1 files changed, 52 insertions, 0 deletions
diff --git a/trunk/version.c b/trunk/version.c
new file mode 100644
index 0000000000..53edf02574
--- /dev/null
+++ b/trunk/version.c
@@ -0,0 +1,52 @@
+/**********************************************************************
+
+  version.c -
+
+  $Author$
+  created at: Thu Sep 30 20:08:01 JST 1993
+
+  Copyright (C) 1993-2007 Yukihiro Matsumoto
+
+**********************************************************************/
+
+#include "ruby/ruby.h"
+#include "version.h"
+#include <stdio.h>
+
+#define PRINT(type) puts(ruby_##type)
+#define MKSTR(type) rb_obj_freeze(rb_usascii_str_new(ruby_##type, sizeof(ruby_##type)-1))
+
+const char ruby_version[] = RUBY_VERSION;
+const char ruby_release_date[] = RUBY_RELEASE_DATE;
+const char ruby_platform[] = RUBY_PLATFORM;
+const int ruby_patchlevel = RUBY_PATCHLEVEL;
+const char ruby_description[] = RUBY_DESCRIPTION;
+const char ruby_copyright[] = RUBY_COPYRIGHT;
+const char ruby_engine[] = "ruby";
+
+void
+Init_version(void)
+{
+    rb_define_global_const("RUBY_VERSION", MKSTR(version));
+    rb_define_global_const("RUBY_RELEASE_DATE", MKSTR(release_date));
+    rb_define_global_const("RUBY_PLATFORM", MKSTR(platform));
+    rb_define_global_const("RUBY_PATCHLEVEL", INT2FIX(RUBY_PATCHLEVEL));
+    rb_define_global_const("RUBY_REVISION", INT2FIX(RUBY_REVISION));
+    rb_define_global_const("RUBY_DESCRIPTION", MKSTR(description));
+    rb_define_global_const("RUBY_COPYRIGHT", MKSTR(copyright));
+    rb_define_global_const("RUBY_ENGINE", MKSTR(engine));
+}
+
+void
+ruby_show_version(void)
+{
+    PRINT(description);
+    fflush(stdout);
+}
+
+void
+ruby_show_copyright(void)
+{
+    PRINT(copyright);
+    exit(0);
+}