Survey: Is somebody using the -enable-*/-disable-* command line option pairs?

[Johan Engelen via digitalmars-d-ldc]

Thanks for working on this Kai.
Our build relies on -disable-invariants being a valid cmdline 
switch, and so now LLVM 3.7 builds fail for me. (I'd like to be 
able to build with LLVM3.7 to compare exception handling between 
3.6/3.7 and work on issues that pop up in that area)