Added flag to CMakeLists.txt to enable setting the name of libboost_program_options as it has an additional suffix under Mac OS.

CMakeLists.txt

@@ -117,12 +117,15 @@ else()
 endif()
     
 if(Boost_FOUND)
+	if (NOT BOOST_PROGRAM_OPTIONS_LIBRARY)
 		set(BOOST_PROGRAM_OPTIONS_LIBRARY "boost_program_options")
+	endif()
 	include_directories(${Boost_INCLUDE_DIRS})
 
 	if ((NOT Boost_LIBRARY_DIRS) OR ("${Boost_LIBRARY_DIRS}" STREQUAL ""))
 		set(Boost_LIBRARY_DIRS "${Boost_INCLUDE_DIRS}/stage/lib")
 	endif ()
+	
 	link_directories(${Boost_LIBRARY_DIRS})
 endif(Boost_FOUND)