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authorBryan Newbold <bnewbold@robocracy.org>2017-02-20 00:05:23 -0800
committerBryan Newbold <bnewbold@robocracy.org>2017-02-20 00:05:23 -0800
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tree9b744b9dbf39e716e56daa620e2f3041968caf19 /README
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+This directory contains the distribution of scm4e6. Scm conforms to
+Revised^4 Report on the Algorithmic Language Scheme and the IEEE P1178
+specification. Scm runs under VMS, MS-DOS, OS2, MacOS, Amiga,
+Atari-ST, NOS/VE, Unix and similar systems.
+
+This file consists mainly of excerpts from "scm.info", the result of
+compiling (with makeinfo) "scm.texi" to `info' form. In case of
+conflicts with "scm.info", consult "scm.info".
+
+The author can be reached at <jaffer@ai.mit.edu>
+
+ MANIFEST
+
+ `README' is this file. It contains a MANIFEST, INSTALLATION
+ INSTRUCTIONS, hints for EDITING SCHEME CODE, and a TROUBLE
+ SHOOTING GUIDE.
+ `COPYING' details the LACK OF WARRANTY for scm and the conditions
+ for distributing scm.
+ `scm.1' is the unix style man page in nroff format.
+ `scm.doc' is the text man page generated from scm.1.
+ `QUICKREF' is a Quick Reference card for IEEE and R4RS.
+ `scm.texi' details feature support and enhancements to Scheme and
+ contains a SCHEME BIBLIOGRAPHY.
+ `ChangeLog' documents changes to the scm.
+
+ `r4rstest.scm' is Scheme code which tests conformance with Scheme
+ specifications.
+ `example.scm' is Scheme code from Revised^4 Report on the
+ Algorithmic Language Scheme which uses inexact numbers.
+ `pi.scm' is Scheme code for computing digits of pi [type (pi 100 5)]
+ which can be used to test the performance of scm against
+ compiled C code [cc -o pi pi.c;time pi 100 5].
+ `pi.c' is C code for computing digits of pi.
+ `bench.scm' is Scheme code for computing and recording speed of
+ "pi.scm".
+
+ `Makefile' is for building scmlit using the `make' program.
+ `build.scm' creates a database and program for compiling and linking
+ new SCM executables, libraries, and dlls.
+ `build.bat' invokes build.scm on MS-DOS platforms.
+ `setjump.mar' provides setjmp and longjmp which do not use $unwind
+ utility on VMS.
+ `setjump.s' provides setjmp and longjmp for the Cray YMP.
+
+ `Init.scm' is Scheme initialization code.
+ `Transcen.scm' has Scheme code for inexact builtin procedures.
+ `Link.scm' has Scheme code for compiling and dynamic linking.
+ `scmfig.h' is a C include file containing system dependent definitions.
+ `patchlvl.h is the patchlevel of this release.
+ `continue.c' code for continuations.
+ `continue.h' data types and external functions for continuations.
+ `setjump.h' is an include file dealing with continuations, stacks,
+ and memory allocation.
+ `scm.h' has the data type and external definitions of scm.
+
+ `scm.c' has the top level and interrupt code.
+ `findexec.c' has code to find the executable file.
+ `time.c' has functions dealing with time.
+ `repl.c' has error, read-eval-print loop, read, write and load code.
+ `scl.c' has the code for utility functions which are not part of the
+ IEEE Scheme spec or which are required for non-integer
+ arithmetic.
+ `eval.c' has the evaluator, apply, map, and foreach.
+ `sys.c' has the code for opening and closing files, storage
+ allocation and garbage collection.
+ `rope.c' has C interface functions.
+ `subr.c' has all the rest of functions.
+ `sc2.c' has code for procedures from R2RS and R3RS not in R4RS.
+ `dynl.c' has c code for dynamically loading object files.
+ `unif.c' has code for uniform vectors.
+ `rgx.c' has code for string regular expression match.
+ `crs.c' has code for interactive terminal control.
+ `split.scm' sets up CURSCM (SCM with crs.c) so that input, output,
+ and diagnostic output are each directed to separate windows.
+ `edline.c' Gnu readline input editing
+ (get ftp.sys.toronto.edu:/pub/rc/editline.shar).
+ `Iedline.scm' Gnu readline input editing.
+ `record.c' has code for proposed "Record" user definable datatypes.
+ `gsubr.c' has make_gsubr for arbitrary (< 11) arguments to C functions.
+
+ `ioext.c' has code for system calls in common between PC compilers and unix.
+ `posix.c' has code for posix library interface.
+ `unix.c' has code for non-posix system calls on unix systems.
+ `socket.c' has code for socket interface.
+
+ SLIB
+
+[SLIB] is a portable Scheme library meant to provide compatibility and
+utility functions for all standard Scheme implementations. Although
+SLIB is not *neccessary* to run SCM, I strongly suggest you obtain and
+install it. Bug reports about running SCM without SLIB have very low
+priority. SLIB is available from the same sites as SCM:
+
+ * 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/imp/slib2a6.tar.gz
+
+Unpack SLIB (`tar xzf slib2a6.tar.gz' or `unzip -ao slib2a6.zip') in an
+appropriate directory for your system; both `tar' and `unzip' will
+create the directory `slib'.
