Changes to ghc(4)

Changes to ghc:
commit 1ad599ea241626f47006fa386e4aaf38dc91fdbb
Author: Gabor Pali <pali.gabor@gmail.com>
Date:   Sat Jan 18 03:02:21 2014 +0100

    Fix #8451

    On FreeBSD, /usr/lib has to be added to the library path on linking when
    libthr is needed but -nostdlib is used (which is the case when the -prof
    and -threaded flags are combined).

commit bcc5c953f80c53732172345639f30974b9862043
Author: Gabor Pali <pali.gabor@gmail.com>
Date:   Fri Jan 17 20:24:00 2014 +0100

    Re-enable DYNAMIC_GHC_PROGRAMS for FreeBSD.

    All actively supported releases (8.4-RELEASE, 9.2-RELEASE and the
    upcoming 10.0-RELEASE) now support resolution of $ORIGIN properly.

commit c3b8b3ab27f092c83e08915e3de0bde29321cd31
Author: Gabor Pali <pali.gabor@gmail.com>
Date:   Fri Jan 17 20:15:35 2014 +0100

    Allow "amd64" to be recognized as an x86_64 platform.

commit 0d90cbc988af31ff8ea35120203bd9d252d8055e
Author: Gabor Pali <pali.gabor@gmail.com>
Date:   Fri Jan 17 20:13:02 2014 +0100

    Enable LLVM-based code generation for FreeBSD/amd64.