matt johnson aa830e7347 Boost: add build script and build products for Mac ...

The build script included here is largely a port of the existing
build script for Windows, so its usage is similar. The one detail
that is unique to the Mac build script is that since it does not
currently appear to be possible to have the Boost build itself
generate universal binaries, we therefore have to run a build
for each of x86_64 and arm64 architectures and then combine
them into a set of universal binaries ourselves in a post-process.

The build products included here represent Boost version
1.70.0, the same version currently used on Windows.

Note that this does *not* include the update to the module rules
that would put this new set of libraries into use with engine builds.
That will be done in a subsequent change, since it will have to be
combined with a rebuild of USD, which is the main consumer of
the Boost libraries.

#rb michael.balzer, will.damon
#preflight 621eda79b20446f11c7ed147

[CL 19225365 by matt johnson in ue5-main branch]

2022-03-02 14:03:26 -05:00

..

Mac

Boost: add build script and build products for Mac

2022-03-02 14:03:26 -05:00

Windows

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