tree a1d5bc366448837ef43642d74a786df7aa6d2417
parent bbd1b58452aaf51fe08aa7d37c217d41c427325d
author hlopko <hlopko@google.com> 1519045677 -0800
committer John Cater <jcater@google.com> 1519151874 -0500

Fix incorrect include directories when -no-canonical-prefixes is passed to clang

With https://github.com/bazelbuild/bazel/commit/e99279bcce475249e58543a5330fa35e59acd7e8 we started passing -no-canonical-prefixes to clang, but that
causes inconsistent directories used in .d files and system include
directories. The solution is to pass -no-canonical-prefixes also when asking
clang for system include directories.

Interestingly, clang in debian breaks when called like:
`clang -E -xc++ - -v -no-canonical-prefixes`
we have to pass absolute path to the binary like:
`/usr/bin/clang -E -xc++ - -v -no-canonical-prefixes`
then it works.

Fixes #4572.

RELNOTES: None.
PiperOrigin-RevId: 186210671