+
+Then create a file `require.scm' in the SCM "implementation-vicinity"
+(this is the same directory as where the file `Init.scm' is installed).
+`require.scm' should have the contents:
+
+ (define (library-vicinity) "/usr/local/lib/slib/")
+ (load (in-vicinity (library-vicinity) "require"))
+
+where the pathname string `/usr/local/lib/slib/' is to be replaced by
+the pathname into which you installed SLIB. Absolute pathnames are
+recommended here; if you use a relative pathname, SLIB can get confused
+when the working directory is changed (*note chmod: I/O-Extensions.).
+The way to specify a relative pathname is to append it to the
+implementation-vicinity, which is absolute:
+
+ (define library-vicinity
+ (let ((lv (string-append (implementation-vicinity) "../slib/")))
+ (lambda () lv)))
+ (load (in-vicinity (library-vicinity) "require"))
+
+Alternatively, you can set the (shell) environment variable
+`SCHEME_LIBRARY_PATH' to the pathname of the SLIB directory (*note
+SCHEME_LIBRARY_PATH: SCM Variables.). If set, the environment variable
+overrides `require.scm'. Again, absolute pathnames are recommended.
+
+ MAKING SCM
+
+ The SCM distribution has "Makefile" which contains rules for making
+"scmlit", a "bare-bones" version of SCM sufficient for running
+`build.scm'. `build.scm' is used to compile (or create scripts to
+compile) full featured versions.
+
+ Makefiles are not portable to the majority of platforms. If
+`Makefile' works for you, good; If not, I don't want to hear about it.
+If you need to compile SCM without build.scm, there are several ways to
+proceed:
+
+ * Use SCM on a different platform to run `build.scm' to create a
+ script to build SCM;
+
+ * Use another implementation of Scheme to run `build.scm' to create a
+ script to build SCM;
+
+ * Create your own script or `Makefile'.
+
+ * Buy a SCM executable from jaffer@ai.mit.edu. See the end of
+ `ANNOUNCE' in the distribution for details.
+
+ * Use scmconfig (From: bos@scrg.cs.tcd.ie):
+
+ Build and install scripts using GNU "autoconf" are available from
+ `scmconfig4e6.tar.gz' in the distribution directories. See
+ `README.unix' in `scmconfig4e6.tar.gz' for further instructions.
+
+ Making SCM with Think C 4.0 or 4.1
+
+Note: These instructions need to be uptdated for scm4e6. If Think C
+can be called using system(), then SCM can be built using build.scm.
+
+ Edit Scmfig.H to set desired options and IMPLINIT.
+ from Yasuaki Honda // honda@csl.SONY.co.jp:
+ Make a project and add source files repl.c, time.c, scm.c, subr.c,
+ sys.c, eval.c, scl.c, sc2.c, and unif.c to it.
+ Add libraries MacTraps, unix, ANSI to the project.
+ The project should be segmented in the following way:
+ ----------
+ repl.c
+ scm.c
+ subr.c
+ sys.c
+ sc2.c
+ unif.c
+ time.c
+ ----------
+ MacTraps
+ unix
+ ----------
+ ANSI
+ ----------
+ eval.c
+ ----------
+ scl.c
+ ----------
+ Choose 'Set Project Type' from 'Project' menu.
+ Choose Application from radio buttons.
+ Set Partition size to 600K. (The default 384K is not enough).
+
+ EDITING SCHEME CODE
+
+Gnu Emacs:
+ Editing of Scheme code is supported by emacs. Buffers holding
+ files ending in .scm are automatically put into scheme-mode.
+
+ If your Emacs can run a process in a buffer you can use the Emacs
+ command `M-x run-scheme' with SCM. However, the run-scheme
+ (`xscheme.el') which comes included with Gnu Emacs 18 will work
+ only with MIT Cscheme. If you are using Emacs 18, get the emacs
+ packages:
+
+ * ftp-swiss.ai.mit.edu:/pub/scheme-editor-packages/cmuscheme.el
+
+ * ftp-swiss.ai.mit.edu:/pub/scheme-editor-packages/comint.el
+
+ These files are already standard in Emacs 19.
+
+ If your Emacs can not run a process in a buffer, see "under other
+ systems" below.
+
+Epsilon (MS-DOS):
+ There is lisp (and scheme) mode available by use of the package
+ `LISP.E'. It offers several different indentation formats. With
+ this package, buffers holding files ending in `.L', `.LSP', `.S',
+ and `.SCM' (my modification) are automatically put into lisp-mode.
+
+ It is possible to run a process in a buffer under Epsilon. With
+ Epsilon 5.0 the command line options `-e512 -m0' are neccessary to
+ manage RAM properly. It has been reported that when compiling SCM
+ with Turbo C, you need to `#define NOSETBUF' for proper operation
+ in a process buffer with Epsilon 5.0.
