simonmar/happy — pull request #15 by kazu-yamamoto (2013-11-22 04:38:33+00:00)
Title: Converting clang's line makers to GHC's line pragma.

Some of clang's line makers have four items:

----
# 1 "" 1
----

This cannot be parsed by Setup and is left in a template as is,
resulting in compile errors with GHC/clang-wrapper later.