Specify verbosity of installation script code generated by the install command (using the file(INSTALL) command). For paths that are newly installed or updated, installation may print lines like:
-- Installing: /some/destination/path
For paths that are already up to date, installation may print lines like:
-- Up-to-date: /some/destination/path
CMAKE_INSTALL_MESSAGE variable may be set to control which messages are printed:
Installing but not
Other values have undefined behavior and may not be diagnosed.
If this variable is not set, the default behavior is