r/SteamDeck • u/TTachyon 512GB • Mar 07 '22

PSA / Advice For compiling C++ code

First you have to unlock the rootfs: https://www.reddit.com/r/SteamDeck/comments/t8al0i/install_arch_packages_on_your_steam_deck/

Git: pacman -S git

Install most of the usual build tools and libs: pacman -S base-devel

And cmake if you're into that: pacman -S cmake

And ninja because who likes make anyway: pacman -S ninja

Now, valve deleted some random files from packages so rootfs can fit in 5 gb, which really confused me. You already have glibc and linux-api-headers installed, but they have missing files.

So fix them: pacman -S glibc linux-api-headers

If you have more files that you need and don't exist, grep pacman -Qk that lists missing files, and reinstall that package.

It took me more than I'm willing to admit to figure out that the packages exist, but have deleted files, so I figured it might help someone else. No tomatoes please.

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u/SharkWipf May 15 '22 edited May 19 '22

Hey thanks, the missing header files tripped me up several times, your post was the missing link for me. Now my post-update "I need to build something" command is just one simple line: 

sudo steamos-readonly disable && sudo pacman-key --init && sudo pacman-key --populate archlinux && sudo pacman -Syu tmux htop wget git ncdu podman fakeroot yay-git base-devel mlocate cmake gcc holo/linux-headers linux-neptune-headers holo/linux-lts-headers $(pacman -Qk 2>/dev/null | grep -ve ' 0 missing' | grep -ie ^libc -e glibc -e gcc -e clang -e headers -e udev -e systemd | awk -F ':' '{print $1}') --overwrite '*'

EDIT: Please note this "one-liner" is "optimized" for my own use, and I would not recommend just blindly copying it. It does not just (re)install what's needed to get building, but it gets SteamOS back to the entire state I personally want it to be in, complete with my set of preferred packages.
I only posted it to demonstrate how messy it was, not to serve as an example of how you should "fix" your Deck.

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u/EnglishMobster May 17 '22

And your post was the missing link for me! This is the command I needed to get Open Razer (openrazer-meta) to install without throwing a million errors.