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DRTVWR-558: Streamline and generalize Windows Python search.

meow-7.2.2
Nat Goodspeed 2022-08-23 17:21:31 -04:00
parent 7d996857cc
commit 94c571887b
1 changed files with 26 additions and 10 deletions
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36
indra/cmake/Python.cmake
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@ -5,20 +5,36 @@ set(PYTHONINTERP_FOUND)
if (WINDOWS)
# On Windows, explicitly avoid Cygwin Python.
# 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_CURRENT_USER\\SOFTWARE\\Python\\PythonCore\\3.11\\InstallPath]
${regpaths}
${pymaybe}
)
include(FindPythonInterp)
else()