sphalerite changed the topic of #nixos to: NixOS stable: 19.03 \o/ https://discourse.nixos.org/t/nixos-19-03-release/2652 || https://nixos.org || Latest NixOS: https://nixos.org/nixos/download.html || Latest Nix: https://nixos.org/nix/download.html || Logs: https://logs.nix.samueldr.com/nixos/ || #nixos-dev, #nix-darwin, #nixos-aarch64, #nixos-chat, #nixcon ... nixcon videos: https://tinyurl.com/nixcon2018
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<{^_^}> Channel nixpkgs-18.09-darwin advanced to https://github.com/NixOS/nixpkgs/commit/a483713a0e8 (from 2 hours ago, history: https://channels.nix.gsc.io/nixpkgs-18.09-darwin)
<jtojnar> worldofpeace: do we wait for someone who understands linker or just merge the hack and hope someone will fix it in the future?
<{^_^}> #60869 (by jtojnar, 8 hours ago, open): libredirect: do not redirect dlopen by default
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<worldofpeace> jtojnar: We know so far that it has only cased issues for sublime3 right?
<jtojnar> yeah, but there are some other proprietary apps which might suffer from the same issue
<pie_> grepping stderr is a lot nicer ever since i learned about |&
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<worldofpeace> I really do hope you get a response to https://forum.sublimetext.com/t/how-is-dlopen-called-by-sublime-text/43998 eventually and then we could get a proper fix. I think disabling it is perfectly reasonable, and if we can't find someone to look at it within a few days I think we should just merge it. I tried to figure out the issue and didn't get further than you did.
<pie_> worldofpeace, how much of an answer does one need to "how"
<pie_> is sublime text hard to disassemble? xD
<pie_> strace? xD
<jtojnar> strace is weird
<pie_> #8alternatively, who wants to deal with that i guess)
<worldofpeace> yeah pie_ these aren't fun issues :)
<jtojnar> and I am too lazy to try to read asm
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<{^_^}> Channel nixpkgs-19.03-darwin advanced to https://github.com/NixOS/nixpkgs/commit/918b4e294fe (from 2 hours ago, history: https://channels.nix.gsc.io/nixpkgs-19.03-darwin)
<worldofpeace> exactly. measure time to achieve goal vs current lazyness. sometimes either are too high so the hacks don't seem to bad
<pie_> i might be crazy enough to give it a shot, no guarantees ill get anywhere though
<pie_> ok maybe ill wait for the post to age a little more though xD
<pie_> current annoyance: app provides an interface for overriding a config option, the app fails before you can override the config
<pie_> i want to override the config because the default value is wrong on nixos
<pie_> chicken-egg problem
<blackriversoftwa> angerman: made a pr for the bzip thing
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<clever> pie_: libredirect?
<aanderse> manveru: both are supported, didn't want to push people onto the 4.x series immediately
<pie_> clever, the "current annoyance" was at something totally unrelated
<aanderse> manveru: i should drop the 3.x version in master now, thanks for reminding me
<pie_> oh s*** i just realized ghidra exists now
<pie_> how hard could it be to find something useful in the decompilation view :p
<pie_> unless sublime has some sort of anti crack protection or something
<pie_> hypothetically we arent limited to disassembly listings anymore
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<angerman> blackriversoftwa: great. I won’t get around to it until Monday though :-(
<blackriversoftwa> angerman: that's fine. I am working forward from a local clone anyway.
<blackriversoftwa> angerman: is there an easy way to jailbreak packages?
<blackriversoftwa> Apparently the `process` package is jailbroken for stackage but that didn't carry over to stack-to-nix
<angerman> blackriversoftwa: that cabalJailbreak stuff? Yes. You want to set the `doExactConfig` option to true for that package.
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<{^_^}> Channel nixos-19.03-small advanced to https://github.com/NixOS/nixpkgs/commit/918b4e294fe (from 2 hours ago, history: https://channels.nix.gsc.io/nixos-19.03-small)
<angerman> blackriversoftwa: if you use lts-13 or so, the process and some other package (I think tranasformsers) are wrong in the stackage snapshot.
