(Only the first 10 of 12 ports in this commit are shown above. )
Move the list of llvm commands to seperate Makefile.COMMANDS to be used
by another port to come later.
Reorder Makefiles a bit to group similar things together.
Remove support for generating patch files from upstream SVN revisions.
The required interfaces have been disabled for some time and LLVM is in
the process if migrating to Git.
No functional changes (pkg-plist changes are simply ordering).