CMake search path wrongly separated #70
Description
Hi,
I have been packaging a few additional ROS packages to the ones already packaged (I'm happy to make a merge request if you're interested), this has worked very well, but I have an issue for pcl_ros.
My fork and the branch in which I have packaged the additional ROS packages can be found here: https://github.com/nschoe/nixpkgs/tree/airapkgs_PCL_ROS . Everything is in pkgs/development/ros-modules/ as you started it.
I'm linking to my own github because I haven't double-checked the code enough to offer a merge request (but I can, if it's better).
Just so you know: I have freshly (like yesterday) git pull your nixos-unstable branch, and merged it in my PCL_ROS branch. So this branch is up-to-date with yours.
So pcl_ros depends on pcl_conversions, so I have packaged pcl_conversions too (https://github.com/nschoe/nixpkgs/blob/airapkgs_PCL_ROS/pkgs/development/ros-modules/pcl_conversions/default.nix).
When I create a simple nix-shell with pcl_conversions in buildInputs, it work no problem.
Then I packaged pcl_ros (https://github.com/nschoe/nixpkgs/blob/airapkgs_PCL_ROS/pkgs/development/ros-modules/pcl_ros/default.nix), but when I put pcl_ros in my shell.nix's buildInputs, this time I get an error (here's the end of it):
-- Found PythonInterp: /nix/store/nrl0l79a48924xb0897ap572xf29ciir-python3-3.6.6/bin/python (found version "3.6.6")
-- Using PYTHON_EXECUTABLE: /nix/store/nrl0l79a48924xb0897ap572xf29ciir-python3-3.6.6/bin/python
-- Using default Python package layout
-- Found PY_em: /nix/store/bsga2zrxh8nrd76j3ixv7yqi5h8bwa7k-empy-3.3.2/lib/python3.6/site-packages/em.py
-- Using empy: /nix/store/bsga2zrxh8nrd76j3ixv7yqi5h8bwa7k-empy-3.3.2/lib/python3.6/site-packages/em.py
-- Using CATKIN_ENABLE_TESTING: OFF
-- catkin 0.7.11
CMake Error at /nix/store/fa7sbb3fhaxwmqh1v096gcyc2rd606wc-pcl_conversions-1.6.2/share/pcl_conversions/cmake/pcl_conversionsConfig.cmake:113 (message):
Project 'pcl_conversions' specifies
'/nix/store/m8fkjfznkx88qmn6mi4x9q7njamirxjx-eigen-3.3.4//nix/store/m8fkjfznkx88qmn6mi4x9q7njamirxjx-eigen-3.3.4/include/eigen3'
as an include dir, which is not found. It does neither exist as an
absolute directory nor in
'/nix/store/fa7sbb3fhaxwmqh1v096gcyc2rd606wc-pcl_conversions-1.6.2//nix/store/m8fkjfznkx88qmn6mi4x9q7njamirxjx-eigen-3.3.4//nix/store/m8fkjfznkx88qmn6mi4x9q7njamirxjx-eigen-3.3.4/include/eigen3'.
Check the issue tracker
'https://github.com/ros-perception/perception_pcl/issues' and consider
creating a ticket if the problem has not been reported yet.
Call Stack (most recent call first):
/nix/store/m71xl0jjv1kax8zpk4fr6qsj89f5kk2d-catkin-0.7.11/share/catkin/cmake/catkinConfig.cmake:76 (find_package)
CMakeLists.txt:37 (find_package)
-- Configuring incomplete, errors occurred!
See also "/tmp/nix-build-pcl_ros-1.6.2.drv-0/source/build/CMakeFiles/CMakeOutput.log".
See also "/tmp/nix-build-pcl_ros-1.6.2.drv-0/source/build/CMakeFiles/CMakeError.log".
builder for '/nix/store/ishzgx575g1iyxmw44626lmy48nvz73b-pcl_ros-1.6.2.drv' failed with exit code 1
error: build of '/nix/store/ishzgx575g1iyxmw44626lmy48nvz73b-pcl_ros-1.6.2.drv' failed
The weird thing is when it looks for Project 'pcl_conversions' specifies '/nix/store/m8fkjfznkx88qmn6mi4x9q7njamirxjx-eigen-3.3.4//nix/store/m8fkjfznkx88qmn6mi4x9q7njamirxjx-eigen-3.3.4/include/eigen3' as an include dir.
There seems to be a problem separating the paths: it is missing an : between ...njamirxjx-eigen-3.3.4/ and /nix/store....
I'm a bit lost as to where I should look : where is the mistake likely to be made?
Also why does pcl_conversions compile and work without problem in nix-shell, but fails when it's a dependency of pcl_ros?