<{^_^}> commercialhaskell/stackage#4466 (by phadej, 3 weeks ago, open): Metadata contains wrong version for LTS-13.16 for transformers and process packages
<blackriversoftwa> angerman: Yeah I'm trying to use the latest lts (13.19)
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<blackriversoftwa> angerman: Ah that explains it. Pretty simple matter to just bump those in the stack.yaml I'm working from until that issue is resolved
<angerman> blackriversoftwa: I think if you set the extra-deps in the stack.yaml file to match that should solve it. Yep
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<blackriversoftwa> angerman: now I'm being treated to the soothing sound of a CPU fan as this build runs. Thanks for your help :)
<angerman> blackriversoftwa: any feedback on what could be done better is much welcome :-)
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<{^_^}> Channel nixos-18.09-small advanced to https://github.com/NixOS/nixpkgs/commit/a483713a0e8 (from 2 hours ago, history: https://channels.nix.gsc.io/nixos-18.09-small)
<blackriversoftwa> angerman: I'm writing issues as we speak
<{^_^}> Channel nixos-unstable-small advanced to https://github.com/NixOS/nixpkgs/commit/edc032b56e0 (from 2 hours ago, history: https://channels.nix.gsc.io/nixos-unstable-small)
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<samueldr> off-topic: ⚠️ hey, peeps, might want to disable firefox sync for now, or not start firefox for now if it's not started, there seems to be something going on with firefox syncing
<samueldr> (not a nixos issue)
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<aanderse> samueldr: :( i just noticed
<aanderse> my firefox just freaked out on me
<aanderse> unfortunately this might be the last straw...
<samueldr> :(
<aanderse> i hate google chrome because it isn't firefox, but my crappy work laptop chugs with firefox
<aanderse> i tried google chrome and my cpu usage is down to nothing compared to what it was
<aanderse> browsing is so much faster
<aanderse> but i *hate* chrome!
<samueldr> I'm a bit worried, considering all the "neat-o" alternatives like qupzilla and such are surely less secure than using the big bois browsers, due to the small time devs not being able to commit the security effort
<samueldr> (understandably)
<ivan> why do you hate chrome? (Chromium?)
<aanderse> ivan: simply because it isn't firefox
<aanderse> ha ha ha
<jackdk_> Probably not trusting the big G, or its influence on web "standards"
<aanderse> jackdk_: yeah those are true too... but not the reason i hate chrome
<samueldr> I personally am fine with chrome, I practice browser agnosticity by using both chrome and firefox on different computers I use daily (work/personal)
<samueldr> but so want to be able to keep using multiple
<samueldr> also → #nixos-chat for further non-nixos talk (got pulled in too!)
<aanderse> what do you use for bookmark+tab sync?
<aanderse> ....
<jackdk_> (you're not in nixos-chat) I don't. I have different piles of tabs on different machines.
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<worldofpeace> where does share/devhelp/references get multi outputed into devdoc?
<pie_> jtojnar, $ ldd /nix/store/mzvpsafinyrs7mp4jb6951rixgsbj5f0-sublimetext3-3176/bin/sublime3
<pie_> not a dynamic executable
<pie_> jtojnar, how does that even get stuff like dlopen??
<jtojnar> it is wrapper of a wrapper of an executable
<pie_> ugh, sorry sorry wrong file
<pie_> dumb mistake
<pie_> much better: /nix/store/rbs0sn2lhd94gy1hhvx32si8fdy8s5kp-sublimetext3-3176-bin/.sublime_text-wrapped: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked
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<gchristensen> I love this community so much, you are all really great, let's continue being amazing
<aanderse> :D
<jtojnar> worldofpeace: in multiple-outputs.sh, I think
<worldofpeace> jtojnar: yeah only 'share/devhelp/books` gets `_multioutDocs`. probably should add `references` to that?
<jtojnar> sounds good
<pie_> gchristensen, \o/ :3
<samueldr> in case users here aren't in #nixos-chat, there is a temporary solution in setting xpinstall.signatures.required to false; extension data should be safe if you haven't removed them
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<pie_> wait is this me digging in program code https://imgur.com/gallery/4Z22btl :p
<clever> pie_: :D
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<rrr> Hello
<rrr> Any idea what option should I add, to some *kernelModules, to be able to mount a raid1 logical volume?
<rrr> I'm trying everything I see around, without understanding much. And since I don't see errors while nixos-rebuilding, I reboot every time to check, and nothing works so far
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<rrr> Where's a list of the possible kernel modules btw?
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<clever> rrr: lvm?, mdadm?
<rrr> lvm
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<clever> rrr: lvm is always available in the initrd
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<clever> rrr: what is your configuration.nix and what is the error it has?
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<nh2> jtojnar: what did you mean with "Dependency changes described in release notes do not affect us"? I didn't understand that
<rrr> I made a mirrorred thing. Maybe I did it wrong. But it's not activated, and when I try to `lvchange --activate y /dev/stuff`, the message I get is that can't process, "raid1 target support missing from kernel?"
