RUBY_PLATFORM     131 ext/dl/dl.c        rb_define_const(rb_mDL, "BUILD_RUBY_PLATFORM", rb_str_new2(RUBY_PLATFORM));
RUBY_PLATFORM     265 include/ruby/defines.h #ifndef RUBY_PLATFORM
RUBY_PLATFORM      21 version.c      const char ruby_platform[] = RUBY_PLATFORM;
RUBY_PLATFORM      50 version.h          "["RUBY_PLATFORM"]"