Compiling errors (AGAIN!)

[GabrielAnacletoBaumgartner]

Ok, i've been trying to compile a custom X11-nividia Lakka build for 5 DAYS! And i'm still getting errors.

I already had issues compiling the system but now i made a few changes.

I edited the name, logo, splash and options file in the Lakka-LibreELEC/distributions/Lakka, v4 and v5. But even before editing i was getting errors. If this is my environment's fault, you should provide the "install all dependencies" script, after all the Readme.MD is COMPLETELY OUTDATED.

Note the compiling errors i'm getting are consistent even with no modifications (simply just cloned and compiled) to the previous mentioned files.

Basically what i added to the options was this:

  EXCLUDE_LIBRETRO_CORES+=" stella2014 mednafen_lynx atari800"
  #Atari
  EXCLUDE_LIBRETRO_CORES+=" hbmame mame2000 mame2003 mame2003_midway mame2003_plus mame2009 mame2010 mame2015 mame2016"
  #Arcade
  EXCLUDE_LIBRETRO_CORES+=" mednafen_pce_fast mednafen_supergrafx quasi88 np2kai nekop2"
  #NECpcEngine
  EXCLUDE_LIBRETRO_CORES+=" desmume2015"
  #DS
  EXCLUDE_LIBRETRO_CORES+=" quicknes bnes emux_chip8 emux_gb emux_nes emux_sms fceumm fixnes"
  #NES
  EXCLUDE_LIBRETRO_CORES+=" snes9x2002 snes9x2005 snes9x2005_plus snes9x2010 bsnes2014_accuracy bsnes2014_balanced bsnes2014_performance bsnes_cplusplus98 bsnes_hd_beta bsnes bsnes_mercury_accuracy bsnes_mercury_balanced bsnes_mercury_performance mednafen_snes mednafen_supafaust higan_sfc_balanced higan_sfc mesen-s"
  #SNES
  EXCLUDE_LIBRETRO_CORES+=" sameboy tgbdual gearboy meteor fixgb gambatte tempgba vba_next vbam mednafen_gba"
  #GBA
  EXCLUDE_LIBRETRO_CORES+=" dosbox_core dosbox dosbox_pure dosbox_svn_ce dosbox_svn minivmac gpsp mu px68k x1 81 fuse theodore cap32 crocods puae2021 puae uae4arm vice_x128 vice_x64 vice_x64sc vice_xcbm2 vice_xcbm5x0 vice_xpet vice_xplus4 vice_xscpu64 vice_xvic"
  #RetroOS
  EXCLUDE_LIBRETRO_CORES+=" genesis_plus_gx_wide picodrive gearsystem"
  #Genesis
  EXCLUDE_LIBRETRO_CORES+=" race"
  #Neogeo
  EXCLUDE_LIBRETRO_CORES+=" cannonball craft prboom nxengine dinothawr mrboom xrick"
  #Singlecores
  EXCLUDE_LIBRETRO_CORES+=" tyrquake vitaquake2-rogue vitaquake2-xatrix vitaquake2-zaero vitaquake2 vitaquake3 boom3 boom3_xp gong opentyrian pascal_pong"
  #GameClone
  EXCLUDE_LIBRETRO_CORES+=" openlara chailove ecwolf ecwolf puzzlescript jumpnbump lowresnx lutro reminiscence scummvm superbroswar tic80 vaporspec vitavoyager wasm4 easyrpg cruzes"
  #GameEngine
  EXCLUDE_LIBRETRO_CORES+=" mpv ffmpeg pocketcdg gme moonlight"
  #Multimedia

This way it would remove the cores i won't use. And yes, i inserted these lines before # exclude some cores at build time
The changes to the name and to the icons/splash is purely due to aesthetics (and i don't know how it could affect compiling)

With Lakka v5.x i get errors at step 258:

