What is xcb?
============
Do you ever wish you could cut two or more separate pieces of text
at once from a window?  Do you ever need to save the output from one
command for reuse in several subsequent tasks?  Do you ever find
yourself wanting some easy means of globally exporting data, e.g.
to a parent shell, to another xterm or application, or to another
machine or user?  If you answer yes to any of these questions, then
xcb is for you.

Xcb provides access to the cut buffers built into every X server.
It allows the buffers to be manipulated either via the command line,
or with the mouse in a point and click manner.  The buffers can be
used as holding pens to store and retrieve arbitrary data fragments,
so any number of different pieces of data can be saved and recalled later.
The program is designed primarily for use with textual data.


What is so good about this release?
===================================
Release 2.3 fixes a bug found in the XView code that prevented data
from being pasted from xcb to XView applications such as cmdtool.

The release also adds a Motif GUI, selectable as a compile-time option.
Now you can choose between the Athena or the Motif look and feel.


Yes, but has it been ported to WHIZ-IX 12.1A.00x, on SRS-80 27-bit CPUs?
========================================================================
Xcb has been ported to a wide variety of sites and systems.
In no particular order, the machines and operating systems known
to be running xcb include:-

	o  OSx (5.1a)  -  Pyramid MIS-2/02
	o  DC/OSx (1.0)  -  Pyramid MIServer-S 1/32 r3000
	o  AT&T SYSV (SVR3.2, SVR4)  -  i386, DG Aviion 5200
	o  HP-UX (lots of versions)  -  HP 9000s
	o  SunOS (4.1)  -  Sun3, Sun4, Solbourne Series5, SPARCstations
	o  SPARC/OS (1.1)
	o  Solaris (2.1)  -  SPARCstations
	o  Irix (4.0, 5.2)  -  SGI
	o  ULTRIX (4.2)  -  DECstations
	o  UNICOS (6.1)  -  Cray Y-MP
	o  ConvexOS (10.0.2)  -  Convex 3100
	o  DYNIX (V3.0.17.10)  -  Sequent Symmetry S81
	o  AIX (3.2)  -  RS6000
	o  RISC/os (4.52)  -  MIPS
	o  Domain/OS (10.4)  -  Apollo DN3000, 3500, 4500, 5500
	o  Linux (lots of versions)  -  i486
	o  VMS (5.5)
	o  DGUX (5.4.2)  -  AViiON mc88100
	o  Dynix/ptx (1.3)  -  i386


Xcb has been written to compile using both ANSI and non-ANSI compilers.
It is in use in X11 R3, R4, R5 and R6 environments.  The current version
uses either the Athena widgets (libXaw.a) or the Motif widgets (libXm.a),
plus the X Toolkit library (libXt.a).


Ok, where is it available?
==========================
Versions of xcb can be obtained.....

	o  from the comp.sources.x newsgroup, or any of its archive sites.
	o  by ftp, from ftp.x.org in the file contrib/utilities/xcb-2.3.tar.gz,
	o  by ftp, from any of the sites that mirror ftp.x.org
	   (In Australia, archie.au:X11/contrib/utilities/xcb-2.3.tar.gz)


So, it will compile, will it?
=============================
Yes!  The makefiles will, by default, build the Athena widgets version
of xcb.  If you prefer Motif, you should adjust the $(GUI) definition
to be -DMOTIF.  In addition, if you wish to cut and paste text between
xcb and XView applications, you should also add the -DXVIEW flag.

AT&T SVR4 sites need libnsl.a during linking.  If you are using
SVR4, and you don't like Imakefiles, you will need to add -lnsl to the
LIBS in Makefile.std.

HP-UX users may find that the Athena widgets are not installed on their
machine, even though the components are freely available as part of the
MIT X11 distribution.  There is an HP maintained, but unsupported, set
of X11R4 libraries and utilities (including the Athena widgets) for the
HP 9000 Series 300, 400, 700, and 800.  You can get the libraries,
include files, and config files (imake) via anonymous FTP from
hpcvaaz.cv.hp.com (15.255.72.15) - look for pub/MitX11R4/libs.s*00.tar.Z

AIX 3.2 users may find their Athena components are installed in a
non-standard place.  Check the directory /usr/lpp/X11/Xamples/lib/Xaw.

VMS and ULTRIX users may find their Athena components are installed in
a non-standard place too.  Check the directory /usr/include/mit for the
Athena include files.


And how do I set the thing up?
==============================
That is pretty easy too.  Once you have compiled the program,
you can start using it straight away - just put it in your favourite
bin directory.  The program contains a minimal set of fallback resources
so that it will behave itself even if there are no X resource specifications
for it to feed on.  To install the program, plus its application defaults
file, and the man page, simply type 'make install install.man', after
checking the target directories for the install in the Imakefile/Makefile.std.


Who is to blame?  Where do I send complaints?
=============================================
Blame me.  If you have any bug reports, porting problems, comments,
more comments, suggestions, patches, unwanted cash etc. please tell me.
I can be reached at the email address below.

Better still, if you really like xcb, send me a postcard!
(to P.O. Box 213, Belgrave, Victoria, Australia.  3160).

Enjoy.
Farrell McKay (Farrell.McKay@mpx.com.au)
Nov 1994