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<clever> [root@amd-nixos:~]$ find -L /run/booted-system/kernel-modules | grep dm-raid
<clever> /run/booted-system/kernel-modules/lib/modules/4.14.104/kernel/drivers/md/dm-raid.ko.xz
<jtojnar> pie_: hmm, that is what we are doing in the test but LD_PRELOAD works there
<rrr> My configuration.nix, regarding kernelModules, is volatile. I'm just trying permutations of good looking strings, in kernelModules, availableKernelModules, initrd.kernelMo, initrd.availableKe...
<clever> rrr: you may want boot.initrd.availableKernelModules = [ "dm-raid" ];
<pie_> jtojnar, i have no idea whats going on
<rrr> clever: tried that
<rrr> I'll keep it in
<rrr> but there's something else missing
<clever> rrr: lvm will activate on its own, so you shouldnt need to lvchange -a y
<pie_> jtojnar, you also patched openat in the same patch? (not sure)
<jtojnar> nh2: I meant that all the dependencies that were mentioned in the NEWS as removed, we did not use before
<rrr> clever: All the other lvm drives are activated. It's just this one, which is the only one mirrorred
<clever> /run/booted-system/kernel-modules/lib/modules/4.14.104/kernel/drivers/md/dm-mirror.ko.xz
<clever> rrr: then maybe you want dm-mirror ?
<jtojnar> pie__: I tried removing everything but dlopen from libredirect and the issue still persisted
<pie_> ok
<rrr> I'll try that out
<pie_> jtojnar, can you think of any way i can help
<rrr> clever: is there a place where you are browsing the kernel modules to try?
<clever> rrr: the find command i gave above
<jtojnar> pie_: I have no idea how to proceed any more
<rrr> AHh, missed it
<jtojnar> just looking for ideas
<rrr> clever: thanks
<rrr> rebooting
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<pie_> jtojnar, so theres sublime3, and theres this rewrite library which overrides some stuff via ld_preload, and the sublime crashes with preload set?
<pie_> jtojnar, youve removed everything but the dlopen override?
<pie_> and sublime doesnt output the "failed to load" string
<clever> pie_: ive noticed before, that chromium will deadlock if libredirect is in place
<jtojnar> pie_: it just quits since it cannot find the libraries
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<pie_> its not intel PIN i suppose :P (some sort of instrumentation library)
<jtojnar> pie_: it prints it for some libraries sometimes :-P
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<rrr> Still doesn't work
<pie_> jtojnar, disclaimer: im not super familiar with this stuff
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<rrr> The find command is indeed finding both dm-raid.ko.xz and dm-mirror.ko.xz
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<clever> rrr: run both `modinfo dm-raid` and `modinfo dm-mirror`, then read the descriptions
<pie_> this is the code that references one of the screenshotted functions, not quite sure whats going on https://bpaste.net/show/83a49d5d29ba , dunno what the "possible overlap" means either
<pie_> jtojnar, any idea what the first lib that fails is
<rrr> device mapper raid 1/2/... target and device mapper mirror targe
<rrr> They do seem to be what I need
<rrr> pehaps there's another problem.
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<rrr> I'll try recreating the disks. They shouldn't have data anyway
<rrr> I mean the lv
<jtojnar> pie_: it always starts with cairo
<nh2> jtojnar: the gstreamer on Darwin drives me nuts. It now fails with
<nh2> Any idea how thi spath `VideoToolbox/VideoToolbox.h` should work with that?
<nh2> /System/Library/Frameworks/VideoToolbox.framework/Headers/VideoToolbox.h
<nh2> On the system it appears to be in
<nh2> even though I have a `darwin.apple_sdk.frameworks.VideoToolbox` dependency.
<nh2> ` fatal error: 'VideoToolbox/VideoToolbox.h' file not found`
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<pie_> jtojnar, do you know if we should be overriding dlsym as well? i imagine not since it takes a dlopen handle
<pie_> and that seems abstract enough
<jtojnar> pie_: that is my thinking as well
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<nh2> does include path resolution work somehow differently on Darwin, so that `VideoToolbox/VideoToolbox.h` is supposed to work even though `VideoToolbox.h` isn't in a directory called `VideoToolbox`?
