[boost] Add Supports fields and more accurately handle arm64-windows/x64-uwp #12762
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This PR adds
Supports
fields to the boost suite such thatboost:arm64-windows
,boost:x64-uwp
andboost:arm64-uwp
are all now installable.This PR may introduce undesirable behavior for certain unofficial platform combinations (native compilation on
arm64-linux
for example), however we have no way to effectively test these systems as they are unofficial.What does your PR fix?
Fixes [boost-coroutine:arm-windows] build failure #12304, boost --triplet x64-uwp build failure #10609, Building boost for ARM64 UPW fails #6095.
Which triplets are supported/not supported? Have you updated the CI baseline?
All official triplets have been handled, Yes
Does your PR follow the maintainer guide?
Yes