Do I need to overwrite d3-linux.hog?

[Jayman2000]

The README that I need to replace Descent 3’s main executable with the one that gets built by CMake. It looks like CMake also puts a file at builds/linux/d3-linux.hog. Do I need to replace my existing d3-linux.hog file with this new d3-linux.hog file? For context, the copy of Descent 3 that I’m using is the Linux version that’s currently on Steam.

[JeodC]

Haven't tried it. According to d3linuxfullhog.txt that file contains all the libraries needed to run the game. Therefore, since you're mixing 32bit and 64bit libraries, you should use d3-linux.hog I assume.

[JeodC]

Yes, if you hadn't I would have corrected you.

[Jayman2000]

OK. I disagree with your conclusion that I would be mixing 32-bit and 64-bit code. Specifically, I disagree that compiling the code in this repo produces a 32-bit executable and 32-bit libraries. I’m sure that in some circumstances it will do that, but when I run cmake --build, it produces a 64-bit executable and 64-bit libraries:

file command output:

$ file builds/linux/Descent3/Debug/Descent3 builds/linux/scripts/Debug/*.so
builds/linux/Descent3/Debug/Descent3:            ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /nix/store/anlf335xlh41yjhm114swi87406mq5pw-glibc-2.38-44/lib/ld-linux-x86-64.so.2, for GNU/Linux 3.10.0, with debug_info, not stripped
builds/linux/scripts/Debug/aigame2.so:           ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/AIGame3.so:           ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/aigame4.so:           ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/AIGame.so:            ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/barney.so:            ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/BatteriesIncluded.so: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/BossCamera.so:        ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/CanyonsCTF.so:        ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/CellTestLevel.so:     ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/ChrisTest.so:         ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/clutter.so:           ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/GameGauge.so:         ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/generic.so:           ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/Geodomes.so:          ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/HalfPipe.so:          ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/InfernalBolt.so:      ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/Inversion.so:         ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/LEVEL0.so:            ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/level10.so:           ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/level11.so:           ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/Level12.so:           ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/level13.so:           ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/level14.so:           ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/LEVEL15.so:           ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/Level16.so:           ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/level17.so:           ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/level1.so:            ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/level2.so:            ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/level3.so:            ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/level4.so:            ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/level5.so:            ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/Level6.so:            ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/level7.so:            ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/level8.so:            ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/Level9.so:            ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/LevelS1.so:           ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/levelS2.so:           ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/Merc02.so:            ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/Merc1.so:             ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/Merc3.so:             ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/Merc4.so:             ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/merc5.so:             ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/Merc6.so:             ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/Merc7.so:             ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/myPowerHouse.so:      ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/Mysterious_Isle.so:   ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/orbital.so:           ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/Paranoia.so:          ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/PiccuStation.so:      ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/Polaris.so:           ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/Quadsomniac.so:       ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/RudeAwakening.so:     ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/SewerRat.so:          ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/testscript.so:        ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/TrainingMission.so:   ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
builds/linux/scripts/Debug/Y2K.so:               ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped
$ 

[JeodC]

That's something @winterheart or @Lgt2x might have to take a peek at. I was under the impression that compilers were being forced to compile 32bit code.

[Arcnor]

No, currently Linux & Mac generate 64 bit code, Windows is being forced to 32 bits for now. That said, 64 bit code is still not completely functional, not sure what might break, but people are working on it...

[winterheart]

Currently CI builds 64-bit executables and d3-linux.hog. In order to build 32-bit you need add -DBITS=-m32 to cmake configure command.

[bryanperris]

So from Steam I downloaded D3, and made a copy of the entire directory into a new path: $HOME/Descent3

I let cmake output the linux hog file into there, then after compilation, I also copy the generated executable to there which is named "Descent3". I am able to get the game running and start a mission. There are crash issues related to audio required so I had comment out some code as a workaround, you can find those in my fork under linux-fixes branch.

[Jayman2000]

Now that this PR has been merged, the README clearly says that you need to “Copy all of the new engine files”, not just the executable. Additionally, CMake now puts everything that you need into a single folder, rather than putting Descent3 in one location and d3-linux.hog in a different location.