forthy42/gforth

Gforth mirror on GitHub (original is on Savannah)

Gforth README

Gforth is a fast and portable implementation of the ANS Forth/Forth 200x language. It works nicely with the Emacs editor, offers some nice features such as input completion and history, backtraces, a decompiler and a powerful locals facility, and it has a comprehensive manual. Gforth combines traditional implementation techniques with newer techniques for portability and performance: its inner interpreter is direct threaded with several optimizations, but you can also use a traditional-style indirect threaded interpreter. Gforth is distributed under the GNU General Public license (see COPYING).

Gforth is part of the GNU Operating System, developed by the GNU Project. To learn more about Free (libre) Software, you can read this page: https://gnu.org/philosophy/free-sw.html

If you are the author of an awesome program and want to join us in writing Free (libre) Software, please consider making it an official GNU program and become a GNU Maintainer. You can find instructions on how to do this here: https://www.gnu.org/help/evaluation

Another way to contribute to the Forth community is by uploading your program as a package to the Forth Net: https://theforth.net

Supported Systems

Gforth runs under GNU, BSD, and similar systems, MS Windows and MacOS X and should not be hard to port to other systems supported by GCC. This version has been tested successfully on the following platforms:

• GNU/Linux
  • amd64
  • arm64
  • armel
  • armhf
  • i386
  • mips
  • mipsel
  • powerpc
• Android/Linux
  • amd64
  • arm64
  • arm
  • i386
  • mips
• Gforth EC(embedded): r8c, 4stack, misc, 8086
• Windows
  • amd64
  • i386
• MacOS
  • amd64
  • i386

Installation

Read INSTALL for installation instructions from tarball,
or INSTALL.md for from git,
or INSTALL.BINDIST if you have a binary package distributed as .tar.xz file.
If you received a self-installing executable, just run it and follow the instructions.

To start the system, just say gforth (after installing it).

Download

You can find new versions of Gforth at
www.complang.tuwien.ac.at/forth/gforth/
and current snapshots on
www.complang.tuwien.ac.at/forth/gforth/Snapshots/current/
or at
ftp://ftp.gnu.org/gnu/gforth/

Files

On popular request, here are the meanings of unusual file extensions:

\*.fs Forth stream source file (include with "include _<file>_" from within gforth, or start with "gforth _<file1> <file2>_ ...")
\*.fi Forth image files (start with "gforth -i _<image file>_")
\*.fb Forth blocks file (load with "use _<block file>_ 1 load")
\*.i C include files
\*.texi.in documenation source
\*TAGS etags files

A number of Forth source files are included in this package that are not necessary for building Gforth. Not all of them are mentioned in the rest of the documentation, so here's a short overview:

Add-ons:

code.fs random.fs more.fs ansi.fs colorize.fs
oof.fs oofsampl.fs objects.fs blocked.fb tasker.fs

Utilities:

ans-report.fs etags.fs glosgen.fs filedump.fs

Games:

tt.fs sokoban.fs

Test programs (for testing Forth systems):

test/*.fs

Benchmarks:

bubble.fs siev.fs matrix.fs fib.fs

ANS Forth implementations of Gforth extensions:

compat/*.fs

C-Bindings:

unix/*.fs

Support

For discussions about Gforth, use the Usenet newsgroup comp.lang.forth. If you prefer not to post on Usenet, there is also a mailing list: [email protected]. You have to subsribe to post there. You can subscribe through http://lists.gnu.org/mailman/listinfo/gforth. The list is archived at http://lists.gnu.org/pipermail/gforth/.

You can also report bugs through these channels, or you can report them through our bug database:

https://savannah.gnu.org/bugs/?func=addbug&group=gforth

• anton [email protected] http://www.complang.tuwien.ac.at/anton/home.html

---

Authors: Bernd Paysan, Anton Ertl, Gerald Wodni Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2006,2007,2008,2009,2016,2017,2018,2019,2020,2021,2022,2023 Free Software Foundation, Inc.

This file is part of Gforth.

Gforth is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

gforth's Issues

build error: chcon can't apply partial context

I tried to upgrade Gforth.

git pull
make clean ; make -j 8

The last lines are:

make[1]: Leaving directory '/work/repo/gforth/engine'
ln -s -f engine/libgforth-ditc libgforth-ditc
chcon -t unconfined_execmem_exec_t libgforth-ditc || true
chcon: can't apply partial context to unlabeled file ‘libgforth-ditc’

How to fix this issue?

The OS is Debian GNU/Linux 8.7 (jessie)
gcc version 4.9.2

Gforth EC 8086 doesn't build

After having built and installed gforth, I get this:

./build-ec 8086
warning:EXIT is compile-only
cross.fs:63:13: redefined g with G
cross.fs:682:32: defined literal .dec as word
arch/8086/mach.fs:26:16: defined literal ec as word
cross.fs:1262:12: redefined NILInclude assembler
Include primitives

kernel-ec/nio.fs:96:3: defined literal d. as word
kernel-ec/nio.fs:104:3: defined literal . as word
kernel-ec/int.fs:128:1: '' is a double-cell integer; type `help' for more info
kernel-ec/int.fs:143:1: '' is a double-cell integer; type `help' for more info
kernel-ec/int.fs:527:3: defined literal dec. as wordPrepare booting

Unresolved:
key appeared in:
     accept file kernel-ec/saccept.fs line 31
emit appeared in:
     included file kernel-ec/saccept.fs line 55
     included file kernel-ec/saccept.fs line 52
     included file kernel-ec/saccept.fs line 52
     refill-loop file kernel-ec/saccept.fs line 50
     accept file kernel-ec/saccept.fs line 42
     accept file kernel-ec/saccept.fs line 39
     accept file kernel-ec/saccept.fs line 39
     accept file kernel-ec/saccept.fs line 39
     backspaces file kernel-ec/io.fs line 59
     space file kernel-ec/io.fs line 54
     bell file kernel-ec/io.fs line 50
     cr file kernel-ec/io.fs line 49
     type file kernel-ec/io.fs line 29
in file included from *the terminal*:0
in file included from *the terminal*:-1
kernel-ec/main.fs:97: error: Unresolved words!
.unresolved                          \ how did we do?
Backtrace:
                                         0 $7F76FE307040 throw
cross.fs:2093:17                         1 $7F76FE5D2F70 c(abort")
cross.fs:2106:15                         2 $7F76FE5D3168 .unresolved
cp: cannot stat 'kernl-8086.fi-': No such file or directory
cp: cannot stat 'kernl-8086.fi-': No such file or directory

