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make better use of cmake builtin funcitons for finding python library/header

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This commit is contained in:
Campbell Barton 2011-06-18 15:15:31 +00:00
parent 968b2a8afb
commit 5e59d0c8bb
1 changed files with 54 additions and 40 deletions
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94
build_files/cmake/FindPythonLibsUnix.cmake
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@ -5,21 +5,30 @@
# 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
set(_python_ABI_FLAGS
"m;mu;u; ")
string(REPLACE "." "" _PYTHON_VERSION_NO_DOTS ${PYTHON_VERSION})
set(_Python_PATHS
set(_python_SEARCH_DIRS
${PYTHON_ROOT_DIR}
"$ENV{HOME}/py${_PYTHON_VERSION_NO_DOTS}"
"/opt/py${_PYTHON_VERSION_NO_DOTS}"
"/usr"
@ -31,54 +40,59 @@ if(NOT DEFINED PYTHON_INCLUDE_DIRS OR
NOT DEFINED PYTHON_LIBPATH)
message(STATUS "Looking for include Python.h")
set(_Found_PYTHON_H OFF)
foreach(_CURRENT_PATH ${_Python_PATHS})
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 ${_CURRENT_ABI_FLAGS})
set(_Python_HEADER "${_CURRENT_PATH}/include/python${PYTHON_VERSION}${_CURRENT_ABI_FLAGS}/Python.h")
if(EXISTS ${_Python_HEADER})
message(STATUS "Checking for header: ${_Python_HEADER} - found")
set(_Found_PYTHON_H ON)
set(PYTHON ${_CURRENT_PATH})
set(PYTHON_ABI_FLAGS ${_CURRENT_ABI_FLAGS})
break()
else()
message(STATUS "Checking for header: ${_Python_HEADER}")
endif()
endforeach()
if(_Found_PYTHON_H)
break()
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(NOT _Found_PYTHON_H)
message(FATAL_ERROR "Python.h not found")
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 ${PYTHON_EXECUTABLE} CACHE STRING "")
mark_as_advanced(
PYTHON_INCLUDE_DIRS
PYTHON_INCLUDE_DIR
PYTHON_LIBRARY
)
else()
message(FATAL_ERROR "Python not found")
endif()
unset(_Found_PYTHON_H)
unset(_Python_HEADER)
unset(_CURRENT_ABI_FLAGS)
unset(_CURRENT_PATH)
set(PYTHON_INCLUDE_DIRS "${PYTHON}/include/python${PYTHON_VERSION}${PYTHON_ABI_FLAGS}" CACHE STRING "")
mark_as_advanced(PYTHON_INCLUDE_DIRS)
set(PYTHON_LIBRARY "python${PYTHON_VERSION}${PYTHON_ABI_FLAGS}" CACHE STRING "")
mark_as_advanced(PYTHON_LIBRARY)
set(PYTHON_LIBPATH ${PYTHON}/lib CACHE STRING "")
mark_as_advanced(PYTHON_LIBPATH)
# set(PYTHON_BINARY ${PYTHON_EXECUTABLE} CACHE STRING "")
endif()
unset(_Python_ABI_FLAGS)
unset(_Python_PATHS)
unset(_python_ABI_FLAGS)
unset(_python_SEARCH_DIRS)
#=============================================================================
# now the python versions are found