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+This message announces the availability of Scheme release scm4e6.
+
+New in scm4e6 are:
+
+	* bench.scm (benchmark): added.  computes and display statistics
+	on "pi.scm" benchmark.
+	* Makefile (benchlit bench): targets added.  Append stats to file
+	"BenchLog".
+	* scm.texi (Socket): added examples of chat servers and clients.
+	(Internet Addresses and Socket Names): enlarged from "Internet
+	Addresses".
+	* socket.c (l_connect): BUF0 was missing from mode bits set in
+	returned port.
+	* build.scm (build-params): Added compiler-options and
+	linker-options; added --batch-dialect and --script-name as aliases
+	for -h and -w.
+	* scmfig.h (HAVE_SELECT): Now defined for linux.
+	* sys.c (igc): fixed off-by-1 error for sizeof save_regs_gc_mark.
+	(gc_mark): fixed off-by-1 error for sizeof(CONTINUATION).  These
+	seem to fix a very obscure GC bug.
+	* Init.scm (exec-self): Added.
+	* repl.c (init_repl): DUMP sets RESTART to EXEC-SELF.
+	* repl.c (tryload): Made tail-recursive so that dump, quit, exit,
+ 	etc. will work as the last expression in a loading file.
+	(scm_execpath): Split out from scm_unexec.
+	* unexec.c: All Updated from emacs-19.34 -- no changes necessary.
+	* gmalloc.c: 
+	* pre-crt0.c:
+	* ecrt0.c:
+	* unexelf.c: fixes Linux (ELF) dump bug.
+	* build.scm (platform): linux renamed linux-aout.  linux-elf fixed
+ 	and renamed linux.
+	(C-libraries): X11R6 moved library files on RedHat Linux.  Linux
+ 	graphics library now has entry (doesn't default).
+	(compile-dll-c-files linux):
+	(make-dll-archive linux): Now converts from ".o" objects to ELF
+	".so" form and "links" the usual libraries.
+	* Link.scm (usr:lib x:lib): dynamic linking fixed for (linux ELF)
+	dlopen.  Libraries other than ".so" object not needed; eliminated
+	by usr:lib and x:lib returning #f.
+	* dynl.c (l_dyn_unlink): prints result of dlerror() on errors.
+	* eval.c (nconc2last): If CAUTIOUS is defined, checks that
+	APPLY's arglist and last element of arglist are LIST?s.
+	* sys.c (igc): symhash GC can now be disabled with
+	#define NO_SYM_GC.
+	* Init.scm (boot-tail): Added FSF --help and --version options.
+	Added --no-init-file as a synonym for -no-init-file.
+	* scm.texi (File-System Habitat): improved wording and added
+	examples.
+	* scm.texi (Top): Renamed sections.
+	* sys.c (mark_syms mark_sym_values): Split up mark_symhash() to
+	immunize against accidental pointers.
+	* repl.c (gc_ports_collected): added to instrument symbol GC.
+	* scm.texi (Debugging Scheme Code): Added section.
+	* eval.c (definedp): Changed from a memoizing macro to a `syntax'.
+
+ From maximum entropy <entropy@zippy.bernstein.com>:
+
+	* ioext.c, scmfig.h: support for SGI (tested with SGI IRIX 5.2/gcc)
+	* ioext.c (file_set_position): If a port is bidirectional
+	(e.g. a socket) it may be necessary on some systems to perform a
+	file positioning operation when switching between reading and
+	writing.  This is required by ANSI C (ISO/IEC 9899:1990
+	7.9.5.3).  Therefore, a	file-set-position on a bidirectional
+	port should not signal an error if fseek generates an
+	ESPIPE -- the fseek operation actually "succeeded" in that it
+	reset the I/O direction flag for the FILE.
+	* repl.c (input_waiting): R4RS requires that "char-ready?"
+	return "#t" at end-of-file.  The semantics for "ioctl(...,
+	FIONREAD, ...)" are such that it gives 0 on a socket that is
+	closed (on the other side of the connection).  If the
+	system has select(), use that instead to get the correct
+	behavior. 
