streambuf.cc (streambuf::~streambuf): Don't delete _lock for _IO_stdin/_IO_stdout/_IO_stderr.

        * streambuf.cc (streambuf::~streambuf): Don't delete _lock
        for _IO_stdin/_IO_stdout/_IO_stderr.

From-SVN: r16972

libio/ChangeLog

+Fri Dec  5 16:22:15 1997  H.J. Lu  (hjl@gnu.org)
+
+	* streambuf.cc (streambuf::~streambuf): Don't delete _lock
+	for _IO_stdin/_IO_stdout/_IO_stderr.
+
 Thu Nov 27 01:32:43 1997  Jeffrey A Law  (law@cygnus.com)
 
-	* Makefile.in (insatll): Change gxx_includedir to gcc_include_dir.
+	* Makefile.in (install): Change gxx_includedir to gcc_include_dir.
 	* config.shared (gxx_includedir): Remove default definition.
 	* config/linux.mt: Change gxx_includedir to gxx_include_dir.
 	* config/linuxaxp1.mt: Likewise.

libio/streambuf.cc

@@ -220,7 +220,8 @@ streambuf::~streambuf()
 {
   _IO_default_finish(this,0);
 #ifdef _IO_MTSAFE_IO
-  delete _lock;
+  if (this != _IO_stdin && this != _IO_stdout && this != _IO_stderr)
+    delete _lock;
 #endif
 }