<jtojnar> nh2: maybe it is another gstreamer bug
<pie_> jtojnar, my completely wild guess is this is going to be some arcane low level problem but idk :D
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<rrr> I'll try with mdadm instead. Never did software raid before
<nh2> jtojnar: I thought so too, but many projects have `#include <VideoToolbox/VideoToolbox.h>` in the source code, including ffmpeg and so on
<jtojnar> nh2: or it was there previously and MacOS update moved it
<jtojnar> sorry, I do not really know much about darwin
<pie_> jtojnar, can you maybe make a reproducing single nix file that i can repro locally with
<jtojnar> pie_: I tried creating libredirect testcase for dlopen but there it works fine
<pie_> jtojnar, i meant with sublime
<jtojnar> pie_: just nix-build -A sublime3-dev on master will work
<pie_> im no low level expert but i dont see anything obviously wrong yet :I figured i could try throwing gdb at it too
<pie_> the only path i see that doesnt hit the error message is where it succeeds at opening the dll but maybe fails to load a symbol
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<nh2> jtojnar: yea me neither, I think closed source OS are silly. I just got into fixing the Darwin because it looked like a low hanging fruit and would be cool if more people could use my gstreamer low-latency screen sharing pipeline. And now I got myself into that :o
<pie_> but i could have misread
<pie_> jtojnar, bit confused here though, man page says dlopen is a void function DAT_00ae8690 = dlopen("libcairo.so",1);
<pie_> maybe its a disassembler artefact but that return value looks like it gets used as a status flag so i dont get it
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<pie_> well my C isnt that great, its actually of void pointer type so i guess it returns a pointer
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<clever> void *dlopen(const char *filename, int flag);
<clever> void *dlsym(void *handle, const char *symbol);
<clever> pie_: dlopen returns a special handle, and you must then pass that to dlsym to lookup symbols in the lib
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<pie_> clever, makes sense
<{^_^}> Channel nixos-18.09 advanced to https://github.com/NixOS/nixpkgs/commit/a483713a0e8 (from 4 hours ago, history: https://channels.nix.gsc.io/nixos-18.09)
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<nh2> jtojnar: there must be some special thing about it, because `<Cocoa/Cocoa.h>` also doesn't exist this way on the file system, but that one was found in the nix build after I added the Cocoa dep. Will investigate more
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<pie_> jtojnar, they dont seem to properly check the error condition of a symbol load: https://bpaste.net/show/aef1fd7c95d8 line 20 t o22
<jtojnar> pie_: yeah, they assume the symbol cannot be NULL
<pie_> jtojnar, the man page im reading says it can be so you have to use dlerror
<jtojnar> which can be reasonable for symbols they want to call
<pie_> ahh wait
<pie_> but it should fall through and still print the error message
* pie_ scratches head
<jtojnar> yup
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<pie_> ok got the master version installed now
<jtojnar> pie_: this is the biggest head-scratcher for me https://github.com/NixOS/nixpkgs/issues/60807#issuecomment-488876868
<pie_> jtojnar, i get a bunch of unable to load messages
<pie_> jtojnar, what does rewrite do
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<jtojnar> rewrite replaces the path with its counterpart from NIX_REWRITES env var
<pie_> jtojnar, is rewrite a native libc function or is it something we added
<pie_> because it could collide with something else if its something we added?
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<jtojnar> in case of libcairo.so, it returns the original path
<jtojnar> pie_: it is `static const char * rewrite(const char * path, char * buf)`
<pie_> jtojnar, my first message is Unable to load cairo_clip from libcairo.so which matches the first thing in this list https://bpaste.net/show/83a49d5d29ba
<jtojnar> so it should not collide with anything
<pie_> you said its not even getting that far?
<jtojnar> pie_: no, I am getting the same thing
<pie_> oh ok
<pie_> that means its at least trying
<pie_> jtojnar, seems to match the list perfectly
<jtojnar> pie_: one difference I noticed is that strace shows different set of directories
<pie_> jtojnar, running the loading code *is* conditional on DAT_00ae8698
<pie_> i havent decided if its just a "ive loaded this alreday" flag yet (because im slow :P)
<jtojnar> that's what I would guess
<pie_> because right after the check it goes and sets it to 1
<jtojnar> from the snipper
<jtojnar> s/snipper/snippet/
<pie_> but if it gets it as 1 already then *shrug* wouldnt make much sense though
<clever> pie_: it could be a generic load function, that is ran from many places
<clever> and should only act once
<pie_> clever, thats what i figured
<pie_> the static analysis shows that area as the only code that it can see as writing to that variable so i guess all known things point to it being fine
<pie_> jtojnar, so either all the dlopen results are 0
<pie_> jtojnar, or all the dlsyms are 0
<pie_> jtojnar, can you confirm?
<jtojnar> I would expect the dlsyms to be fine if the library was opened correctly
<pie_> you can just printf the calls in your code for testing or something right?
<jtojnar> so would expect dlopen to fail as strace cannot finde the file
<pie_> could you explain that last part?
