RUBY_EXEC_PREFIX   29 loadpath.c     #ifndef RUBY_EXEC_PREFIX
RUBY_EXEC_PREFIX   32 loadpath.c     #define RUBY_LIB_PREFIX RUBY_EXEC_PREFIX"/lib/ruby"
RUBY_EXEC_PREFIX   59 loadpath.c     const char ruby_exec_prefix[] = RUBY_EXEC_PREFIX;
RUBY_EXEC_PREFIX    5 verconf.h      #define RUBY_LIB_PREFIX 		RUBY_EXEC_PREFIX"/lib/ruby"