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include(CMakeParseArguments)
# ensure that we are using the exact python version specified by
# 'WITH_PYTHON3', in case some included 3rd party libraries call
# 'find_package(Python3 ...) without specifying the exact version number. if
# the building host happens to have a higher version of python3, that version
# would be picked up instead by find_package(Python3). and that is not want we
# expect.
find_package(Python3 ${WITH_PYTHON3} EXACT
QUIET
REQUIRED
COMPONENTS Interpreter)
function(distutils_install_module name)
set(py_srcs setup.py README.rst requirements.txt test-requirements.txt bin ${name})
foreach(src ${py_srcs})
if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${src})
list(APPEND py_clone ${CMAKE_CURRENT_BINARY_DIR}/${src})
add_custom_command(
OUTPUT ${src}
DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${src}
COMMAND ${CMAKE_COMMAND} -E create_symlink ${CMAKE_CURRENT_SOURCE_DIR}/${src} ${src})
endif()
endforeach()
if(NOT TARGET ${name}-clone)
add_custom_target(${name}-clone ALL
DEPENDS ${py_clone})
endif()
cmake_parse_arguments(DU "" "INSTALL_SCRIPT" "" ${ARGN})
install(CODE "
set(options --prefix=${CMAKE_INSTALL_PREFIX})
if(DEFINED ENV{DESTDIR})
if(EXISTS /etc/debian_version)
list(APPEND options --install-layout=deb)
endif()
list(APPEND options
--root=\$ENV{DESTDIR}
--single-version-externally-managed)
endif()
if(NOT \"${DU_INSTALL_SCRIPT}\" STREQUAL \"\")
list(APPEND options --install-script=${DU_INSTALL_SCRIPT})
endif()
execute_process(
COMMAND ${Python3_EXECUTABLE}
setup.py install \${options}
WORKING_DIRECTORY \"${CMAKE_CURRENT_BINARY_DIR}\")")
endfunction(distutils_install_module)
function(distutils_add_cython_module target name src)
get_property(compiler_launcher GLOBAL PROPERTY RULE_LAUNCH_COMPILE)
get_property(link_launcher GLOBAL PROPERTY RULE_LAUNCH_LINK)
# When using ccache, CMAKE_C_COMPILER is ccache executable absolute path
# and the actual C compiler is CMAKE_C_COMPILER_ARG1.
# However with a naive
# set(PY_CC ${compiler_launcher} ${CMAKE_C_COMPILER} ${CMAKE_C_COMPILER_ARG1})
# distutils tries to execve something like "/usr/bin/cmake gcc" and fails.
# Removing the leading whitespace from CMAKE_C_COMPILER_ARG1 helps to avoid
# the failure.
string(STRIP "${CMAKE_C_COMPILER_ARG1}" c_compiler_arg1)
string(STRIP "${CMAKE_CXX_COMPILER_ARG1}" cxx_compiler_arg1)
# Note: no quotes, otherwise distutils will execute "/usr/bin/ccache gcc"
# CMake's implicit conversion between strings and lists is wonderful, isn't it?
set(PY_CFLAGS ${COMPILE_OPTIONS})
cmake_parse_arguments(DU "DISABLE_VTA" "" "" ${ARGN})
if(DU_DISABLE_VTA AND HAS_VTA)
list(APPEND PY_CFLAGS -fno-var-tracking-assignments)
endif()
list(APPEND PY_CPPFLAGS -iquote${CMAKE_SOURCE_DIR}/src/include -w)
# This little bit of magic wipes out __Pyx_check_single_interpreter()
# Note: this is reproduced in distutils_install_cython_module
list(APPEND PY_CPPFLAGS -D'void0=dead_function\(void\)')
list(APPEND PY_CPPFLAGS -D'__Pyx_check_single_interpreter\(ARG\)=ARG\#\#0')
set(PY_CC ${compiler_launcher} ${CMAKE_C_COMPILER} ${c_compiler_arg1})
set(PY_CXX ${compiler_launcher} ${CMAKE_CXX_COMPILER} ${cxx_compiler_arg1})
