diff options
| -rw-r--r-- | Modules/FindPythonInterp.cmake | 51 |
1 files changed, 35 insertions, 16 deletions
diff --git a/Modules/FindPythonInterp.cmake b/Modules/FindPythonInterp.cmake index 930f675..a131c5f 100644 --- a/Modules/FindPythonInterp.cmake +++ b/Modules/FindPythonInterp.cmake @@ -17,6 +17,7 @@ #============================================================================= # Copyright 2005-2010 Kitware, Inc. # Copyright 2011 Bjoern Ricks <bjoern.ricks@gmail.com> +# Copyright 2012 Rolf Eike Beer <eike@sf-mail.de> # # Distributed under the OSI-approved BSD License (the "License"); # see accompanying file Copyright.txt for details. @@ -90,24 +91,42 @@ endif() # determine python version string if(PYTHON_EXECUTABLE) - execute_process(COMMAND "${PYTHON_EXECUTABLE}" --version - ERROR_VARIABLE _VERSION + execute_process(COMMAND "${PYTHON_EXECUTABLE}" -c + "import sys; sys.stdout.write(';'.join([str(x) for x in sys.version_info[:3]]))" + OUTPUT_VARIABLE _VERSION RESULT_VARIABLE _PYTHON_VERSION_RESULT - OUTPUT_QUIET - ERROR_STRIP_TRAILING_WHITESPACE) - if(_PYTHON_VERSION_RESULT) - execute_process(COMMAND "${PYTHON_EXECUTABLE}" -V - ERROR_VARIABLE _VERSION + ERROR_QUIET) + if(NOT _PYTHON_VERSION_RESULT) + string(REPLACE ";" "." PYTHON_VERSION_STRING "${_VERSION}") + list(GET _VERSION 0 PYTHON_VERSION_MAJOR) + list(GET _VERSION 1 PYTHON_VERSION_MINOR) + list(GET _VERSION 2 PYTHON_VERSION_PATCH) + if(PYTHON_VERSION_PATCH EQUAL 0) + # it's called "Python 2.7", not "2.7.0" + string(REGEX REPLACE "\\.0$" "" PYTHON_VERSION_STRING "${PYTHON_VERSION_STRING}") + endif() + else() + # sys.version predates sys.version_info, so use that + execute_process(COMMAND "${PYTHON_EXECUTABLE}" -c "import sys; sys.stdout.write(sys.version)" + OUTPUT_VARIABLE _VERSION RESULT_VARIABLE _PYTHON_VERSION_RESULT - OUTPUT_QUIET - ERROR_STRIP_TRAILING_WHITESPACE) - endif(_PYTHON_VERSION_RESULT) - if(NOT _PYTHON_VERSION_RESULT AND _VERSION MATCHES "^Python [0-9]+\\.[0-9]+.*") - string(REPLACE "Python " "" PYTHON_VERSION_STRING "${_VERSION}") - string(REGEX REPLACE "^([0-9]+)\\.[0-9]+.*" "\\1" PYTHON_VERSION_MAJOR "${PYTHON_VERSION_STRING}") - string(REGEX REPLACE "^[0-9]+\\.([0-9])+.*" "\\1" PYTHON_VERSION_MINOR "${PYTHON_VERSION_STRING}") - if(PYTHON_VERSION_STRING MATCHES "^[0-9]+\\.[0-9]+\\.[0-9]+.*") - string(REGEX REPLACE "^[0-9]+\\.[0-9]+\\.([0-9]+).*" "\\1" PYTHON_VERSION_PATCH "${PYTHON_VERSION_STRING}") + ERROR_QUIET) + if(NOT _PYTHON_VERSION_RESULT) + string(REGEX REPLACE " .*" "" PYTHON_VERSION_STRING "${_VERSION}") + string(REGEX REPLACE "^([0-9]+)\\.[0-9]+.*" "\\1" PYTHON_VERSION_MAJOR "${PYTHON_VERSION_STRING}") + string(REGEX REPLACE "^[0-9]+\\.([0-9])+.*" "\\1" PYTHON_VERSION_MINOR "${PYTHON_VERSION_STRING}") + if(PYTHON_VERSION_STRING MATCHES "^[0-9]+\\.[0-9]+\\.[0-9]+.*") + string(REGEX REPLACE "^[0-9]+\\.[0-9]+\\.([0-9]+).*" "\\1" PYTHON_VERSION_PATCH "${PYTHON_VERSION_STRING}") + else() + set(PYTHON_VERSION_PATCH "0") + endif() + else() + # sys.version was first documented for Python 1.5, so assume + # this is older. + set(PYTHON_VERSION_STRING "1.4") + set(PYTHON_VERSION_MAJOR "1") + set(PYTHON_VERSION_MAJOR "4") + set(PYTHON_VERSION_MAJOR "0") endif() endif() unset(_PYTHON_VERSION_RESULT) |