cmake warnings

[tylerjw]

I am using the Rolling release and get these warnings when following the instructions to use backward_ros:

--- stderr: moveit_ros_move_group                                           
CMake Warning (dev) at /usr/local/share/cmake-3.20/Modules/FindPackageHandleStandardArgs.cmake:438 (message):
  The package name passed to `find_package_handle_standard_args` (libdw) does
  not match the name of the calling package (backward_ros).  This can lead to
  problems in calling code that expects `find_package` result variables
  (e.g., `_FOUND`) to follow a certain pattern.
Call Stack (most recent call first):
  /opt/ros/rolling/share/backward_ros/cmake/BackwardConfig.cmake:55 (find_package_handle_standard_args)
  /opt/ros/rolling/share/backward_ros/cmake/backward_rosConfig.cmake:41 (include)
  /home/tyler/code/rolling/ws/install/moveit_common/share/moveit_common/cmake/moveit_package.cmake:36 (find_package)
  CMakeLists.txt:6 (moveit_package)
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Warning (dev) at /usr/local/share/cmake-3.20/Modules/FindPackageHandleStandardArgs.cmake:438 (message):
  The package name passed to `find_package_handle_standard_args` (libbfd)
  does not match the name of the calling package (backward_ros).  This can
  lead to problems in calling code that expects `find_package` result
  variables (e.g., `_FOUND`) to follow a certain pattern.
Call Stack (most recent call first):
  /opt/ros/rolling/share/backward_ros/cmake/BackwardConfig.cmake:66 (find_package_handle_standard_args)
  /opt/ros/rolling/share/backward_ros/cmake/backward_rosConfig.cmake:41 (include)
  /home/tyler/code/rolling/ws/install/moveit_common/share/moveit_common/cmake/moveit_package.cmake:36 (find_package)
  CMakeLists.txt:6 (moveit_package)
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Warning (dev) at /usr/local/share/cmake-3.20/Modules/FindPackageHandleStandardArgs.cmake:438 (message):
  The package name passed to `find_package_handle_standard_args` (Backward)
  does not match the name of the calling package (backward_ros).  This can
  lead to problems in calling code that expects `find_package` result
  variables (e.g., `_FOUND`) to follow a certain pattern.
Call Stack (most recent call first):
  /opt/ros/rolling/share/backward_ros/cmake/BackwardConfig.cmake:128 (find_package_handle_standard_args)
  /opt/ros/rolling/share/backward_ros/cmake/backward_rosConfig.cmake:41 (include)
  /home/tyler/code/rolling/ws/install/moveit_common/share/moveit_common/cmake/moveit_package.cmake:36 (find_package)
  CMakeLists.txt:6 (moveit_package)
This warning is for project developers.  Use -Wno-dev to suppress it.

[v4hn]

It seems the usual way to include sub-dependencies in a config (and avoid this warning) is find_dependency.
But I did not dig deep enough to propose a patch.

[saikishor]

Hello!

Usually, just having a find_package(backward_ros) and adding the dependency should be fine. Sorry for not responding to this long back. Closing this for now, if the issue persists feel free to reopen.

Thank you!

Best Regards,
PAL Robotics Team.

[v4hn]

Please re-open the issue, it is still valid.

On ROS-O with Ubuntu 24.04 we still get this output:

Console Warnings

-- ==> add_subdirectory(backward_test)
CMake Warning (dev) at /usr/share/cmake-3.28/Modules/FindPackageHandleStandardArgs.cmake:438 (message):
  The package name passed to `find_package_handle_standard_args` (libdw) does
  not match the name of the calling package (backward_ros).  This can lead to
  problems in calling code that expects `find_package` result variables
  (e.g., `_FOUND`) to follow a certain pattern.
Call Stack (most recent call first):
  /opt/ros/one/share/backward_ros/cmake/BackwardConfig.cmake:55 (find_package_handle_standard_args)
  /opt/ros/one/share/backward_ros/cmake/backward_rosConfig.cmake:224 (include)
  backward_test/CMakeLists.txt:6 (find_package)
This warning is for project developers.  Use -Wno-dev to suppress it.

-- Found libdw: /usr/lib/x86_64-linux-gnu/libdw.so
CMake Warning (dev) at /usr/share/cmake-3.28/Modules/FindPackageHandleStandardArgs.cmake:438 (message):
  The package name passed to `find_package_handle_standard_args` (libbfd)
  does not match the name of the calling package (backward_ros).  This can
  lead to problems in calling code that expects `find_package` result
  variables (e.g., `_FOUND`) to follow a certain pattern.
Call Stack (most recent call first):
  /opt/ros/one/share/backward_ros/cmake/BackwardConfig.cmake:66 (find_package_handle_standard_args)
  /opt/ros/one/share/backward_ros/cmake/backward_rosConfig.cmake:224 (include)
  backward_test/CMakeLists.txt:6 (find_package)
This warning is for project developers.  Use -Wno-dev to suppress it.

