Fix the handle locking in stdio to use flockfile/funlockfile
internally when and where required. Macros in <stdio.h> are updated
to automatically call the underlying functions when the process is
threaded to obtain the necessary locking. A private mutex is added
to protect __sglue, the internal list of FILE handles, and another
to protect the one-time initialization. Some routines in libc that
use getc() change to use getc_unlocked() as they're either protected
by their own lock or aren't thread-safe routines anyway.

committing on behalf of and okay guenther@ now that we have install
media space available.

Back out previous commit, as it caused too much growth for the install
media to fit

Fix the handle locking in stdio to use flockfile/funlockfile
internally when and where required. Macros in <stdio.h> are updated
to automatically call the underlying functions when the process is
threaded to obtain the necessary locking. A private mutex is added
to protect __sglue, the internal list of FILE handles, and another
to protect the one-time initialization. Some routines in libc that
use getc() change to use getc_unlocked() as they're either protected
by their own lock or aren't thread-safe routines anyway.

ok kurt@, earlier version tested by sthen@ and jj@

zap remaining rcsid.

Kill old files that are no longer compiled.

okay theo

deregister + ansify, no change in object code. ok deraadt@ millert@

Remove the advertising clause in the UCB license which Berkeley
rescinded 22 July 1999. Proofed by myself and Theo.

a first pass at -Wall

If fread() returns EBADF, also set the error flag; tobez@plab.ku.dk

Fix RCS ids
Make sure everything uses {SYS,}LIBC_SCCS properly

((fp->_flags & (__SLBF|__SWR)) == __SLBF|__SWR)
becomes
((fp->_flags & (__SLBF|__SWR)) == (__SLBF|__SWR))
my guess at what proven@cygnus.com found

branches: 1.1.1;
Initial revision