1SQUEAK(1)                   Squeak Smalltalk System                  SQUEAK(1)
2
3
4

NAME

6       squeak, inisqueak - Unix Squeak virtual machine and installer
7

SYNOPSIS

9       inisqueak
10       squeak [ option... ] [ image ] [ script [ argument... ] ]
11

DESCRIPTION

13       squeak  is  the  virtual  machine  for the Squeak Smalltalk system.  It
14       requires three files to operate correctly: an image file  containing  a
15       `snapshot'  of  a  live  Squeak  session, a changes file containing the
16       source code for modified methods in the image, and a copy of (or a link
17       to) a shared system sources file containing the source code for methods
18       that have not been modified since the last major version increment.
19
20       The image and changes files contain the state of a user's  Squeak  ses‐
21       sion, which is persistent between consecutive sessions.  Private copies
22       of these files are therefore normally required.  The  inisqueak  script
23       checks that the local Squeak installation appears sane, and then copies
24       the required files to the  current  working  directory.   If  inisqueak
25       encounters  no  problems,  it  will finish by running squeak to start a
26       Squeak session using the newly copied image and changes files.
27
28       inisqueak should be run once, when using Squeak for the first time,  to
29       create  a  new 'personal' Squeak session.  Afterwards, squeak should be
30       run each time that session is to be resumed.
31

INVOCATION

33       inisqueak has no options or arguments.  Simply 'cd'  to  the  directory
34       that  is  to contain the working copies of the image and changes files,
35       then run it.
36
37       squeak accepts various options (described below), and then an  optional
38       image  name  (which must not begin with a minus sign '-').  If an image
39       name is given on the command line then squeak tries to run that  image.
40       Otherwise  squeak  checks the environment variable SQUEAK_IMAGE and, if
41       it is set, uses its value as the name of the image to  run.   Otherwise
42       squeak  looks  for an image called 'squeak.image' in the current direc‐
43       tory.  If the image file does not exist then squeak  prints  a  message
44       indicating  which  image file it failed to find and then exits.  If the
45       extension '.image' is missing in the image argument or in the value  of
46       the SQUEAK_IMAGE variable, it will be appended automatically.
47
48       The  image argument can be followed by a script name.  This is the name
49       of a 'document' that should contain Smalltalk code to  be  executed  on
50       startup.  The document can be either the name of a file or a URL start‐
51       ing with 'http:'.  Any arguments that appear after the script name  are
52       ignored,  but  are  made available to the script from within Squeak via
53       the method getSystemAttribute:.  (See the section SCRIPTS below.)
54
55       If image is given as '--' then squeak immediately stops  argument  pro‐
56       cessing (and behaves as if image was not specified).  This is useful to
57       specify a script (possibly with script arguments) without specifying an
58       explicit image.
59

