CMAKE_SYSTEM_PREFIX_PATH

;-list of directories specifying installation prefixes to be searched by the find_package(), find_program(), find_library(), find_file(), and find_path() commands. Each command will add appropriate subdirectories (like bin, lib, or include) as specified in its own documentation.

By default this contains the standard directories for the current system, the CMAKE_INSTALL_PREFIX, and the CMAKE_STAGING_PREFIX. The installation and staging prefixes may be excluded by setting the CMAKE_FIND_NO_INSTALL_PREFIX variable.

CMAKE_SYSTEM_PREFIX_PATH is not intended to be modified by the project; use CMAKE_PREFIX_PATH for this.

See also CMAKE_SYSTEM_INCLUDE_PATH, CMAKE_SYSTEM_LIBRARY_PATH, CMAKE_SYSTEM_PROGRAM_PATH, and CMAKE_SYSTEM_IGNORE_PATH.