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# - Find python libraries
#
# PYTHON_VERSION
# PYTHON_INCLUDE_DIRS
# PYTHON_LIBRARY
# PYTHON_LIBPATH
# PYTHON_LINKFLAGS
# PYTHON_ROOT_DIR, The base directory to search for Python.
# This can also be an environment variable.
#=============================================================================
# If PYTHON_ROOT_DIR was defined in the environment, use it.
IF(NOT PYTHON_ROOT_DIR AND NOT $ENV{PYTHON_ROOT_DIR} STREQUAL "")
SET(PYTHON_ROOT_DIR $ENV{PYTHON_ROOT_DIR})
ENDIF()
set(PYTHON_VERSION 3.2 CACHE STRING "")
mark_as_advanced(PYTHON_VERSION)
set(PYTHON_LINKFLAGS "-Xlinker -export-dynamic")
mark_as_advanced(PYTHON_LINKFLAGS)
set(_python_ABI_FLAGS
"m;mu;u; ")
string(REPLACE "." "" _PYTHON_VERSION_NO_DOTS ${PYTHON_VERSION})
set(_python_SEARCH_DIRS
${PYTHON_ROOT_DIR}
"$ENV{HOME}/py${_PYTHON_VERSION_NO_DOTS}"
"/opt/py${_PYTHON_VERSION_NO_DOTS}"
"/usr"
"/usr/local"
)
if(NOT DEFINED PYTHON_INCLUDE_DIRS OR
NOT DEFINED PYTHON_LIBRARY OR
NOT DEFINED PYTHON_LIBPATH)
message(STATUS "Looking for include Python.h")
foreach(_CURRENT_ABI_FLAGS ${_python_ABI_FLAGS})
if(CMAKE_BUILD_TYPE STREQUAL Debug)
set(_CURRENT_ABI_FLAGS "d${_CURRENT_ABI_FLAGS}")
endif()
string(REPLACE " " "" _CURRENT_ABI_FLAGS ${_CURRENT_ABI_FLAGS})
find_path(PYTHON_INCLUDE_DIR
NAMES Python.h
HINTS ${_python_SEARCH_DIRS}
PATH_SUFFIXES include/python${PYTHON_VERSION}${_CURRENT_ABI_FLAGS}
)
find_library(PYTHON_LIBRARY
NAMES "python${PYTHON_VERSION}${_CURRENT_ABI_FLAGS}"
HINTS ${_python_SEARCH_DIRS}
PATH_SUFFIXES lib64 lib
)
if((EXISTS ${PYTHON_LIBRARY}) AND (EXISTS ${PYTHON_INCLUDE_DIR}))
message(STATUS "Checking for header: ${PYTHON_INCLUDE_DIR} - found")
break()
else()
message(STATUS "Checking for header: ${PYTHON_INCLUDE_DIR}")
endif()
# ensure we dont find values from 2 different ABI versions
unset(PYTHON_INCLUDE_DIR CACHE)
unset(PYTHON_LIBRARY CACHE)
endforeach()
if((EXISTS ${PYTHON_LIBRARY}) AND (EXISTS ${PYTHON_INCLUDE_DIR}))
# Assign cache items
set(PYTHON_INCLUDE_DIRS ${PYTHON_INCLUDE_DIR} CACHE STRING "")
set(PYTHON_LIBRARY ${PYTHON_LIBRARY} CACHE STRING "")
# not used
# set(PYTHON_BINARY ${PYTHON_EXECUTABLE} CACHE STRING "")
mark_as_advanced(
PYTHON_INCLUDE_DIRS
PYTHON_INCLUDE_DIR
PYTHON_LIBRARY
)
else()
message(FATAL_ERROR "Python not found")
endif()
unset(_CURRENT_ABI_FLAGS)
unset(_CURRENT_PATH)
endif()
unset(_python_ABI_FLAGS)
unset(_python_SEARCH_DIRS)
#=============================================================================
# now the python versions are found
if(NOT EXISTS "${PYTHON_INCLUDE_DIRS}/Python.h")
message(FATAL_ERROR " Missing python header: ${PYTHON_INCLUDE_DIRS}/Python.h")
endif()
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