<jtojnar> yup, going to try now
<pie_> printf-trace ALL THE THINGS
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<pie_> i mean there is an LD_SOMETHINGOROTHER flag to just show load attempts i think
<clever> pie_: yep
<clever> LD_DEBUG i think
<clever> google knows
<pie_> clever, perfect
<teto> is it possible to specify a hash to builtins.fetchGit ? had no internet yesterday and I tried to change ttl options (btw tarball-ttl is not mentioned in man nix.conf)/setup a hash to use the source in cash but couldn't :'(
<jtojnar> pie_: an idea, is sublime's runpath not inherited by ld_preloaded libraries?
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<pie_> heres some snippets i get from that: https://bpaste.net/show/ba30fb91b116
<jtojnar> pie_: that would explain the different set of searched directories
<pie_> jtojnar, you have to explain more or give me a bit to process
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<jtojnar> previously, sublime called `dlopen(libcairo.so)` and dynamic linker used sublime's rpath to find the library
<jtojnar> now we call dlopen in our ld_preloaded libredirect, which has a different rpath, not containing `${cairo}/lib`, thus unable to find cairo
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<pie_> the dynamic linker uses rpath for libraries?
<pie_> oh huge derp, of course it does
<pie_> jtojnar, thats a very reasonable sounding hypothesis
<jtojnar> now, how do we inherit sublime's rpath?
<pie_> my next question besides testing would be how does it know if its being called from libredirect or from sublime
<pie_> not quite the right question but
<pie_> jtojnar, i started typing rpath ld_preload and google started suggesting things so this sounds very suspiciously on the right track
<jtojnar> I guess some ELF magic, but that is outside my expertise
<pie_> or not lol, ld preload and rpath being mentioned in the same context isnt such a hard thing to do
<pie_> jtojnar, in the interim, can you write a test to get the rpath?
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<dtz> lol I just posted about it the rpath/etc. thing. In short, LD_PRELOAD intercepting dlopen() is difficult to get right and really really is not something you wnt to be responsible for unless your hobby project is literally writing a new dynamic linker or so
<pie_> maybe you could have the preloaded library check what executable its running on, have it patchelf itself with the new rpath, and load itself again :D
<pie_> dtz, also how the heck do you know about this :p
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<dtz> TBH I really am skeptical that most programs do any of this in an intentional manner, since there are a number of edge cases unspecified and in the end they almost certainly kludged it until it stopped crashing and shipped it :P. Not sure I blame them, it's such a complete mess, and not many oracles really beyond "what does this implementation do" re:reasoning about what any of it should do
<pie_> jtojnar, i forgot what the problem to solve was
<dtz> i.... research these things, for reasons I am not sure were sound and often regret. ;P.
<pie_> dtz, please indulge my curiosity :P
<pie_> im thinking maybe malware people do something we can use
<dtz> however deep you think the rabbit hole is, it's probably much much worse
<pie_> yeah i have 10 glibc tabs open
<jtojnar> dtz: I guess we will only intercept absolute paths in dlopen, for our sanity
<pie_> im not sure this was a good idea
<dtz> starting resources are drepper's DSO document-- read that and see how things evolved, helps things make sense.
<gchristensen> dtz: glad to have you here with us :)
<jtojnar> since that is enough for networkmanager
<pie_> dtz, though i mean im curious how *you* got into this :p
<pie_> this looks like a good doc, also the name sounds familiar for some reason
<dtz> one of the best books on such, "Linkers and Loaders" has a joke in the preface about how it's really a funny situation as the book's audience is essentially the same 4 people interested at the level of such. Err, that's not quite right sorry I'm gonna get some food/caffeine and maybe find my copy ;).
<jtojnar> I think I have it somewhere, still
<dtz> yeah the dsohowto.pdf . It is not... an expalnation of how things work. Generally that's not really a documented situation--although i think that's largely changed "lately" (last years) so I don't mean to spread FUD. It's just a big mess, aways been a big mess, and despite being the fundamental way we compose the objects with which we build software... its entirely an undefined mess of insanity ;)
<pie_> dtz, oh i started reading that book :3
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<pie_> dtz, sounds horrible, i want to write a decompiler with a formal spec
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<pie_> autogenerating specs for random software is probably somewhere on the uncomputable bucket list
<clever> pie_: i saw something a year ago, about somebody writting the spec for a URL, purely by data from fuzzing a URL parser, lol
<pie_> jtojnar, i guess you can update https://forum.sublimetext.com/t/how-is-dlopen-called-by-sublime-text/43998 "not a sublime text problem"
<dtz> one of my favorite papers on the subject (well there aren't many) is this one:
<pie_> \o/
<dtz> Basically these guys set out to formally define semantics of the most basic linking--and they do a GREAT job! -- but $#%#@%@T
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<pie_> jtojnar, so what is the dlopen override actually supposed to do?
