how to install lem on linux (garuda (arch))

install lem.txt

installing lem

go here and click on the right download.  mine was under AMD64 and across from linux
https://www.sbcl.org/platform-table.html

cd to the folder you downloaded it to
cd Downloads/

decompress the file you downloaded.  it has the sbcl binary
bzip2 -cd sbcl-2.4.10-x86-64-linux-binary.tar.bz2 | tar xvf -

cd into the file
cd sbcl-2.4.10-x86-64-linux/

run the installation script as admin
sudo sh install.sh

you will get this if it worked :
SBCL has been installed:
 binary /usr/local/bin/sbcl
 core and contribs in /usr/local/lib/sbcl/

for me it worked on the first try

run sbcl
sbcl

evaluate an expression to see that it works
(+ 2 2)
and then hit enter or Control+m

exit out of sbcl
(exit)

dowload the source which is on the same page as the one where you downloaded the previous file that had the binary
https://www.sbcl.org/platform-table.html

scroll to the top, and download the source

decompress the source
bzip2 -cd sbcl-2.4.10-source.tar.bz2 | tar xvf -

intsall qlot
curl -L https://qlot.tech/installer | sh


you should get this :
The executable script is located at '/home/dat/.qlot/bin/qlot'.
To make it runnable by your shell, please add '/home/dat/.qlot/bin' to '$PATH'.

    export PATH="/home/dat/.qlot/bin:$PATH"

Enjoy!


add qlot to path.  for bash, add the following to your .bashrc
export PATH="/home/dat/.qlot/bin:$PATH"

then source it
source ~/.bashrc

for fish, add the folloming to your fish config.fish
fish_add_path /home/dat/.qlot/bin

then source it
source ~/.config/fish/config.fish

clone lem wherever you want.  i did in the Downloads folder
git clone https://github.com/lem-project/lem.git

cd to lem
cd lem/

run git pull to update.  i got
Already up to date.

run make to build lem
make sdl2-ncurses

got error
/home/dat/.cache/common-lisp/sbcl-2.4.10-linux-x64/home/dat/Download
s/lem/.qlot/dists/quicklisp/software/cffi-20241012-git/libffi/libffi
-types__grovel.c:12:7: warning: unused variable ‘autotype_tmp’ [-Wun
used-variable]
   12 |   int autotype_tmp;
      |       ^~~~~~~~~~~~
...
; /home/dat/.cache/common-lisp/sbcl-2.4.10-linux-x64/home/dat/Downlo
ads/lem/.qlot/dists/quicklisp/software/cffi-20241012-git/libffi/libf
fi-types__grovel /home/dat/.cache/common-lisp/sbcl-2.4.10-linux-x64/
home/dat/Downloads/lem/.qlot/dists/quicklisp/software/cffi-20241012-
git/libffi/libffi-types__grovel.grovel-tmp.lisp
...While evaluating the form starting at line 1, column 0
  of #P"/home/dat/Downloads/lem/scripts/build-sdl2-ncurses.lisp":

debugger invoked on a CFFI:LOAD-FOREIGN-LIBRARY-ERROR in thread
#<THREAD tid=92643 "main thread" RUNNING {1000C20003}>:
  Unable to load any of the alternatives:
   ("libSDL2_ttf-2.0.so.0" "libSDL2_ttf")

type exit to exit
exit

install sdl2_ttf
sudo pacman -S sdl2_ttf

rerun make
make sdl2-ncurses

got error
.....................................While evaluating the form start
ing at line 1, column 0
  of #P"/home/dat/Downloads/lem/scripts/build-sdl2-ncurses.lisp":

debugger invoked on a CFFI:LOAD-FOREIGN-LIBRARY-ERROR in thread
#<THREAD tid=94034 "main thread" RUNNING {100DB38003}>:
  Unable to load any of the alternatives:
   ("libSDL2_image-2.0.so.0" "libSDL2_image")

type exit to exit
exit

install sdl2_image
sudo pacman -S sdl2_image

rerun make
make sdl2-ncurses

got error
debugger invoked on a PACKAGE-LOCKED-ERROR in thread
#<THREAD tid=95618 "main thread" RUNNING {1000B88003}>:
  Lock on package LEM/BUFFER/INTERNAL violated when
  removing local nickname LINE for #<PACKAGE "LEM/BUFFER/LINE"> whil
e in
  package COMMON-LISP-USER.
See also:
  The SBCL Manual, Node "Package Locks"


enter 0 to continue and ignore package locks.  i had to do it twice

it works now.  run lem
./lem

to run the sdl version
./lem -i sdl2

put lem on your path.  if you use bash, add the following to your .bashrc
export PATH="/home/dat/Downloads/lem:$PATH"

source your .bashrc
source ~/.bashrc

if you use fish, add the following to your config.fish
fish_add_path /home/dat/Downloads/lem

source it
source ~/.config/fish/config.fish

now you can run lem
lem

or if you want the sdl version
lem -i sdl2