OPTIONS

61       Command  line  options  fall into two categories: 'common' options that
62       are recognised by the base VM and 'specific' options that are tied to a
63       particular  display  or  sound  driver.   Common options will always be
64       recognised by squeak, whereas a given specific option  will  be  recog‐
65       nised  only  after  squeak  has  loaded the driver to which it relates.
66       Refer to the '-vm' option below for more details.
67
68       The common options recognised by squeak are as follows:
69
70       -encoding enc
71              specifies the internal character encoding to be used by  Squeak.
72              This affects the translation that the VM performs when importing
73              text (from the keyboard or via 'paste' from an  external  selec‐
74              tion)  or  exporting  text  (pasting text from Squeak to another
75              application, or when  generating  filenames  containing  special
76              characters).   In  other  words,  it  affects the correspondence
77              between what Squeak displays on the screen and what it sends  to
78              (or  receives  from)  external  applications.  The correct value
79              depends on the way Squeak's internal fonts are encoded.  Current
80              images are delivered with traditional Macintosh 'New York' fonts
81              that use Mac Roman encoding, and so this is the default internal
82              encoding.   If  other fonts (from X11 or elsewhere) are imported
83              into the image and used as system fonts then  the  this  default
84              translation  will  give  incorrect results for diacritical marks
85              and special characters.  In such cases the -encoding option  can
86              be used to change the internal encoding, for example
87
88                  -encoding ISO-8859-15
89
90              (aka  Latin9)  which  would be appropriate for many of the fonts
91              designed for European languages.
92
93       -help  prints a short summary of the command-line syntax,  options  and
94              available drivers, then exits.
95
96       -memory size[mk]
97              requests  that  a  fixed heap of size bytes be allocated for the
98              Squeak image.  If the suffix `k' is given then the  argument  is
99              expressed  in  kilobytes.   If  the suffux `m' is given then the
100              argument is expressed in megabytes.  This option SHOULD  NOT  be
101              used, unless there is a good reason to do so, since it places an
102              arbitrary limit on Squeak's object memory size.
103
104       -mmap size[mk]
105              requests that a variable heap of at most  size  bytes  be  allo‐
106              cated.   (The  suffixes  are  as  described  for  the  '-memory'
107              option.)  squeak will initially allocate a heap  that  is  large
108              enough  to  hold the image, with a small amount of headroom.  If
109              at any time Squeak requires more memory for its image then addi‐
110              tional space will be allocated dynamically.  Likewise, when mem‐
111              ory is no longer needed it will deallocated and returned to  the
112              system.   The size argument places an upper limit on how big the
113              heap can grow in this fashion.  squeak uses a  dynamic  heap  by
114              default  with  the maximum size set to 75% of the available vir‐
115              tual memory or 1 gigabyte, whichever is smaller.
116
117       -noevents
118              disables the new (image 2.8 and later) event-driven input mecha‐
119              nism.  This option is only useful for testing backwards compati‐
120              bility with older images and should not be used.
121
122       -notimer
123              disables the use of the interval timer for keeping track of low-
124              resolution  time.   (If you are having problems with file, sound
125              or socket i/o reporting `interrupted system call'  then  setting
126              this flag might help.)
127
128       -pathenc enc
129              specifies  the  external character encoding to be used by Squeak
130              when accessing the filesystem (file  and  directory  pathnames).
131              The  correct  value depends on the local platform's characteris‐
132              tics.  If no encoding conversion should be performed  then  this
133              should  be  set  to  the same encoding as Squeak uses internally
134              (see the -encoding option).  Otherwise ISO-8859-15 (aka  Latin9)
135              might  make  sense  on a filesystem supporting 8-bit characters,
136              and UTF-8 for filesystems that use Unicode-based pathnames.  The
137              default  is  UTF-8 which is correct for Mac OS X and very recent
138              GNU/Linux distributions, and which  (in  an  ideal  world)  will
139              eventually be adopted by all Unix variants.
140
141       -plugins path
142              specifies  an alternative location for external plugins (collec‐
143              tions of named primitives) and drivers (for display and  sound).
144              The path argument contains a pattern in which any occurrences of
145              `%n' will be replaced by the name of the plugin or driver  being
146              loaded.   The  path  can  name  either a directory or the plugin
147              itself and can be absolute or  relative  (to  the  directory  in
148              which squeak was run).  If a plugin or driver cannot be found in
149              the location specified by path then the search continues in  the
150              default locations.
151
152       -textenc enc
153              specifies  the  external character encoding to be used by Squeak
154              when exchanging clipboard text  with  other  applications.   The
155              default  is  UTF-8  on  Mac OS X and ISO-8859-15 (aka Latin9) on
156              other Unix systems.  Note that X11 applications  requesting  the
