Annotation of gforth/INSTALL, revision 1.23
1.7 anton 1: You need gcc version 2.0 or later to compile gforth.
1.1 anton 2:
1.5 anton 3: First, type
1.3 anton 4:
1.8 anton 5: ./configure
1.1 anton 6:
1.21 anton 7: (see Section Configuration Options below for details).
8:
9: After configuration, type
10:
11: make
12:
13: Now you can check whether your shiny new Forth system works. Say
14:
15: make test
16:
17: You can run some benchmarks with
18:
19: make bench
20:
21: and compare them with the results in Benchres and in the manual.
22:
23: If everything is all right, you may want to install gforth. Type
24:
25: make install
26:
27: You have to make an entry in the info directory file manually.
28:
29: For paper documentation, print gforth.ps (a Postscript file (300dpi
30: fonts, i.e., it works, but does not produce best quality on better
31: printers)), or say
32:
33: make gforth.dvi
34:
35: and print the resulting file gforth.dvi. You can also get the
36: documentation in HTML format by typing
37:
38: make html
39:
40: If you prefer plain ASCII documentation, just concatenate the files
41: gforth.info-* ('cat gforth.info-*' under Unix).
42:
43:
44: Configuration Options
45:
1.23 ! anton 46: If you use GNU make, you can build in a directory different from the
! 47: source directory by changing to the build directory and invoking
! 48: configure thus:
1.21 anton 49:
50: $srcdir/configure
51:
1.23 ! anton 52: where $srcdir is the source directory. (Note that we tested this only
1.21 anton 53: for installation; i.e., if you want to hack the Gforth sources, you
54: should probably build in the source directory).
55:
1.4 pazsan 56: configure has the following useful parameters:
1.9 anton 57: --prefix=PREFIX install architecture-independent files in PREFIX
58: [default: /usr/local]
59: --exec-prefix=PREFIX install architecture-dependent files in PREFIX
60: [default: same as prefix]
1.8 anton 61: --enable-force-reg Use explicit register declarations if they appear in
62: the machine.h file. This can cause a good speedup,
63: but also incorrect code with some gcc versions on
64: some processors (default disabled).
65: --enable-direct-threaded Force direct threading. This may not work on
66: some machines and may cause slowdown on others.
67: (default processor-dependent)
68: --enable-indirect-threaded Force indirect threading. This can cause a
69: slowdown on some machines.
70: (default processor-dependent)
71: --with-debug specifies option -g to compile with debug info (default)
1.22 anton 72: --without-debug omits the -g switch and creates smaller images on
73: machines where strip has problems with gcc style
74: debugging informations.
1.8 anton 75: --help: tells you about other parameters.
1.1 anton 76:
1.21 anton 77: The file Benchres shows which combination of the -enable options we
78: tried gave the best results for various machines.
79:
1.9 anton 80: If you don't like the defaults for the installation directories, you
81: should override them already during configure. E.g., if you want to
82: install in the /gnu hierarchy instead of in the default /usr/local
1.15 anton 83: hierarchy, say
1.5 anton 84:
1.9 anton 85: ./configure --prefix=/gnu
1.2 anton 86:
1.17 anton 87: Moreover, if your GCC is not called gcc (but, e.g., gcc-2.7.1), you
88: should say so during configuration. E.g.:
1.16 pazsan 89:
1.17 anton 90: env CC=gcc-2.7.1 ./configure
1.16 pazsan 91:
1.17 anton 92: You can also pass additional options to gcc in this way, e.g., if you
93: want to generate an a.out executable under Linux with gcc-2.7.0:
1.15 anton 94:
1.17 anton 95: env "CC=gcc -b i486-linuxaout -V 2.7.0" ./configure
1.15 anton 96:
1.22 anton 97: You can change the sizes of the various areas used in the default
98: image `gforth.fi' by passing the appropriate Gforth command line
99: options in the FORTHSIZES environment variable:
100:
101: env "FORTHSIZES=--dictionary-size=256k --data-stack-size=16k --fp-stack-size=16k --return-stack-size=16k --locals-stack-size=16k" ./configure
102:
103: The line above reaffirms the default sizes. Note that the locals
104: stack area is also used as input buffer stack.
