libtinyxml absolute path in the cmake export target files

[aurelien-enchanted-tools]

Hello,
dbecca0
branch humble [I'm not checking with the earlier branches]

The cmake export target files (*.cmake) contain absolute paths to libtinyxml files. Could you fix them to obtain relative paths in cmake export target file. For example, this allows to use them in cross-compilation system with sysroot.

Thanks you in advance.

[jiaxshi]

I met the same issue with cross compile in meta-ros.
urdfdom version: 3.0.2-2
ROS distro: humble
yocto: kirkstone
In target lib/urdfdom/cmake/urdfdom-config.cmake :

set(urdfdom_INCLUDE_DIRS "${urdfdom_DIR}/../../../include/urdfdom" "/local/mnt3/workspace/jiaxshi/projects/ros_ws/build/tmp-glibc/work/armv8-2a-qcom-linux/urdfdom/3.0.2-2-r0/recipe-sysroot/usr/include")

This is import in https://github.com/ros/urdfdom/blob/humble/cmake/urdfdom-config.cmake.in#6
and urdfdomExprot.cmake

set_target_properties(urdfdom::urdfdom_model PROPERTIES
  INTERFACE_COMPILE_FEATURES "cxx_std_14"
  INTERFACE_INCLUDE_DIRECTORIES "/local/mnt3/workspace/jiaxshi/projects/ros_ws/build/tmp-glibc/work/armv8-2a-qcom-linux/urdfdom/3.0.2-2-r0/recipe-sysroot/usr/include;${_IMPORT_PREFIX}/include/urdfdom"
  INTERFACE_LINK_LIBRARIES "console_bridge::console_bridge;urdfdom_headers::urdfdom_headers;/local/mnt3/workspace/jiaxshi/projects/ros_ws/build/tmp-glibc/work/armv8-2a-qcom-linux/urdfdom/3.0.2-2-r0/recipe-sysroot/usr/lib/libtinyxml.so"
  INTERFACE_SYSTEM_INCLUDE_DIRECTORIES "/local/mnt3/workspace/jiaxshi/projects/ros_ws/build/tmp-glibc/work/armv8-2a-qcom-linux/urdfdom/3.0.2-2-r0/recipe-sysroot/usr/include"
)