157              selection converted to UTF8_STRING data will (correctly) receive
158              the clipboard text encoded as UTF-8, regardless of this setting.
159
160              Squeak recognises a subset of the encoding names defined by  the
161              IANA.   (If  you prefer to use the international currency symbol
162              rather than the Euro symbol in external text then you might want
163              to set this to ISO-8859-1, aka Latin1.)
164
165       -version
166              prints three or more lines of version information, as follows:
167
168                 ·   the  architecture  configured  for the virtual machine at
169                     compile time, the compilation `sequence number', the time
170                     and  date  of  compilation, and the name (and version, if
171                     known) of the compiler that was used to compile squeak;
172
173                 ·   the complete uname(1) information for the host  on  which
174                     the virtual machine was compiled;
175
176                 ·   the default installed location for plugins and drivers;
177
178              After printing the above, the virtual machine exits.
179
180       -vm driver
181              asks  squeak to load a sound/display driver.  For each supported
182              device there is a corresponding driver that squeak loads  during
183              initialisation.   Unless  told otherwise, squeak will figure out
184              sensible default drivers to load.  This choice can be overridden
185              using this option.  The driver argument is a list of one or more
186              'assignments' of the form
187
188                   class=device
189
190              separated by spaces or commas.  The supported  combinations  are
191              currently:
192
193                 display=X11
194                     to  display the Squeak window on a local or remote X Win‐
195                     dow System server.
196
197                 display=Quartz
198                     to display on the local Mac OS X desktop.
199
200                 display=none
201                     to disable the  display  (and  keyboard/mouse)  entirely.
202                     (This  driver  is  useful  primarily for running 'server'
203                     applications in Squeak.)
204
205                 sound=OSS
206                     provides sound input and output via the Open  Sound  Sys‐
207                     tem.   (If  you have a device called '/dev/dsp' then this
208                     is likely the one you want.)
209
210                 sound=MacOSX
211                     provides sound input/output via Core Audio on Mac OS X.
212
213                 sound=NAS
214                     provides sound i/o via the Network Audio System.
215
216                 sound=Sun
217                     provides sound on Sun Microsystems hardware.
218
219                 sound=none
220                     disables sound entirely.  squeak will not attempt to play
221                     or record sounds when this driver is loaded.
222
223              Note that only those drivers relevant to the local platform will
224              be available.  Attempting to load  an  unsupported  driver  will
225              cause squeak to exit with an error message.  A list of available
226              drivers is printed by  the  '-help'  option.   If  a  particular
227              driver  cannot load system libraries on which it depends then it
228              will neither be listed nor be available to load at runtime.
229
230              Note also that on Mac OS X both the X11 and Quartz display driv‐
231              ers  are  supported,  although the former will refuse to load if
232              the X11 client libraries are not installed on the local machine.
233              The  Quartz  driver  will happily load (and Squeak will run as a
234              fully-fledged application) even when squeak is invoked from  the
235              command  line.   Exercise caution when logged into Mac OS X from
236              another machine: forgetting to set DISPLAY before trying to  run
237              squeak on the remote display could cause embarrassement.
238
239       Options specific to the X11 display driver are as follows:
240
241       -browserWindow id
242              specifies  the  id  of the window that squeak should use for its
243              display.  This option is intended for use when Squeak is running
244              as a web browser plugin.
245
246       -display server
247              specifies that Squeak should connect to the given display server
248              instead of looking in  the  environment  variable  DISPLAY  (the
249              default behaviour) to find the name of the server to use.
250
251       -cmdmod N
252              tells  the VM to map modifier key N on the keyboard to the modi‐
253              fier code that the image expects for the Command key.
254
255       -optmod N
256              tells the VM to map modifier key N on the keyboard to the  modi‐
257              fier code that the image expects for the Option key.
258
259       -compositioninput
260              enables  support for an overlay window in which individual char‐
261              acters (e.g.,  Japanese  hiragana)  are  composed  before  being
262              interpreted  as a single character (e.g., Japanese kanji) by the
263              image.
264
265       -xicfont font
266              tells the VM to use the named font within the composition  over‐
267              lay window.
268
269       -fullscreen
270              causes the Squeak window to occupy as much of the screen area as
271              possible.  Implies '-notitle'.
272
273       -headless
274              disables the graphical display and mouse/keyboard  input.   This
275              mode of operation is useful primarily for servers.
276
277       -iconic
278              asks the window manager to iconify the Squeak window at startup.
