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######################################################################################
# Python extension builder
######################################################################################
# yoh(Debian):
# We are just building for a single version and all the magic there often leads to
# breakages, so let's figure the paths for a single default Python out "manually"
#include(FindPythonInterp)
#include(FindPythonLibs)
find_program(CYTHON_EXECUTABLE cython)
find_program(PYTHON_EXECUTABLE python)
# Figure out installation path
execute_process(COMMAND
${PYTHON_EXECUTABLE} -c "from distutils.sysconfig import get_python_lib; print(get_python_lib(prefix='${CMAKE_INSTALL_PREFIX}'))"
OUTPUT_VARIABLE PYTHON_SITE_PACKAGES OUTPUT_STRIP_TRAILING_WHITESPACE)
# Include headers
execute_process(COMMAND
${PYTHON_EXECUTABLE} -c "from distutils.sysconfig import get_python_inc; print(get_python_inc())"
OUTPUT_VARIABLE PYTHON_INCLUDE_PATH OUTPUT_STRIP_TRAILING_WHITESPACE)
# Figure out numpy include path
execute_process(COMMAND
${PYTHON_EXECUTABLE} -c "import numpy; print(numpy.get_include())"
OUTPUT_VARIABLE NUMPY_INCLUDE_PATH OUTPUT_STRIP_TRAILING_WHITESPACE)
# How to Cython the .pyx file
add_custom_command(OUTPUT freenect.c
COMMAND ${CYTHON_EXECUTABLE} -o freenect.c "${CMAKE_CURRENT_SOURCE_DIR}/freenect.pyx")
list(APPEND ADDITIONAL_MAKE_CLEAN_FILES freenect.c)
# Compile the extension
add_library(cython_freenect MODULE freenect.c)
set_target_properties(cython_freenect PROPERTIES
PREFIX ""
OUTPUT_NAME "freenect"
LIBRARY_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
target_link_libraries(cython_freenect freenect_sync ${PYTHON_LIBRARIES})
include_directories(${PYTHON_INCLUDE_PATH} ../c_sync/ ${NUMPY_INCLUDE_PATH})
# Install the extension
install(TARGETS cython_freenect
DESTINATION ${PYTHON_SITE_PACKAGES})
# TODO: decide on what to do with demo_ scripts and were to install
# them
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