2020-11-23 05:01:15 +08:00
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# Forked and adapted from MLIRDetectPythonEnv.cmake upstream. The eventual
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# goal is to use the upstream configuration but until that is ready, just
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# move/adapt these facilities. Please try to not diverge.
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# Macros and functions related to detecting details of the Python environment.
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# Detects a pybind11 package installed in the current python environment
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# and sets variables to allow it to be found. This allows pybind11 to be
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# installed via pip, which typically yields a much more recent version than
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# the OS install, which will be available otherwise.
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function(npcomp_detect_pybind11_install)
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if(pybind11_DIR)
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message(STATUS "Using explicit pybind11 cmake directory: ${pybind11_DIR} (-Dpybind11_DIR to change)")
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else()
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message(CHECK_START "Checking for pybind11 in python path...")
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execute_process(
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2020-11-25 05:10:27 +08:00
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COMMAND "${Python3_EXECUTABLE}"
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2020-11-23 05:01:15 +08:00
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-c "import pybind11;print(pybind11.get_cmake_dir(), end='')"
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WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
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RESULT_VARIABLE STATUS
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OUTPUT_VARIABLE PACKAGE_DIR
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ERROR_QUIET)
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if(NOT STATUS EQUAL "0")
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message(CHECK_FAIL "not found (install via 'pip install pybind11' or set pybind11_DIR)")
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return()
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endif()
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message(CHECK_PASS "found (${PACKAGE_DIR})")
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set(pybind11_DIR "${PACKAGE_DIR}" PARENT_SCOPE)
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endif()
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endfunction()
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