Laurent Carlier wrote:
Le lundi 3 juillet 2017, 13:53:12 CEST Andy Furniss a écrit :
Don't know if mesa needs changing or it's an llvm needs fixing issue,
but since llvm commit

commit 78fbc18aed8024139cb87c5db69ab5b43dc615d6
Author: Rafael Espindola <rafael.espind...@gmail.com>
Date:   Fri Jun 30 18:48:33 2017 +0000

      Completely disable git/svn version checking if not needed.

      Working with git on a branch I find it really annoying that committing
      a change causes ninja to think that stuff needs to be rebuilt.

      With this change at least nothing in llvm needs to be rebuild when
      something is committed.

      git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306858
91177308-0d34-0410-b5e6-96231b3b80d8

configuring mesa bails after failing to find llvm shared libs (and gives
outdated suggestion). Shared libs are installed.

checking for AMDGPU... yes
configure: error: Could not find llvm shared libraries:
          Please make sure you have built llvm with the --enable-shared
option
          and that your llvm libraries are installed in /usr/lib
          If you have installed your llvm libraries to a different
directory you
          can use the --with-llvm-prefix= configure flag to specify this
directory.
          NOTE: Mesa is attempting to use llvm shared libraries by default.
          If you do not want to build with llvm shared libraries and
instead want to
          use llvm static libraries then add --disable-llvm-shared-libs
to your configure
          invocation and rebuild.
_______________________________________________

It's a llvm change, you need to add -DLLVM_APPEND_VC_REV=OFF when you build
llvm, It should fix the issue.

Ahh, thanks for the info.

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