Build fails with gst1-plugins-gl

Hi,
I tried building gforth with gst-plugins-gl-1.0 I get the following error:
/usr/bin/swig -forth -cpperraswarn -Dhost_os_linux_gnu -no-sectioncomments -use-structs -stackcomments -I/usr/lib64/gcc/x86_64-slackware-linux/4.8.2/include -I/usr/local/include -I/usr/lib64/gcc/x86_64-slackware-linux/4.8.2/include-fixed -I/usr/include -I/usr/include/gstreamer-1.0 -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -o gst-fsi.c+ ./gst.i
./gst.i:49: Error: Unable to find 'gst/gstdynamictypefactory.h'
./gst.i:61: Error: Unable to find 'gst/gststreamcollection.h'
./gst.i:68: Error: Unable to find 'gst/gstprotection.h'
./gst.i:73: Error: Unable to find 'gst/gststreams.h'
./gst.i:82: Error: Unable to find 'gst/gsttracer.h'
./gst.i:83: Error: Unable to find 'gst/gsttracerfactory.h'
./gst.i:84: Error: Unable to find 'gst/gsttracerrecord.h'
./gst.i:98: Error: Unable to find 'gst/gl/gstglformat.h'
./gst.i:101: Error: Unable to find 'gst/gl/gstglslstage.h'
./gst.i:103: Error: Unable to find 'gst/gl/gstglshaderstrings.h'
./gst.i:104: Error: Unable to find 'gst/gl/gstglcolorconvert.h'
./gst.i:106: Error: Unable to find 'gst/gl/gstglbasememory.h'
./gst.i:107: Error: Unable to find 'gst/gl/gstglbuffer.h'
./gst.i:109: Error: Unable to find 'gst/gl/gstglmemorypbo.h'
./gst.i:110: Error: Unable to find 'gst/gl/gstglrenderbuffer.h'
./gst.i:113: Error: Unable to find 'gst/gl/gstglbasefilter.h'
./gst.i:114: Error: Unable to find 'gst/gl/gstglviewconvert.h'
./gst.i:116: Error: Unable to find 'gst/gl/gstglsyncmeta.h'
./gst.i:117: Error: Unable to find 'gst/gl/gstgloverlaycompositor.h'
make[1]: *** [gst-fsi.c] Error 1
make[1]: Leaving directory `/tmp/SBo/gforth-0.7.9.896418d/unix'
make: *** [build-libcc-swig] Error 2

but when I exclude the *.h files listed above from gst.i then the build of gforth finishes. I have a diff that I created that I use when building for my flavor of Linux.

Regards,

Fred
gst.i.diff.patch.txt

Inappropriate error message in um/mod

Gforth 0.7.9_20210218, gforth-fast binary (and gforth-fast-ll-reg):

-1 -1  1  um/mod . .

The actual error message: "Division by zero"

An expected error message: "Integer overflow"

Initially, the question appeared on the StackOverflow.

NB: gforth, gforth-itc, gforth-ditc, gforth-ll-reg binaries show in this test an error message: "Result out of range".

recent build failures

Hi, I can build earlier versions from git. Currently using gforth-0.7.9_20220901

gforth: ELF 64-bit LSB pie executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, BuildID[sha1]=62be1665ac5639fa53ebaa07f855dd7399d5bce4, for GNU/Linux 3.2.0, with debug_info, not stripped

But, newer clones die at ...

n file included from the terminal:0:-94742900832207:
in file included from the terminal👎1:
in file included from minos2/widgets.fs:39:9:
minos2/ftgl-helper.fs:451:2: error: Undefined word
>>>texture_font_activate_size<<< ?ftgl-ior drop
Backtrace:
kernel/int.fs:317:10: 0 $7F198B9D23F0 throw
make: *** [Makefile:1503: doc/minosdoc.fd] Error 243

Recognizer for string literals — an odd side effect

Gforth 0.7.9_20200618

Input:

'|' parse "test passed"| forth-recognizer recognize .s

Output:

*the terminal*:1:24: error: Undefined word
'|' parse "test passed">>>|<<< forth-recognizer recognize .s
Backtrace:
kernel/int.fs:572:10                     0 $7F92D3400CA0 throw

Undefined word in widgets-test.fs while including on Android 7

Perhaps, Android - related issues have to be reported somewhere else... In case it applies, please see my report below.

I am running "Gforth ITC" on Android 7.0 with Huawei EMUI 5.0.4 on the top.
While running require minos2/widgets-test.fs, I am getting the following error message:

in file included from the terminal:1 /sdcard/gforth/current/minos2/widgets-test.fs:32: error: Undefined word glue*2 $7FFFFFFF color, ' atlas-tex >>>}}1image<<< dup .button2 simple[] value f6
Backtrace: 0 $72CF8F0248 throw

require minos2/gl-sample.fs seems to work without problems.

Gforth ITC reports the following version: 0.7.9_20190124.

The problem was also observed for a previous version of the Android gforth package.

Thanks!

Getting up|dn|left|right arrow keys

(after quite a long time digging around)

Is there a (simple) way to detect them?
Thank you very much.

Just to write a basic user interface

unix/opengl.fs:24:9 refers to unix/gl.fs, a nonexistant file

trying to package the newest version for nixpkgs, and i'm running into a lot of build failures, i think this might be the root cause.

No error report on exception

ABORT and THROW do not show any error report in case of the exception is not caught.

The code

:noname -1 throw 123 . ; execute

outputs

  ok

Gforth 0.7.9_20180905 on Debian 3.16

banner discussion

There is a discussion about the gforth banner there:

https://www.reddit.com/r/Forth/comments/151jmg7/hidding_banner_in_gforth_starting_a_fs_program/

the problem is by invoking gforth program.fs, it's starting first the informations within the program, or the result itself, and THEN the gforth banner. It's possible to use the bye or the quit command, but it might be more intuitive or logical to display the banner only when gforth is invoked alone.

