How can I setup LLVM 7 as default C / C++ compiler in Bionic

Environments Bionic
2

That depends on your build system. Most build systems in Linux accept the standard way, setting CC and CXX envvars.

In the case of LLVM 7, that’ll be:

addons:
  apt:
    packages:
      - clang-7

env:
  # may need to be under 'global:' or 'matrix:' if 'env:' is on top level,
  # see https://docs.travis-ci.com/user/environment-variables/
  # Or just 'export' them in the script
   - CC=clang-7
     CXX=clang++-7

Though the specific error you gave looks like a problem with your code at first glance: earlier in the log, there’s a warning referencing a #define that suggests that the name of the “module” that’s not found is something that you yourself pass.

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