Fix build constraints for OSes other than Linux #53
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Outdated suggestions cannot be applied.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.
Description
After this change, this library cannot be used for FreeBSD or other OSes than Linux, macOS and Windows. Since the purpose of #48 is to avoid conflicts due to RPMDB updates, it is considered sufficient to lock only on Linux. Therefore, this PR does not lock on other operating systems and can be compiled for other platforms.