Extend -Bprefix functionality and make it closer to gcc. If the "prefix"
is not a directory, Driver::GetProgramPath() routine does not try to append
the program name as a "path component" to it. It just joins the "prefix" with
the program name and checks the resulting path existence.

The patch reviewed by Rafael Espindola.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167114 91177308-0d34-0410-b5e6-96231b3b80d8
6 files changed