Move the GCC installation detection logic down into the Generic_GCC
toolchain. The logic is mostly generic already, and where possible
should be made more generic. Also, it has no impact other than to expose
a set of methods which each toolchain can then query to setup their
desired configuration. These should be available to toolchains beyond
just Linux.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143899 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed