Saleem Abdulrasool authored Jun 09, 2019 and Brad King committed Jun 17, 2019

When building Swift executables and libraries which import a module, an
implicit link will be added by the driver.  Because this links by name
rather than path, the library search path needs to be provided to
indicate where to find the library.  For all local dependencies, add the
library paths for the targets when linking.  This ensures that you can
link against local libraries without explicitly setting a library path.

Fixes: #19304