Added libgtest.a for make check
Merge pull request #35 from redboltz/add_libgtest

Added libgtest.a for make check
Fixed an unused function warning.
This fix is a part of issue #33.
https://github.com/snej/msgpack-c/commit/35ba41c24503ec934b1cb181a979459644242a01
Merge pull request #41 from redboltz/old_compiler_bus_error_workaround

Fixed an unused function warning.