Cannot build lr-easyrpg due to cmake requirement (3.18+) on Buster

[cmdrscotty]

Describe the bug
lr-easyrpg requires Cmake 3.18+ but Buster only allows Cmake 3.16 from Apt

To Reproduce
Steps to reproduce the behavior:

1. select lr-easyrpg (and easyrpg-player) to be available for install
2. attempt to build lr-easyrpg from source
3. error out
4. check error log, note it states Cmake 3.18+ is required.

Expected behavior
Either list it cannot be installed on Buster, or script in to built Cmake 3.18 from source. (unfortunately might be something to disable this until Bullseye is eventually released)

Device (please complete the following information):

• Pi Zero 2 W (Pi 3 equivalent)
• RetroPi 4.8 (Buster)

Additional context
Relevant part of error log:

= = = = = = = = = = = = = = = = = = = = =
Building 'lr-easyrpg' : RPG Maker 2000/2003 engine - EasyRPG Player interpreter port for libretro.
= = = = = = = = = = = = = = = = = = = = =

CMake Error at CMakeLists.txt:1 (cmake_minimum_required):
  CMake 3.18 or higher is required.  You are running version 3.16.3


-- Configuring incomplete, errors occurred!
Error: could not find CMAKE_PROJECT_NAME in Cache
Could not successfully build lr-easyrpg - RPG Maker 2000/2003 engine - EasyRPG Player interpreter port for libretro. (/home/pi/RetroPie-Setup/tmp/build/lr-easyrpg/build/easyrpg_libretro.so not found).
/home/pi/RetroPie-Setup

Also of note, it isn't too hard to build Cmake 4.0.1 on the Pi Zero 2 W, just takes about 12 hours to do so

1. Download source file: https://github.com/Kitware/CMake/releases/download/v4.1.1/cmake-4.1.1.tar.gz
2. Remove current version of Cmake (sudo apt remove cmake)
3. extract downloaded Cmake, enter folder and set up build env (./bootstrap)
4. make: make -j$(nproc) <- this is where it took about 12 hours to complete.
5. install: sudo make install
6. reboot

you now have Cmake 4.0.1 installed.
as a precaution, also remove cmake from the easyrpg-player.sh requirements so it doesn't try to reinstall 3.16

[Exarkuniv]

1. thank you for filling this out, most people dont.
3. thanks for pointing this out. For now i will make it only install on newer OS, since its not me who it making the requierment of the higher cmake. that is coming from the devs of the program

[cmdrscotty]

I will say it is possible with the right pre-reqs satisfied to get it to build. I may take a look into writing up scripts to be included into the Retropie-Extras library to facilitate the pre-reqs. Took me a while to make it work but managed to get everything compiled for the pre-reqs then everything else followed suit just fine.

so far seems it'll need:

Cmake 3.18+ (4.0.1 works just fine)
SDL2 2.28.x (dependencies needed from this that weren't available in the pre-built sdl2 lib in Retropie currently)
Liblcf 0.8.0+ (Easyrpg-player installs this for itself, but LR-easyrpg freaks out if it doesn't find it in a systempath. Not hard to do from source with a script)

[Ghabry]

note that CMake also provides precompiled packages. Though not sure if they work on ARM. Easiest way to install them is via python pip: pip install cmake.