--- /dev/null	2021-05-22 06:52:04.572000000 +0300
+++ mjpegtools-2.1.0/mpeg2enc/bthread.h	2021-05-23 10:38:11.073808915 +0300
@@ -0,0 +1,31 @@
+/* BThread main header
+   Copyright (C) 2002 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+# define PTHREAD_CANCEL_ENABLE    	 0x00000010
+# define PTHREAD_CANCEL_DISABLE   	 0x00000000
+
+# define PTHREAD_CANCEL_ASYNCHRONOUS 0x00000020
+# define PTHREAD_CANCEL_DEFERRED     0x00000000
+
+#define PTHREAD_CANCELED ((void *) -1)
+
+int pthread_setcancelstate (int , int *);
+int pthread_setcanceltype (int , int *);
+void pthread_testcancel (void);
+int pthread_cancel (pthread_t t);