Reviewed-by: andrew

Reviewed-by: andrew, dholmes

Reviewed-by: alanb, erikj

Reviewed-by: katleman

Reviewed-by: alanb, martin, erikj

Reviewed-by: tbell

Reviewed-by: mr

Summary: Respect user CC and CXX environment variables; use cl iff on windows
Reviewed-by: erikj

Reviewed-by: mduigou

Reviewed-by: sundar, jlaskey, jjg

Reviewed-by: alanb
Contributed-by: erik.joelsson@oracle.com, james.laskey@oracle.com

Reviewed-by: mr, tbell, jjh
Contributed-by: erik.joelsson@oracle.com, james.laskey@oracle.com

Summary: Just the initial work, will need more changes.
Reviewed-by: tbell

Reviewed-by: ohair, ddehaven

Reviewed-by: darcy

Reviewed-by: erikj

Reviewed-by: ohair