LOCATE depends on the current directory

When Gforth is started from the binary that is located in the git repository working directory (project root), but the current directory is not the project root — locate and edit don't work properly.
Namely, locate doesn't show context in the source file, and edit doesn't open the proper source file.

Changing the current directory via set-dir also affects these words.

Issue with calling C functions: "called function of unfinished named C library"

Example code:

C-LIBRARY <stdlib.h>
c-function stdlib_abs abs n -- n
-3 stdlib_abs .

Output:

-3 stdlib_abs . 
*the terminal*:11:4: error: Called function of unfinished named C library
-3 >>>stdlib_abs<<< .
Backtrace:
libcc.fs:1027:20:                        0 $7F9979D98E30 throw 
libcc.fs:918:2:                          1 $7F9979D98138 compile-wrapper-function 
libcc.fs:932:12:                         2 $7F9979D98340 ?compile-wrapper

Any ideas as to why? This code works with the old gforth 0.7.3, apart from C-LIBRARY <stdlib.h> being \c #include <stdlib.h> instead.

[Feature request] Make possible long tap options

On Android, please make possible using standard long tap options: Copy, Paste etc.
It will drastically simplify the process of code development.

Needed to install `libltdl-dev` on Ubuntu when building from source

Problem

I attempted to build from source using the instructions in install.md.

When doing so, I hit the following error:

libtoolize: error: '/usr/share/aclocal/ltdl.m4' does not exist.

Solution

I was able to solve the problem by simply running

sudo apt-get install libltdl-dev

My question is: was this a configuration error on my part? If it is actually a required dependency for installation, I would be more than happy to update install.md and submit a pull request.

Invalid memory address when running executable with unix/socket.fs loaded

$ gforthmi /tmp/foo.fi unix/socket.fs
 code offset=195836027088 
   xt offset=195836027056 
label offset=195836027024 
           start      size        dp
    7F0B20AA7068    800000    1D5B20
    7F0B208A6000    200000      4738
    7F0B20825000     80000       628
    7F0B21908000     20000       100
           start      size        dp
    7FAD05DC8228    800000    1D5B20
    7FAD05BC7000    200000      4738
    7FAD05B46000     80000       628
    7FAD06C29000     20000       100
     50F0     7F0B2080DEF8     7FAD05B2EEF8
     5160     5567E1501A38     55957A0CBA38
     5170     7F0B21757800     7FAD06A78800
     5178     7F0B21758520     7FAD06A79520
     5180     7F0B21758440     7FAD06A79440
     51C0     5567E15067F0     55957A0D07F0
     51C8     5567E1501AA0     55957A0CBAA0
     51E8     5567E1501660     55957A0CB660
    1B1D0     5567E14D4EC0     55957A09EEC0
    1B238     7FFFA74BA0D0     7FFEF1AF6610
    1D3D0     5567E14D4C10     55957A09EC10
    296D8     5567E14DD1D0     55957A0A71D0
    2E448     5567E1506DF8     55957A0D0DF8
    2E620     5567E1506DD0     55957A0D0DD0
    3AD78     5567E1503B70     55957A0CDB70
    47F78     5567E14F9230     55957A0C3230
    4DF38     5567E14B82F0     55957A0822F0
    60AF0     5567E1504BE0     55957A0CEBE0
    60FF0     5567E1501770     55957A0CB770
    61028     5567E1501920     55957A0CB920
    67598     5567E1501C00     55957A0CBC00
    89630     7F0B21904211     7FAD06C25211
    896C8     7F0B2190423D     7FAD06C2523D
    89710     7F0B2190426A     7FAD06C2526A
    89758     7F0B21904298     7FAD06C25298
    897A0     7F0B219042C8     7FAD06C252C8
    897E8     7F0B219042F8     7FAD06C252F8
    89888     7F0B21904368     7FAD06C25368
    898D0     7F0B21904392     7FAD06C25392
    89918     7F0B219043C0     7FAD06C253C0
    89A28     7F0B21904425     7FAD06C25425
    89A80     7F0B21904459     7FAD06C25459
    89AD0     7F0B2190447B     7FAD06C2547B
    89B20     7F0B2190449E     7FAD06C2549E
    89C40     5567E1505400     55957A0CF400
    89C90     7F0B218FF3BE     7FAD06C203BE
    89CD0     7F0B218FF3E4     7FAD06C203E4
    89D20     7F0B218FF408     7FAD06C20408
    89D68     7F0B218FF42D     7FAD06C2042D
    89F40     7F0B218FF53D     7FAD06C2053D
    89F98     7F0B218FF5A1     7FAD06C205A1
    89FE0     7F0B218FF5D6     7FAD06C205D6
    8A100     7F0B218FF6B2     7FAD06C206B2
    8A198     7F0B218FF70C     7FAD06C2070C
    8A1D8     7F0B218FF731     7FAD06C20731
    8A610     7F0B218FFA6A     7FAD06C20A6A
    8AEC0             BC14             BC15
   1CCE10     5567E1504DB8     55957A0CEDB8
   1CE680     5567E1504DB8     55957A0CEDB8
   1CE740     5567E1504DB8     55957A0CEDB8
   1CE780     5567E1504DB8     55957A0CEDB8
   1CEA90     5567E1504DB8     55957A0CEDB8
   1CEAE0     5567E1504DB8     55957A0CEDB8
   1CEC60     5567E1504DB8     55957A0CEDB8
   1CECB0     5567E1504DB8     55957A0CEDB8
   1CEF90     5567E1504DB8     55957A0CEDB8
   1CF090     5567E1504DB8     55957A0CEDB8
   1CF5C0     5567E1504DB8     55957A0CEDB8
   1CF600     5567E1504DB8     55957A0CEDB8
   1CFE40     5567E1507798     55957A0D1798
   1CFE50     5567E1506DF8     55957A0D0DF8
   1CFE90     5567E1504DB8     55957A0CEDB8
   1CFEA0     5567E1507798     55957A0D1798
   1CFED0     5567E1506D98     55957A0D0D98
   1CFEE0     5567E1506DF8     55957A0D0DF8
   1CFF00     5567E1507798     55957A0D1798
   1CFF30     5567E1507798     55957A0D1798
   1CFF40     5567E1506DF8     55957A0D0DF8
   1D0860     5567E1504DB8     55957A0CEDB8
   1D0870     5567E1507798     55957A0D1798
   1D0880     5567E1506D98     55957A0D0D98
   1D08D0     5567E1506DF8     55957A0D0DF8
   1D0C40     5567E1504DB8     55957A0CEDB8
   1D0C50     5567E1507798     55957A0D1798
   1D0C60     5567E1506D98     55957A0D0D98
   1D0CB0     5567E1506DF8     55957A0D0DF8