+	* socket.c (l_listen): Treat sockets that have been "listened"
+	as input-ports.  This allows polling for new connections
+	(e.g. with "char-ready?") instead of blocking in
+	"socket:accept". 
+	* socket.c (l_accept): Fix type checking to agree with
+	previous patch.
+
+ From Radey Shouman  <shouman@zianet.com>
+
+	* eval.c (unmemocar): The code in unmemocar to deal with ILOCs was
+        never being executed.
+	* sys.c (intern): fixed (new) symhash GC bug.
+	* sys.c (igc): Added calls to mark_symhash() and sweep_symhash().
+	These GC unused symbols with a top-level value of UNDEFINED.
+	(mark_symhash): added.
+	(sweep_symhash): added.
+
+ From Eric Hanchrow  <erich@MICROSOFT.com>
+
+	* scm.c (l_sleep): Ported to Windows NT (_WIN32)
+	* ioext.c: Ported to Windows NT (_WIN32)
+ 
+				-=-=-
+
+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, Unicos, VMS, 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://ftp-swiss.ai.mit.edu/~jaffer/SCM.html
+
+SCM can be obtained via FTP (detailed instructions follow) from:
+ ftp-swiss.ai.mit.edu:pub/scm/scm4e6.tar.gz
+ prep.ai.mit.edu:pub/gnu/jacal/scm4e6.tar.gz
+ ftp.maths.tcd.ie:pub/bosullvn/jacal/scm4e6.tar.gz
+ ftp.cs.indiana.edu:/pub/scheme-repository/imp/scm4e6.tar.gz
+
+SLIB is a portable Scheme library which SCM uses:
+ ftp-swiss.ai.mit.edu:pub/scm/slib2a6.tar.gz
+ prep.ai.mit.edu:pub/gnu/jacal/slib2a6.tar.gz
+ ftp.maths.tcd.ie:pub/bosullvn/jacal/slib2a6.tar.gz
+ ftp.cs.indiana.edu:/pub/scheme-repository/code/lib/slib2a6.tar.gz
+
+JACAL is a symbolic math system written in Scheme:
+ ftp-swiss.ai.mit.edu:pub/scm/jacal1a5.tar.gz
+ prep.ai.mit.edu:pub/gnu/jacal/jacal1a5.tar.gz
+ ftp.maths.tcd.ie:pub/bosullvn/jacal/jacal1a5.tar.gz
+ ftp.cs.indiana.edu:/pub/scheme-repository/code/num/jacal1a5.tar.gz
+
+HOBBIT is a compiler for SCM code:
+ ftp-swiss.ai.mit.edu:pub/scm/hobbit4d.tar.gz
+ ftp.maths.tcd.ie:pub/bosullvn/jacal/hobbit4d.tar.gz
+ ftp.cs.indiana.edu:/pub/scheme-repository/imp/hobbit4d.tar.gz
+
+SCMCONFIG contains additional files for the SCM distribution to build
+SCM on Unix machines using GNU autoconf.
+ ftp-swiss.ai.mit.edu:pub/scm/scmconfig4e3.tar.gz
+ prep.ai.mit.edu:pub/gnu/jacal/scmconfig4e3.tar.gz
+ ftp.maths.tcd.ie:pub/bosullvn/jacal/scmconfig4e3.tar.gz
+ ftp.cs.indiana.edu:/pub/scheme-repository/imp/SCM-support/scmconfig4e3.tar.gz
+
+SLIB-PSD is a portable debugger for Scheme (requires emacs editor):
+ ftp-swiss.ai.mit.edu:pub/scm/slib-psd1-3.tar.gz
+ prep.ai.mit.edu:pub/gnu/jacal/slib-psd1-3.tar.gz
+ ftp.maths.tcd.ie:pub/bosullvn/jacal/slib-psd1-3.tar.gz
+ ftp.cs.indiana.edu:/pub/scheme-repository/utl/slib-psd1-3.tar.gz
+
+SLIB-SCHELOG is an embedding of Prolog in Scheme:
+ ftp-swiss.ai.mit.edu:pub/scm/slib-schelog.tar.gz
+ prep.ai.mit.edu:pub/gnu/jacal/slib-schelog.tar.gz
+ ftp.maths.tcd.ie:pub/bosullvn/jacal/slib-schelog.tar.gz
+ ftp.cs.indiana.edu:/pub/scheme-repository/utl/slib-schelog.tar.gz
+
+SMG-SCM is an SMG interface package which works with SCM on VMS.