279
280       -lazy  causes  Squeak to `snooze' whenever the main winodw is unmapped.
281              This can be used if Squeak appears to  be  using  consuming  CPU
282              time while idling (which should not normally be the case).  Note
283              that if this option is in effect,  when  the  Squeak  window  is
284              unmapped  squeak will not respond to any external stimuli (other
285              than to provide the X selection to requestors,  when  Squeak  is
286              the owner).
287
288       -mapdelbs
289              maps the Delete key onto Backspace.  Backspace deletes the char‐
290              acter to the left of the cursor and Delete normally deletes  the
291              character to the right of the cursor.  With this option, Deletes
292              will behave like Backspace.  The behaviour of Backspace  is  not
293              changed.
294
295       -noxdnd
296              disables support for the X drag-and-drop protocol.
297
298       -nointl
299              disables  the  handling of dead keys on international keyboards.
300              Without this option, dead key  handling  is  enabled  if  either
301              LC_ALL or LC_CTYPE is set in the environment.
302
303       -notitle
304              disables  the title bar on the Squeak window (if the window man‐
305              ager supports it).  This option is implied by '-fullscreen'.
306
307       -swapbtn
308              swaps the yellow and blue  buttons.    (Traditionally,  the  red
309              button  is  on  the  left,  yellow in the middle and blue on the
310              right.  The colourful names come from the Xerox  Alto  on  which
311              Smalltalk  was  first implemented.)  Squeak normally maps X but‐
312              tons 1, 2 and 3 to the red, yellow and  blue  buttons,  in  that
313              order.   With  this  option, it maps X buttons 1, 2 and 3 to the
314              red, blue and yellow buttons.)
315
316       -xasync
317              causes Squeak to use asynchronous display updates.  The  virtual
318              machine normally flushes and synchronises the display connection
319              at regular intervals.  Using this option  disables  synchronisa‐
320              tion,  which  will  be  performed only when the image explicitly
321              requests it.
322
323       -xshm  enables the use of the X Shared Memory extension on servers that
324              support  it.  This can dramatically improve display performance,
325              but works only when Squeak is running on the server.
326
327       Options specific to the FBDev display driver are as follows:
328
329       -fbdev device
330              Use  the  given  framebuffer  device  instead  of  the   default
331              '/dev/fb0'.
332
333       -kbmap mapfile
334              Load  the keyboard map from the given mapfile instead of reading
335              it from the running kernel.  Note that squeak cannot (currently)
336              read   compressed   or   'shorthand'  map  files  (as  found  in
337              /usr/share/keymaps or /lib/kbd/keymaps).  To generate  a  keymap
338              file  usable  by  squeak, execute the following program from the
339              console:
340
341                  dumpkeys -f -n --keys-only > key.map
342
343              If squeak encounters a problem while trying to load mapfile,  it
344              will  print  an error message and exit.  See keymaps(5) for more
345              information about the keymap file format.   The  programs  dump‐
346              keys(1),  loadkeys(1),  and showkey(1) can be used to modify the
347              keyboard map before creating a keymap file for squeak.
348
349       -msdev device
350              Use the given mouse device instead of the default.  The  default
351              is  to  try '/dev/psaux', '/dev/input/mice' and '/dev/adbmouse',
352              in that order, and to use the first  one  that  has  a  physical
353              device attached.
354
355       -msproto protocol
356              Use  the  given mouse protocol instead of the default.  The sup‐
357              ported protocols are 'ps2' and 'adb'.  The default is 'ps2'  for
358              mice  attached  to  '/dev/psaux' or '/dev/input/mice', and 'adb'
359              for mice attached to '/dev/adbmouse'.
360
361       -vtlock
362              Disallows VT switching, regardless of whether the request  comes
363              from the keyboard or from another program such as chvt(1).
364
365       -vtswitch
366              Enables  keyboard VT switching.  Note that this option is effec‐
367              tively disabled if the '-vtlock' option is also enabled.
368
369       Options specific to the OSS and MacOSX sound drivers are as follows:
370
371       -nomixer
372              disables the primitives that change mixer (sound) settings.   If
373              you  prefer  that Squeak leave these alone (they are, after all,
374              really the reponsibility of whichever  mixer  program  or  sound
375              control panel you use) then this option is for you.
376
377       Options specific to the ALSA sound driver are as follows:
378
379       -capture device
380              Uses the named input device for sound capture.
381
382       -playback device
383              Uses the named output device for sound playback.
384
385       Several  common  options are deprecated and are provided only for back‐
386       ward compatibility.  These options should  not  be  used  and  will  be
387       removed in a future release:
388
389       -display dpy
390              is equivalent to '-vm display=X11 -display dpy'.
391
392       -headless
393              is equivalent to '-vm display=X11 -headless'.
394
395       -nodisplay
396              is equivalent to '-vm display=none'.
397
398       -nosound
399              is equivalent to '-vm sound=none'.
400
401       -quartz
402              is equivalent to '-vm display=Quartz'.
403