$ ./foo.fi

*the terminal*:0:-94170757775551: error: Invalid memory address
>>><<<
Backtrace:
/tmp/gforth-0.7.9_20201105/share/gforth/0.7.9_20201105/kernel/int.fs:530:9:  0 $7F19F906E7C8 @ 
/tmp/gforth-0.7.9_20201105/share/gforth/0.7.9_20201105/libcc.fs:1060:15:  1 $7F19F8DDF400 >does-code 
/tmp/gforth-0.7.9_20201105/share/gforth/0.7.9_20201105/kernel/tools.fs:108:17:  2 $7F19F9084B00 execute 
                                         3 $55D323A55DC8 
/tmp/gforth-0.7.9_20201105/share/gforth/0.7.9_20201105/libcc.fs:1060:8:  4 $7F19F8DDF3E0 
/tmp/gforth-0.7.9_20201105/share/gforth/0.7.9_20201105/libcc.fs:1068:19:  5 $7F19F8E62DA8 traverse-wordlist 
/tmp/gforth-0.7.9_20201105/share/gforth/0.7.9_20201105/search.fs:214:30:  6 $7F19F9087AD8 execute 
                                         7 $7F19F908F4B8 
/tmp/gforth-0.7.9_20201105/share/gforth/0.7.9_20201105/libcc.fs:1060:5:  8 $7F19F8E62D78 
/tmp/gforth-0.7.9_20201105/share/gforth/0.7.9_20201105/libcc.fs:1068:40:  9 $7F19F90CA168 map-vocs 
/tmp/gforth-0.7.9_20201105/share/gforth/0.7.9_20201105/libcc.fs:1096:28: 10 $7F19F90CA368 rebind-libcc 
/tmp/gforth-0.7.9_20201105/share/gforth/0.7.9_20201105/gforthrc.fs:22:17: 11 $7F19F90CAB88 
/tmp/gforth-0.7.9_20201105/share/gforth/0.7.9_20201105/ansi.fs:177:27: 12 $7F19F90CC6B8 

Question regarding embedding gforth and calling c-functions (unix/example.c)

I'm interested in embedding (g)forth into my own application and calling some c-functions from forth. My understanding is that unix/example.c provides an example on how to do this. The corresponding commit also mention an example.fs, however, this file appears to be missing.
Is it possible to call a c-function from embedded forth, without compiling the c-function into a shared library?
Happy New Year!

Problem building both git and tarball version on MacOS Sonoma

On MacOS Sonoma the ./configure command ends with the following error:

./configure: line 16044: syntax error near unexpected token llvm=*' ./configure: line 16044: llvm=*)'

Putting quotes around llvm=* helped, but then the complication got stuck at engine.c.

Can't build; blocked at deep error message

I admit I don't understand autotools, and I am effectively stopped. but I thought I'd share this transcript in case you find it useful. There are only three commands: "autoreconf -i", "./configure", "make". I got the same results using the latest release, 0.7.9 I believe. Following the instructions in "INSTALL", noticing there is no file "./configure", having a prior failure running "autoconf", googling a bit and taking a glue from nickjcroucher/gubbins#130, I ran "autoreconf -i". The final error message from "make" is about things far deeper than I understand, so it's pretty hopeless for me to try to fix this.

~/Documents/GitHub/gforth on  master ⌚ 6:05:46
$ autoreconf -i
libtoolize: putting auxiliary files in '.'.
libtoolize: copying file './compile'
libtoolize: copying file './config.guess'
libtoolize: copying file './config.sub'
libtoolize: copying file './depcomp'
libtoolize: copying file './install-sh'
libtoolize: copying file './missing'
libtoolize: copying file './ltmain.sh'
libtoolize: putting macros in AC_CONFIG_MACRO_DIRS, 'm4'.
libtoolize: copying file 'm4/libtool.m4'
libtoolize: copying file 'm4/ltargz.m4'
libtoolize: copying file 'm4/ltdl.m4'
libtoolize: copying file 'm4/ltoptions.m4'
libtoolize: copying file 'm4/ltsugar.m4'
libtoolize: copying file 'm4/ltversion.m4'
libtoolize: copying file 'm4/lt~obsolete.m4'
libtoolize: putting libltdl files in LT_CONFIG_LTDL_DIR, 'libltdl'.
libtoolize: copying file 'libltdl/COPYING.LIB'
libtoolize: creating file 'libltdl/Makefile.am'
libtoolize: copying file 'libltdl/README'
libtoolize: creating file 'libltdl/configure.ac'
libtoolize: copying file 'libltdl/aclocal.m4'
libtoolize: creating file 'libltdl/Makefile.in'
libtoolize: copying file 'libltdl/config-h.in'
libtoolize: creating file 'libltdl/configure'
libtoolize: copying file 'libltdl/libltdl/lt__alloc.h'
libtoolize: copying file 'libltdl/libltdl/lt__argz_.h'
libtoolize: copying file 'libltdl/libltdl/lt__dirent.h'
libtoolize: copying file 'libltdl/libltdl/lt__glibc.h'
libtoolize: copying file 'libltdl/libltdl/lt__private.h'
libtoolize: copying file 'libltdl/libltdl/lt__strl.h'
libtoolize: copying file 'libltdl/libltdl/lt_dlloader.h'
libtoolize: copying file 'libltdl/libltdl/lt_error.h'
libtoolize: copying file 'libltdl/libltdl/lt_system.h'
libtoolize: copying file 'libltdl/libltdl/slist.h'
libtoolize: copying file 'libltdl/loaders/dld_link.c'
libtoolize: copying file 'libltdl/loaders/dlopen.c'
libtoolize: copying file 'libltdl/loaders/dyld.c'
libtoolize: copying file 'libltdl/loaders/load_add_on.c'
libtoolize: copying file 'libltdl/loaders/loadlibrary.c'
libtoolize: copying file 'libltdl/loaders/preopen.c'
libtoolize: copying file 'libltdl/loaders/shl_load.c'
libtoolize: copying file 'libltdl/lt__alloc.c'
libtoolize: copying file 'libltdl/lt__argz.c'
libtoolize: copying file 'libltdl/lt__dirent.c'
libtoolize: copying file 'libltdl/lt__strl.c'
libtoolize: copying file 'libltdl/lt_dlloader.c'
libtoolize: copying file 'libltdl/lt_error.c'
libtoolize: copying file 'libltdl/ltdl.c'
libtoolize: copying file 'libltdl/ltdl.h'
libtoolize: copying file 'libltdl/slist.c'
libtoolize: Consider adding '-I m4' to ACLOCAL_AMFLAGS in Makefile.am.

