CXX_FLAGS).

This fixes builds with libcxx, with mingw toolchains targeting
msvcrt.dll, after 5d8be4c036aa5ce4a94f1f37a9155d5c877e23db; after that
commit, the libcxx public headers reference symbols such as iswspace_l,
which are unavailable when targeting msvcrt.dll on older versions of
Windows (it's only available in msvcrt.dll since Windows Vista).

2024-11-16 11:23:15 +02:00

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