Enhance DLL search on Windows #1649
Merged
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Fixes the import errors for the compiled libraries and Python modules on Windows by adding better default search paths. If you build openage from source with the documented instructions, there shouldn't be any Python errors after this PR.
The problem in #1644 was that the dependent libraries were no longer found automatically since Python 3.8 and you had to use
--add-dll-search-path
to avoid errors. However, it's not always obvious how this argument should be used. Therefore, openage now sets sane defaults to search for:python.dll
openage.dll
nyan.dll
Furthermore, it fixes the errors in #1624 . These happened because the DLLs are only set per process, so subprocesses in
multiprocessing
were not aware about the DLL search paths. This problem is now solved by adding aDllDirectoryManager
object that can be passed around and then used to add/remove DLL search paths.