�[1;31mCLEAN�[0m      mame
    �[1;31m*�[0m      �[0;31mRemoving /home/gabriellaptop/Lakka-LibreELEC/build.DreamOS-Generic.x86_64-5.0-devel/build/mame-1808a1cc4bf9148505bc97a3f392b55e6121993c ...�[0m
    �[1;31m*�[0m      �[0;31mRemoving /home/gabriellaptop/Lakka-LibreELEC/build.DreamOS-Generic.x86_64-5.0-devel/qa_checks/mame-* ...�[0m
�[1;36mUNPACK�[0m      mame
    �[1;32mAPPLY PATCH �[1;37m(common)�[0m�[0m      packages/lakka/libretro_cores/mame/patches/mame-crosscompile.patch
patching file 3rdparty/genie/build/gmake.linux/genie.make
patching file 3rdparty/genie/src/host/scripts.c
Hunk #1 succeeded at 147 with fuzz 1.
patching file scripts/toolchain.lua
Hunk #1 succeeded at 335 (offset -363 lines).
    �[1;32mAPPLY PATCH �[1;37m(common)�[0m�[0m      packages/lakka/libretro_cores/mame/patches/mame-remove-bgfx.patch
patching file Makefile.libretro
Hunk #1 succeeded at 79 with fuzz 2 (offset 24 lines).
patching file scripts/genie.lua
Hunk #1 succeeded at 437 with fuzz 1 (offset 50 lines).
patching file scripts/src/3rdparty.lua
Hunk #1 FAILED at 1249.
Hunk #2 FAILED at 1433.
2 out of 2 hunks FAILED -- saving rejects to file scripts/src/3rdparty.lua.rej
patching file scripts/src/main.lua
Hunk #1 FAILED at 380.
1 out of 1 hunk FAILED -- saving rejects to file scripts/src/main.lua.rej
*********** FAILED COMMAND ***********
patch -d "${PKG_BUILD}" -p1 < ${i} 1>&${VERBOSE_OUT}
**************************************
*********** FAILED COMMAND ***********
${SCRIPTS}/unpack "${PKG_NAME}" "${PARENT_PKG}"
**************************************
*********** FAILED COMMAND ***********
${SCRIPTS}/build "${1}" "${PARENT_PKG}"
**************************************
�[1;31mFAILURE: scripts/install mame:target has failed!�[0m

With Lakka v4.x i get errors at step 8 (but the log file is 9, for some reason):

�[1;36mGET�[0m      m4 (archive)
--2023-09-07 18:48:05--  http://ftpmirror.gnu.org/m4/m4-1.4.18.tar.bz2
Resolving ftpmirror.gnu.org (ftpmirror.gnu.org)... 2001:470:142:5::200, 209.51.188.200
Connecting to ftpmirror.gnu.org (ftpmirror.gnu.org)|2001:470:142:5::200|:80... connected.
HTTP request sent, awaiting response... 302 Moved Temporarily
Location: http://mirror.keystealth.org/gnu/m4/m4-1.4.18.tar.bz2 [following]
--2023-09-07 18:48:06--  http://mirror.keystealth.org/gnu/m4/m4-1.4.18.tar.bz2
Resolving mirror.keystealth.org (mirror.keystealth.org)... 2001:470:1:863::110:2, 184.105.240.111
Connecting to mirror.keystealth.org (mirror.keystealth.org)|2001:470:1:863::110:2|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 1516964 (1.4M) [application/x-bzip2]
Saving to: '/home/gabriellaptop/LakkaV4/sources/m4/m4-1.4.18.tar.bz2'


          /home/gab   0%[                    ]       0  --.-KB/s               
         /home/gabr   2%[                    ]  40.92K   204KB/s               
        /home/gabri   4%[                    ]  73.67K   183KB/s               
       /home/gabrie   7%[>                   ] 103.92K   172KB/s               
      /home/gabriel  14%[=>                  ] 213.92K   264KB/s               
     /home/gabriell  28%[====>               ] 428.67K   421KB/s               
    /home/gabriella  47%[========>           ] 709.17K   582KB/s               
   /home/gabriellap  68%[============>       ]   1008K   701KB/s               
  /home/gabriellapt  89%[================>   ]   1.29M   809KB/s               
/home/gabriellaptop 100%[===================>]   1.45M   866KB/s    in 1.7s    

