CMake Warning \(dev\) in CMakeLists.txt:
  Policy CMP0019 is not set: Do not re-expand variables in include and link
  information.  Run "cmake --help-policy CMP0019" for policy details.  Use
  the cmake_policy command to set the policy and suppress this warning.

  The following variable evaluations were encountered:

  Evaluated directory INCLUDE_DIRECTORIES

    /usr/include/\${VAR_INCLUDE};/usr/include/normal

  as

    /usr/include/VAL_INCLUDE;/usr/include/normal

  Evaluated target some_target INCLUDE_DIRECTORIES

    /usr/include/\${VAR_INCLUDE};/usr/include/normal

  as

    /usr/include/VAL_INCLUDE;/usr/include/normal

  Evaluated link directories

    /usr/lib/\${VAR_LINK_DIRS};/usr/lib/normal

  as

    /usr/lib/VAL_LINK_DIRS;/usr/lib/normal

  Evaluated link library

    \${VAR_LINK_LIBS}

  as

    VAL_LINK_LIBS

This warning is for project developers.  Use -Wno-dev to suppress it.$