SET(CMAKE_SHARED_LIBRARY_CREATE_FLAGS "-shared")
SET(CMAKE_DL_LIBS "-lgdi32" )
SET(CMAKE_SHARED_LIBRARY_PREFIX "")
SET(CMAKE_SHARED_LIBRARY_SUFFIX ".dll")
# no pic for gcc on cygwin
SET(CMAKE_SHARED_LIBRARY_C_FLAGS "")
SET(CMAKE_SHARED_LIBRARY_CXX_FLAGS "")