Notes on compiling preForth on Ubuntu 2404LTS

[cstrotm]

I was able to compile PreForth and seedForth under Ubuntu 24.04LTS with these steps:

apt install emacs-nox git build-essential tmux fasm gforth
dpkg --add-architecture i386
apt update
apt install libc6-dev-i386

git clone https://github.com/uho/preForth
cd preForth/src

edit Makefile and change the "ld" linker command to:

# assemble and link executable on linux
%.Linux: %.asm
        fasm $< $@.o
        LDEMULATION=elf_i386 ld -melf_i386  -o $@ \
           -dynamic-linker /lib32/ld-linux.so.2 \
           /usr/lib32/crt1.o /usr/lib32/crti.o \
           $@.o \
           -lc /usr/lib32/crtn.o
        # rm $@.o  

Then compile:

make clean
make

and start seedForth

./seed
..................................................
.
seedForth/interactive 2.2.0
---------------------------
380005 bytes free
0 echo ! 0 input-echo !
⓪
①
......................
ready
② ......
③ .....
➍


The 10001 st prime is 104743
Adjust your terminal to have 1 lines.
Δ has codepoint 916
Δ..
Interactive decompiler: Use single letter commands n d l c b s

ok: if line, ok: next line
ok: else line, ok: other line
ok: afterwords .
18 headers removed

Welcome!  ok 
>   ok 
>   ok 
>

[znmeb]

Ah ... the trick is to have the i386 headers - that's why it didn't work here. Thanks!!

[znmeb]

OK - I have it compiling but it segfaulted - I'll try with gdb tomorrow.

[js424]

This will also work on WSL (Windows Subsystem for Linux) with Ubuntu 24.04 installed and using the above (mentioned by cstrotm) changes to Makefile.

However when entering the interactive word free seed throws an exception and terminates back to the Ubuntu shell prompt. Esp32Forth behaves the same way not sure why. The word show-status does work for this information (using the word unused).

The emojis are a nice touch.