<dtz> (also I love it because i can cite it for the "obvious but I need to cite it" enumeration of all the ways things are bad)
<pie_> change all the calls to use the _NEXT search type?
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<pie_> dtz, i keep hearing how relocations are turing complete
<dtz> i think it's meant to let us redirect the load during build so we can work around networkmanager's dumb bootstrapping problem
<pie_> though its pretty easy to make a turing complete system so eh
<dtz> right?! and i mean, we did this to ourselves! We INVENTEED ALLL OF THIISS. and no one understands it :(. Because we have created a monster.
<dtz> :P
<pie_> and by easy i mean sigbovik has a paper on computation in 3d chess, whatever the hell tha tis
* dtz speaks of doom and such jkjk
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<dtz> well the pain is when things are unintentionally turing complete!
<dtz> lol
<pie_> something something "weird machines" (*technical term)
<clever> dtz: and some signing systems dont check the part of ELF thats turring complete :P
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<dtz> hahaa of course they don't. i mean, i don't mean to be negative-these things are hard (!!!) but surely.. maybe.... SURELY.... :P
<dtz> but neat, reading ty
<pie_> jtojnar, could we inject code into the target process to replace its own dlopen stub, so the code gets written in the right context
<pie_> *gets run
<clever> dtz: internals of ELF
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<clever> dtz: a 45 byte ELF executable
<pie_> the irony of linux "standardization"
* pie_ glances at clock 5am
<clever> this crazy guy took a windows driver, mutated it into an ELF library, and then dlopen'd it into his program
<clever> so he could debug it with gdb :P
<pie_> clever, just run it in wine tho
<pie_> :p
<pie_> oh uh kernel driver
<dtz> yeah!!!! that's awesome stuff
<clever> yep
<dtz> guys why. WHY. we're just doing it to buildthe bugger right? this is .. unnecessary, surely? :( . How does anyone else build it? gah
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<pie_> jtojnar, come back so i can throw ideas at you
<pie_> D:
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<dtz> lol halfway to building ourselves a new dynamic binary rewriter just to fix this project's build wonkiness?
<dtz> lol
<jtojnar> pie_: here
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<pie_> dtz, well thats my problem right now, i cant remember if i was ever told what problem this is supposed to fix
<pie_> or if i forgot
<pie_> jtojnar, how is the dlopen override supposed to fix the problem (in theory)
<pie_> i mean what was the original problem
<pie_> yes of course ;D <dtz> lol halfway to building ourselves a new dynamic binary rewriter just to fix this project's build wonkiness?
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<pie_> nixos has The Most Advanced Tooling TM
<jtojnar> pie_: well, I added dlopen support to libredirect so I could build introspection data of NetworkManager (they wanted to use installed path of the library during build so I needed to redirect it)
<jtojnar> but that caused issue when sublime text tried to dlopen libcairo.so (a relative path)
<pie_> how does this help with the networkmanager thing
<clever> jtojnar: what if you LD_PRELOAD a libcairo.so?
<clever> if you try to dlopen something already in scope, it just returns the existing handle
<pie_> or you could have flags for enabling/disabling dlopen overrides per project >_>
<jtojnar> clever: yeah, or sublime could use LD_LIBRARY_PATH instead of rpath
<clever> i dont think dlopen obeys rpath
<jtojnar> pie_: yeah, that is what the https://github.com/NixOS/nixpkgs/pull/60869 does
<{^_^}> #60869 (by jtojnar, 11 hours ago, open): libredirect: do not redirect dlopen by default
<pie_> oh ok
<pie_> i guess we went full circle but now we know why :P (sor tof?)
<pie_> *sort of
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<nh2> jtojnar: I think I have it: The order of these frameworks seems important for some reason. If I put CoreVideo first, it works
<nh2> matthewbauer: Do you remember why you defaulted `cocoa` to false in https://github.com/NixOS/nixpkgs/commit/b09c250435dcdcb8fd66fcb0ed701b580ca3d482 ?
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<jtojnar> pie_: yeah, now we just need to decide which solution is the least bad
<jtojnar> clever: It has to use rpath, otherwise it would not work at all
<pie_> thoguh i still find "overriding dlopen is just bad" a disappointing explanation
<day|flip> anyone having issue getting ublock origin work on firefox?
<pie_> jtojnar, wait, could this have ever worked? wont this just load the new stuff into the calling library and not the target library?
