tree b54eb543d61e87726eea38b614a87d539a545f4c
parent 14ed70cd7d3ac5df1cc037b721d058bce275de87
author Saleem Abdulrasool <compnerd@compnerd.org> 1623619723 -0700
committer Copybara-Service <copybara-worker@google.com> 1623872068 -0700

unwind: allow building with GCC

This was regressed in adf1561d6ce8.  Since gcc does not support
`__has_feature`, this adjusts the build to use the
`__SANITIZE_ADDRESS__` macro which GCC defines to identify if ASAN is
enabled (similar to `__has_feature`).  This allows building libunwind
with gcc again.

Patch by Daniel Levin!

Reviewed By: compnerd

Differential Revision: https://reviews.llvm.org/D104176

GitOrigin-RevId: e03be2efe564026ad3b04d459794c89c674e1ed9