USE_MMAP_ANON     797 gc/include/private/gcconfig.h #     define USE_MMAP_ANON
USE_MMAP_ANON    1420 gc/include/private/gcconfig.h #   define USE_MMAP_ANON
USE_MMAP_ANON    1944 gc/include/private/gcconfig.h #   define USE_MMAP_ANON