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<pie_> dtz, does each loaded ...thing...get its own import table=
<pie_> _
<pie_> * ?
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<lambda-11235> How do I set a users shell to fish since it's not in /usr/bin?
<jtojnar> pie_: I have not even thought about that, I just assumed the handle will work accross the process
<pie_> jtojnar, i didnt think about it either till just now
<day|flip> lambda-11235: to where you set your user
<pie_> jtojnar, oh but i guess that should work within a process
<pie_> jtojnar, the reason i thought about it was i was still wondering if we could have the dlopen run in the correct context
<maurer> pie_: Not applicable to sublime, but I know Glade based applications will use dlopen+dlsym to introspect on themselves and find functions to bind to buttons, since what functions are bound to what functions is specified in an xml file
<maurer> pie_: It's possible sublime is doing something similar (e.g. external data file, needs to look up symbols by string as a result)
<pie_> maurer, o/
<jtojnar> pie_: the loader is weird. For example, how does it share libraries between processes?
<pie_> jtojnar, i dont think a loader would share libraries between processes? not sure what you mean
<pie_> maurer, i guesss
<jtojnar> pie_: IIRC, it was promoted as one of the benefits of dynamic linking that each library only needs to be loaded once per system
<jtojnar> hmm, maybe mmap takes care of that
<pie_> jtojnar, libraries get loaded to different parts of the same virtual address space, but the kernel can deduplicate that somehow with memory mapping or something
<clever> pie_: the loader uses mmap to map the library into a process
<day|flip> lambda-11235: this have one more info i have not used. but might be worth it. https://www.reddit.com/r/NixOS/comments/6l3zd6/setting_zsh_as_your_default_shell/
<clever> pie_: and if 2 procs try to mmap the same region of the same file, in readonly mode, the kernel will reuse the pages
<pie_> clever, makes sense
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<clever> pie_: i think the kernel will even treat the ELF file sorta like a swap file for those pages
<maurer> jtojnar: You are partially right - on windows, special care is needed
<maurer> jtojnar: because it relocates the shared objects
<clever> pie_: so it can just drop the .text in /dev/null when low on ram, and read it back on when its next needed
<maurer> On linux though, it's as clever says. You just map the same file chunk in, and the kernel deals with it
<clever> linux also requires you to build with PIE, so it can load at a different address and not need relocations
<clever> not 100% sure what windows does/needs
<maurer> (I mostly know about the windows stuff because this at was at least previously a weakness in their ASLR)
<pie_> jtojnar, the networkmanager thing was too vague for me to get it
<maurer> (Since the same dll would be loaded at the same address in every process if possible)
<clever> maurer: *doh*
<clever> maurer: linux only suffers from a form of that via fork() for worker children
<clever> maurer: all children inherit the layout from the parent
<maurer> Yeah, that's kind of unavoidable
<maurer> well, it might be avoidable, but it would be *expensive* to avoid
<pie_> jtojnar, i mean, if stdenv has a flag to set or a package with a setuphook i guess thats fine
<pie_> jtojnar, but something something hella obscure things noone ever knows about 'xD
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<jtojnar> pie_: when NetworkManager is built, it tries to read a library in $out/lib (due to our gobject-introspection patching to absolute paths), but it is not installed yet
<jtojnar> so we need a way to make it available somehow
<jtojnar> hmm, I guess we could add a symlink in preBuild, instead of relying on libredirect
<pie_> oh, that makes some sense
<pie_> jtojnar, well yeah, ld_preload guts-fiddling sounds sketchier than a symlink
<pie_> (i think?)
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<pie_> leave the ld_preload for redirecting network requests to disk or something ;D
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<pie_> or writing portable applications that dont barf over your system or $LIST_OF_FUN_THINGS
<lambda-11235> day|flip: Thanks.
<day|flip> lambda-11235: no problem
<matthewbauer> <nh2 "matthewbauer: Do you remember wh"> nh2: not sure but might just be to avoid too many differences with linux
<nh2> matthewbauer: I tried to enable it just now and get all kinds of odd objective-c compile errors
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<pie_> jtojnar, well, dlopen handles are opaque right so it might even be possible (theoretically) that its some kind of relative value so it *wont* work with another memory blob thing
<clever> pie_: i think the handle is a pointer to the ELF header in ram
<pie_> unless the docs say otherwise somewhere
<pie_> clever, at least by this, not necessarily? https://stackoverflow.com/a/12148491 (changing handles depending on path)
<pie_> ah well i guess its not necessarily ruled out
<pie_> but im wild guessing
<pie_> and im not gonna read all the glibc code
<clever> do it!
