Thread-aware (not thread-safe!) libraries for XFree86-3.3
=========================================================

Wolfram Gloger (wmglo@dent.med.uni-muenchen.de)
June 9, 1997

If you want to perform X calls from multiple threads concurrently,
these libraries are _not_ for you.  In that case, please consider
switching to glibc-2.0 and using the XFree86-3.3 binaries for that
configuration.  However, if all you need is X11 libraries that can be
used with LinuxThreads, for applications that make X calls from one
thread at a time only, these libraries should work.  (They work fine
for me, but of course I cannot make any guarantees.)  They are also
completely backward compatible in my experience, i.e. all applications
linked against the standard versions of the libraries should work just
fine.

These are all the libraries installed by XFree86-3.3, compiled on a
i586-linux2.0.30 system, using the following tools:

o GNU binutils-2.8.1.0.1
o GNU gcc-2.7.2.1 (standard, no pentium optimization) with '-m486
  -malign-loops=2 -malign-jumps=2 -malign-functions=2 -O2'
o Linux libc-5.4.23

They have been compiled with the standard options, except putting
`-D_REENTRANT' next to `-D_POSIX_SOURCE' in linux.cf.

In all probability, what you would need to replace to run threaded
applications is only the libICE, libX11, libXaw and libXt files,
because those access the `errno' variable (which needs to be done
through the __errno_location function in Linux libc-5.x).

Disclaimer
==========

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Copyright information
=====================

Copyright (C) 1994, 1995, 1996 The XFree86 Project, Inc.  All Rights Reserved.

Permission is hereby granted, free of charge, to any person obtaining a copy of
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the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FIT-
NESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
XFREE86 PROJECT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Except as contained in this notice, the name of the XFree86 Project shall not
be used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from the XFree86 Project.

Copyright (C) 1996 X Consortium

Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FIT-
NESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE X
CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Except as contained in this notice, the name of the X Consortium shall not be
used in advertising or otherwise to promote the sale, use or other dealings in
this Software without prior written authorization from the X Consortium.