ENVIRONMENT

405       Many of the options that can be set on the command line can also be set
406       from environment variables.
407
408       SQUEAK_ASYNC
409              if set in the environment then equivalent to the '-xasync' flag.
410              (The value is ignored.)
411
412       SQUEAK_CAPTURE
413              see '-capture'.
414
415       SQUEAK_COMPOSITIONINPUT
416              if  set in the environment then equivalent to the '-composition‐
417              input' flag.  (The value is ignored.)
418
419       SQUEAK_ENCODING
420              the name of the internal  character  encoding  used  by  Squeak.
421              Equivalent to giving the '-encoding' command-line option if set.
422
423       SQUEAK_FBDEV
424              the  name  of  the framebuffer device to use when running on the
425              console.  See the '-fbdev' option.
426
427       SQUEAK_FULLSCREEN
428              equivalent to '-fullscreen' if set.
429
430       SQUEAK_ICONIC
431              equivalent to the '-iconic' flag.
432
433       SQUEAK_IMAGE
434              the name of the image file to execute if no  image  argument  is
435              given on the command line.
436
437       SQUEAK_KBMAP
438              the  name of the keymap file to use when running on the console.
439              See the '-kbmap' option.
440
441       SQUEAK_LAZY
442              equivalent to the '-lazy' flag.
443
444       SQUEAK_MAPDELBS
445              equivalent to the '-mapdelbs' flag.
446
447       SQUEAK_MEMORY
448              the initial size of the heap, with optional 'k' or  'm'  suffix.
449              Equivalent to the '-memory size[km]' flag.
450
451       SQUEAK_MSDEV
452              the name of the mouse device to use when running on the console.
453              See the '-msdev' option.
454
455       SQUEAK_MSPROTO
456              the name of the mouse protocl to use when running  on  the  con‐
457              sole.  See the '-msproto' option.
458
459       SQUEAK_VTLOCK
460              if set then equivalent to specifying the '-vtlock' option on the
461              command line.
462
463       SQUEAK_VTSWITCH
464              if set then equivalent to specifying the '-vtswitch'  option  on
465              the command line.
466
467       SQUEAK_NOEVENTS
468              if set, equivalent to '-noevents'.
469
470       SQUEAK_NOINTL
471              equivalent to '-nointl' if set.
472
473       SQUEAK_NOMIXER
474              equivalent to '-nomixer' if set.
475
476       SQUEAK_NOTIMER
477              equivalent to '-notimer' if set.
478
479       SQUEAK_NOTITLE
480              if set, equivalent to '-notitle'.
481
482       SQUEAK_PATHENC
483              the  name  of  the character encoding used to construct file and
484              directory names.  Equivalent to giving the  '-pathenc'  command-
485              line option if set.
486
487       SQUEAK_PLAYBACK
488              see '-playback'.
489
490       SQUEAK_PLUGINS
491              see '-plugins'.
492
493       SQUEAK_SWAPBTN
494              equivalent to '-swapbtn' if set.
495
496       SQUEAK_TEXTENC
497              the  name  of  the  character  encoding  used to copy/paste text
498              from/to external applications.  Equivalent to giving the  '-tex‐
499              tenc' command-line option if set.
500
501       SQUEAK_VM
502              contains  the  names  of one or more drivers to be loaded during
503              initialisation.  See the '-vm' option for details.
504
505       SQUEAK_XICFONT
506              if set in the environment then it provides a  default  name  for
507              the composition overlay font; see the '-xicfont' flag.
508
509       SQUEAK_XSHM
510              equivalent to '-xshm'.
511
512       If  an  environment  variable and a command-line option conflict over a
513       particular value then normally the value  in  the  command  line  takes
514       precedence.   The exception to this rule is the '-vm' option.  Environ‐
515       ment variables are processed before command-line  arguments  and  '-vm'
516       cannnot be used to unload a driver that was loaded while processing the
517       contents of 'SQUEAK_VM'.
518
519       squeak also checks the environment for LC_ALL and LC_CTYPE.  If  either
520       of  these  variables  is  set  then support for international keyboards
521       (including dead keys for diacritical marks)  is  enabled.   To  prevent
522       this  support being enabled even when one or both of these variables is
523       set, use the '-nointl' option (or set  SQUEAK_NOINTL  in  the  environ‐
524       ment).   For  example,  to  start  squeak with support for dead keys on
525       Spanish keyboards, with Latin-1 encoding of external characters and the
526       default MacRoman internal font encoding, run squeak like this:
527
528              export LC_CTYPE=es_ES
529              export SQUEAK_TEXTENC=latin1
530              squeak
531