~/Documents/GitHub/gforth on  master! ⌚ 6:05:59
$ ./configure
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking how to run the C preprocessor... gcc -E
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
checking for ANSI C header files... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking minix/config.h usability... no
checking minix/config.h presence... no
checking for minix/config.h... no
checking whether it is safe to define __EXTENSIONS__... yes
checking build system type... x86_64-pc-linux-gnu
checking host system type... x86_64-pc-linux-gnu
checking how to print strings... printf
checking for a sed that does not truncate output... /bin/sed
checking for fgrep... /bin/grep -F
checking for ld used by gcc... /usr/bin/x86_64-linux-gnu-ld
checking if the linker (/usr/bin/x86_64-linux-gnu-ld) is GNU ld... yes
checking for BSD- or MS-compatible name lister (nm)... /usr/bin/nm -B
checking the name lister (/usr/bin/nm -B) interface... BSD nm
checking whether ln -s works... yes
checking the maximum length of command line arguments... 1572864
checking how to convert x86_64-pc-linux-gnu file names to x86_64-pc-linux-gnu format... func_convert_file_noop
checking how to convert x86_64-pc-linux-gnu file names to toolchain format... func_convert_file_noop
checking for /usr/bin/x86_64-linux-gnu-ld option to reload object files... -r
checking for objdump... objdump
checking how to recognize dependent libraries... pass_all
checking for dlltool... no
checking how to associate runtime and link libraries... printf %s\n
checking for ar... ar
checking for archiver @FILE support... @
checking for strip... strip
checking for ranlib... ranlib
checking for gawk... gawk
checking command to parse /usr/bin/nm -B output from gcc object... ok
checking for sysroot... no
checking for a working dd... /bin/dd
checking how to truncate binary pipes... /bin/dd bs=4096 count=1
checking for mt... mt
checking if mt is a manifest tool... no
checking for dlfcn.h... yes
checking for objdir... .libs
checking if gcc supports -fno-rtti -fno-exceptions... no
checking for gcc option to produce PIC... -fPIC -DPIC
checking if gcc PIC flag -fPIC -DPIC works... yes
checking if gcc static flag -static works... yes
checking if gcc supports -c -o file.o... yes
checking if gcc supports -c -o file.o... (cached) yes
checking whether the gcc linker (/usr/bin/x86_64-linux-gnu-ld -m elf_x86_64) supports shared libraries... yes
checking whether -lc should be explicitly linked in... no
checking dynamic linker characteristics... GNU/Linux ld.so
checking how to hardcode library paths into programs... immediate
checking whether stripping libraries is possible... yes
checking if libtool supports shared libraries... yes
checking whether to build shared libraries... yes
checking whether to build static libraries... no
checking what extension is used for runtime loadable modules... .so
checking what variable specifies run-time module search path... LD_LIBRARY_PATH
checking for the default library search path... /lib /usr/lib /usr/lib/x86_64-linux-gnu/libfakeroot /usr/local/lib/i386-linux-gnu /lib/i386-linux-gnu /usr/lib/i386-linux-gnu /usr/local/lib/i686-linux-gnu /lib/i686-linux-gnu /usr/lib/i686-linux-gnu /usr/local/lib /usr/local/lib/x86_64-linux-gnu /lib/x86_64-linux-gnu /usr/lib/x86_64-linux-gnu /lib32 /usr/lib32 
checking for library containing dlopen... -ldl
checking for dlerror... yes
checking for shl_load... no
checking for shl_load in -ldld... no
checking for dld_link in -ldld... no
checking for _ prefix in compiled symbols... no
checking whether deplibs are loaded by dlopen... yes
checking for argz.h... yes
checking for error_t... yes
checking for argz_add... yes
checking for argz_append... yes
checking for argz_count... yes
checking for argz_create_sep... yes
checking for argz_insert... yes
checking for argz_next... yes
checking for argz_stringify... yes
checking if argz actually works... yes
checking whether libtool supports -dlopen/-dlpreopen... yes
checking for ltdl.h... yes
checking whether lt_dlinterface_register is declared... yes
checking for lt_dladvise_preload in -lltdl... yes
checking where to find libltdl headers... 
checking where to find libltdl library... -lltdl
checking for unistd.h... (cached) yes
checking for dl.h... no
checking for sys/dl.h... no
checking for dld.h... no
checking for mach-o/dyld.h... no
checking for dirent.h... yes
checking for closedir... yes
checking for opendir... yes
checking for readdir... yes
checking for strlcat... no
checking for strlcpy... no
checking for special C compiler options needed for large files... no
checking for _FILE_OFFSET_BITS value needed for large files... no
checking for gcc... (cached) gcc
checking whether we are using the GNU C compiler... (cached) yes
checking whether gcc accepts -g... (cached) yes
checking for gcc option to accept ISO C89... (cached) none needed
checking whether to use two dispatches per conditional branch... 1
checking make type... GNU Make
checking whether the linker accepts -Wl,--export-dynamic... yes
checking for __builtin___clear_cache... yes
Check for arch/amd64//gforth.ld (false)
checking size of char *... 8
checking size of void *... 8
checking size of char... 1
checking size of short... 2
checking size of int... 4
checking size of long... 8
checking size of long long... 8
checking size of intptr_t... 8
checking size of int128_t... 0
checking size of uint128_t... 0
checking for a C type for cells... long
checking for a C type for wydes... short
checking for a C type for tetrabytes... int
checking for a C type for octabytes... long
checking for a C type for double-cells... none
checking for a C type for unsigned double-cells... none
checking for off_t... yes
checking size of off_t... 8
checking if gcc understands -fno-gcse... yes
checking if gcc understands -fcaller-saves... yes
checking if gcc understands -fno-defer-pop... yes
checking if gcc understands -fno-inline... yes
checking if gcc understands -fwrapv... yes
checking if gcc understands -fchar-unsigned... 
checking if gcc understands -fno-strict-aliasing... yes
checking if gcc understands -fno-cse-follow-jumps... yes
checking if gcc understands -fno-reorder-blocks... yes
checking if gcc understands -fno-reorder-blocks-and-partition... yes
checking if gcc understands -fno-toplevel-reorder... yes
checking if gcc understands -fno-trigraphs... 
checking if gcc understands -falign-labels=1... yes
checking if gcc understands -falign-loops=1... yes
checking if gcc understands -falign-jumps=1... yes
checking if gcc understands -fno-delete-null-pointer-checks... yes
checking if gcc understands -pthread... yes
checking if gcc understands -Wimplicit-function-declaration... 
checking how to suppress 'unused variable' warnings... __attribute__((unused))
checking whether gcc understands '__thread'... yes
checking how to invoke m4... m4 -s
checking for install-info... /usr/bin/install-info
checking for chcon... chcon -t unconfined_execmem_exec_t
checking whether byte ordering is bigendian... no
checking if and how we can waste code space... .skip 16
checking if and how we can do comments in asm statements... "# "
checking whether ln -s works... yes
checking for a BSD-compatible install... /usr/bin/install -c
checking for texi2dvi4a2ps... no
checking for texi2dvi... texi2dvi
checking for emacs... emacs
checking for glibtool... no
checking for libtool... libtool
checking for asin in -lm... yes
checking for lt_dlinit in -lltdl... yes
checking for clock_gettime in -lrt... yes
checking ffi.h usability... yes
checking ffi.h presence... yes
checking for ffi.h... yes
checking for ffi_call in -lffi... yes
checking for __builtin_avcall in -lavcall... no
checking for working memcmp... yes
checking for dlopen in -ldl... yes
checking for memmove... yes
checking for strtoul... yes
checking for pow10... no
checking for sincos... yes
checking for strerror... yes
checking for strsignal... yes
checking for atanh... yes
checking for _LARGEFILE_SOURCE value needed for large files... no
checking for ftello... yes
checking for dlopen... yes
checking for sys_siglist... yes
checking for getrusage... yes
