diff options
Diffstat (limited to 'indra/cmake/Python.cmake')
| -rw-r--r-- | indra/cmake/Python.cmake | 51 |
1 files changed, 34 insertions, 17 deletions
diff --git a/indra/cmake/Python.cmake b/indra/cmake/Python.cmake index ed595f6966..dbf5033ce5 100644 --- a/indra/cmake/Python.cmake +++ b/indra/cmake/Python.cmake @@ -5,32 +5,49 @@ set(PYTHONINTERP_FOUND) if (WINDOWS) # On Windows, explicitly avoid Cygwin Python. - find_program(PYTHON_EXECUTABLE - NAMES python.exe + # if the user has their own version of Python installed, prefer that + foreach(hive HKEY_CURRENT_USER HKEY_LOCAL_MACHINE) + # prefer more recent Python versions to older ones, if multiple versions + # are installed + foreach(pyver 3.11 3.10 3.9 3.8 3.7) + list(APPEND regpaths "[${hive}\\SOFTWARE\\Python\\PythonCore\\${pyver}\\InstallPath]") + endforeach() + endforeach() + + # TODO: This logic has the disadvantage that if you have multiple versions + # of Python installed, the selected path won't necessarily be the newest - + # e.g. this GLOB will prefer Python310 to Python311. But since pymaybe is + # checked AFTER the registry entries, this will only surface as a problem if + # no installed Python appears in the registry. + file(GLOB pymaybe + "$ENV{PROGRAMFILES}/Python*" +## "$ENV{PROGRAMFILES(X86)}/Python*" + # The Windows environment variable is in fact as shown above, but CMake + # disallows querying an environment variable containing parentheses - + # thanks, Windows. Fudge by just appending " (x86)" to $PROGRAMFILES and + # hoping for the best. + "$ENV{PROGRAMFILES} (x86)/Python*" + "c:/Python*") + + find_program(python + NAMES python3.exe python.exe NO_DEFAULT_PATH # added so that cmake does not find cygwin python PATHS - [HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\3.7\\InstallPath] - [HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\3.8\\InstallPath] - [HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\3.9\\InstallPath] - [HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\3.10\\InstallPath] - [HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\3.11\\InstallPath] - [HKEY_CURRENT_USER\\SOFTWARE\\Python\\PythonCore\\3.7\\InstallPath] - [HKEY_CURRENT_USER\\SOFTWARE\\Python\\PythonCore\\3.8\\InstallPath] - [HKEY_CURRENT_USER\\SOFTWARE\\Python\\PythonCore\\3.9\\InstallPath] - [HKEY_CURRENT_USER\\SOFTWARE\\Python\\PythonCore\\3.10\\InstallPath] - [HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\3.11\\InstallPath] + ${regpaths} + ${pymaybe} ) include(FindPythonInterp) else() - find_program(PYTHON_EXECUTABLE python3) + find_program(python python3) - if (PYTHON_EXECUTABLE) + if (python) set(PYTHONINTERP_FOUND ON) - endif (PYTHON_EXECUTABLE) + endif (python) endif (WINDOWS) -if (NOT PYTHON_EXECUTABLE) +if (NOT python) message(FATAL_ERROR "No Python interpreter found") -endif (NOT PYTHON_EXECUTABLE) +endif (NOT python) +set(PYTHON_EXECUTABLE "${python}" CACHE FILEPATH "Python interpreter for builds") mark_as_advanced(PYTHON_EXECUTABLE) |