2023-09-07 18:48:08 (866 KB/s) - '/home/gabriellaptop/LakkaV4/sources/m4/m4-1.4.18.tar.bz2' saved [1516964/1516964]

    �[1;32mINFO�[0m      Calculated checksum: 6640d76b043bc658139c8903e293d5978309bf0f408107146505eca701e67cf6
�[1;36mUNPACK�[0m      m4
    �[1;32mAPPLY PATCH �[1;37m(common)�[0m�[0m      packages/devel/m4/patches/fix-compilation-with-glibc-2.28.patch
patching file lib/fflush.c
Hunk #2 succeeded at 72 with fuzz 1.
patching file lib/fpending.c
Hunk #1 succeeded at 32 with fuzz 1.
patching file lib/fpurge.c
patching file lib/freadahead.c
Hunk #1 succeeded at 25 (offset -5 lines).
patching file lib/freading.c
patching file lib/fseeko.c
patching file lib/stdio-impl.h
    �[1;33mFIXCONFIG�[0m      /home/gabriellaptop/LakkaV4/build.DreamOS-Generic.x86_64/build/m4-1.4.18/build-aux/
�[1;33mBUILD�[0m      m4 �[1;37m(host)�[0m
    �[1;35mTOOLCHAIN�[0m      configure (auto-detect)
Executing (host): /home/gabriellaptop/LakkaV4/build.DreamOS-Generic.x86_64/build/m4-1.4.18/configure --host=x86_64-linux-gnu --build=x86_64-linux-gnu --prefix=/home/gabriellaptop/LakkaV4/build.DreamOS-Generic.x86_64/toolchain --bindir=/home/gabriellaptop/LakkaV4/build.DreamOS-Generic.x86_64/toolchain/bin --sbindir=/home/gabriellaptop/LakkaV4/build.DreamOS-Generic.x86_64/toolchain/sbin --sysconfdir=/home/gabriellaptop/LakkaV4/build.DreamOS-Generic.x86_64/toolchain/etc --libexecdir=/home/gabriellaptop/LakkaV4/build.DreamOS-Generic.x86_64/toolchain/lib --localstatedir=/home/gabriellaptop/LakkaV4/build.DreamOS-Generic.x86_64/toolchain/var --disable-static --enable-shared gl_cv_func_gettimeofday_clobber=no --target=x86_64-libreelec-linux-gnu
configure: WARNING: unrecognized options: --disable-static, --enable-shared
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /usr/bin/mkdir -p
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checking for /home/gabriellaptop/LakkaV4/build.DreamOS-Generic.x86_64/toolchain/bin/host-gcc option to accept ISO Standard C... (cached) none needed
configure: autobuild project... GNU M4
configure: autobuild revision... 1.4.18
configure: autobuild hostname... gabriellaptop
configure: autobuild timestamp... 20230907T214821Z
checking for unsigned long long int... yes
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checking if the linker (ld) is GNU ld... yes
checking for shared library run path origin... done
checking for libsigsegv... no, consider installing GNU libsigsegv
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checking whether frexp works... (cached) yes
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checking for max_align_t... (cached) yes
checking whether NULL can be used in arbitrary expressions... (cached) yes
checking which flavor of printf attribute matches inttypes macros... system
checking for strchrnul... yes
checking whether strchrnul works... yes
checking for working strerror function... yes
checking for working strndup... yes
checking for working strnlen... yes
checking for strsignal... yes
checking whether strsignal always returns a string... yes
checking whether strstr works in linear time... yes
checking whether strstr works... (cached) yes
checking whether strtod obeys C99... yes
checking for nlink_t... (cached) yes
checking for ptrdiff_t... yes
checking for vasprintf... yes
checking for vasprintf... (cached) yes
checking for ptrdiff_t... (cached) yes
checking for waitid... yes
checking whether mbrtowc handles incomplete characters... (cached) guessing yes
checking whether mbrtowc works as well as mbtowc... (cached) guessing yes
checking whether wcrtomb return value is correct... guessing yes
