find_library(
  <VAR>
  name | NAMES name1 [name2 ...] [NAMES_PER_DIR]
  [HINTS [path | ENV var]...]
  [PATHS [path | ENV var]...]
  [REGISTRY_VIEW (64|32|64_32|32_64|HOST|TARGET|BOTH)]
  [PATH_SUFFIXES suffix1 [suffix2 ...]]
  [VALIDATOR function]
  [DOC "cache documentation string"]
  [NO_CACHE]
  [REQUIRED|OPTIONAL]
  [NO_DEFAULT_PATH]
  [NO_PACKAGE_ROOT_PATH]
  [NO_CMAKE_PATH]
  [NO_CMAKE_ENVIRONMENT_PATH]
  [NO_SYSTEM_ENVIRONMENT_PATH]
  [NO_CMAKE_SYSTEM_PATH]
  [NO_CMAKE_INSTALL_PREFIX]
  [CMAKE_FIND_ROOT_PATH_BOTH |
  ONLY_CMAKE_FIND_ROOT_PATH |
  NO_CMAKE_FIND_ROOT_PATH]
)

STEllAR-GROUP/hpx cmake/HPX_SetupGasnet.cmake :434

find_library(
                FOUND_LIB
                NAMES ${X} "lib${X}" "lib${X}.a"
                PATHS ${Y}
                HINTS ${Y} NO_CACHE
                NO_CMAKE_FIND_ROOT_PATH NO_DEFAULT_PATH
              )