checking for nanosleep... yes
checking for clock_gettime... yes
checking for stack_t... yes
checking whether sys_siglist is declared... yes
checking for getopt_long... yes
checking for expm1... yes
checking for log1p... yes
checking for mcheck... yes
checking for mprobe... yes
checking for rint... yes
checking for ecvt_r... (cached) no
checking sys/mman.h usability... yes
checking sys/mman.h presence... yes
checking for sys/mman.h... yes
checking sys/epoll.h usability... yes
checking sys/epoll.h presence... yes
checking for sys/epoll.h... yes
checking fnmatch.h usability... yes
checking fnmatch.h presence... yes
checking for fnmatch.h... yes
checking alloca.h usability... yes
checking alloca.h presence... yes
checking for alloca.h... yes
checking wchar.h usability... yes
checking wchar.h presence... yes
checking for wchar.h... yes
checking endian.h usability... yes
checking endian.h presence... yes
checking for endian.h... yes
checking spawn.h usability... yes
checking spawn.h presence... yes
checking for spawn.h... yes
checking for wcwidth... yes
checking for working POSIX fnmatch... yes
checking for mmap... yes
checking for sysconf... yes
checking for getpagesize... yes
checking for pselect... yes
checking for pthread_setaffinity_np... yes
checking for emacs... (cached) emacs
checking where .elc files should go... ${datadir}/emacs/site-lisp
checking for __builtin_clzl... yes
checking for __builtin_bswap16... yes
checking for __builtin_bswap32... yes
checking for __builtin_bswap64... yes
checking for atomic builtins (__sync_...)... true
checking for gforth... echo "You need to configure with a gforth in \$PATH to build this part" && false
checking for swig... /usr/bin/swig
swig error : Unrecognized option -forth
Use 'swig -help' for available options.
configure: WARNING: *** Swig without -forth. Building library buildings  from tarball.
configure: creating ./config.status
config.status: creating kernel/version.fs
config.status: creating Makefile
config.status: creating Makedist
config.status: creating gforthmi
config.status: creating gforthmi.sh
config.status: creating vmgen
config.status: creating machpc.fs
config.status: creating envos.fs
config.status: creating preforth
config.status: creating libforth
config.status: creating gforthker
config.status: creating engine/Makefile
config.status: WARNING:  'engine/Makefile.in' seems to ignore the --datarootdir setting
config.status: creating engine/gforth.h
config.status: creating doc/version.texi
config.status: creating doc/Makefile
config.status: creating unix/Makefile
config.status: creating debian/changelog
config.status: creating debian/control
config.status: creating build-ec
config.status: creating engine/config.h
config.status: executing libtool commands
rm: cannot remove 'libtoolT': No such file or directory
config.status: executing stamp-h commands
mkdir -p -- include/gforth/0.7.9_20180905/amd64
=== configuring in libltdl (/home/rebcabin/Documents/GitHub/gforth/libltdl)
configure: running /bin/bash ./configure --disable-option-checking '--prefix=/usr/local'  --cache-file=/dev/null --srcdir=.
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking whether make supports nested variables... (cached) yes
checking build system type... x86_64-pc-linux-gnu
checking host system type... x86_64-pc-linux-gnu
checking how to print strings... printf
checking for style of include used by make... GNU
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking whether gcc understands -c and -o together... yes
checking dependency style of gcc... gcc3
checking for a sed that does not truncate output... /bin/sed
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
checking for fgrep... /bin/grep -F
checking for ld used by gcc... /usr/bin/x86_64-linux-gnu-ld
checking if the linker (/usr/bin/x86_64-linux-gnu-ld) is GNU ld... yes
checking for BSD- or MS-compatible name lister (nm)... /usr/bin/nm -B
checking the name lister (/usr/bin/nm -B) interface... BSD nm
checking whether ln -s works... yes
checking the maximum length of command line arguments... 1572864
checking how to convert x86_64-pc-linux-gnu file names to x86_64-pc-linux-gnu format... func_convert_file_noop
checking how to convert x86_64-pc-linux-gnu file names to toolchain format... func_convert_file_noop
checking for /usr/bin/x86_64-linux-gnu-ld option to reload object files... -r
checking for objdump... objdump
checking how to recognize dependent libraries... pass_all
checking for dlltool... no
checking how to associate runtime and link libraries... printf %s\n
checking for ar... ar
checking for archiver @FILE support... @
checking for strip... strip
checking for ranlib... ranlib
checking command to parse /usr/bin/nm -B output from gcc object... ok
checking for sysroot... no
checking for a working dd... /bin/dd
checking how to truncate binary pipes... /bin/dd bs=4096 count=1
checking for mt... mt
checking if mt is a manifest tool... no
checking how to run the C preprocessor... gcc -E
checking for ANSI C header files... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking for dlfcn.h... yes
checking for objdir... .libs
checking if gcc supports -fno-rtti -fno-exceptions... no
checking for gcc option to produce PIC... -fPIC -DPIC
checking if gcc PIC flag -fPIC -DPIC works... yes
checking if gcc static flag -static works... yes
checking if gcc supports -c -o file.o... yes
checking if gcc supports -c -o file.o... (cached) yes
checking whether the gcc linker (/usr/bin/x86_64-linux-gnu-ld -m elf_x86_64) supports shared libraries... yes
checking whether -lc should be explicitly linked in... no
checking dynamic linker characteristics... GNU/Linux ld.so
checking how to hardcode library paths into programs... immediate
checking for shl_load... no
checking for shl_load in -ldld... no
checking for dlopen... no
checking for dlopen in -ldl... yes
checking whether a program can dlopen itself... yes
checking whether a statically linked program can dlopen itself... no
checking whether stripping libraries is possible... yes
checking if libtool supports shared libraries... yes
checking whether to build shared libraries... yes
checking whether to build static libraries... yes
checking what extension is used for runtime loadable modules... .so
checking what variable specifies run-time module search path... LD_LIBRARY_PATH
checking for the default library search path... /lib /usr/lib /usr/lib/x86_64-linux-gnu/libfakeroot /usr/local/lib/i386-linux-gnu /lib/i386-linux-gnu /usr/lib/i386-linux-gnu /usr/local/lib/i686-linux-gnu /lib/i686-linux-gnu /usr/lib/i686-linux-gnu /usr/local/lib /usr/local/lib/x86_64-linux-gnu /lib/x86_64-linux-gnu /usr/lib/x86_64-linux-gnu /lib32 /usr/lib32 
checking for library containing dlopen... -ldl
checking for dlerror... yes
checking for shl_load... (cached) no
checking for shl_load in -ldld... (cached) no
checking for dld_link in -ldld... no
checking for _ prefix in compiled symbols... no
checking whether deplibs are loaded by dlopen... yes
checking for argz.h... yes
checking for error_t... yes
checking for argz_add... yes
checking for argz_append... yes
checking for argz_count... yes
checking for argz_create_sep... yes
checking for argz_insert... yes
checking for argz_next... yes
checking for argz_stringify... yes
checking if argz actually works... yes
checking whether libtool supports -dlopen/-dlpreopen... yes
checking for unistd.h... (cached) yes
checking for dl.h... no
checking for sys/dl.h... no
checking for dld.h... no
checking for mach-o/dyld.h... no
checking for dirent.h... yes
checking for closedir... yes
checking for opendir... yes
checking for readdir... yes
checking for strlcat... no
checking for strlcpy... no
checking that generated files are newer than configure... done
configure: creating ./config.status
config.status: creating Makefile
config.status: creating config.h
config.status: executing depfiles commands
config.status: executing libtool commands
cp: cannot stat 'kernl32l.fi': No such file or directory
cp: cannot stat 'kernl32b.fi': No such file or directory
cp: cannot stat 'kernl64l.fi': No such file or directory
cp: cannot stat 'kernl64b.fi': No such file or directory

