* in your programs, rather than any of the "st[dl]_*.h" implementation files.
*/
-#ifndef _STREAMBUF
-#define _STREAMBUF 1
+#ifndef _CLIBXX_STREAMBUF
+#define _CLIBXX_STREAMBUF 1
#pragma GCC system_header
#include <bits/streambuf.tcc>
#endif
-#endif
+#endif /* _GLIBCXX_STREAMBUF */