set(PY_LDSHARED ${link_launcher} ${CMAKE_C_COMPILER} ${c_compiler_arg1} "-shared")
execute_process(COMMAND "${Python3_EXECUTABLE}" -c
"import sysconfig; print(sysconfig.get_config_var('EXT_SUFFIX'))"
RESULT_VARIABLE result
OUTPUT_VARIABLE ext_suffix
ERROR_VARIABLE error
OUTPUT_STRIP_TRAILING_WHITESPACE)
if(NOT result EQUAL 0)
message(FATAL_ERROR "Unable to tell python extension's suffix: ${error}")
endif()
set(output_dir "${CYTHON_MODULE_DIR}/lib.3")
set(setup_py ${CMAKE_CURRENT_SOURCE_DIR}/setup.py)
if(DEFINED ENV{VERBOSE})
set(maybe_verbose --verbose)
endif()
add_custom_command(
OUTPUT ${output_dir}/${name}${ext_suffix}
COMMAND
env
CC="${PY_CC}"
CFLAGS="${PY_CFLAGS}"
CPPFLAGS="${PY_CPPFLAGS}"
CXX="${PY_CXX}"
LDSHARED="${PY_LDSHARED}"
OPT=\"-DNDEBUG -g -fwrapv -O2 -w\"
LDFLAGS=-L${CMAKE_LIBRARY_OUTPUT_DIRECTORY}
CYTHON_BUILD_DIR=${CMAKE_CURRENT_BINARY_DIR}
CEPH_LIBDIR=${CMAKE_LIBRARY_OUTPUT_DIRECTORY}
${Python3_EXECUTABLE} ${setup_py}
build ${maybe_verbose} --build-base ${CYTHON_MODULE_DIR}
--build-platlib ${output_dir}
MAIN_DEPENDENCY ${src}
DEPENDS ${setup_py}
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
add_custom_target(${target} ALL
DEPENDS ${output_dir}/${name}${ext_suffix})
endfunction(distutils_add_cython_module)
function(distutils_install_cython_module name)
get_property(compiler_launcher GLOBAL PROPERTY RULE_LAUNCH_COMPILE)
get_property(link_launcher GLOBAL PROPERTY RULE_LAUNCH_LINK)
set(PY_CC "${compiler_launcher} ${CMAKE_C_COMPILER}")
set(PY_LDSHARED "${link_launcher} ${CMAKE_C_COMPILER} -shared")
cmake_parse_arguments(DU "DISABLE_VTA" "" "" ${ARGN})
if(DU_DISABLE_VTA AND HAS_VTA)
set(CFLAG_DISABLE_VTA -fno-var-tracking-assignments)
endif()
if(DEFINED ENV{VERBOSE})
set(maybe_verbose --verbose)
endif()
install(CODE "
set(ENV{CC} \"${PY_CC}\")
set(ENV{LDSHARED} \"${PY_LDSHARED}\")
set(ENV{CPPFLAGS} \"-iquote${CMAKE_SOURCE_DIR}/src/include
-D'void0=dead_function\(void\)' \
-D'__Pyx_check_single_interpreter\(ARG\)=ARG\#\#0' \
${CFLAG_DISABLE_VTA}\")
set(ENV{LDFLAGS} \"-L${CMAKE_LIBRARY_OUTPUT_DIRECTORY}\")
set(ENV{CYTHON_BUILD_DIR} \"${CMAKE_CURRENT_BINARY_DIR}\")
set(ENV{CEPH_LIBDIR} \"${CMAKE_LIBRARY_OUTPUT_DIRECTORY}\")
set(options --prefix=${CMAKE_INSTALL_PREFIX})
if(DEFINED ENV{DESTDIR})
if(EXISTS /etc/debian_version)
list(APPEND options --install-layout=deb)
endif()
list(APPEND options --root=\$ENV{DESTDIR})
else()
list(APPEND options --root=/)
endif()
execute_process(
COMMAND
${Python3_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/setup.py
build ${maybe_verbose} --build-base ${CYTHON_MODULE_DIR}
--build-platlib ${CYTHON_MODULE_DIR}/lib.3
build_ext --cython-c-in-temp --build-temp ${CMAKE_CURRENT_BINARY_DIR} --cython-include-dirs ${PROJECT_SOURCE_DIR}/src/pybind/rados
install \${options} --single-version-externally-managed --record /dev/null
egg_info --egg-base ${CMAKE_CURRENT_BINARY_DIR}
${maybe_verbose}
WORKING_DIRECTORY \"${CMAKE_CURRENT_SOURCE_DIR}\"
RESULT_VARIABLE install_res)
if(NOT \"\${install_res}\" STREQUAL 0)
message(FATAL_ERROR \"Failed to build and install ${name} python module\")
endif()
")
endfunction(distutils_install_cython_module)
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