+#### Macros\r
+### MRUBY_RUBY_VERSION\r
+The version of Ruby used by mruby.\r
+### MRUBY_RUBY_ENGINE\r
+Ruby engine.\r
+### MRUBY_VERSION\r
+The mruby version.\r
+### MRUBY_RELEASE_MAJOR\r
+Major release version.\r
+### MRUBY_RELEASE_MINOR\r
+Minor release version.\r
+### MRUBY_RELEASE_NO\r
+Release number.\r
+### MRUBY_RELEASE_DATE\r
+Release date as a string.\r
+### MRUBY_RELEASE_YEAR\r
+Release year.\r
+### MRUBY_RELEASE_MONTH\r
+Release month.\r
+### MRUBY_RELEASE_DAY\r
+Release day.\r
+### MRUBY_BIRTH_YEAR\r
+The year mruby was first created.\r
+### MRUBY_AUTHOR\r
+Mruby's authors.\r
+### MRB_STRINGIZE0(expr)\r
+A passed in expression.\r
+### MRB_STRINGIZE(expr)\r
+Passes in an expression to MRB_STRINGIZE0.\r
+### MRUBY_DESCRIPTION\r
+mruby's version, and release date.\r
+### MRUBY_COPYRIGHT\r
+mruby's copyright information.\r