CMAKE: FindNumpy.cmake

Signed-off-by: Rashad Kanavath <rashad.kanavath@c-s.fr>

CMake/FindNumpy.cmake

+# - Find Numpy
+# Find the native numpy includes
+#
+#   NUMPY_FOUND        - True if Numpy headers are found.
+#   NUMPY_INCLUDE_DIR   - where to find numpy/arrayobject.h, etc.
+
+EXEC_PROGRAM ("${PYTHON_EXECUTABLE}"
+  ARGS "-c 'import numpy; print numpy.get_include()'"
+  OUTPUT_VARIABLE NUMPY_INCLUDE_DIR
+  RETURN_VALUE NUMPY_NOT_FOUND)
+
+if( NUMPY_INCLUDE_DIR MATCHES "Traceback" )
+# Did not successfully include numpy
+set( NUMPY_INCLUDE_DIR )
+else()
+  set( NUMPY_INCLUDE_DIR ${NUMPY_INCLUDE_DIR} CACHE STRING "Numpy include path." )
+endif()
+
+include( FindPackageHandleStandardArgs )
+FIND_PACKAGE_HANDLE_STANDARD_ARGS( Numpy DEFAULT_MSG NUMPY_INCLUDE_DIR )
+
+mark_as_advanced( NUMPY_INCLUDE_DIR )
+
+if(NUMPY_FOUND)
+  set(NUMPY_INCLUDE_DIRS ${NUMPY_INCLUDE_DIR})
+else()
+  set(NUMPY_INCLUDE_DIRS)
+endif()