Add include directories for OpenTimeConfig.cmake/OpenTimelineIOConfig… (#916)

* Add include directories for OpenTimeConfig.cmake/OpenTimelineIOConfig.cmake

* Add a conditional for OTIO_DEPENDENCIES_INSTALL

Author: darbyjohnston

src/opentime/CMakeLists.txt

@@ -43,6 +43,7 @@ if(OTIO_CXX_INSTALL)
 
     install(TARGETS opentime
             EXPORT OpenTimeConfig
+            INCLUDES DESTINATION "${OTIO_RESOLVED_CXX_INSTALL_DIR}/include"
             ARCHIVE DESTINATION "${OTIO_RESOLVED_CXX_DYLIB_INSTALL_DIR}"
             LIBRARY DESTINATION "${OTIO_RESOLVED_CXX_DYLIB_INSTALL_DIR}"
             RUNTIME DESTINATION "${OTIO_RESOLVED_CXX_DYLIB_INSTALL_DIR}")

src/opentimelineio/CMakeLists.txt

@@ -107,8 +107,14 @@ if(OTIO_CXX_INSTALL)
     install(FILES ${OPENTIMELINEIO_HEADER_FILES} 
             DESTINATION "${OTIO_RESOLVED_CXX_INSTALL_DIR}/include/opentimelineio")
 
+    set(OPENTIMELINEIO_INCLUDES ${OTIO_RESOLVED_CXX_INSTALL_DIR}/include)
+    if(OTIO_DEPENDENCIES_INSTALL)
+        list(APPEND OPENTIMELINEIO_INCLUDES ${OTIO_RESOLVED_CXX_INSTALL_DIR}/include/opentimelineio/deps)
+    endif()
+
     install(TARGETS opentimelineio
            EXPORT OpenTimelineIOConfig
+           INCLUDES DESTINATION "${OPENTIMELINEIO_INCLUDES}"
            ARCHIVE DESTINATION "${OTIO_RESOLVED_CXX_DYLIB_INSTALL_DIR}"
            LIBRARY DESTINATION "${OTIO_RESOLVED_CXX_DYLIB_INSTALL_DIR}"
            RUNTIME DESTINATION "${OTIO_RESOLVED_CXX_DYLIB_INSTALL_DIR}")