| # Macros and functions related to detecting details of the Python environment. |
| |
| # Detects a pybind11 package installed in the current python environment |
| # and sets variables to allow it to be found. This allows pybind11 to be |
| # installed via pip, which typically yields a much more recent version than |
| # the OS install, which will be available otherwise. |
| function(mlir_detect_pybind11_install) |
| if(pybind11_DIR) |
| message(STATUS "Using explicit pybind11 cmake directory: ${pybind11_DIR} (-Dpybind11_DIR to change)") |
| else() |
| message(STATUS "Checking for pybind11 in python path...") |
| execute_process( |
| COMMAND "${Python3_EXECUTABLE}" |
| -c "import pybind11;print(pybind11.get_cmake_dir(), end='')" |
| WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} |
| RESULT_VARIABLE STATUS |
| OUTPUT_VARIABLE PACKAGE_DIR |
| ERROR_QUIET) |
| if(NOT STATUS EQUAL "0") |
| message(STATUS "not found (install via 'pip install pybind11' or set pybind11_DIR)") |
| return() |
| endif() |
| message(STATUS "found (${PACKAGE_DIR})") |
| set(pybind11_DIR "${PACKAGE_DIR}" PARENT_SCOPE) |
| endif() |
| endfunction() |
