[Bug c/61891] New: line-map.c: file "" left but not entered during `cabal install -p haskell-src-exts`

[andrew.pennebaker at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61891

            Bug ID: 61891
           Summary: line-map.c: file "<command-line>" left but not entered
                    during `cabal install -p haskell-src-exts`
           Product: gcc
           Version: 4.8.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: andrew.pennebaker at gmail dot com

When I install the haskell-src-exts Cabal package, including profiling
information, with:

$ cabal install -p haskell-src-exts

I see an error reported by GCC:

line-map.c: file "<command-line>" left but not entered

I spend more of my time in Haskell than C, so I'm not quite sure what's going
wrong. Maybe look in the C sources for haskell-src-exts or its dependencies to
find the line-map.c file that triggers the error?

System:

* GHC 7.6.3
* GCC 4.8.2
* Ubuntu 14.04