This message announces the availability of Scheme release scm5d6.

New in scm5d6:

From Aubrey Jaffer:

 + Tanel Tammet's Hobbit compiler is now integrated into the SCM
   distribution.

 + hobbit.scm modified for (symbol) GC changes in SCM.  Use of
   scm_gc_protect() instead of lists of protected objects means code
   produced by Hobbit is smaller and more readable.

 + Converted the hobbit documentation to texinfo format.
   http://swissnet.ai.mit.edu/~jaffer/hobbit_toc.html

From George Bronnikov:

 + Ported SCM to the PLAN9 operating-system.

From Martin Lafaix

 + scm.c (l_raise, l_sleep):
 + script.c (dld_find_executable):
 + scmmain.c, scmfig.h: Ported to OS/2, IBM VisualAge C++ v3.

Plus improvements and bug fixes too numerous to include here (see
scm/ChangeLog).

				-=-=-

Scm conforms to Revised^5 Report on the Algorithmic Language Scheme
and the IEEE P1178 specification.  Scm is written in C and runs under
Amiga, Atari-ST, MacOS, MS-DOS, OS/2, NOS/VE, Unicos, VMS, Windows,
Unix, and similar systems.  ASCII and EBCDIC are supported.

Documentation is included explaining the many Scheme Language
extensions in scm, the internal representations, and how to extend or
include SCM in other programs.  Documentation is online at:

	     http://swissnet.ai.mit.edu/~jaffer/SCM.html

SCM source is available from:
 http://swissnet.ai.mit.edu/ftpdir/scm/scm5d6.zip
 swissnet.ai.mit.edu:/pub/scm/scm5d6.zip
 http://swissnet.ai.mit.edu/ftpdir/scm/scm-5d6-1.src.rpm
 swissnet.ai.mit.edu:/pub/scm/scm-5d6-1.src.rpm
Also available as i386 binary RPM:
 http://swissnet.ai.mit.edu/ftpdir/scm/scm-5d6-1.i386.rpm
 swissnet.ai.mit.edu:/pub/scm/scm-5d6-1.i386.rpm

SLIB is a portable Scheme library which SCM uses:
 http://swissnet.ai.mit.edu/ftpdir/scm/slib2d4.zip
 swissnet.ai.mit.edu:/pub/scm/slib2d4.zip
Also available as RPM:
 http://swissnet.ai.mit.edu/ftpdir/scm/slib-2d4-1.noarch.rpm
 swissnet.ai.mit.edu:/pub/scm/slib-2d4-1.noarch.rpm

JACAL is a symbolic math system written in Scheme:
 http://swissnet.ai.mit.edu/ftpdir/scm/jacal1b2.zip
 swissnet.ai.mit.edu:/pub/scm/jacal1b2.zip

HOBBIT is a compiler for SCM code:
 http://swissnet.ai.mit.edu/ftpdir/scm/hobbit5x.tar.gz
 swissnet.ai.mit.edu:/pub/scm/hobbit5x.tar.gz

SLIB-PSD is a portable debugger for Scheme (requires emacs editor):
 http://swissnet.ai.mit.edu/ftpdir/scm/slib-psd1-3.tar.gz
 swissnet.ai.mit.edu:/pub/scm/slib-psd1-3.tar.gz

SMG-SCM is an SMG interface package which works with SCM on VMS.
 http://swissnet.ai.mit.edu/ftpdir/scm/smg-scm2a1.zip
 swissnet.ai.mit.edu:/pub/scm/smg-scm2a1.zip
A VMS version of Unzip is available by anonymous FTP from
 ftp.spc.edu:[ANONYMOUS.MACRO32]UNZIP.EXE.

TURTLSCM is a turtle graphics package which works with SCM on MS-DOS
or X11 machines:
 http://swissnet.ai.mit.edu/ftpdir/scm/turtlegr.tar.gz
 swissnet.ai.mit.edu:/pub/scm/turtlegr.tar.gz

XSCM is a X windows interface package which works with SCM:
 http://swissnet.ai.mit.edu/ftpdir/scm/xscm-2.01.tar.gz
 swissnet.ai.mit.edu:/pub/scm/xscm-2.01.tar.gz

MacSCM is a Macintosh applications building package which works with
SCM (similar to XSCM).
 http://swissnet.ai.mit.edu/ftpdir/scm/macscm.tar.Z
 swissnet.ai.mit.edu:/pub/scm/macscm.tar.Z

WB is a disk based, sorted associative array (B-tree) library for SCM.
Using WB, large databases can be created and managed from SCM.
 http://swissnet.ai.mit.edu/ftpdir/scm/wb1a7.zip
 swissnet.ai.mit.edu:/pub/scm/wb1a7.zip
 http://swissnet.ai.mit.edu/ftpdir/scm/wb-1a7-1.src.rpm
 swissnet.ai.mit.edu:/pub/scm/wb-1a7-1.src.rpm
Also available as i386 binary RPM:
 http://swissnet.ai.mit.edu/ftpdir/scm/wb-1a7-1.i386.rpm
 swissnet.ai.mit.edu:/pub/scm/wb-1a7-1.i386.rpm

SIMSYNCH is a digital logic simulation system written in SCM.
 http://swissnet.ai.mit.edu/ftpdir/scm/synch1b0.zip
 swissnet.ai.mit.edu:/pub/scm/synch1b0.zip

DLD is a C library package allowing SCM to dynamically load object
files on VAX (Ultrix), Sun 3 (SunOS 3.4 and 4.0), SPARCstation
(SunOS 4.0), Sequent Symmetry (Dynix), Atari ST, and a.out Linux
systems.
 ftp.gnu.org:pub/gnu/dld/dld-3.3.tar.gz

SCM.EXE (282k) is a SCM executable for DOS and MS-Windows.
Note: SCM.EXE still requires slib2d4 and scm5d6 above.
 http://swissnet.ai.mit.edu/ftpdir/scm/scm.exe
 swissnet.ai.mit.edu:/pub/scm/scm.exe

#! implements "#!" (POSIX) shell-scripts for MS-DOS batch files.
 http://swissnet.ai.mit.edu/ftpdir/scm/sharpbang.zip
 swissnet.ai.mit.edu:/pub/scm/sharpbang.zip
 http://swissnet.ai.mit.edu/ftpdir/scm/#!.zip
 swissnet.ai.mit.edu:/pub/scm/#!.zip

Programs for printing and viewing TexInfo documentation (which SCM
has) come with GNU Emacs or can be obtained via ftp from:
 ftp.gnu.org:pub/gnu/texinfo/texinfo-4.0.tar.gz