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# Find if a Python module is installed
# Found at http://www.cmake.org/pipermail/cmake/2011-January/041666.html
# To use do: find_python_module(PyQt4 REQUIRED)
# Keep filename as is
# lint_cmake: -convention/filename, -package/stdargs
include(FindPackageHandleStandardArgs)
function(find_python_module module)
string(TOUPPER ${module} module_upper)
if(NOT PY_${module_upper})
if(ARGC GREATER 1 AND ARGV1 STREQUAL "REQUIRED")
set(PY_${module}_FIND_REQUIRED TRUE)
endif()
if($ENV{SSG_USE_PIP_PACKAGES})
execute_process(COMMAND "${PYTHON_EXECUTABLE}" "-c"
"import platform; print(''.join('python'+platform.python_version()[:-2]))"
RESULT_VARIABLE _python_version_status
OUTPUT_VARIABLE _python_version
ERROR_QUIET
OUTPUT_STRIP_TRAILING_WHITESPACE)
if(NOT ${_python_version_status})
set(ENV{PYTHONPATH} "/usr/local/lib/${_python_version}/site-packages:/usr/local/lib64/${_python_version}/site-packages")
endif()
endif()
# A module's location is usually a directory, but for binary modules
# it's a .so file.
execute_process(COMMAND "${PYTHON_EXECUTABLE}" "-c"
"import re, ${module}; print(re.compile('/__init__.py.*').sub('',${module}.__file__))"
RESULT_VARIABLE _${module}_status
OUTPUT_VARIABLE _${module}_location
ERROR_QUIET
OUTPUT_STRIP_TRAILING_WHITESPACE)
if(NOT _${module}_status)
set(PY_${module_upper} ${_${module}_location} CACHE STRING
"Location of Python module ${module}")
endif()
endif()
find_package_handle_standard_args(PY_${module} DEFAULT_MSG PY_${module_upper})
endfunction()
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