RGENGC_WB_PROTECTED_BIGNUM 2982 bignum.c           NEWOBJ_OF(big, struct RBignum, klass, T_BIGNUM | (RGENGC_WB_PROTECTED_BIGNUM ? FL_WB_PROTECTED : 0));
RGENGC_WB_PROTECTED_BIGNUM  788 include/ruby/ruby.h #ifndef RGENGC_WB_PROTECTED_BIGNUM