+if(UNIX)
+ set(ARCH_TRIPLET )
+ FIND_PROGRAM(DPKG_ARCHITECTURE_EXECUTABLE dpkg-architecture)
+ if(DPKG_ARCHITECTURE_EXECUTABLE)
+ EXECUTE_PROCESS(COMMAND ${DPKG_ARCHITECTURE_EXECUTABLE} -qDEB_HOST_MULTIARCH
+ OUTPUT_VARIABLE ARCH_TRIPLET
+ ERROR_VARIABLE ERROR_ARCH_TRIPLET
+ OUTPUT_STRIP_TRAILING_WHITESPACE)
+ endif()
+endif()
+if(ARCH_TRIPLET)
+ set(SYSTEM_LIB_DIRS /usr/lib /usr/lib/${ARCH_TRIPLET} /usr/local/lib)
+else()
+ set(SYSTEM_LIB_DIRS /usr/lib /usr/local/lib)
+endif()
+