Added changes to get Static libs to work w/ OPENMM_EXPORT setting

platforms/cuda/staticTarget/CMakeLists.txt

@@ -17,6 +17,12 @@ CUDA_INCLUDE_DIRECTORIES(BEFORE ${CMAKE_SOURCE_DIR}/platforms/cuda/../src)
 
 CUDA_ADD_LIBRARY(${STATIC_TARGET} STATIC ${SOURCE_FILES} ${SOURCE_INCLUDE_FILES} ${API_ABS_INCLUDE_FILES})
 
+# required for getting OPENMM_EXPORT to be set correctly in 'class OPENMM_EXPORT CudaStreamFactory', ... 
+# see OpenMM/openmmapi/include/internal/windowsExport.h for details
+
+SET( CUDA_STATIC_COMPILE_FLAG "-DOPENMM_BUILDING_STATIC_LIBRARY -DOPENMM_USE_STATIC_LIBRARIES")
+SET_TARGET_PROPERTIES(${STATIC_TARGET} PROPERTIES COMPILE_FLAGS ${CUDA_STATIC_COMPILE_FLAG})
+
 TARGET_LINK_LIBRARIES(${STATIC_TARGET} debug ${OPENMM_LIBRARY_NAME}_static_d optimized ${OPENMM_LIBRARY_NAME}_static)
 
 INSTALL_TARGETS(/lib RUNTIME_DIRECTORY /lib ${STATIC_TARGET})