Travis Error: fatal error: llvm/Config/config.h: No such file or directory

[SimeonEhrig]

Travis throw the error fatal error: llvm/Config/config.h: No such file or directory at every build. For example see: https://travis-ci.org/github/root-project/cling/builds/699522924

The reason is, because cpt downloads an pre-compiled llvm version from https://releases.llvm.org/download.html#5.0.2. Unfortunately, this version doesn't contains the config.h. I think the reason for this is that config.h is build/system dependent and has no install target. A possible solution would be to use the llvm source code. But then it is possible that Travis gets a timeout.

[SimeonEhrig]

Commit 8b34a4c solves the problem.

@vgvassilev
On my local system, when I build from source, I have the same cling-test CodeGeneration/Lambda.C error.

[Axel-Naumann]

CodeGeneration/Lambda.C is fixed.