Need help with writing install script

Unknown

@mitu
Well, that's not good. Is there another way to get it?

mitu

You could install it manually from source, and remove the dependency in the scriptmodule. During compilation, if needed, MelonDS will find it and use it.

Unknown

This post is deleted!

Unknown

@mitu I t appeears that "libslirp-dev" is avaliable for ubuntu.

@mitu said in Need help with writing install script:

What error do you get and where ? The depends functions looks ok, but the build part doesn't look correct - there's no melon-ds folder present in the source repository.

Forgive me for asking, but what would you sugguest I replace:

md_ret_require="$md_build/melonDS/src/frontend/libretro/melonDS_libretro.so"

with?

mitu

@unknown said in Need help with writing install script:

@mitu I t appeears that "libslirp-dev" is avaliable for ubuntu.

Yes, but only starting with Ubuntu 20.04 and it's not available for the platform you're trying to install it (Debian Buster).

Forgive me for asking, but what would you sugguest I replace:
md_ret_require="$md_build/melonDS/src/frontend/libretro/melonDS_libretro.so"
with?

Not sure what you're trying to do here - does MelonDS have a Libretro core that should appear at that location ? Because in the src/frontend folder, as present in the project's repository, there's no libretro folder.

My advice would be to try to compile and use the emulator without resorting to RetroPie's scriptmodules, just following the project's installation instructions. This way you can test it's working, before resolving any issues that may appear in the scriptmodule.

Unknown

@mitu I just relized that I wasn't cloning from the libretro core on github. Here is the current install script.

#!/usr/bin/env bash

# This file is part of The RetroPie Project
#
# The RetroPie Project is the legal property of its developers, whose names are
# too numerous to list here. Please refer to the COPYRIGHT.md file distributed with this source.
#
# See the LICENSE.md file at the top-level directory of this distribution and
# at https://raw.githubusercontent.com/RetroPie/RetroPie-Setup/master/LICENSE.md
#

rp_module_id="lr-melonDS"
rp_module_desc="NDS/DSI emu requries bios and firmware from DS/DSI port for libretro"
rp_module_help="ROM Extensions: .nds .zip\n\nCopy your Nintendo DS/DSI roms to $romdir/nds"
rp_module_licence="GPL2 https://github.com/libretro/melonDS/blob/master/LICENSE"
rp_module_section="exp"
#rp_module_flags="!all 64bit"

function _params_lr-melonDS() {
    local params=()
    isPlatform "arm" && params+=("platform=armvhardfloat")
    isPlatform "aarch64" && params+=("melonDS_JIT=0")
    echo "${params[@]}"
}

function depends_lr-melonDS() {
    getDepends cmake libcurl4-gnutls-dev libpcap0.8-dev libsdl2-dev qtbase5-dev qtdeclarative5-dev 
}

function sources_lr-melonDS() {
    gitPullOrClone "$md_build" https://github.com/libretro/melonDS.git
}

function build_lr-melonDS() {
    cd melon-ds/src/frontend/libretro
    make clean
    make $(_params_lr-melonDS)
    #md_ret_require="$md_build/melonDS/src/frontend/libretro/melonDS_libretro.so"
}

function install_lr-melonDS() {
    md_ret_files=(
        'melonDS/src/frontend/libretro/melonDS_libretro.so'
    )
}

function configure_lr-melonDS() {
    mkRomDir "nds"
    ensureSystemretroconfig "nds"

    addEmulator 0 "$md_id" "nds" "$md_inst/melonDS_libretro.so"
    addSystem "nds"
}

I still have to find the melonDS_libretro.so file, but this is progress!

Unknown

Here is a link to my logfile:
https://github.com/Python-retropie-raspberry-pi-hobby/3/blob/main/README.md

mitu

@unknown As I said, try to install the emulator first without the RetroPie script, including compilation, and see which steps are needed to compile and configure it.

Unknown

@mitu I will look into that, in the meantime here is the latest version of the install script.

#!/usr/bin/env bash

# This file is part of The RetroPie Project
#
# The RetroPie Project is the legal property of its developers, whose names are
# too numerous to list here. Please refer to the COPYRIGHT.md file distributed with this source.
#
# See the LICENSE.md file at the top-level directory of this distribution and
# at https://raw.githubusercontent.com/RetroPie/RetroPie-Setup/master/LICENSE.md
#

rp_module_id="lr-melonDS"
rp_module_desc="NDS/DSI emu requries bios and firmware from DS/DSI melonDS port for libretro"
rp_module_help="ROM Extensions: .nds .zip\n\nCopy your Nintendo DS/DSI roms to $romdir/nds"
rp_module_licence="GPL2 https://github.com/libretro/melonDS/blob/master/LICENSE"
rp_module_section="exp"
rp_module_flags="!all 64bit"

function _params_lr-melonDS() {
    local params=()
    isPlatform "arm" && params+=("platform=armvhardfloat")
    isPlatform "aarch64" && params+=("melonDS_JIT=0")
    echo "${params[@]}"
}

function depends_lr-melonDS() {
    getDepends cmake libcurl4-gnutls-dev libpcap0.8-dev libsdl2-dev qtbase5-dev qtdeclarative5-dev 
    git clone https://github.com/virtualsquare/libvdeslirp.git 
    cd bin
    make -j8
    sudo make install
}

function sources_lr-melonDS() {
    gitPullOrClone "$md_build" https://github.com/libretro/melonDS.git
}

function build_lr-melonDS() {
    cd melon-ds/src/frontend/libretro
    make clean
    make $(_params_lr-melonDS)
    #md_ret_require="$md_build/lr-melonDS/src/frontend/libretro/melonDS_libretro.so"
}

function install_lr-melonDS() {
    md_ret_files=(
        'lr-melonDS/src/frontend/libretro/melonDS_libretro.so'
    )
}

function configure_lr-melonDS() {
    mkRomDir "nds"
    ensureSystemretroconfig "nds"

    addEmulator 0 "$md_id" "nds" "$md_inst/melonDS_libretro.so"
    addSystem "nds"
}

I'm getting the feeling that this emulator will not work for 32bit.

Unknown

@mitu I've located a arm64bit version, but I haven't run it yet because apparently DSI bios isn't accepted. Also here are the compiling steps.

#Linux:

    Install dependencies: sudo apt install cmake libcurl4-gnutls-dev libpcap0.8-dev libsdl2-dev qt5-default libslirp-dev libarchive-dev libepoxy-dev
    Download the melonDS repository and prepare:

git clone https://github.com/Arisotura/melonDS
cd melonDS
mkdir build && cd build

   # Compile:

mkdir -p build
cd build
cmake ..
make -j$(nproc --all)

Any suggestions?

Unknown

ok melonDS now offers a arm64 linux build which means it should work when retropie has a 64bit version. unfortunately we will have to wait until then for DSi

Unknown

@mitu Could you move this to “ideas and development “ please?