__builtin___clear_cache

Hi, 5bab1a57f572e29dfdffd6d1ce8e53a2772b18fd introduced __builtin___clear_cache. I think this is GCC specific. So, Storage.c cannot be compiled with clang: ---- rts/sm/Storage.c:1294:3: error: use of unknown builtin '__builtin___clear_cache' [-Wimplicit-function-declaration] __builtin___clear_cache(begin, end); ^ 1 error generated. ---- --Kazu