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python3Packages.llama-cpp-python: disable pythonImportsCheck when cudaSupport is enabled #465751

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Merged
ConnorBaker merged 1 commit into from
Dec 7, 2025
Merged

python3Packages.llama-cpp-python: disable pythonImportsCheck when cudaSupport is enabled #465751

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22 changes: 16 additions & 6 deletions pkgs/development/python-modules/llama-cpp-python/default.nix
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Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,7 @@
# nativeBuildInputs
cmake,
ninja,
autoAddDriverRunpath,

# build-system
pathspec,
Expand Down Expand Up @@ -73,20 +74,23 @@ buildPythonPackage rec {
# -mcpu, breaking linux build as follows:
#
# cc1: error: unknown value ‘native+nodotprod+noi8mm+nosve’ for ‘-mcpu’
"-DGGML_NATIVE=off"
"-DGGML_BUILD_NUMBER=1"
(lib.cmakeBool "GGML_NATIVE" false)
(lib.cmakeFeature "GGML_BUILD_NUMBER" "1")
]
++ lib.optionals cudaSupport [
"-DGGML_CUDA=on"
"-DCUDAToolkit_ROOT=${lib.getDev cudaPackages.cuda_nvcc}"
"-DCMAKE_CUDA_COMPILER=${lib.getExe cudaPackages.cuda_nvcc}"
(lib.cmakeBool "GGML_CUDA" true)
(lib.cmakeFeature "CUDAToolkit_ROOT" "${lib.getDev cudaPackages.cuda_nvcc}")
(lib.cmakeFeature "CMAKE_CUDA_COMPILER" "${lib.getExe cudaPackages.cuda_nvcc}")
];

enableParallelBuilding = true;

nativeBuildInputs = [
cmake
ninja
]
++ lib.optionals cudaSupport [
autoAddDriverRunpath
];

build-system = [
Expand Down Expand Up @@ -125,7 +129,13 @@ buildPythonPackage rec {
"test_real_llama"
];

pythonImportsCheck = [ "llama_cpp" ];
pythonImportsCheck = lib.optionals (!cudaSupport) [
# `libllama.so` is loaded at import time, and failing when cudaSupport is enabled as the cuda
# driver is missing in the sandbox:
# RuntimeError: Failed to load shared library '/nix/store/...-python3.13-llama-cpp-python-0.3.16/lib/python3.13/site-packages/llama_cpp/lib/libllama.so':
# libcuda.so.1: cannot open shared object file: No such file or directory
"llama_cpp"
];

passthru = {
updateScript = gitUpdater {
Expand Down
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