SCRIPTS

533       Squeak  can  load and execute a 'script' file containing Smalltalk code
534       at startup.  The name of the file should be given as the  script  argu‐
535       ment  to squeak.  For example, assuming that the image 'foo.image' con‐
536       tains an open Transcript window,  then  the  following  represents  the
537       'hello world' program for Squeak:
538
539              Transcript cr; show: 'Hello, world'.
540
541       If  this  script  is  in a file called 'hello.sq', then it could be run
542       like this:
543
544              squeak foo.image hello.sq
545
546       It is also possible to make 'self interpreting' scripts  by  adding  an
547       'interpreter  line'  to  the  start of the script.  The 'hello.sq' file
548       could be changed to
549
550              #!/usr/bin/squeak --
551              Transcript cr; show: 'Hello, world'.
552
553       and then made executable with
554
555              chmod +x hello.sq
556
557       and then invoked by running the script file directly:
558
559              SQUEAK_IMAGE="foo.image"
560              export SQUEAK_IMAGE
561              ./hello.sq
562
563       If any arguments are present after the script name  then  they  can  be
564       retrieved from within the script using the method
565
566              Smalltalk getSystemAttribute: n
567
568       where n is the index of the argument, starting at 3 for the first argu‐
569       ment.  (See the method comment for
570
571              SystemDictionary>>getSystemAttribute:
572
573       in the image for an explanation of the meanings of the indices.)
574
575       As an example of this, here is the 'echo' program written as  a  Squeak
576       script:
577
578              #!/usr/bin/squeak --
579              "Echo arguments to the Transcript."
580              | i a |
581              i := 2.
582              [(a := Smalltalk getSystemAttribute: (i := i + 1))
583                  notNil]
584                whileTrue: [Transcript space; show: a].
585
586       When run as
587
588              ./echo.sq one two three
589
590       this would print 'one two three' in the Transcript window.
591