-- Could NOT find libbfd (missing: LIBBFD_LIBRARY LIBBFD_INCLUDE_DIR)
-- BACKWARD_HAS_UNWIND=1
-- BACKWARD_HAS_BACKTRACE=0
-- BACKWARD_HAS_BACKTRACE_SYMBOL=0
-- BACKWARD_HAS_DW=1
-- BACKWARD_HAS_BFD=0
CMake Warning (dev) at /usr/share/cmake-3.28/Modules/FindPackageHandleStandardArgs.cmake:438 (message):
  The package name passed to `find_package_handle_standard_args` (Backward)
  does not match the name of the calling package (backward_ros).  This can
  lead to problems in calling code that expects `find_package` result
  variables (e.g., `_FOUND`) to follow a certain pattern.
Call Stack (most recent call first):
  /opt/ros/one/share/backward_ros/cmake/BackwardConfig.cmake:128 (find_package_handle_standard_args)
  /opt/ros/one/share/backward_ros/cmake/backward_rosConfig.cmake:224 (include)
  backward_test/CMakeLists.txt:6 (find_package)
This warning is for project developers.  Use -Wno-dev to suppress it.

-- Found Backward: /opt/ros/one/share/backward_ros/cmake
-- ==> add_subdirectory(backward_test)
CMake Warning (dev) at /usr/share/cmake-3.28/Modules/FindPackageHandleStandardArgs.cmake:438 (message):
  The package name passed to `find_package_handle_standard_args` (libdw) does
  not match the name of the calling package (backward_ros).  This can lead to
  problems in calling code that expects `find_package` result variables
  (e.g., `_FOUND`) to follow a certain pattern.
Call Stack (most recent call first):
  /opt/ros/one/share/backward_ros/cmake/BackwardConfig.cmake:55 (find_package_handle_standard_args)
  /opt/ros/one/share/backward_ros/cmake/backward_rosConfig.cmake:224 (include)
  backward_test/CMakeLists.txt:6 (find_package)
This warning is for project developers.  Use -Wno-dev to suppress it.

-- Found libdw: /usr/lib/x86_64-linux-gnu/libdw.so
CMake Warning (dev) at /usr/share/cmake-3.28/Modules/FindPackageHandleStandardArgs.cmake:438 (message):
  The package name passed to `find_package_handle_standard_args` (libbfd)
  does not match the name of the calling package (backward_ros).  This can
  lead to problems in calling code that expects `find_package` result
  variables (e.g., `_FOUND`) to follow a certain pattern.
Call Stack (most recent call first):
  /opt/ros/one/share/backward_ros/cmake/BackwardConfig.cmake:66 (find_package_handle_standard_args)
  /opt/ros/one/share/backward_ros/cmake/backward_rosConfig.cmake:224 (include)
  backward_test/CMakeLists.txt:6 (find_package)
This warning is for project developers.  Use -Wno-dev to suppress it.

-- Could NOT find libbfd (missing: LIBBFD_LIBRARY LIBBFD_INCLUDE_DIR)
-- BACKWARD_HAS_UNWIND=1
-- BACKWARD_HAS_BACKTRACE=0
-- BACKWARD_HAS_BACKTRACE_SYMBOL=0
-- BACKWARD_HAS_DW=1
-- BACKWARD_HAS_BFD=0
CMake Warning (dev) at /usr/share/cmake-3.28/Modules/FindPackageHandleStandardArgs.cmake:438 (message):
  The package name passed to `find_package_handle_standard_args` (Backward)
  does not match the name of the calling package (backward_ros).  This can
  lead to problems in calling code that expects `find_package` result
  variables (e.g., `_FOUND`) to follow a certain pattern.
Call Stack (most recent call first):
  /opt/ros/one/share/backward_ros/cmake/BackwardConfig.cmake:128 (find_package_handle_standard_args)
  /opt/ros/one/share/backward_ros/cmake/backward_rosConfig.cmake:224 (include)
  backward_test/CMakeLists.txt:6 (find_package)
This warning is for project developers.  Use -Wno-dev to suppress it.

-- Found Backward: /opt/ros/one/share/backward_ros/cmake

In ROS2, the same find_package_handle_standard_args calls are used, so I believe this warning is valid there too:

CMake Warning (dev) at /usr/share/cmake-3.28/Modules/FindPackageHandleStandardArgs.cmake:438 (message):
  The package name passed to `find_package_handle_standard_args` (libdw) does not match the name of the calling package (backward_ros).

Greetings from Hamburg!

[saikishor]

@v4hn Thank you. I've reopened the issue.