checking whether iswcntrl works... yes
checking for towlower... yes
checking for wctype_t... yes
checking for wctrans_t... yes
checking for stdint.h... (cached) yes
checking for a traditional french locale... (cached) none
checking for a french Unicode locale... (cached) none
checking for a traditional french locale... (cached) none
checking for a turkish Unicode locale... none
checking for closedir... yes
checking for dirfd... yes
checking whether dirfd is declared... yes
checking whether dirfd is a macro... no
checking whether dup works... yes
checking whether fdopen sets errno... yes
checking for flexible array member... yes
checking for getpagesize... yes
checking whether getpagesize is declared... yes
checking whether INT32_MAX < INTMAX_MAX... yes
checking whether INT64_MAX == LONG_MAX... yes
checking whether UINT32_MAX < UINTMAX_MAX... yes
checking whether UINT64_MAX == ULONG_MAX... yes
checking where to find the exponent in a 'double'... (cached) word 1 bit 20
checking where to find the exponent in a 'float'... (cached) word 0 bit 23
checking where to find the exponent in a 'long double'... unknown
checking whether link obeys POSIX... yes
checking for setlocale... yes
checking for uselocale... yes
checking for getlocalename_l... no
checking for a traditional french locale... (cached) none
checking for a french Unicode locale... (cached) none
checking for a traditional japanese locale... (cached) none
checking for a transitional chinese locale... (cached) none
checking for a french Unicode locale... (cached) none
checking for mmap... (cached) yes
checking for MAP_ANONYMOUS... yes
checking for mmap... (cached) yes
checking for MAP_ANONYMOUS... yes
checking for a traditional french locale... (cached) none
checking for a french Unicode locale... (cached) none
checking for opendir... yes
checking for putenv compatible with GNU and SVID... yes
checking for mmap... (cached) yes
checking for MAP_ANONYMOUS... yes
checking for mmap... (cached) yes
checking for MAP_ANONYMOUS... yes
checking for readdir... yes
checking whether setenv validates arguments... yes
checking for a traditional french locale... (cached) none
checking for a french Unicode locale... (cached) none
checking for a traditional japanese locale... (cached) none
checking for a transitional chinese locale... (cached) none
checking whether sleep is declared... yes
checking for working sleep... yes
checking for working stdalign.h... yes
checking for mmap... (cached) yes
checking for MAP_ANONYMOUS... yes
checking for mmap... (cached) yes
checking for MAP_ANONYMOUS... yes
checking whether symlink handles trailing slash correctly... yes
checking for unsetenv... yes
checking for unsetenv() return type... int
checking whether unsetenv obeys POSIX... yes
checking for a traditional french locale... (cached) none
checking for a french Unicode locale... (cached) none
checking for a traditional japanese locale... (cached) none
checking for a transitional chinese locale... (cached) none
checking whether wctob works... guessing yes
checking whether wctob is declared... yes
checking whether an open file can be renamed... yes
checking if changeword is wanted... no
checking which shell to use for syscmd... /bin/sh
checking if malloc debugging is wanted... no
checking that generated files are newer than configure... done
configure: creating ./config.status
config.status: creating Makefile
config.status: creating doc/Makefile
config.status: creating lib/Makefile
config.status: creating src/Makefile
config.status: creating tests/Makefile
config.status: creating checks/Makefile
config.status: creating examples/Makefile
