[PATCH] lld: handling of -flavor / -core command line switches

[kledzik at apple.com]

1. Don't most build system invoke the compiler to invoke the linker? How are you overriding the linker?  Can you redirect to a script that invokes lld with -flavor and $@
2. Yes, shifting argv is not right.  We need the -flavor and its arg removed, so argv[0] is still the command name.

http://reviews.llvm.org/D5384