[PATCH]: Thread safe stdio with cygwin

[Thomas Pfaff <tpfaff at gmx dot net>]

This patch adds support for thread safe stdio for Cygwin.

Cygwin uses dynamic mutexes for locking, therefore it is
necessary to:

1. Initialize FILE pointers _lock properly.
2. Destroy the lock when it is no longer needed.

Regards,

Thomas

2004-01-12  Thomas Pfaff  <tpfaff@gmx.net>

	* libc/stdio/fclose.c: Include sys/lock.h.
	(fclose): Destroy lock when file is closed.
	* libc/stdio/findfp.c (__sfp): Initialize file pointers _lock
	member.
	* libc/stdio/freopen.c: Include sys/lock.h.
	(_freopen_r): Destroy lock when file is closed.
	* libc/stdio/vfprintf.c (__sbprintf): Initialize file pointers
	_lock member.

Attachment: newlib.patch
Description: Text document