File:  [gforth] / gforth / INSTALL
Revision 1.21: download - view: text, annotated - select for diffs
Mon Sep 30 13:16:06 1996 UTC (26 years, 4 months ago) by anton
Branches: MAIN
CVS tags: HEAD
Documentation changes
Building in a dir different from the srcdir now works
a few bug fixes

    1: You need gcc version 2.0 or later to compile gforth.
    3: First, type
    5: ./configure
    7: (see Section Configuration Options below for details).
    9: After configuration, type
   11: make
   13: Now you can check whether your shiny new Forth system works. Say
   15: make test
   17: You can run some benchmarks with
   19: make bench
   21: and compare them with the results in Benchres and in the manual.
   23: If everything is all right, you may want to install gforth. Type
   25: make install
   27: You have to make an entry in the info directory file manually.
   29: For paper documentation, print (a Postscript file (300dpi
   30: fonts, i.e., it works, but does not produce best quality on better
   31: printers)), or say
   33: make gforth.dvi
   35: and print the resulting file gforth.dvi. You can also get the
   36: documentation in HTML format by typing
   38: make html
   40: If you prefer plain ASCII documentation, just concatenate the files
   41:* ('cat*' under Unix).
   44: 		Configuration Options
   46: You can build in a directory different from the source directory by
   47: changing to the build directory and invoking configure thus:
   49: $srcdir/configure
   51: where $srcdir is the source directory (Note that we tested this only
   52: for installation; i.e., if you want to hack the Gforth sources, you
   53: should probably build in the source directory).
   55: configure has the following useful parameters:
   56:   --prefix=PREFIX         install architecture-independent files in PREFIX
   57:                           [default: /usr/local]
   58:   --exec-prefix=PREFIX    install architecture-dependent files in PREFIX
   59:                           [default: same as prefix]
   60:   --enable-force-reg      Use explicit register declarations if they appear in
   61:                           the machine.h file. This can cause a good speedup,
   62:                           but also incorrect code with some gcc versions on
   63:                           some processors (default disabled).
   64:   --enable-direct-threaded      Force direct threading. This may not work on
   65:                                 some machines and may cause slowdown on others.
   66:                                 (default processor-dependent)
   67:   --enable-indirect-threaded    Force indirect threading. This can cause a
   68:                                 slowdown on some machines.
   69:                                 (default processor-dependent)
   70:   --with-debug     specifies option -g to compile with debug info (default)
   71:    --without-debug  omits the -g switch and creates smaller images on
   72:                     machines where strip has problems with gcc style
   73:                     debugging informations.
   74:   --help: tells you about other parameters.
   76: The file Benchres shows which combination of the -enable options we
   77: tried gave the best results for various machines.
   79: If you don't like the defaults for the installation directories, you
   80: should override them already during configure.  E.g., if you want to
   81: install in the /gnu hierarchy instead of in the default /usr/local
   82: hierarchy, say
   84: ./configure --prefix=/gnu
   86: Moreover, if your GCC is not called gcc (but, e.g., gcc-2.7.1), you
   87: should say so during configuration. E.g.:
   89: env CC=gcc-2.7.1 ./configure
   91: You can also pass additional options to gcc in this way, e.g., if you
   92: want to generate an a.out executable under Linux with gcc-2.7.0:
   94: env "CC=gcc -b i486-linuxaout -V 2.7.0" ./configure
   97: 		Preloading installation-specific code
   99: If you want to have some installation-specific files loaded when
  100: Gforth starts (e.g., an assembler for your processor), put commands
  101: for loading them into /usr/local/share/gforth/site-forth/site-init.fs
  102: (if the commands work for all architectures) or
  103: /usr/local/lib/gforth/site-forth/site-init.fs (for
  104: architecture-specific commands);
  105: /usr/local/lib/gforth/site-forth/site-init.fs takes precedence if both
  106: files are present (unless you change the search path). The file names
  107: given above are the defaults; if you have changed the prefix, you have
  108: to replace "/usr/local" in these names with your prefix.
  110: By default, the installation procedure creates an empty
  111: /usr/local/share/gforth/site-forth/site-init.fs if there is no such
  112: file.
  114: If you change the site-init.fs file, you should run "make install"
  115: again for the changes to take effect (Actually, the part of "make
  116: install" starting with "rm" is sufficient).
  119: 		Multiple Versions and Deinstallation
  121: Several versions of Gforth can be installed and used at the same
  122: time. Version `foo' can be invoked with `gforth-foo'. We recommend to
  123: keep the old version for some time after a new one has been installed.
  125: You can deinstall this version of Gforth with 'make uninstall' and
  126: version foo with 'make uninstall VERSION=foo'. 'make uninstall' also
  127: tells you how to uninstall Gforth completely.
  130: 			A Possible Problem
  132: You need to read this only if you see a message like
  134: ...
  135: The Gforth installer should look into the INSTALL file
  137: 1) "gforth: Cannot load nonrelocatable image (compiled for address $1234) at address $5678
  138: The Gforth installer should look into the INSTALL file"
  140: Gforth supports both relocatable and fixed-address images. If you load
  141: normal Forth code and save the image, you get a fixed-address
  142: image. Producing a relocatable image is more difficult.
  144: Therefore, Gforth has only a relocatable image of the kernel
  145: (, which is powerful enough to load the rest of
  146: Gforth. However, loading the rest takes a noticable amount of time. To
  147: avoid this delay (which would occur on every startup), the
  148: installation procedure produces an image fixed at an address
  149: determined at the Gforth run that produced the image. This
  150: fixed-address image is loaded by default. On most OSs this works,
  151: because the first chunk of memory is always allocated at the same
  152: address. If the address changes, you get the message above.
  154: An image address change can be caused by a change of the gforth
  155: executable, or by a change (upgrade) of the OS; in these cases you
  156: just have to rebuild and reinstall the fixed address image with
  158: rm; make; make install
  160: If you get such a message with a different address in place of the
  161: $5678 each time you try to start gforth, you cannot use fixed-address
  162: images on your OS. In this case, send us a message so that we start
  163: searching for a comfortable solution to this problem. In the
  164: meantime, start gforth with
  166: gforth -i startup.fs
  169: 2) "%s: Checksum of image ($13579b) does not match the executable ($2468a)
  170: The Gforth installer should look into the INSTALL file"
  172: A fixed-address image is not only fixed with respect to its base
  173: address, but also with respect to certain addresses in the gforth
  174: executable and the threading method. These things are encoded in a
  175: checksum.
  177: If the checksum of the executable and the checksum of the image are
  178: not equal, you get the message above. This can be caused, e.g., by
  179: trying to run an image produced for a direct threading system on an
  180: indirect threaded system.
  182: Chances are that you unintentionally tried to execute an image from
  183: the wrong directory. As a remedy, you can specify Gforth's search
  184: path with the "-p" command line option and with the GFORTHPATH
  185: environment variable.
  187: On the other hand, if you need to solve the problem by creating a new
  188: fixed-address image, you can use the steps described above.

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