*** Config summary: Warnings exist ***

Swig without -forth feature.

~/Documents/GitHub/gforth on  master! ⌚ 6:06:14
$ make
cd . && autoheader
echo timestamp > ./stamp-h.in
make: Circular kernel/version.fs <- kernel/version.fs dependency dropped.
(cd . && m4 -s -Dcondbranch_opt=0 prim) >prim.b
./preforth -p ".:~+:." prims2x.fs -e "c-flag on s\" prim.i\" save-mem out-filename 2! s\" "prim.b"\" ' output-c ' output-c-combined process-file bye" >engine/prim.i
Makefile:1094: recipe for target 'engine/prim.i' failed
make: *** [engine/prim.i] Error 1
make: *** Deleting file 'engine/prim.i'

Ctrl+D and REFILL

I would expect that in Linux, REFILL should return 0 if a user enters Ctrl+D Enter at the start of a line in interactive mode.

But the actual result: REFILL throws an exception with code -56 (error in "QUIT").

Gforth version: 0.7.9_20200213

Testcase

[: 0 ['] refill catch cr . .  ;] execute \ <Enter> <Ctrl+D> <Enter>

Expected result: it prints 0 0

Actual result: it prints -56 0

gforth manual cannot be automatically queried

Comparing with php.net, each function has a clear URL, like https://www.php.net/manual/en/function.array-chunk

For gforth, it looks like https://gforth.org/manual/Memory-Blocks.html#index-erase_0028--addr-u-_002d_002d--_0029-core_002dext for the erase word.

This means I cannot create a script to automatically query the meaning of a word.

see does not explain the semantics of a word, so it's not a good alternative (unless you're willing to learn and read assembly, or already know Forth in-depth).

Would you be willing to restructure the gforth manual homepage to allow for IDE-like word lookup in Vim/Emacs?

configure = OK but not make

$ make
./preforth -p ".:~+:." prims2x.fs -e "c-flag on s\" prim.i\" save-mem out-filename 2! s\" "prim.b"\" ' output-c ' output-c-combined process-file bye" >engine/prim.i
make: *** [Makefile:1224 : engine/prim.i] Erreur 1
make: *** Suppression du fichier « engine/prim.i »

running on debian12 all devlibs are ok configure shows no errors so I did not try make install of course

Files with two dots do not work under Windows!

There are some files which include two dots. Therefore, a git clone to Windows does not work.

