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@@ -0,0 +1,63 @@
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+# toplevel CMakeLists.txt for a catkin workspace
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+# catkin/cmake/toplevel.cmake
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+
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+cmake_minimum_required(VERSION 2.8.3)
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+
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+set(CATKIN_TOPLEVEL TRUE)
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+
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+# search for catkin within the workspace
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+set(_cmd "catkin_find_pkg" "catkin" "${CMAKE_SOURCE_DIR}")
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+execute_process(COMMAND ${_cmd}
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+ RESULT_VARIABLE _res
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+ OUTPUT_VARIABLE _out
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+ ERROR_VARIABLE _err
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+ OUTPUT_STRIP_TRAILING_WHITESPACE
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+ ERROR_STRIP_TRAILING_WHITESPACE
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+)
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+if(NOT _res EQUAL 0 AND NOT _res EQUAL 2)
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+ # searching fot catkin resulted in an error
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+ string(REPLACE ";" " " _cmd_str "${_cmd}")
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+ message(FATAL_ERROR "Search for 'catkin' in workspace failed (${_cmd_str}): ${_err}")
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+endif()
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+
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+# include catkin from workspace or via find_package()
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+if(_res EQUAL 0)
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+ set(catkin_EXTRAS_DIR "${CMAKE_SOURCE_DIR}/${_out}/cmake")
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+ # include all.cmake without add_subdirectory to let it operate in same scope
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+ include(${catkin_EXTRAS_DIR}/all.cmake NO_POLICY_SCOPE)
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+ add_subdirectory("${_out}")
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+
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+else()
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+ # use either CMAKE_PREFIX_PATH explicitly passed to CMake as a command line argument
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+ # or CMAKE_PREFIX_PATH from the environment
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+ if(NOT DEFINED CMAKE_PREFIX_PATH)
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+ if(NOT "$ENV{CMAKE_PREFIX_PATH}" STREQUAL "")
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+ string(REPLACE ":" ";" CMAKE_PREFIX_PATH $ENV{CMAKE_PREFIX_PATH})
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+ endif()
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+ endif()
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+
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+ # list of catkin workspaces
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+ set(catkin_search_path "")
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+ foreach(path ${CMAKE_PREFIX_PATH})
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+ if(EXISTS "${path}/.catkin")
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+ list(FIND catkin_search_path ${path} _index)
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+ if(_index EQUAL -1)
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+ list(APPEND catkin_search_path ${path})
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+ endif()
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+ endif()
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+ endforeach()
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+
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+ # search for catkin in all workspaces
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+ set(CATKIN_TOPLEVEL_FIND_PACKAGE TRUE)
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+ find_package(catkin QUIET
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+ NO_POLICY_SCOPE
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+ PATHS ${catkin_search_path}
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+ NO_DEFAULT_PATH NO_CMAKE_FIND_ROOT_PATH)
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+ unset(CATKIN_TOPLEVEL_FIND_PACKAGE)
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+
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+ if(NOT catkin_FOUND)
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+ message(FATAL_ERROR "find_package(catkin) failed. catkin was neither found in the workspace nor in the CMAKE_PREFIX_PATH. One reason may be that no ROS setup.sh was sourced before.")
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+ endif()
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+endif()
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+
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+catkin_workspace()
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