Compiling using libretro-super

https://docs.libretro.com/development/retroarch/compilation/3ds/

1. Clone libretro-super

   git clone https://github.com/libretro/libretro-super.git
   

2. Build a core

   1. Fetch the core

      ./libretro-fetch.sh fceumm
      

      (Replace fceumm with the name of the core you want to build)

   2. Build the core

      cd libretro-super
      docker run --rm -v "$PWD:/build" devkitpro/devkitarm sh -c "cd /build; ./libretro-build-ctr.sh fceumm"
      

      (Replace fceumm with the name of the core you want to build)

3. Build Salamander

   1. Fetch RetroArch

      From libretro-super:

      ./libretro-fetch.sh retroarch
      cd retroarch
      

   2. (Optional) Fetch the latest tag

      From libretro-super/retroarch:

      git checkout v1.10.3
      

   3. Build RetroArch

      From libretro-super/retroarch:

      docker run --rm -v "$PWD:/build" --network=host devkitpro/devkitarm sh -c "cd /build; make -f Makefile.ctr.salamander USE_CTRULIB_2=1 DEBUG=1"
      

      (Remove DEBUG=1 here and elsewhere in this page for a production build, or if you want to test performance)

4. Build RetroArch

   1. Copy the core

      From libretro-super/retroarch:

      cp ../dist/ctr/fceumm_libretro_ctr.a libretro_ctr.a
      

      (Replace fceumm_libretro_ctr.a based on the core you built)

   2. (Optional) Enable the console

      The bottom screen can display the RetroArch logs; to do this, edit Makefile.ctr:

      CONSOLE_LOG             = 1
      

      ⚠ This currently doesn’t work due to https://github.com/libretro/RetroArch/issues/13973

   3. Build RetroArch

      From libretro-super/retroarch:

      docker run --rm -v "$PWD:/build" --network=host devkitpro/devkitarm sh -c "cd /build; make -f Makefile.ctr USE_CTRULIB_2=1 DEBUG=1"
      

5. Install

   1. The salamander CIA will be at libretro-super/retroarch/retroarch_3ds_salamander.cia. You can remotely install it (or remotely run the retroarch_3ds.3dsx file) using the instructions here: 3DS debugging

   2. Copy the core CIA at libretro-super/retroarch/retroarch_3ds.cia to /retroarch/cores on the SD card