cmake HAVE_STRUCT_RICHACL examples

libarchive/libarchive CMakeLists.txt :2112 

CHECK_STRUCT_HAS_MEMBER("struct richacl" a_flags "sys/richacl.h"
    HAVE_STRUCT_RICHACL)

libarchive/libarchive CMakeLists.txt :2132 

ENDIF(HAVE_LIBRICHACL AND HAVE_STRUCT_RICHACL AND HAVE_STRUCT_RICHACE)