config.status: creating lib/config.h
config.status: linking /home/gabriellaptop/LakkaV4/build.DreamOS-Generic.x86_64/build/m4-1.4.18/GNUmakefile to GNUmakefile
config.status: executing depfiles commands
config.status: executing stamp-h commands
configure: WARNING: unrecognized options: --disable-static, --enable-shared
Executing (host): make 
make[1]: Entering directory '/home/gabriellaptop/LakkaV4/build.DreamOS-Generic.x86_64/build/m4-1.4.18/.x86_64-linux-gnu'
make  all-recursive
make[2]: Entering directory '/home/gabriellaptop/LakkaV4/build.DreamOS-Generic.x86_64/build/m4-1.4.18/.x86_64-linux-gnu'
Making all in .
make[3]: Entering directory '/home/gabriellaptop/LakkaV4/build.DreamOS-Generic.x86_64/build/m4-1.4.18/.x86_64-linux-gnu'
make[3]: Nothing to be done for 'all-am'.
make[3]: Leaving directory '/home/gabriellaptop/LakkaV4/build.DreamOS-Generic.x86_64/build/m4-1.4.18/.x86_64-linux-gnu'
Making all in examples
make[3]: Entering directory '/home/gabriellaptop/LakkaV4/build.DreamOS-Generic.x86_64/build/m4-1.4.18/.x86_64-linux-gnu/examples'
make[3]: Nothing to be done for 'all'.
make[3]: Leaving directory '/home/gabriellaptop/LakkaV4/build.DreamOS-Generic.x86_64/build/m4-1.4.18/.x86_64-linux-gnu/examples'
Making all in lib
make[3]: Entering directory '/home/gabriellaptop/LakkaV4/build.DreamOS-Generic.x86_64/build/m4-1.4.18/.x86_64-linux-gnu/lib'
  GEN      alloca.h
  GEN      configmake.h
  GEN      c++defs.h
  GEN      arg-nonnull.h
  GEN      warn-on-use.h
  GEN      limits.h
  GEN      unused-parameter.h
  GEN      spawn.h
  GEN      stdio.h
  GEN      stdlib.h
  GEN      string.h
  GEN      sys/stat.h
  GEN      sys/time.h
  GEN      sys/types.h
  GEN      sys/wait.h
  GEN      time.h
  GEN      unistd.h
  GEN      wchar.h
  GEN      wctype.h
  GEN      fcntl.h
  GEN      langinfo.h
  GEN      locale.h
  GEN      math.h
  GEN      signal.h
make  all-am
make[4]: Entering directory '/home/gabriellaptop/LakkaV4/build.DreamOS-Generic.x86_64/build/m4-1.4.18/.x86_64-linux-gnu/lib'
  CC       gl_avltree_oset.o
  CC       binary-io.o
  CC       c-ctype.o
  CC       c-stack.o
In file included from /usr/include/signal.h:328,
                 from ./signal.h:52,
                 from /home/gabriellaptop/LakkaV4/build.DreamOS-Generic.x86_64/build/m4-1.4.18/lib/c-stack.c:49:
/home/gabriellaptop/LakkaV4/build.DreamOS-Generic.x86_64/build/m4-1.4.18/lib/c-stack.c:55:26: error: missing binary operator before token "("
   55 | #elif HAVE_LIBSIGSEGV && SIGSTKSZ < 16384
      |                          ^~~~~~~~
/home/gabriellaptop/LakkaV4/build.DreamOS-Generic.x86_64/build/m4-1.4.18/lib/c-stack.c:107:1: warning: 'die' defined but not used [-Wunused-function]
  107 | die (int signo)
      | ^~~
make[4]: *** [Makefile:1910: c-stack.o] Error 1
make[4]: Leaving directory '/home/gabriellaptop/LakkaV4/build.DreamOS-Generic.x86_64/build/m4-1.4.18/.x86_64-linux-gnu/lib'
make[3]: *** [Makefile:1674: all] Error 2
make[3]: Leaving directory '/home/gabriellaptop/LakkaV4/build.DreamOS-Generic.x86_64/build/m4-1.4.18/.x86_64-linux-gnu/lib'
make[2]: *** [Makefile:1572: all-recursive] Error 1
make[2]: Leaving directory '/home/gabriellaptop/LakkaV4/build.DreamOS-Generic.x86_64/build/m4-1.4.18/.x86_64-linux-gnu'
make[1]: *** [Makefile:1528: all] Error 2
make[1]: Leaving directory '/home/gabriellaptop/LakkaV4/build.DreamOS-Generic.x86_64/build/m4-1.4.18/.x86_64-linux-gnu'
�[1;31mFAILURE: scripts/build m4:host during make_host (default)�[0m
*********** FAILED COMMAND ***********
make ${PKG_MAKE_OPTS_HOST}
**************************************
�[1;31mFAILURE: scripts/build m4:host has failed!�[0m

