boost: fail on python and python3 options.

Close #30914.
hadoop 2.4.1

Closes #30910.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
jack: update download url.

Closes #30909.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
Use locals instead of repeatedly converting pathnames to strings
Call size on the path
Remove special case for now-deprecated GitHub URLs
libunistring: add upstream patch to fix the build on Xcode-only systems

Fixes #30917.
stanford-parser 3.4
stanford-parser: add 3.4 bottle.