This message announces the availability of Scheme release scm4e0. [Note: scm4e0 is compatible with only slib2a0.] New in scm4e0 are: * scmfig.h: was config.h (too generic). * scm.c (main run_scm) repl.c (repl_driver init_init): now take initpath argument. IMPLINIT now used in scm.c * eval.c (ceval m_cont IM_CONT): @call-with-current-continuation special form for tail recursive call-with-current-continuation added. call_cc() routine removed. * eval.c (ceval m_apply IM_APPLY apply:nconc-to-last): @apply special form for tail-recursive apply added. ISYMs reactivated. * Init.scm ((read:sharp c port)): defined to handle #', #+, and #-. * repl.c (lreadr): Now calls out to Scheme function read:sharp when encountering unknown #. * sys.c (sym2vcell intern sysintern): now use internal strhash(). * scl.c sys.c (hash hashv hashq strhash()): added. * Link.scm (*catalog*): catalog entries for db (wb), turtle-graphics, curses, regex, rev2-procedures, and rev3-procedures added. * crs.c (nodelay): added. In NODELAY mode WGETCH returns eof-object when no input is ready. * scm.h (LENGTH): now does unsigned shift. * sys.c (gc_mark mark_locations): now externally callable. * scm.h (ARRAY_NDIM): #define ARRAY_NDIM NUMDIGS changed to #define ARRAY_NDIM(x) NUMDIGS(x) to correct problem on Next. * dynl.c MANUAL Init.scm (init_dynl): dynamic linking modified for modern linux. From: Shiro KAWAI * eval.c (ceval apply): under flag CAUTIOUS, checks for applying to non-lists added. From: rshouman@chpc.utexas.edu (Radey Shouman) * unif.c: 0d arrays added. Serial array mapping functions and ARRAY-SIMPLE? added. * sys.c eval.c setjump.h setjump.s (longjump setjump): full continuations now work on Cray YMP. From: ucs3028@aberdeen.ac.uk (Al Slater) * makefile.acorn repl.c (set_erase): Port to acorn archimedes. This uses Huw Rogers free unix function call library for the archimedes - this is very very widely available and should pose no problem to anyone trying to find it - its on every archimedes ftp site. From: hugh@cosc.canterbury.ac.nz (Hugh Emberson) * dynl.c Link.scm: Dynamic Linking with SunOS. From: fred@sce.carleton.ca (Fred J Kaudel) * unif.c (ra_matchp ramapc): patch to unif.c avoids two problems (K&R C does not allow initialization of "automatic" arrays or structures). This was not use in 4d2 or previously, and the following patch ensures that such initialization only occurs for ANSI C compilers (Note that K&R C compilers need to explicitly assign the values). Files in these directories 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 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 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/scm4e0.tar.gz prep.ai.mit.edu:pub/gnu/jacal/scm4e0.tar.gz nexus.yorku.ca:pub/scheme/new/scm4e0.tar.gz ftp.maths.tcd.ie:pub/bosullvn/jacal/scm4e0.tar.gz SLIB is a portable Scheme library which SCM uses: altdorf.ai.mit.edu:archive/scm/slib2a0.tar.gz prep.ai.mit.edu:pub/gnu/jacal/slib2a0.tar.gz nexus.yorku.ca:pub/scheme/new/slib2a0.tar.gz ftp.maths.tcd.ie:pub/bosullvn/jacal/slib2a0.tar.gz JACAL is a symbolic math system written in Scheme: altdorf.ai.mit.edu:archive/scm/jacal1a4.tar.Z prep.ai.mit.edu:pub/gnu/jacal/jacal1a4.tar.Z nexus.yorku.ca:pub/scheme/new/jacal1a4.tar.Z ftp.maths.tcd.ie:pub/bosullvn/jacal/jacal1a4.tar.Z HOBBIT is a compiler for SCM code: altdorf.ai.mit.edu:archive/scm/hobbit2.tar.gz nexus.yorku.ca:pub/scheme/new/hobbit2.tar.gz ftp.maths.tcd.ie:pub/bosullvn/jacal/hobbit2.tar.gz SCMCONFIG contains additional files for the SCM distribution to build SCM on Unix machines using GNU autoconf. altdorf.ai.mit.edu:archive/scm/scmconfig4e0.tar.gz prep.ai.mit.edu:pub/gnu/jacal/scmconfig4e0.tar.gz ftp.maths.tcd.ie:pub/bosullvn/jacal/scmconfig4e0.tar.gz SLIB-PSD is a portable debugger for Scheme (requires emacs editor): altdorf.ai.mit.edu:archive/scm/slib-psd1-2.tar.gz prep.ai.mit.edu:pub/gnu/jacal/slib-psd1-2.tar.gz nexus.yorku.ca:pub/scheme/new/slib-psd1-2.tar.gz ftp.maths.tcd.ie:pub/bosullvn/jacal/slib-psd1-2.tar.gz SMG-SCM is an SMG interface package which works with SCM on VMS. altdorf.ai.mit.edu:archive/scm/smg-scm2a1.zip prep.ai.mit.edu:pub/gnu/jacal/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 MSDOS or X11 machines: altdorf.ai.mit.edu:archive/scm/turtlegr.tar.gz prep.ai.mit.edu:pub/gnu/jacal/turtlegr.tar.gz ftp.maths.tcd.ie:pub/bosullvn/jacal/turtlegr.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. altdorf.ai.mit.edu:archive/scm/wb1a2.tar.gz nexus.yorku.ca:pub/scheme/new/wb1a2.tar.gz ftp.maths.tcd.ie:pub/bosullvn/jacal/wb1a2.tar.gz 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 [18.43.0.152] (anonymous) bin cd archive/scm get scm4e0.tar.gz get slib2a0.tar.gz or ftp prep.ai.mit.edu (anonymous) bin cd pub/gnu/jacal get scm4e0.tar.gz get slib2a0.tar.gz `scm4e0.tar.gz' is a gzipped tar file of the C code distribution. `slib2a0.tar.gz' is a gzipped 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 scm4e0.tar.gz. 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.