c linkage for wlock_xxx() methods
c linkage for wlock_xxx() methods

These must be declared with extern "C" to link correctly with C++ applications.

Signed-off-by: Mike Schonberg <a0b795d7498c6bea81956c992e86c1008615b63d@nyx.com>

philippreston/OpenMAMA,cloudsmith-io/openmama,dmaguire/OpenMAMA,dpauls/OpenMAMA,jacobraj/MAMA,kuangtu/OpenMAMA,fquinner/OpenMAMA,dpauls/OpenMAMA,vulcanft/openmama,fquinner/OpenMAMA,dpauls/OpenMAMA,MattMulhern/OpenMAMA,kuangtu/OpenMAMA,MattMulhern/OpenMamaCassandra,cloudsmith-io/openmama,cloudsmith-io/openmama,philippreston/OpenMAMA,jacobraj/MAMA,philippreston/OpenMAMA,dmagOM/OpenMAMA-dynamic,dpauls/OpenMAMA,fquinner/OpenMAMA,vulcanft/openmama,jacobraj/MAMA,kuangtu/OpenMAMA,fquinner/OpenMAMA,cloudsmith-io/openmama,dmaguire/OpenMAMA,dpauls/OpenMAMA,fquinner/OpenMAMA,MattMulhern/OpenMamaCassandra,dmagOM/OpenMAMA-dynamic,philippreston/OpenMAMA,MattMulhern/OpenMamaCassandra,cloudsmith-io/openmama,fquinner/OpenMAMA,philippreston/OpenMAMA,kuangtu/OpenMAMA,jacobraj/MAMA,MattMulhern/OpenMAMA,philippreston/OpenMAMA,MattMulhern/OpenMAMA,kuangtu/OpenMAMA,MattMulhern/OpenMAMA,dmaguire/OpenMAMA,jacobraj/MAMA,dpauls/OpenMAMA,MattMulhern/OpenMamaCassandra,dmagOM/OpenMAMA-dynamic,dmagOM/OpenMAMA-dynamic,kuangtu/OpenMAMA,MattMulhern/OpenMamaCassandra,cloudsmith-io/openmama,vulcanft/openmama,dmagOM/OpenMAMA-dynamic,MattMulhern/OpenMAMA,vulcanft/openmama,dmaguire/OpenMAMA,dmaguire/OpenMAMA,jacobraj/MAMA,kuangtu/OpenMAMA,fquinner/OpenMAMA,MattMulhern/OpenMAMA,MattMulhern/OpenMamaCassandra,vulcanft/openmama,cloudsmith-io/openmama,vulcanft/openmama,dmaguire/OpenMAMA,philippreston/OpenMAMA,dmagOM/OpenMAMA-dynamic,MattMulhern/OpenMAMA,vulcanft/openmama,dpauls/OpenMAMA,dmaguire/OpenMAMA