+
+ One can also call out to an editor from SCM if RAM is at a
+ premium; See "under other systems" below.
+
+other systems:
+ Define the environment variable `EDITOR' to be the name of the
+ editing program you use. The SCM procedure `(ed arg1 ...)' will
+ invoke your editor and return to SCM when you exit the editor. The
+ following definition is convenient:
+
+ (define (e) (ed "work.scm") (load "work.scm"))
+
+ Typing `(e)' will invoke the editor with the file of interest.
+ After editing, the modified file will be loaded.
+
+ TROUBLE SHOOTING
+
+Reported problems and solutions are grouped under "Compiling",
+"Linking", "Running", and "Testing". If you don't find your problem
+listed here, you can send a bug report to <jaffer@ai.mit.edu>. The
+bug report should include:
+
+ * The version of SCM (printed when SCM is invoked with no arguments).
+
+ * The type of computer you are using.
+
+ * The name and version of your computer's operating system.
+
+ * The values of the environment variables SCM_INIT_PATH and
+ SCHEME_LIBRARY_PATH.
+
+ * The name and version of your C compiler.
+
+ * If you are using an executable from a distribution, the name,
+ vendor, and date of that distribution. In this case,
+ corresponding with the vendor is recommended.
+
+
+ Compiling:
+
+FILE ERROR or WARNING HOW TO FIX
+
+*.c include file not found Correct status of
+ STDC_HEADERS
+
+ fix #include statement
+ or add #define for
+ system type to scmfig.h
+
+scm.c assignment between incompatible types change SIGRETTYPE in scm.c
+
+time.c CLK_TCK redefined incompatablility
+ between <stdlib.h> and
+ <sys/types.h>. remove
+ STDC_HEADERS in scmfig.h
+
+ edit <sys/types.h> to
+ remove incompatability.
+
+sys.c statement not reached ignore
+ constant in conditional expression ignore
+
+sys.c: `???' undeclared, outside of functions #undef STDC_HEADERS
+ in scmfig.h
+
+scl.c syntax error define system type in
+ scmfig.h and scl.c (softtype)
+
+ Linking:
+
+ERROR or WARNING HOW TO FIX
+
+_sin etc. missing. uncomment LIBS in makefile
+
+ Running:
+
+PROBLEM HOW TO FIX
+
+Opening message and then machine Change memory model option
+crashes. to C compiler (or makefile).
+
+ Make sure sizet definition is
+ correct in scmfig.h
+
+ Reduce size of HEAP_SEG_SIZE
+ in setjump.h
+
+Input hangs #define NOSETBUF
+
+ERROR: heap: need larger initial Need to increase the initial
+ heap allocation using
+ -a<kbytes> or INIT_HEAP_SIZE.
+
+ERROR: Could not allocate ... Check sizet definition.
+
+ Get more memory.
+
+ Don't try to run as subproccess
+
+... in scmfig.h and recompile scm Do it and recompile files.
+
+ERROR: Init.scm not found Assign correct IMPLINIT in
+ makefile or scmfig.h or
+ define environment variable
+ SCM_INIT_PATH to be the full
+ pathname of Init.scm (see
+ INSTALLATION instructions).
+
+WARNING: require.scm not found define environment variable
+ SCHEME_LIBRARY_PATH to be the
+ full pathname of the scheme
+ library SLIB or change
+ library-vicinity in Init.scm
+ to point to library or remove.
+ See section SLIB above.
+
+ Make sure library-vicinity has
+ a trailing file separator
+ (like / or \).
+
+ Testing: (load "r4rstest.scm") or (load "pi.scm") (pi 100 5)
+
+Runs some and then machine crashes. See above under machine
+ crashes.
+
+Runs some and then ERROR: ... Remove optimization option
+(after a GC has happened) to C compiler and recompile.
+
+ #define SHORT_ALIGN in scmfig.h
+
+Some symbol names print incorrectly. Change memory model option
+ to C compiler (or makefile).
+
+ Check that HEAP_SEG_SIZE fits
+ within sizet.
+
+ Increase size of HEAP_SEG_SIZE
+ (or INIT_HEAP_SIZE if it is
+ smaller than HEAP_SEG_SIZE).
+
+ERROR: Rogue pointer in Heap. See above under machine
+ crashes.
+
+Newlines don't appear correctly in Check file mode (define OPEN_...
+output files. in Init.scm
+
+Spaces or control characters appear Check character defines in
+in symbol names scmfig.h
+
+Negative numbers turn positive. Check SRS in scmfig.h
+
+VMS: Couldn't unwind stack #define CHEAP_CONTIUATIONS
+VAX: botched longjmp in scmfig.h
+
+Sparc(SUN-4) heap is growing out of control:
+
+ You are experiencing a GC problem peculiar to the Sparc. The
+ problem is that SCM doesn't know how to clear register
+ windows. Every location which is not reused still gets marked
+ at GC time. This causes lots of stuff which should be
+ collected to not be. This will be a problem with any
+ "conservative" GC until we find what instruction will clear
+ the register windows. This problem is exacerbated by using
+ lots of call-with-current-continuations.