Strange "invalid memory address" error with [else]

Gforth 0.7.9_20180905

The code:

: 0?E ( 0|x -- 0|x ) ]] dup 0= if exit then [[ ; immediate
: execute-name? ( i*x c-addr u -- j*x flag ) find-name 0?E name>interpret 0?E execute true ; 

S" [ELSE]" execute-name? [THEN]
.

The output:

*the terminal*:4: error: Invalid memory address
>>>.<<<

The same issue with the following code:

0 S" [IF]" execute-name? [THEN]
.

Callbacks for configuring sockets?

For the unix/socket.fs code, I had a project where I wanted to use the 'open-socket' code, but needed to set a socket option during socket creation. I ended up modifying the socket.fs as follows:

diff foo/socket.fs socket.fs
354a355,357
> defer get-socket-options
> :noname ; is get-socket-options
> 
357a361
>             get-socket-options

This enabled me to add the following in my program:

6 constant IPPROTO_TCP
7 constant TCP_SYNCNT
create SYN_COUNT 1 , 

:noname dup IPPROTO_TCP TCP_SYNCNT SYN_COUNT 4 setsockopt ?ior ;
is get-socket-options

It seems like this sort of strategy might be helpful for others who want an abstract socket library, but may need to customize its operation. Using some deferred words as callbacks makes this pretty easy, and (I think) elegant, without a significant penalty. The alternative for me was to duplicate a bunch of the socket.fs code in my program, which defeats the purpose of having a library, IMO.

random.fs not compiling as expected.

Gforth 0.7.3, Copyright (C) 1995-2008 Free Software Foundation, Inc.
Gforth comes with ABSOLUTELY NO WARRANTY; for details type `license'
Type `bye' to exit
  ok
  ok
  ok
    Variable seed  ok
      ok
    $10450405 Constant generator  ok
      ok
    : rnd  ( -- x )  seed @ generator um* drop 1+ dup seed ! ;  ok
    : seed-init ( -- )  ntime drop seed +!  rnd drop ; 
:9: Undefined word
    : seed-init ( -- )  >>>ntime<<< drop seed +!  rnd drop ;
Backtrace:

Looks like there is a dependency to ntime word.

chcon: failed to get security context of 'libgforth-ditc': Operation not supported

I ran ./BUILD-FROM-SCRATCH which basically just does: ./autogen.sh && ./configure && make.
It fails with:

make[1]: Leaving directory '/tmp/gforth-0.7.9_20201022/engine'
ln -s -f engine/libgforth-ditc libgforth-ditc
chcon -t unconfined_execmem_exec_t libgforth-ditc || true
chcon: failed to get security context of 'libgforth-ditc': Operation not supported

Workaround is modifying the Makefile and changing the line with chcon to true, for example.

`make install` fails because of missing `reserve_code_super` and `append_jump`

cd engine && make DOSTRIP=true gforth-prof-noll OPT=-noll OPTDEFINES= OPTOBJECTS=dblsub.o
make[1]: Entering directory '/tmp/gforth-git/engine'
gcc  -Wl,--export-dynamic -pthread  engine-prof-noll.o main-prof-noll.o io.o signals.o support-noll.o  pub.o -ldl -lrt -lltdl -lm   libmain.o profile-noll.o -ldl -lrt -lltdl -lm   -o gforth-prof-noll
/usr/bin/ld: main-prof-noll.o: in function `optimize_rewrite.constprop.0':
main.c:(.text+0xb16): undefined reference to `reserve_code_super'
/usr/bin/ld: main-prof-noll.o: in function `compile_prim1':
main.c:(.text+0x1922): undefined reference to `append_jump'
collect2: error: ld returned 1 exit status
make[1]: *** [Makefile:180: gforth-prof-noll] Error 1
make[1]: Leaving directory '/tmp/gforth-git/engine'
make: *** [Makefile:1271: gforth-prof] Error 2

To reproduce:

./autogen.sh
./configure --without-debug --enable-prof
make install

Thoughts?

Edit: Same happens with ./BUILD-FROM-SCRATCH --without-debug --enable-prof.

Edit 2: ./BUILD-FROM-SCRATCH --without-debug works, but with --enable-prof it does NOT work. Seems like --enable-prof is at fault here, with that I get the above error.

It would be nice if I could get rid of -g when compiling with --without-debug by the way. I do not know what --without-debug does exactly, if anything.

clang build hangs NetBSD 8.99.1 - clang 5.0svn

NetBSD chieftec 8.99.1 NetBSD 8.99.1 (GENERIC) #1: Thu Jun 22 19:26:57 CEST 2017 root@chieftec:/public/netbsd-root/sys/arch/amd64/compile/GENERIC amd64

gforth 0.7.3 in pkgsrc

clang 5.0.0 (from llvm-svn trunk version)

Build hangs on this command:

clang -I./../arch/amd64 -I. -Wall -O2 -Dunix -Og -g -ggdb -I/usr/pkg/include -I/usr/include -DHAVE_CONFIG_H -DFORCE_LL -DFORCE_REG -DDEFAULTPATH=".:/usr/pkg/lib/gforth/site-forth:/usr/pkg/share/gforth/site-forth:/usr/pkg/lib/gforth/0.7.3:/usr/pkg/share/gforth/0.7.3" -I/usr/pkg/include -I/usr/include -fno-gcse -fno-strict-aliasing -fno-reorder-blocks -falign-labels=1 -falign-loops=1 -falign-jumps=1 -DGFORTH_DEBUGGING -o engine-ll-reg.o -c ./engine.c

Travis CI build matrix

If you also like to build on OS X, see this: https://docs.travis-ci.com/user/multi-os/
(you may have to ask [email protected] to enable this for your repo)

And you can set environment variables to different values if you want to build with different configurations.

For example, I build my Forth using Linux and OS X, gcc -m32 and gcc -m64, and C and x86 targets. That would be eight build jobs, but x86 is not supported for OS X yet, so I exclude those two:

os:
  - linux
  - osx
env:
  - TARGET=c M32=
  - TARGET=c M32=-m32
  - TARGET=x86 M32=
  - TARGET=x86 M32=-m32
matrix:
  exclude:
    - os: osx
      env: TARGET=x86 M32=
    - os: osx
      env: TARGET=x86 M32=-m32