ENH: Add libusb1 on windows

CMake/External/External_Libusb.cmake

+if(NOT WIN32)
+  message(WARNING "System not supported. Only Windows is supported for External_Libusb.cmake.")
+  message(WARNING "Libusb-1.0 should already be installed on your system.")
+  return()
+endif()
+
+#-----------------------------------------------------------------------------
+# Set project prefix path
+#-----------------------------------------------------------------------------
+set(Libusb_PREFIX ${CMAKE_BINARY_DIR}/External/Libusb)
+set(Libusb_EXTRACT_DIR ${Libusb_PREFIX}/libusb-1.0.20)
+
+#-----------------------------------------------------------------------------
+# Set install commands
+#-----------------------------------------------------------------------------
+set(libusb_libdir "MS32")
+set(libusb_exedir "bin32")
+if(${CMAKE_GENERATOR} MATCHES "Win64")
+  set(libusb_libdir "MS64")
+  set(libusb_exedir "bin64")
+endif()
+
+set(copy_libusb_static_command
+  ${CMAKE_COMMAND} -E copy_directory
+  ${Libusb_EXTRACT_DIR}/${libusb_libdir}/static
+  ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${CMAKE_CFG_INTDIR}
+  )
+  
+set(copy_libusb_shared_command
+  ${CMAKE_COMMAND} -E copy_directory
+  ${Libusb_EXTRACT_DIR}/${libusb_libdir}/dll
+  ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/${CMAKE_CFG_INTDIR}
+  )
+
+set(copy_libusb_exe_command
+  ${CMAKE_COMMAND} -E copy_directory
+  ${Libusb_EXTRACT_DIR}/examples/${libusb_exedir}
+  ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/${CMAKE_CFG_INTDIR}
+  )
+
+#-----------------------------------------------------------------------------
+# Add External Project
+#-----------------------------------------------------------------------------
+include(imstkAddExternalProject)
+imstk_add_external_project( Libusb
+  URL http://downloads.sourceforge.net/project/libusb/libusb-1.0/libusb-1.0.20/libusb-1.0.20.7z
+  URL_MD5 a84466c2b8f88e1190c63ec271d4f46b
+  DOWNLOAD_DIR ${Libusb_PREFIX}
+  SOURCE_DIR ${Libusb_EXTRACT_DIR}
+  BINARY_DIR ${Libusb_EXTRACT_DIR}
+  UPDATE_COMMAND ${SKIP_STEP_COMMAND}
+  CONFIGURE_COMMAND ${SKIP_STEP_COMMAND}
+  BUILD_COMMAND ${SKIP_STEP_COMMAND}
+  INSTALL_COMMAND
+    ${copy_libusb_static_command}
+    COMMAND ${copy_libusb_shared_command}
+    COMMAND ${copy_libusb_exe_command}
+  RELATIVE_INCLUDE_PATH "include/libusb-1.0"
+  #VERBOSE
+  )

CMakeLists.txt

@@ -84,6 +84,7 @@ endif()
 
 if(WIN32)
   imstk_define_dependency(PThreads)
+  imstk_define_dependency(Libusb)
 endif()
 
 imstk_define_dependency(g3log)