LRTE v2 with GCC 4.9.2 and Clang 4.0 from google/stable branch

Cross compilers:

• Clang 4.0 with
  • Polly
  • lld
  • lldb
  • openmp
• GCC 4.9.2 from google/stable, not 4.9.4 (current end of that very branch)
  • gfortran
  • lto
  • both as shared libraries

LRTE runtime:

• unchanged. no gfortran, but libgomp is present.

First Attempt at GCC 4.9.2 + CLANG 4.0-dev

First attempt at gcc 4.9.2 with clang 4.0-dev

• does not contain polly (I think)