From: Nick Desaulniers

Sent: 29 October 2021 00:28

...

quoted

quoted

2. Update the documentation to describe using the

   $ PATH=/usr/lib/llvm-#/bin:$PATH make LLVM=1 ...

   trick. This has been the preferred method for using different
   versions of LLVM but it has never been documented anywhere. This
   would allow us to keep the current build infrastructure while giving
   people clear instructions for how to handle different versions of
   clang. As Peter has noted, this would require people who are not
   familiar with building with LLVM to be constantly looking at the
   documentation to remember the command to invoke, whereas with
   LLVM=-#, it is easy to remember.

Right, this is no more than a crude hack and is super unfriendly. It
should never have been accepted.

Lots of tools modify PATH in your `.bashrc` or `.zshrc` etc.  I don't
see how that's any different, other than one off commands in which you
actually intend to use a specific version.

Nothing should be modifying the default $PATH, either by hacking
my .bashrc or any system default files that get run first.

It is as horrid and broken as setting LD_LIBRARY_PATH.
Even ldconfig is pretty much a broken idea.

	David

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