[libc++] Remove warning for `LIBCXX_SYSROOT`, `LIBCXX_TARGET_TRIPLE`, and `LIBCXX_GCC...
authorJoe Loser <joeloser@fastmail.com>
Tue, 10 Jan 2023 03:13:44 +0000 (20:13 -0700)
committerJoe Loser <joeloser@fastmail.com>
Tue, 10 Jan 2023 20:07:04 +0000 (13:07 -0700)
commit07a341c2e4d9356036d6187788443d5c756c02bc
tree8a26764874ed706ea393e0417e39c28e8a682630
parent38791259c1165cedfa313e06dc20e443f1e20634
[libc++] Remove warning for `LIBCXX_SYSROOT`, `LIBCXX_TARGET_TRIPLE`, and `LIBCXX_GCC_TOOLCHAIN`

Support for these CMake variables has been a warning for a while now.  The
comment indicates to just remove the warning message entirely as anyone impacted
had to have update to new mechanisms in order to use `libc++`.  So, remove the
warning message.

Differential Revision: https://reviews.llvm.org/D141345
libcxx/CMakeLists.txt