ICU-related warning from CMake

[kozross]

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Warning text is:

CMake Warning at CMakeLists.txt:105 (find_package):
  By not providing "FindICU.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "ICU", but
  CMake did not find one.

  Could not find a package configuration file provided by "ICU" with any of
  the following names:

    ICUConfig.cmake
    icu-config.cmake

  Add the installation prefix of "ICU" to CMAKE_PREFIX_PATH or set "ICU_DIR"
  to a directory containing one of the above files.  If "ICU" provides a
  separate development package or SDK, be sure it has been installed.

I don't know if it's benign, but it's probably not something you want showing up.

[kozross]

Just realized this is an issue with slop, not maim. Sorry about that - please feel free to close or relocate this issue.

[naelstrof]

It's a purposeful warning that means you're compiling without Unicode support for parameters. This matters just a tad due to slop allowing for specifying file names which could require Unicode characters.

I haven't actually tested the Unicode support of slop without ICU, or with it, it's just listed in cxxopt's CMakeLists.txt in order to enable unicode here: https://github.com/jarro2783/cxxopts/blob/76bd60dc17ca514f2febb49382b38d526d5502a5/CMakeLists.txt#L47