tree 23a7bff521f3eb08b4d9946a50117649300f7081
parent d47eed50852f55b019c09ea7ce3d4dda2463980c
author Louis Dionne <ldionne.2@gmail.com> 1634068748 -0400
committer Copybara-Service <copybara-worker@google.com> 1634825456 -0700

[runtimes] Properly handle the sysroot/triple/gcc-toolchain

In 395271a, I simplified how we handled the target triple for the
runtimes. However, in doing so, we stopped considering the default
in CMAKE_CXX_COMPILER_TARGET, so we'd use the LLVM_DEFAULT_TARGET_TRIPLE
(which is the host triple) even if CMAKE_CXX_COMPILER_TARGET was specified.
This commit fixes that problem and also refactors the code so that it's
easy to see what the default value is.

The fact that nobody seems to have been broken by this makes me think
that perhaps nobody is using CMAKE_CXX_COMPILER_TARGET to specify the
triple -- but it should still work.

Differential Revision: https://reviews.llvm.org/D111672

GitOrigin-RevId: 72117f2ffeb6a096a808c34ec7ebee122c2d2e21