cmake: Allow PYTHON_SITE_PACKAGES_INSTALL_DIR set extern (#461)

The variable PYTHON_SITE_PACKAGES_INSTALL_DIR is kind of hardcoded in the CMakeLists.txt to .../dist-packages. This is not true for all linux distros. dist-packages comes from debian and debian like distros. Python core uses site-packages. We use an unintrusive way and allow the variable to be passed from cmake, so you at least have the option to set a different install location (i.e. site-packages) from extern. Signed-off-by: Matthias Schoepfer <[email protected]>
orocos · May 7, 2024 · faa74b7 · faa74b7
1 parent 129693e
commit faa74b7
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/python_orocos_kdl/CMakeLists.txt b/python_orocos_kdl/CMakeLists.txt
@@ -28,7 +28,7 @@ set(PYBIND11_PYTHON_VERSION ${PYTHON_VERSION} CACHE STRING "Python version used
 find_package(Python ${PYTHON_VERSION} COMPONENTS Interpreter Development REQUIRED)
 # get_python_lib in python3 produces path which isn't in sys.path: https://bugs.launchpad.net/ubuntu/+source/python3-stdlib-extensions/+bug/1832215
 # execute_process(COMMAND ${PYTHON_EXECUTABLE} -c "from distutils.sysconfig import get_python_lib; print(get_python_lib(plat_specific=True, prefix=''))" OUTPUT_VARIABLE PYTHON_SITE_PACKAGES OUTPUT_STRIP_TRAILING_WHITESPACE)
-set(PYTHON_SITE_PACKAGES_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/lib/python${Python_VERSION_MAJOR}.${Python_VERSION_MINOR}/dist-packages")  # This might be overridden below if built with catkin.
+set(PYTHON_SITE_PACKAGES_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/lib/python${Python_VERSION_MAJOR}.${Python_VERSION_MINOR}/dist-packages" CACHE STRING "Install location of the python package")  # This might be overridden below if built with catkin.
 set(LIBRARY_NAME "PyKDL")
 
 # catkin-specific configuration (optional)