aligned_alloc: remove old __MSVCRT_VERSION__ checks for mingw-w64
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In upstream mingw-w64 the default value of __MSVCRT_VERSION__ was recently changed from 0x700 to 0x600, causing boost/align to fall back to a mingw-w64 provided _aligned_malloc for pre-winxp targets instead of using the default one. See this for details: mingw-w64/mingw-w64@90d3f33 _aligned_malloc is available in msvcrt.dll since WinXP, according to https://github.com/mingw-w64/mingw-w64/blob/03d8a40f57649fbb773f1cdbe3a760f5e0943e76/mingw-w64-crt/lib-common/msvcrt.def.in#L1175-L1206, so assuming boost/align does not support things older than WinXP, just remove the checks and use one implementation for all of Windows instead. _aligned_malloc is provided by mingw-w64 itself since 2009, so this change should not affect compatibility with any of the currently used mingw-w64 versions.
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In upstream mingw-w64 the default value of
__MSVCRT_VERSION__was recently changed from 0x700 to 0x600, causing boost/align to fall back to a mingw-w64 provided _aligned_malloc for pre-winxp targets instead of using the default one. See this for details:mingw-w64/mingw-w64@90d3f33
_aligned_malloc is available in msvcrt.dll since WinXP, according to https://github.com/mingw-w64/mingw-w64/blob/03d8a40f57649fbb773f1cdbe3a760f5e0943e76/mingw-w64-crt/lib-common/msvcrt.def.in#L1175-L1206, so assuming boost/align does not support things older than WinXP, just remove the checks and use one implementation for all of Windows instead.
_aligned_malloc is provided by mingw-w64 itself since 2009, so this change should
not affect compatibility with any of the currently used mingw-w64 versions.