+ ftp-swiss.ai.mit.edu:pub/scm/smg-scm2a1.zip
+ prep.ai.mit.edu:pub/gnu/jacal/smg-scm2a1.zip
+ ftp.cs.indiana.edu:/pub/scheme-repository/imp/SCM-support/smg-scm2a1.zip
+ ftp.maths.tcd.ie:pub/bosullvn/jacal/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:
+ ftp-swiss.ai.mit.edu:pub/scm/turtlegr.tar.gz
+ prep.ai.mit.edu:pub/gnu/jacal/turtlegr.tar.gz
+ ftp.maths.tcd.ie:pub/bosullvn/jacal/turtlegr.tar.gz
+ ftp.cs.indiana.edu:/pub/scheme-repository/imp/SCM-support/turtlegr.tar.gz
+
+XSCM is a X windows interface package which works with SCM:
+ ftp-swiss.ai.mit.edu:pub/scm/xscm-2.01.tar.gz
+ prep.ai.mit.edu:pub/gnu/jacal/xscm-2.01.tar.gz
+ ftp.cs.indiana.edu:/pub/scheme-repository/imp/SCM-support/xscm-2.01.tar.gz
+
+MacSCM is a Macintosh applications building package which works with
+SCM (similar to XSCM).
+ ftp-swiss.ai.mit.edu:pub/scm/macscm.tar.Z
+ ftp.maths.tcd.ie:pub/bosullvn/jacal/macscm.tar.Z
+ ftp.cs.indiana.edu:/pub/scheme-repository/imp/SCM-support/macscm.tar.gz
+
+WB is a disk based, sorted associative array (B-tree) library for SCM.
+Using WB, large databases can be created and managed from SCM.
+ ftp-swiss.ai.mit.edu:pub/scm/wb1a2.tar.gz
+ ftp.maths.tcd.ie:pub/bosullvn/jacal/wb1a2.tar.gz
+ ftp.cs.indiana.edu:/pub/scheme-repository/imp/SCM-support/wb1a2.tar.gz
+
+DLD is a C library package allowing SCM to dynamically load object
+files on Linux, VAX (Ultrix), Sun 3 (SunOS 3.4 and 4.0), SPARCstation
+(SunOS 4.0), Sequent Symmetry (Dynix), and Atari ST.
+
+ prep.ai.mit.edu:pub/gnu/dld-3.3.tar.gz
+				-=-=-
+
+  ftp ftp-swiss.ai.mit.edu (anonymous)
+  bin
+  cd pub/scm
+  get scm4e6.tar.gz
+  get slib2a6.tar.gz
+or
+  ftp prep.ai.mit.edu (anonymous)
+  bin
+  cd pub/gnu/jacal
+  get scm4e6.tar.gz
+  get slib2a6.tar.gz
+
+  `scm4e6.tar.gz' is a gzipped tar file of the C code distribution.
+  `slib2a6.tar.gz' is a gzipped tar file of a Scheme Library.
+
+Files in these directories with the ".gz" suffix are compressed with
+patent-free gzip (no relation to zip).  The program to uncompress them
+is available from
+ prep.ai.mit.edu:pub/gnu/gzip-1.2.4.tar
+ prep.ai.mit.edu:pub/gnu/gzip-1.2.4.shar
+ prep.ai.mit.edu:pub/gnu/gzip-1.2.4.msdos.exe
+
+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 scm4e6.tar.gz.
+
+I sell IBM PC floppy disk sets with the source files, documentation,
+and MS-DOS and i386 MS-DOS executables for $99.00.  To order, send
+e-mail to jaffer@ai.mit.edu.