RUBY_ENCODING_H    12 include/ruby/encoding.h #ifndef RUBY_ENCODING_H
RUBY_ENCODING_H  1318 internal.h     #ifdef RUBY_ENCODING_H
RUBY_ENCODING_H  1339 internal.h     #ifdef RUBY_ENCODING_H
RUBY_ENCODING_H  1360 internal.h     #ifdef RUBY_ENCODING_H
RUBY_ENCODING_H  1377 internal.h     #ifdef RUBY_ENCODING_H
RUBY_ENCODING_H  1582 internal.h     #ifdef RUBY_ENCODING_H