[all-commits] [llvm/llvm-project] d882ca: [Driver] Check whether Gentoo-specific configurati...

[dmantipov via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: d882ca7f1f1dee7d812d6b1ae060b5f671ab9ebc
      https://github.com/llvm/llvm-project/commit/d882ca7f1f1dee7d812d6b1ae060b5f671ab9ebc
  Author: Dmitry Antipov <dmantipov at yandex.ru>
  Date:   2020-09-23 (Wed, 23 Sep 2020)

  Changed paths:
    M clang/lib/Driver/ToolChains/Gnu.cpp
    M clang/lib/Driver/ToolChains/Gnu.h

  Log Message:
  -----------
  [Driver] Check whether Gentoo-specific configuration directory exists

Check whether /etc/env.d/gcc exists before trying to read from any
file from there. This saves a few OS calls on a non-Gentoo system.

Differential Revision: https://reviews.llvm.org/D87143