This message announces the availability of Scheme release scm4c0.

New in scm4c0 are: Positive numbers (other than infinity) no longer
have leading '+'.  GC Bug in dynamic-wind fixed.  Some portability
problems fixed.

Newly updated files (lowercase .z rather than uppercase .Z) in these
directories are compressed with patent-free gzip (no relation to zip).
Source for gzip is available from:
prep.ai.mit.edu:pub/gnu/gzip-1.0.7.shar
prep.ai.mit.edu:pub/gnu/gzip-1.0.7.tar

Scm conforms to Revised^4 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, VMS, Unix and similar
systems.  ASCII and EBCDIC are supported.

Documentation is included explaining the many Scheme Language
extensions in scm, the internal representation and how to extend or
include scm in other programs.

SCM can be obtained via FTP (detailed instructions follow) from:
altdorf.ai.mit.edu:archive/scm/scm4c0.tar.z
prep.ai.mit.edu:pub/gnu/jacal/scm4c0.tar.z
nexus.yorku.ca:pub/scheme/new/scm4c0.tar.z

SLIB is a portable Scheme library which SCM uses:
altdorf.ai.mit.edu:archive/scm/slib1d0.tar.Z
prep.ai.mit.edu:pub/gnu/jacal/slib1d0.tar.Z
nexus.yorku.ca:pub/scheme/new/slib1d0.tar.Z

JACAL is a symbolic math system written in Scheme:
altdorf.ai.mit.edu:archive/scm/jacal1a1.tar.Z
prep.ai.mit.edu:pub/gnu/jacal/jacal1a1.tar.Z
nexus.yorku.ca:pub/scheme/new/jacal1a1.tar.Z

HOBBIT is a compiler for SCM code:
altdorf.ai.mit.edu:archive/scm/hobbit1.tar.Z
prep.ai.mit.edu:pub/gnu/jacal/hobbit1.tar.Z
nexus.yorku.ca:pub/scheme/new/hobbit1.tar.Z

SMG-SCM is an SMG interface package which works with SCM on VMS.
altdorf.ai.mit.edu:archive/scm/smg-scm.com
prep.ai.mit.edu:pub/gnu/jacal/smg-scm.com

TURTLSCM is a turtle graphics package which works with SCM on MSDOS
or X11 machines:
altdorf.ai.mit.edu:archive/scm/turtlegr.tar.Z
prep.ai.mit.edu:pub/gnu/jacal/turtlegr.tar.Z

XSCM is a X windows interface package which works with SCM:
altdorf.ai.mit.edu:archive/scm/xscm1.05.tar.Z
prep.ai.mit.edu:pub/gnu/jacal/xscm1.05.tar.Z

  ftp altdorf.ai.mit.edu [18.43.0.246] (anonymous)
  bin
  cd archive/scm
  get scm4c0.tar.z
  get slib1d0.tar.Z
or
  ftp prep.ai.mit.edu (anonymous)
  bin
  cd pub/gnu/jacal
  get scm4c0.tar.z
  get slib1d0.tar.Z

`scm4c0.tar.z' is a gzipped tar file of the C code distribution.
`slib1d0.tar.Z' is a compressed tar file of a Scheme Library.

Remember to use binary mode when transferring the files.
Be sure to get and read the GNU General Public License (COPYING).
It is included in scm4c0.tar.z.

To receive an IBM PC floppy disk with the source files and MSDOS
and i386 MSDOS executables send $99.00 to:
   Aubrey Jaffer, 84 Pleasant St. Wakefield MA 01880, USA.

If you like scm you can support the developement and maintainence of
it by buying a disk from me or by sending money to the above address.