Bugzilla

I guess.  I think that's the build system's fault? (unless there's a system setting somewhere that I should be setting to tell us what version of clang to use?)

Two additional facts:
 - my /usr/lib directory also has a "llvm-7" folder in it, alongside llvm-4.0.  So I have multiple ubuntu-provided versions of libclang, but we seem to be using the older one.

 - My objdir config.status file *also* has this line:
>    'MOZ_CLANG_PATH': '/usr/lib/llvm-4.0/bin/clang',
...regardless of what version I'm using for my /usr/bin/clang symlink.  I don't know if we use that MOZ_CLANG_PATH binary anywhere, though.

I guess.  I think that's the build system's fault? (unless there's a system setting somewhere that I should be setting to tell us what version of libclang to use?)

Two additional facts:
 - my /usr/lib directory also has a "llvm-7" folder in it, alongside llvm-4.0.  So I have multiple ubuntu-provided versions of libclang, but we seem to be using the older one.

 - My objdir config.status file *also* has this line:
>    'MOZ_CLANG_PATH': '/usr/lib/llvm-4.0/bin/clang',
...regardless of what version I'm using for my /usr/bin/clang symlink.  I don't know if we use that MOZ_CLANG_PATH binary anywhere, though.