tree 130fdb27ab064b9c91949e4a6511404eac891e61
parent 1d2faed501e27f4d56e3c950ac42d39db4b97795
author Markus Böck <markus.boeck02@gmail.com> 1614954613 +0100
committer Copybara-Service <copybara-worker@google.com> 1616052529 -0700

[libcxxabi] Add LIBCXXABI_HAS_WIN32_THREAD_API build option

A few files in libc++abi make use of libc++ headers and a few of those use threading primitives provided by libc++. Since libc++ has multiple threading APIs it may be necessary to override auto-detection.

This patch adds the LIBCXXABI_HAS_WIN32_THREAD_API which does roughly the same as LIBCXXABI_HAS_PTHREAD_API and the similarly named LIBCXX_HAS_WIN32_THREAD_API from libc++. Instead of using autodetection it will force the use of win32 threads instead of pthreads in headers included from libc++.

Without this patch, libc++abi may depend on pthreads if present on the users build environment, even if win32 threading was selected for libc++.

Differential revision: https://reviews.llvm.org/D98021

GitOrigin-RevId: 05b3716ddbd536c130caa79cf8486f62548f05fc