Set install RPATH in pixi config

[jslee02]

Summary

• update pixi.toml config task so CMake installs with an RPATH

Testing

• pixi run build-tests (fails: pixi command not found)
• pixi run test (fails: pixi command not found)

[Copilot]

Pull Request Overview

This PR updates the Pixi CMake configuration in pixi.toml to install with an RPATH.

• Enables CMAKE_BUILD_WITH_INSTALL_RPATH=ON
• Sets CMAKE_INSTALL_RPATH to the Conda lib directory
• Moves CMAKE_INSTALL_PREFIX to group all install-related flags

Comments suppressed due to low confidence (3)

pixi.toml:55

• [nitpick] Consider adding a comment explaining why CMAKE_BUILD_WITH_INSTALL_RPATH is enabled, so future readers understand its purpose in the Conda-based install.

-        -DCMAKE_BUILD_WITH_INSTALL_RPATH=ON \

pixi.toml:57

• [nitpick] Hardcoding $CONDA_PREFIX/lib can reduce portability; consider using a relative RPATH like $ORIGIN/../lib or enabling CMAKE_INSTALL_RPATH_USE_LINK_PATH to automatically include link paths.

-        -DCMAKE_INSTALL_RPATH=$CONDA_PREFIX/lib \

pixi.toml:55

• Add a test or CI check to verify that installed binaries actually carry the intended RPATH, ensuring the new flags have the desired effect.

-        -DCMAKE_BUILD_WITH_INSTALL_RPATH=ON \

[Copilot]

Pull Request Overview

This PR updates the CMake invocation in the pixi.toml config to embed an install RPATH pointing at the Conda library directory.

• Enables CMAKE_BUILD_WITH_INSTALL_RPATH so binaries carry the RPATH at build time
• Sets CMAKE_INSTALL_RPATH to $CONDA_PREFIX/lib
• Moves CMAKE_INSTALL_PREFIX to follow the RPATH flags for clarity

Comments suppressed due to low confidence (2)

pixi.toml:57

• [nitpick] Embedding an absolute $CONDA_PREFIX/lib path can break relocatable installs; consider using a relative RPATH like $ORIGIN/../lib or enabling CMAKE_INSTALL_RPATH_USE_LINK_PATH=ON to automatically include linked library paths.

-        -DCMAKE_INSTALL_RPATH=$CONDA_PREFIX/lib \

pixi.toml:55

• If you want CMake to propagate dependency paths into the install RPATH, you may also enable -DCMAKE_INSTALL_RPATH_USE_LINK_PATH=ON alongside CMAKE_BUILD_WITH_INSTALL_RPATH.

-        -DCMAKE_BUILD_WITH_INSTALL_RPATH=ON \