1.17 anton 105:
106: Preloading installation-specific code
107:
108: If you want to have some installation-specific files loaded when
109: Gforth starts (e.g., an assembler for your processor), put commands
110: for loading them into /usr/local/share/gforth/site-forth/site-init.fs
111: (if the commands work for all architectures) or
112: /usr/local/lib/gforth/site-forth/site-init.fs (for
113: architecture-specific commands);
114: /usr/local/lib/gforth/site-forth/site-init.fs takes precedence if both
115: files are present (unless you change the search path). The file names
116: given above are the defaults; if you have changed the prefix, you have
117: to replace "/usr/local" in these names with your prefix.
118:
119: By default, the installation procedure creates an empty
120: /usr/local/share/gforth/site-forth/site-init.fs if there is no such
121: file.
122:
123: If you change the site-init.fs file, you should run "make install"
124: again for the changes to take effect (Actually, the part of "make
125: install" starting with "rm gforth.fi" is sufficient).
126:
127:
1.12 anton 128: Multiple Versions and Deinstallation
129:
130: Several versions of Gforth can be installed and used at the same
131: time. Version `foo' can be invoked with `gforth-foo'. We recommend to
132: keep the old version for some time after a new one has been installed.
1.10 anton 133:
1.12 anton 134: You can deinstall this version of Gforth with 'make uninstall' and
135: version foo with 'make uninstall VERSION=foo'. 'make uninstall' also
136: tells you how to uninstall Gforth completely.
1.17 anton 137:
1.10 anton 138:
1.12 anton 139: A Possible Problem
1.10 anton 140:
141: You need to read this only if you see a message like
142:
1.19 anton 143: ...
144: The Gforth installer should look into the INSTALL file
145:
146: 1) "gforth: Cannot load nonrelocatable image (compiled for address $1234) at address $5678
1.10 anton 147: The Gforth installer should look into the INSTALL file"
148:
1.11 anton 149: Gforth supports both relocatable and fixed-address images. If you load
1.10 anton 150: normal Forth code and save the image, you get a fixed-address
151: image. Producing a relocatable image is more difficult.
152:
1.11 anton 153: Therefore, Gforth has only a relocatable image of the kernel
1.20 pazsan 154: (kernel.fi), which is powerful enough to load the rest of
1.10 anton 155: Gforth. However, loading the rest takes a noticable amount of time. To
1.11 anton 156: avoid this delay (which would occur on every startup), the
157: installation procedure produces an image fixed at an address
158: determined at the Gforth run that produced the image. This
159: fixed-address image is loaded by default. On most OSs this works,
160: because the first chunk of memory is always allocated at the same
161: address. If the address changes, you get the message above.
1.10 anton 162:
163: An image address change can be caused by a change of the gforth
164: executable, or by a change (upgrade) of the OS; in these cases you
165: just have to rebuild and reinstall the fixed address image with
166:
167: rm gforth.fi; make gforth.fi; make install
168:
169: If you get such a message with a different address in place of the
1.19 anton 170: $5678 each time you try to start gforth, you cannot use fixed-address
1.10 anton 171: images on your OS. In this case, send us a message so that we start
172: searching for a comfortable solution to this problem. In the
173: meantime, start gforth with
174:
1.20 pazsan 175: gforth -i kernel.fi startup.fs
1.19 anton 176:
177:
178: 2) "%s: Checksum of image ($13579b) does not match the executable ($2468a)
179: The Gforth installer should look into the INSTALL file"
180:
181: A fixed-address image is not only fixed with respect to its base
182: address, but also with respect to certain addresses in the gforth
183: executable and the threading method. These things are encoded in a
184: checksum.
185:
186: If the checksum of the executable and the checksum of the image are
187: not equal, you get the message above. This can be caused, e.g., by
188: trying to run an image produced for a direct threading system on an
189: indirect threaded system.
190:
191: Chances are that you unintentionally tried to execute an image from
1.21 anton 192: the wrong directory. As a remedy, you can specify Gforth's search
1.19 anton 193: path with the "-p" command line option and with the GFORTHPATH
194: environment variable.
195:
196: On the other hand, if you need to solve the problem by creating a new
197: fixed-address image, you can use the steps described above.
198:
1.10 anton 199:
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