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FindCARes.cmake：源码内容

							# -*- cmake -*-
# - Find c-ares
# Find the c-ares includes and library
# This module defines
#  CARES_INCLUDE_DIR, where to find ares.h, etc.
#  CARES_LIBRARIES, the libraries needed to use c-ares.
#  CARES_FOUND, If false, do not try to use c-ares.
# also defined, but not for general use are
#  CARES_LIBRARY, where to find the c-ares library.
FIND_PATH(CARES_INCLUDE_DIR ares.h
/usr/local/include
/usr/include
)
SET(CARES_NAMES ${CARES_NAMES} cares)
FIND_LIBRARY(CARES_LIBRARY
  NAMES ${CARES_NAMES}
  PATHS /usr/lib /usr/local/lib
  )
IF (CARES_LIBRARY AND CARES_INCLUDE_DIR)
    SET(CARES_LIBRARIES ${CARES_LIBRARY})
    SET(CARES_FOUND "YES")
ELSE (CARES_LIBRARY AND CARES_INCLUDE_DIR)
  SET(CARES_FOUND "NO")
ENDIF (CARES_LIBRARY AND CARES_INCLUDE_DIR)
IF (CARES_FOUND)
   IF (NOT CARES_FIND_QUIETLY)
      MESSAGE(STATUS "Found c-ares: ${CARES_LIBRARIES}")
   ENDIF (NOT CARES_FIND_QUIETLY)
ELSE (CARES_FOUND)
   IF (CARES_FIND_REQUIRED)
      MESSAGE(FATAL_ERROR "Could not find c-ares library")
   ENDIF (CARES_FIND_REQUIRED)
ENDIF (CARES_FOUND)
# Deprecated declarations.
SET (NATIVE_CARES_INCLUDE_PATH ${CARES_INCLUDE_DIR} )
GET_FILENAME_COMPONENT (NATIVE_CARES_LIB_PATH ${CARES_LIBRARY} PATH)
MARK_AS_ADVANCED(
  CARES_LIBRARY
  CARES_INCLUDE_DIR
  )

						