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fix cross-compilation issue with Numpy

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This commit is contained in:
Vincent Rabaud 2014-01-20 10:23:46 +01:00
parent 6bf599b1bc
commit 6cb90c0e97
1 changed files with 29 additions and 8 deletions
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37
cmake/OpenCVDetectPython.cmake
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@ -80,14 +80,29 @@ if(PYTHON_EXECUTABLE)
endif() endif()
SET(PYTHON_PACKAGES_PATH "${_PYTHON_PACKAGES_PATH}" CACHE PATH "Where to install the python packages.") SET(PYTHON_PACKAGES_PATH "${_PYTHON_PACKAGES_PATH}" CACHE PATH "Where to install the python packages.")
if(NOT PYTHON_NUMPY_INCLUDE_DIR) if(NOT CMAKE_CROSSCOMPILING)
# Attempt to discover the NumPy include directory. If this succeeds, then build python API with NumPy if(NOT PYTHON_NUMPY_INCLUDE_DIR)
execute_process(COMMAND ${PYTHON_EXECUTABLE} -c "import os; os.environ['DISTUTILS_USE_SDK']='1'; import numpy.distutils; print numpy.distutils.misc_util.get_numpy_include_dirs()[0]" # Attempt to discover the NumPy include directory. If this succeeds, then build python API with NumPy
RESULT_VARIABLE PYTHON_NUMPY_PROCESS execute_process(COMMAND ${PYTHON_EXECUTABLE} -c "import os; os.environ['DISTUTILS_USE_SDK']='1'; import numpy.distutils; print numpy.distutils.misc_util.get_numpy_include_dirs()[0]"
OUTPUT_VARIABLE PYTHON_NUMPY_INCLUDE_DIR RESULT_VARIABLE PYTHON_NUMPY_PROCESS
OUTPUT_STRIP_TRAILING_WHITESPACE) OUTPUT_VARIABLE PYTHON_NUMPY_INCLUDE_DIR
OUTPUT_STRIP_TRAILING_WHITESPACE)
if(PYTHON_NUMPY_PROCESS EQUAL 0) if(PYTHON_NUMPY_PROCESS EQUAL 0)
file(TO_CMAKE_PATH "${PYTHON_NUMPY_INCLUDE_DIR}" _PYTHON_NUMPY_INCLUDE_DIR)
set(PYTHON_NUMPY_INCLUDE_DIR ${_PYTHON_NUMPY_INCLUDE_DIR} CACHE PATH "Path to numpy headers")
endif()
endif()
else()
if(NOT PYTHON_NUMPY_INCLUDE_DIR)
message(STATUS "Cannot probe for Python/Numpy support (because we are cross-compiling OpenCV)")
message(STATUS "If you want to enable Python/Numpy support, set the following variables:")
message(STATUS " PYTHON_EXECUTABLE")
message(STATUS " PYTHON_INCLUDE_DIR")
message(STATUS " PYTHON_LIBRARY")
message(STATUS " PYTHON_NUMPY_INCLUDE_DIR")
message(STATUS " PYTHON_NUMPY_VERSION")
else()
file(TO_CMAKE_PATH "${PYTHON_NUMPY_INCLUDE_DIR}" _PYTHON_NUMPY_INCLUDE_DIR) file(TO_CMAKE_PATH "${PYTHON_NUMPY_INCLUDE_DIR}" _PYTHON_NUMPY_INCLUDE_DIR)
set(PYTHON_NUMPY_INCLUDE_DIR ${_PYTHON_NUMPY_INCLUDE_DIR} CACHE PATH "Path to numpy headers") set(PYTHON_NUMPY_INCLUDE_DIR ${_PYTHON_NUMPY_INCLUDE_DIR} CACHE PATH "Path to numpy headers")
endif() endif()
@ -95,10 +110,16 @@ if(PYTHON_EXECUTABLE)
if(PYTHON_NUMPY_INCLUDE_DIR) if(PYTHON_NUMPY_INCLUDE_DIR)
set(PYTHON_USE_NUMPY TRUE) set(PYTHON_USE_NUMPY TRUE)
execute_process(COMMAND ${PYTHON_EXECUTABLE} -c "import numpy; print numpy.version.version" if(NOT CMAKE_CROSSCOMPILING)
execute_process(COMMAND ${PYTHON_EXECUTABLE} -c "import numpy; print numpy.version.version"
RESULT_VARIABLE PYTHON_NUMPY_PROCESS RESULT_VARIABLE PYTHON_NUMPY_PROCESS
OUTPUT_VARIABLE PYTHON_NUMPY_VERSION OUTPUT_VARIABLE PYTHON_NUMPY_VERSION
OUTPUT_STRIP_TRAILING_WHITESPACE) OUTPUT_STRIP_TRAILING_WHITESPACE)
else()
if(NOT PYTHON_NUMPY_VERSION)
set(PYTHON_NUMPY_VERSION "undefined - cannot be probed because of the cross-compilation")
endif()
endif()
endif() endif()
endif(NOT ANDROID AND NOT IOS) endif(NOT ANDROID AND NOT IOS)