HAVE_BUILTIN___BUILTIN_CONSTANT_P    6 eval_error.c   #ifdef HAVE_BUILTIN___BUILTIN_CONSTANT_P
HAVE_BUILTIN___BUILTIN_CONSTANT_P  148 include/ruby/encoding.h #ifdef HAVE_BUILTIN___BUILTIN_CONSTANT_P
HAVE_BUILTIN___BUILTIN_CONSTANT_P  793 include/ruby/intern.h #ifdef HAVE_BUILTIN___BUILTIN_CONSTANT_P
HAVE_BUILTIN___BUILTIN_CONSTANT_P 1332 internal.h     #ifdef HAVE_BUILTIN___BUILTIN_CONSTANT_P
HAVE_BUILTIN___BUILTIN_CONSTANT_P 1344 internal.h     # ifdef HAVE_BUILTIN___BUILTIN_CONSTANT_P
HAVE_BUILTIN___BUILTIN_CONSTANT_P   20 symbol.h       #ifdef HAVE_BUILTIN___BUILTIN_CONSTANT_P