I'm trying to build it with Ubuntu 22.04, running KDE. It's a laptop, 4GB RAM ddr3 1066MHz, 240GB SSD, Core 2 Duo T9900. I really would like to help with Lakka's development, but i can't help if i can't even compile it out of the box.

[metchebe]

For building Lakka-4.x use Ubuntu Focal (20.04).

Also I suggest doing a test build with only one core with CUSTOM_LIBRETRO_CORES=2048 to check that the base system is OK first.

[GabrielAnacletoBaumgartner]

For building Lakka-4.x use Ubuntu Focal (20.04).

Also I suggest doing a test build with only one core with CUSTOM_LIBRETRO_CORES=2048 to check that the base system is OK first.

1. Why can't i build Lakka 4.x on latest Ubuntu, and why this is not in the compiling guide?
2. Does the same rule apply to Lakka 5.x?

[GabrielAnacletoBaumgartner]

@metchebe I installed Ubuntu (20.04) in a VM to compile lakka 4 and this is what i got this when installing the required to compile packages:

[metchebe]

Why are you trying to install those packages? The script should take care of that for you.

What instructions are you following? They might be wrong.

[GabrielAnacletoBaumgartner]

@metchebe What script? Lakka's script??? It simply never installed dependencies for me! I had to search and found this post

And i found a NEW ISSUE!!! AAAAAAAAAAAAAAAAAAAHHHHHHH!!!!!!!!! (Rage) WHY COMPILING THIS SYSTEM IS SO HARD?!

I started to compile the Lakka v4 in a virtual machine. I downgraded libncurses-dev (i had forgotten this one).

As you can see, XZ Utils repository is not working. I tried to download it manually and IS INDEED OFF

[metchebe]

Alright. Take a break and let me get to my computer (tomorrow perhaps) to give you some pointers.

I've built 4.x and 5.x very recently and they do work.

[metchebe]

OK there's a lot to go through so I will try to respond to everything, but not necessarily in order.

1. My experience is building Lakka for Raspberry Pi 3 on Ubuntu. I have not built Lakka for PC x86_64 so I am not familiar with problems that might be specific to that target.

2. I assume you have a working installation of Ubuntu, 22.04 for Lakka 5.x and 20.04 for Lakka 4.x. The older version is required for 4.x because the version of the m4 package that ships with 4.x does not build with the newer glibc version in Ubuntu 22.04. Note that instead of a VM you can use a docker container, which I recommend IF you know how to use docker.

3. The base command that I understand you should be using is DISTRO=Lakka PROJECT=Generic DEVICE=x11 ARCH=x86_64 make image. This will also check and install any dependencies you may need. I would ignore any indication to install other dependencies. At most, it might be useful to install build-essential beforehand but I don't think it's necessary. Also I don't understand why you had issues with apt finding packages, seems like you forgot to update the repository or something.

4. Your issue with 5.x seems to be an outdated patch for mame, I would simply exclude it for now. So after ARCH=x86_64 add CUSTOM_LIBRETRO_CORES='core1 core2 core3 ...' where the cores are the ones you want to include (you don't need to edit files). As I said before, I suggest building first with only CUSTOM_LIBRETRO_CORES=2048 to make a test build.

