@hackage executable-path0.0.3.1

The documentation of "System.Environment.getProgName" says that "However, this is hard-to-impossible to implement on some non-Unix OSes, so instead, for maximum portability, we just return the leafname of the program as invoked." This library tries to provide the missing path. Note: Since base 4.6.0.0, there is also a function "System.Environment.getExecutablePath".