DIAGNOSTICS

593       inisqueak
594              prints several informational messages while doing its stuff.  If
595              it encounters a problem it prints an appropriate message  before
596              bailing out.  The messages should be self-explanatory.
597
598       squeak normally does not print anything at all.  If it prints something
599              then there is a problem.  The messages should  be  self-explana‐
600              tory.
601

FILES

603       /usr/share/squeak/SqueakV3.sources
604              Shared  system sources file for the Squeak image.  There must be
605              a copy of (or link to) this file in the working  directory  when
606              running squeak.
607
608       /usr/share/squeak/Squeak*.image /usr/share/squeak/Squeak*.changes
609              Distributed  image  and  changes files holding a `shapshot' of a
610              live Squeak session.  (The contents of these files change during
611              a  session,  and  so private copies should always be made before
612              running squeak for the first time.  See inisqueak(1)).
613
614       ./SqueakV3.sources
615              A link to the system sources file.
616
617       ./name.image
618       ./name.changes
619              Private copies of image and changes files.
620
621       /usr/lib64/squeak/3.10-5/*.so
622       /usr/lib64/squeak/3.10-5/*.la
623              Virtual machine 'plugins' (containing primitives that are loaded
624              on demand) and drivers (for different types of display and sound
625              hardware).
626
627       /usr/bin/squeak
628       /usr/bin/inisqueak
629              The Squeak virtual machine and personal image installer script.
630
631       /usr/share/man/squeak.1
632              This manual page.
633
634       /usr/doc/squeak/*
635              Miscellaneous documentation.
636

NOTES

638       This manual page documents version 3.10-5 of Unix Squeak.  It  may  not
639       be appropriate for any other version.
640
641       The image and changes files containing a saved Squeak session are inti‐
642       mately related.  They should always be used together,  never  be  sepa‐
643       rated, and under no circumstances should an image be run with a changes
644       file that has been used with a different image.  Failure to  adhere  to
645       the  above  could cause the source code for the methods in the image to
646       become garbled and impossible to retrieve.
647
648       The Unix Squeak virtual machine fully supports OpenGL in both  the  X11
649       and  Quartz  display  drivers.   Open  Croquet  will run just fine with
650       either of these drivers (and many Mac OS X users  will  even  have  the
651       choice of which driver to use :).
652

BUGS

654       If a 'binary' option is enabled by an environment variable, there is no
655       way to disable it on the command line.
656
657       Similarly, drivers specified in the SQUEAK_VM environment variable can‐
658       not be overridden by passing options on the command line.
659
660       squeak  should  never crash.  In the unlikely event that it does crash,
661       or prints any kind of message that does not  appear  to  be  caused  by
662       incorrect arguments or illegal operations from within a Squeak program,
663       please send a bug report to:  <ian.piumarta@squeakland.org>.   (Do  not
664       send  bug  reports  to  the  general-purpose 'squeak-dev' mailing list.
665       They will not be read.  If you feel you must post a  bug  report  to  a
666       mailing  list,  send it to the Squeak 'vm-dev' mailing list in addition
667       to the above email address.)
668

AUTHOR

670       This manual page was written by Ian Piumarta.
671

SEE ALSO

673       Dan Ingalls, Ted Kaehler, John Maloney, Scott  Wallace  and  Alan  Kay,
674       Back  to the Future: The Story of Squeak, A Practical Smalltalk Written
675       in Itself.  Proc. OOPSLA'97.
676
677       The official Squeak home page:
678              http://squeak.org
679
680       The general-purpose 'squeak-dev' mailing list (not for  VM-related  bug
681       reports):
682              http://lists.squeakfoundation.org/listinfo/squeak-dev
683
684       The Squeak 'vm-dev' mailing list (amongst others):
685              http://discuss.squeakfoundation.org/
686
687       The latest source and binary distributions of Unix Squeak:
688              http://squeak.hpl.hp.com/~piumarta/squeak
689
690
691
692Squeak Smalltalk System                                              SQUEAK(1)
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