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|  | 1 | +# Find if a Python module is installed | 
|  | 2 | +# Found at http://www.cmake.org/pipermail/cmake/2011-January/041666.html | 
|  | 3 | +# To use do: find_python_module(PyQt4 REQUIRED) | 
|  | 4 | +function(find_python_module module) | 
|  | 5 | + string(TOUPPER ${module} module_upper) | 
|  | 6 | + if(NOT PY_${module_upper}) | 
|  | 7 | + if(ARGC GREATER 1 AND ARGV1 STREQUAL "REQUIRED") | 
|  | 8 | + set(${module}_FIND_REQUIRED TRUE) | 
|  | 9 | + else() | 
|  | 10 | + set(${module}_FIND_REQUIRED FALSE) | 
|  | 11 | + endif() | 
|  | 12 | + # A module's location is usually a directory, but for binary modules | 
|  | 13 | + # it's a .so file. | 
|  | 14 | + execute_process(COMMAND "${PYTHON_EXECUTABLE}" "-c" | 
|  | 15 | + "import re, ${module}; print(re.compile('/__init__.py.*').sub('',${module}.__file__))" | 
|  | 16 | + RESULT_VARIABLE _${module}_status | 
|  | 17 | + OUTPUT_VARIABLE _${module}_location | 
|  | 18 | + ERROR_QUIET | 
|  | 19 | + OUTPUT_STRIP_TRAILING_WHITESPACE) | 
|  | 20 | + if(NOT _${module}_status) | 
|  | 21 | + set(PY_${module_upper} ${_${module}_location} CACHE STRING | 
|  | 22 | + "Location of Python module ${module}") | 
|  | 23 | + endif(NOT _${module}_status) | 
|  | 24 | + endif(NOT PY_${module_upper}) | 
|  | 25 | + find_package_handle_standard_args(PY_${module} DEFAULT_MSG PY_${module_upper}) | 
|  | 26 | + if(NOT PY_${module_upper}_FOUND AND ${module}_FIND_REQUIRED) | 
|  | 27 | + message(FATAL_ERROR "python module ${module} is not found") | 
|  | 28 | + endif() | 
|  | 29 | + | 
|  | 30 | + execute_process(COMMAND "${PYTHON_EXECUTABLE}" "-c" | 
|  | 31 | + "import sys, ${module}; sys.stdout.write(${module}.__version__)" | 
|  | 32 | + OUTPUT_VARIABLE _${module}_version | 
|  | 33 | + RESULT_VARIABLE _${module}_status | 
|  | 34 | + ERROR_QUIET | 
|  | 35 | + OUTPUT_STRIP_TRAILING_WHITESPACE) | 
|  | 36 | + if(NOT _${module}_status) | 
|  | 37 | + set(PY_${module_upper}_VERSION ${_${module}_version} CACHE STRING | 
|  | 38 | + "Version of Python module ${module}") | 
|  | 39 | + endif(NOT _${module}_status) | 
|  | 40 | + | 
|  | 41 | + set(PY_${module_upper}_FOUND ${PY_${module_upper}_FOUND} PARENT_SCOPE) | 
|  | 42 | + set(PY_${module_upper}_VERSION ${PY_${module_upper}_VERSION} PARENT_SCOPE) | 
|  | 43 | +endfunction(find_python_module) | 
|  | 44 | + | 
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