execute_process(

COMMAND python -c "from distutils.sysconfig import get_python_inc; print get_python_inc()"

OUTPUT_VARIABLE PYTHON_SYS_PATH

)

string(STRIP ${PYTHON_SYS_PATH} PYTHON_SYS_PATH)

FIND_PATH(PYTHON_INCLUDE_PATH Python.h

PATHS ${PYTHON_SYS_PATH}

NO_DEFAULT_PATH

NO_SYSTEM_ENVIRONMENT_PATH

)

execute_process(

COMMAND python -c "from distutils.sysconfig import get_config_var; print get_config_var('LIBDIR')"

OUTPUT_VARIABLE PYTHON_LIB_PATH

)

string(STRIP ${PYTHON_LIB_PATH} PYTHON_LIB_PATH)

execute_process(

COMMAND python -c "import sys; print '%s.%s' % sys.version_info[:2]"

OUTPUT_VARIABLE PYTHON_VERSION

)

string(STRIP ${PYTHON_VERSION} PYTHON_VERSION)

message(STATUS "Python version: ${PYTHON_VERSION}")

FIND_LIBRARY(PYTHON_LIBRARY NAMES python${PYTHON_VERSION}

PATHS ${PYTHON_LIB_PATH}

NO_DEFAULT_PATH

NO_SYSTEM_ENVIRONMENT_PATH

)

execute_process(

COMMAND python -c "from distutils.sysconfig import get_python_lib; print get_python_lib()"

OUTPUT_VARIABLE PYTHON_INSTALL_PATH_tmp

)

string(STRIP ${PYTHON_INSTALL_PATH_tmp} PYTHON_INSTALL_PATH_tmp)

set(PYTHON_INSTALL_PATH ${PYTHON_INSTALL_PATH_tmp}

CACHE BOOL "Python install path")

message(STATUS "Python install path: ${PYTHON_INSTALL_PATH}")

INCLUDE(FindPackageHandleStandardArgs)

FIND_PACKAGE_HANDLE_STANDARD_ARGS(PYTHON DEFAULT_MSG PYTHON_LIBRARY PYTHON_INCLUDE_PATH PYTHON_INSTALL_PATH)

# Links a Python extension module.

#

# The exact link flags are platform dependent and this macro makes it possible

# to write platform independent cmakefiles. All you have to do is to change

# this:

#

# add_library(simple_wrapper SHARED ${SRC}) # Linux only

# set_target_properties(simple_wrapper PROPERTIES PREFIX "")

#

# to this:

#

# add_python_library(simple_wrapper ${SRC}) # Platform independent

#

# Full example:

#

# set(SRC

# iso_c_utilities.f90

# pde_pointers.f90

# example1.f90

# example2.f90

# example_eigen.f90

# simple.f90

# simple_wrapper.c

# )

# add_python_library(simple_wrapper ${SRC})

macro(ADD_PYTHON_LIBRARY name)

# When linking Python extension modules, a special care must be taken about

# the link flags, which are platform dependent:

IF(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")

# on Mac, we need to use the "-bundle" gcc flag, which is what MODULE

# does:

add_library(${name} MODULE ${ARGN})

# and "-flat_namespace -undefined suppress" link flags, that we need

# to add by hand:

set_target_properties(${name} PROPERTIES

LINK_FLAGS "-flat_namespace -undefined suppress")

ELSE(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")

# on Linux, we need to use the "-shared" gcc flag, which is what SHARED

# does:

add_library(${name} SHARED ${ARGN})

ENDIF(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")

set_target_properties(${name} PROPERTIES PREFIX "")

IF(${CMAKE_SYSTEM_NAME} STREQUAL "CYGWIN")

target_link_libraries(${name} ${PYTHON_LIBRARY})

ENDIF(${CMAKE_SYSTEM_NAME} STREQUAL "CYGWIN")

endmacro(ADD_PYTHON_LIBRARY)