Auto merge of #243 - emilio:include-path, r=fitzgen
Auto merge of #243 - emilio:include-path, r=fitzgen

Fix path detection after #228

r? @fitzgen

Too bad we can't test it on CI because CI has the path correctly setup :(

Fixes #242

jdub/rust-bindgen,emilio/rust-bindgen,emilio/rust-bindgen,emilio/rust-bindgen,jdub/rust-bindgen,rust-lang/rust-bindgen,rust-lang/rust-bindgen,emilio/rust-bindgen,emilio/rust-bindgen,rust-lang/rust-bindgen,rust-lang/rust-bindgen,jdub/rust-bindgen,jdub/rust-bindgen