5. Optionally, before building you can run ./libretro_update.sh to update retroarch and/or the cores before building. This way you can have up-to-date retroarch and cores on 4.x and 5.x. In your case I would only do this after you have made a couple of successful builds, since updated cores might need fixes.

[GabrielAnacletoBaumgartner]

OK there's a lot to go through so I will try to respond to everything, but not necessarily in order.

1. My experience is building Lakka for Raspberry Pi 3 on Ubuntu. I have not built Lakka for PC x86_64 so I am not familiar with problems that might be specific to that target.

2. I assume you have a working installation of Ubuntu, 22.04 for Lakka 5.x and 20.04 for Lakka 4.x. The older version is required for 4.x because the version of the `m4` package that ships with 4.x does not build with the newer glibc version in Ubuntu 22.04. Note that instead of a VM you can use a docker container, which I recommend IF you know how to use docker.

3. The base command that I understand you should be using is `DISTRO=Lakka PROJECT=Generic DEVICE=x11 ARCH=x86_64 make image`. This will also check and install any dependencies you may need. I would ignore any indication to install other dependencies. At most, it might be useful to install `build-essential` beforehand but I don't think it's necessary. Also I don't understand why you had issues with apt finding packages, seems like you forgot to update the repository or something.

4. Your issue with 5.x seems to be an outdated patch for `mame`, I would simply exclude it for now. So after `ARCH=x86_64` add `CUSTOM_LIBRETRO_CORES='core1 core2 core3 ...'` where the cores are the ones you want to include (you don't need to edit files). As I said before, I suggest building first with only `CUSTOM_LIBRETRO_CORES=2048` to make a test build.

5. Optionally, before building you can run `./libretro_update.sh` to update retroarch and/or the cores before building. This way you can have up-to-date retroarch and cores on 4.x and 5.x. In your case I would only do this after you have made a couple of successful builds, since updated cores might need fixes.

Hello. It's me again.

I tried doing what you said with Lakka 4, ./libretro_update.sh to update all the cores, with clean unmodded git clone.
Then i used the command:

DISTRO=Lakka PROJECT=Generic ARCH=x86_64 DEVICE=x11 CUSTOM_LIBRETRO_CORES='2048' make image

As you can see above It simply tried to compiled with 139 cores even with the command. Not just 2048. After I even tried modding the options file (with "EXCLUDE_LIBRETRO_CORES+=" to reduce it to something around 74) but the result was the same.

But again, i have a faulty repository:

ERROR 404 means link is down... I will have to wait but i would like to understand why CUSTOM_LIBRETRO_CORES is not working.

[metchebe]

@GabrielAnacletoBaumgartner your Lakka options file seems to be modified. I can tell because line 377 does not match, see https://github.com/libretro/Lakka-LibreELEC/blob/Lakka-v4.x/distributions/Lakka/options

[GabrielAnacletoBaumgartner]

@GabrielAnacletoBaumgartner your Lakka options file seems to be modified. I can tell because line 377 does not match, see https://github.com/libretro/Lakka-LibreELEC/blob/Lakka-v4.x/distributions/Lakka/options

Ok... Original options file now.
This command DISTRO=Lakka PROJECT=Generic DEVICE=x11 ARCH=x86_64 CUSTOM_LIBRETRO_CORES=2048 make image

[metchebe]

@GabrielAnacletoBaumgartner I checked and DEVICE=x11 is only available on Lakka-5.x. In fact I tried to use the command on 4.x and it failed immediately with There are no devices for project: Generic.

You got a totally different error so it seems that you are using still using modified or mixed Lakka-4.x code.

I will reiterate that I do not have experience building for Generic and x11, but it seems to me now that Lakka-5.x (which also does not use the driver that gave you issues) is probably the easiest way to do it. Please use a clean codebase, since using edited or mixed code makes it difficult to distinguish between issues in Lakka and issues caused by edited code.

