bugfix non-export of rosjava maven's environment variable.

Author: stonier

cmake/rosjava.cmake.em

@@ -44,6 +44,8 @@ macro(_rosjava_env)
     set(ROSJAVA_ENV $ENV{ROS_MAVEN_DEPLOYMENT_PATH})
     if(NOT ROSJAVA_ENV)
       set(ROSJAVA_ENV "ROS_MAVEN_DEPLOYMENT_PATH=${CATKIN_DEVEL_PREFIX}/${CATKIN_GLOBAL_MAVEN_DESTINATION}")
+    else()
+      set(ROSJAVA_ENV "ROS_MAVEN_DEPLOYMENT_PATH=${ROSJAVA_ENV}")
     endif()
 endmacro()