Reject -L "", -L native=, and other empty search paths.#23358

Merged

bors merged 2 commits intorust-lang:masterfrom

rprichard:reject-empty-L

Mar 15, 2015

Commits on Mar 13, 2015

Avoid passing -L "" during cross-compilation.
rprichard
committed

Commits on Mar 14, 2015

Reject `-L ""`, `-L native=`, and other empty search paths.
rprichard
committed