[GabrielAnacletoBaumgartner]

@GabrielAnacletoBaumgartner I checked and DEVICE=x11 is only available on Lakka-5.x. In fact I tried to use the command on 4.x and it failed immediately with There are no devices for project: Generic.

You got a totally different error so it seems that you are using still using modified or mixed Lakka-4.x code.

I will reiterate that I do not have experience building for Generic and x11, but it seems to me now that Lakka-5.x (which also does not use the driver that gave you issues) is probably the easiest way to do it. Please use a clean codebase, since using edited or mixed code makes it difficult to distinguish between issues in Lakka and issues caused by edited code.

I'm sorry i didn't make it clear: the last screenshot i tried to compile Lakka 5. Indeed i got confuse, it's been more than i week trying to compile this "thing". It's been really stressful and i am using two computer to try speed up the compiling process.

I'm trying a v4 Generic non X11 build only with one core now to see if this "thing" works properly, but as you have more experience than me... Could confirm what are the commands to build Lakka 4 and 5 with X11 (Nvidia Drivers)?

AND why `CUSTOM_LIBRETRO_CORES=2048 does not work properly (not sure if it was clean Lakka v4 or clean Lakka v5)?

[metchebe]

Could confirm what are the commands to build Lakka 4 and 5 with X11 (Nvidia Drivers)?

There is no command for Lakka 4, I believe you would have to edit the source code. For Lakka 5 it should be the one I indicated. As far as I can tell there is no official support or test build (yet) for Lakka-5.x on X11, so you might in fact be the first to try! Also I am not certain that this will install the nvidia drivers you require.

AND why `CUSTOM_LIBRETRO_CORES=2048 does not work properly (not sure if it was clean Lakka v4 or clean Lakka v5)?

As I stated, this happened because the options file had a syntax error because of incorrect editing, so it was not clean.

[GabrielAnacletoBaumgartner]

Could confirm what are the commands to build Lakka 4 and 5 with X11 (Nvidia Drivers)?

There is no command for Lakka 4, I believe you would have to edit the source code. For Lakka 5 it should be the one I indicated. As far as I can tell there is no official support or test build (yet) for Lakka-5.x on X11, so you might in fact be the first to try! Also I am not certain that this will install the nvidia drivers you require.

AND why `CUSTOM_LIBRETRO_CORES=2048 does not work properly (not sure if it was clean Lakka v4 or clean Lakka v5)?

As I stated, this happened because the options file had a syntax error because of incorrect editing, so it was not clean.

1. What??? Really? So why there's an official release of 2.2 Nvidia Lakka? The reason why i'm trying to compile a new version myself is this official version is very, very, VERY old and lacks a lot of features i want.

I'm clearly not the first one to try (I know, not the same repository). I need nvidia drivers because i want to build an arcade with 1600x1200 screen and need CRT-Royale to run flawlessly (i bought GT1030 just for it). Plus i have a few ideas of themes i will build (if I manage to understand this system).

2. If i need to compile an Nvidia v4 Lakka should i follow this guide?

3. Tried to compile Lakka v4, 100% clean. This DISTRO=Lakka PROJECT=Generic ARCH=x86_64 CUSTOM_LIBRETRO_CORES=2048 make image and it compiled flawlessly. But i cannot see any IMG/ISO file. What should i do?

Note: I've never compiled a system before, just a few repositories, with clear (almost "noob" certified) guides.

[metchebe]

What??? Really? So why there's an official release of 2.2 Nvidia Lakka?

It says right there, experimental build.

I'm clearly not the first one to try

Yeah, I specifically meant using DEVICE=x11, which comes directly from LibreELEC-11. As they say, it's for Legacy Generic PC (for older PCs and NVIDIA GPUs). Maybe you should try the LibreELEC build, just to see how it works with your hardware (Link).

If i need to compile an Nvidia v4 Lakka should i follow this guide?

Seems way to old to work in 4.x. I wouldn't waste my time with this.

But i cannot see any IMG/ISO file. What should i do?

The output is in the target folder, you need the .img.gz file