CMake find_package doesn't work well using pixi-build

[Ericsii]

I'm trying to add a C++ package to my pixi environment.

because it's not on any conda channel, I tried to write a recipe file to build the package. But the find_package function in CMake did not find the packageConfig.cmake according to the CMake document.

Here is my pixi.toml

[project]
authors = ["Ericsii <[email protected]>"]
channels = ["robostack-humble", "robostack-staging", "conda-forge"]
name = "legged_navigation"
platforms = ["linux-64"]
version = "0.1.0"
preview = ["pixi-build"]

[tasks]

[dependencies]
compilers = ">=1.9.0,<2"
cmake = ">=3.31.6,<4"
pkg-config = ">=0.29.2,<0.30"
make = ">=4.4.1,<5"
ninja = ">=1.12.1,<2"
gtsam = ">=4.2.0,<5"
gtsam_points = { path = "./recipes/gtsam_points" }

recipes/gtsam_points/recipe.yaml

context:
  name: gtsam_points
  version: 1.0.7

package:
  name: ${{ name|lower }}
  version: ${{ version }}

source:
  git: https://github.com/koide3/gtsam_points.git
  tag: v${{ version }}

build:
  number: 0

requirements:
  build:
    - ${{ compiler('c') }}
    - ${{ compiler('cxx') }}
    - cmake
    - ninja
  host:
    - boost
    - eigen
    - gtsam
    - openmp
    - tbb

recipes/gtsam_points/build.sh

#! /bin/bash

extra_cmake_args=(
    -GNinja
    -DBUILD_TESTS=OFF
    -DBUILD_TESTS_PCL=OFF
    -DBUILD_DEMO=OFF
    -DBUILD_EXAMPLE=OFF
    -DBUILD_TOOLS=OFF
    -DBUILD_WITH_TBB=ON
    -DBUILD_WITH_OPENMP=ON
    -DBUILD_WITH_CUDA=OFF
    -DBUILD_WITH_CUDA_MULTIARCH=OFF
    -DBUILD_WITH_MARCH_NATIVE=OFF
    -DENABLE_CPPCHECK=OFF
    -DENABLE_COVERAGE=OFF
)

mkdir build && cd build

cmake ${CMAKE_ARGS} "${extra_cmake_args[@]}" \
    -DCMAKE_PREFIX_PATH=$PREFIX \
    -DCMAKE_INSTALL_PREFIX=$PREFIX \
    $SRC_DIR

ninja

# The `install` command will take care of copying the files to the right place
ninja install

[Ericsii]

Pixi build log here

build.log

[Ericsii]

I added a debug message to the CMakeLists.txt to check if the CMAKE_PREFIX_PATH is set. Then, I reran the conda_build.sh.

In the CMAKE_PREFIX_PATH, I did find the GTSAM config in $PREFIX/lib/cmake/GTSAM/GTSAMConfig.cmake. According to Config Mode Search Procedure, CMake should find it, but it doesn't.

[traversaro]

According to Config Mode Search Procedure, CMake should find it, but it doesn't.

It seems that a FindGTSAM.cmake module is present in the CMake module path, so that takes priority, and that is the one that does not work, see https://github.com/koide3/gtsam_points/blob/v1.0.7/cmake/FindGTSAM.cmake . It seems that the file was delete in recent versions? Probably you can add a patch deleting it?

[Ericsii]

Thank you! This works for me.