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| author | Rolf Eike Beer <eike@sf-mail.de> | 2012-01-17 18:25:10 +0100 |
|---|---|---|
| committer | Rolf Eike Beer <eike@sf-mail.de> | 2012-01-18 18:29:16 +0100 |
| commit | 0fe4d69b6f5cfa4c2cd7afc6c0a42eb03638b712 (patch) | |
| tree | 7a604180a3a698ee54815d28c482e7b95936f800 /Modules/FindPythonInterp.cmake | |
| parent | b2838626ddb451fbbffe0de5990d309696b28dfc (diff) | |
| download | cmake-0fe4d69b6f5cfa4c2cd7afc6c0a42eb03638b712.tar.gz | |
FindPythonInterp: make version selectable
This allows the developer to tell FindPythonInterp which Python version should
be searched for. This allows the right version to be chosen for a project
without user assistance if there are specific requirements. This is especially
useful as it is common to have major versions 2 and 3 installed in parallel,
which are partly incompatible.
Diffstat (limited to 'Modules/FindPythonInterp.cmake')
| -rw-r--r-- | Modules/FindPythonInterp.cmake | 41 |
1 files changed, 39 insertions, 2 deletions
diff --git a/Modules/FindPythonInterp.cmake b/Modules/FindPythonInterp.cmake index a10ec2371d..128dcd5fde 100644 --- a/Modules/FindPythonInterp.cmake +++ b/Modules/FindPythonInterp.cmake @@ -26,14 +26,51 @@ # (To distribute this file outside of CMake, substitute the full # License text for the above reference.) +unset(_Python_NAMES) + +set(_PYTHON1_VERSIONS 1.6 1.5) +set(_PYTHON2_VERSIONS 2.7 2.6 2.5 2.4 2.3 2.2 2.1 2.0) +set(_PYTHON3_VERSIONS 3.3 3.2 3.1 3.0) + +if(PythonInterp_FIND_VERSION) + if(PythonInterp_FIND_VERSION MATCHES "^[0-9]+\\.[0-9]+(\\.[0-9]+.*)?$") + string(REGEX REPLACE "^([0-9]+\\.[0-9]+).*" "\\1" _PYTHON_FIND_MAJ_MIN "${PythonInterp_FIND_VERSION}") + string(REGEX REPLACE "^([0-9]+).*" "\\1" _PYTHON_FIND_MAJ "${_PYTHON_FIND_MAJ_MIN}") + list(APPEND _Python_NAMES python${_PYTHON_FIND_MAJ_MIN} python${_PYTHON_FIND_MAJ}) + unset(_PYTHON_FIND_OTHER_VERSIONS) + if(NOT PythonInterp_FIND_VERSION_EXACT) + foreach(_PYTHON_V ${_PYTHON${_PYTHON_FIND_MAJ}_VERSIONS}) + if(NOT _PYTHON_V VERSION_LESS _PYTHON_FIND_MAJ_MIN) + list(APPEND _PYTHON_FIND_OTHER_VERSIONS ${_PYTHON_V}) + endif() + endforeach() + endif(NOT PythonInterp_FIND_VERSION_EXACT) + unset(_PYTHON_FIND_MAJ_MIN) + unset(_PYTHON_FIND_MAJ) + else(PythonInterp_FIND_VERSION MATCHES "^[0-9]+\\.[0-9]+(\\.[0-9]+.*)?$") + list(APPEND _Python_NAMES python${PythonInterp_FIND_VERSION}) + set(_PYTHON_FIND_OTHER_VERSIONS ${_PYTHON${PythonInterp_FIND_VERSION}_VERSIONS}) + endif(PythonInterp_FIND_VERSION MATCHES "^[0-9]+\\.[0-9]+(\\.[0-9]+.*)?$") +else(PythonInterp_FIND_VERSION) + set(_PYTHON_FIND_OTHER_VERSIONS ${_PYTHON3_VERSIONS} ${_PYTHON2_VERSIONS} ${_PYTHON1_VERSIONS}) +endif(PythonInterp_FIND_VERSION) + +list(APPEND _Python_NAMES python) + # Search for the current active python version first -find_program(PYTHON_EXECUTABLE NAMES python) +find_program(PYTHON_EXECUTABLE NAMES ${_Python_NAMES}) # Set up the versions we know about, in the order we will search. Always add # the user supplied additional versions to the front. set(_Python_VERSIONS ${Python_ADDITIONAL_VERSIONS} - 2.7 2.6 2.5 2.4 2.3 2.2 2.1 2.0 1.6 1.5) + ${_PYTHON_FIND_OTHER_VERSIONS} + ) + +unset(_PYTHON_FIND_OTHER_VERSIONS) +unset(_PYTHON1_VERSIONS) +unset(_PYTHON2_VERSIONS) +unset(_PYTHON3_VERSIONS) # Search for newest python version if python executable isn't found if(NOT PYTHON_EXECUTABLE) |