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Outdated suggestions cannot be applied.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.
This PR fixes #2559 by explicitly specifying that Abseil should be built with C++11.
Additionally, it fixes an issue with building Apache Arrow: Arrow searches for system-installed protobuf headers when building, which means that it fails when the system protobuf headers are too old or not present. Since protobuf is already built by the script anyway, this PR makes Arrow use the already-built protobuf headers instead.