<clever> pie_: http://dbp-consulting.com/tutorials/debugging/linuxProgramStartup.html also, look at the stuff near LD_SHOW_AUXV
<clever> AT_PHDR: 0x8048034
<clever> when linux launches an ELF binary, it passes in the address of a struct from the ELF headers
<pie_> not today i think, but im definitely keeping that link open
<pie_> clever, on a mostly unrelated note do you know of a way to get a gcc without extra flags? or does that not make sense in the context of nix
<pie_> turning hardening off seems to deal with some stuff
<pie_> but id like a simplified gcc command sometimes
<pie_> that i can maybe add to
<clever> > gcc.cc
<{^_^}> "<derivation /nix/store/zavsih1vyx8g9py64j8bgn1dj7c6sf4l-gcc-7.4.0.drv>"
<clever> that is the raw unwrapped gcc
<pie_> but will that work for me
<pie_> also thanks
<clever> depends a lot on what you want to do with it
<clever> the raw gcc wont understand buildInputs
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<pie_> i figured something like that
<pie_> clever, mostly so far ive wanted -O0 and debug symbols
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<pie_> but i guess the hardening disable seems to have been sufficient for that and dontStrip = true
<pie_> but i only figured that out like an hour ago so i havent tested it on anything else yet
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<clever> > enableDebugging hello
<rrr> Can the nix store be safely shared between NixOS and Fedora installed on different disks, same PC?
<{^_^}> "<derivation /nix/store/57xdbnc2vqhlnwlvz3bz2319hh1k1bpp-hello-2.10.drv>"
<clever> pie_: that will apply an override to the stdenv, to enable debug
<pie_> actually i guess i could give aswanson's reticulate bug another look
<pie_> clever, yeah *a* problem was that didnt seem to work with rPackages
<clever> rrr: indirect roots could become an issue if your sharing it like that
<pie_> clever, and the rpackages code looked kind of bad to me too :( couldnt figure out how to override anything, so i ended up overriding the stdenv i passed in with some stuff set in preBuild
<pie_> it was horrible and didnt work (probably because i was probably setting the wrong thing)
<rrr> I don't know what indirect roots are. I'll assume it isn't safe then to bind mount the nix store on fedora for example.
<rrr> Thanks again!
<clever> 389 enableDebugging = pkg: pkg.override { stdenv = stdenvAdapters.keepDebugInfo pkg.stdenv; };
<clever> pie_: all enableDebugging does, is change the stdenv with .override
<pie_> clever, yeah i looked at the source
<pie_> clever, ah rigt
<pie_> clever, wait wtf...why was i doing what i did then
<pie_> :D
<pie_> rpackages broke my brain
<pie_> clever, oh right
<pie_> clever, the problem is you need to apply enabledebugging to the result and not to the stdenv you pass in, because if you do it to the latter it will just get overridden
<pie_> but that doesnt sound right, because override changes the inputs *shrug*
<pie_> clever, what i actually did is override the pkgs.stdenv that gets passed in
* pie_ checks his code
<clever> if rpackages accepts a { pkgs }:, it wont care about .override { stdenv = ?; }
<pie_> yeah, i agree
<pie_> but the theory should still work
<pie_> ok so i think i did have dontstrip set correctly, but the optmization level not, so ill go peek through my code and see what i can do with my newfound stuff
<clever> also, peek at the .drv that is building the thing
<clever> nix show-derivation and nix-instantiate
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<pie_> clever, another fun thing, r doesnt use environment variables for builds, it has --config-vars --config-opts and some kind of makevars file
<pie_> guess how many of these the rpackages infra exposes
<pie_> well it does expose --config-opts
<pie_> im not even mad, mostly just lost
<clever> > pkgs.path
<{^_^}> /var/lib/nixbot/nixpkgs/master/repo
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<jtojnar> pie_: just realized the rpath hypothesis does not explain why it worked when I just called the dlopen directly without calling rewrite
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<dtz> uhhh so the results of running (likely incomplete but definitely catching real problems) this quick grep is.... discouraging: `rg '/nix/store/[0-9a-zA-Z]{32}-[^/]*/[[:alnum:]_\./-]*' /etc/ -L -o --no-filename|while read f; do [[ -e $f ]] || echo "$f"; done|less` (lol don't judge me i was just curious re:referencing paths that don't exist)
<dtz> err rg is ripgrep if that's not your jam. Likely could just use grep -r lol
<dtz> there are also a bunch of broken links QQ
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<pie_> dtz, so what does that line do
<pie_> dtz, maybe youre seeing build deps that arent runtime deps
<dtz> i'm trying to find things that "look like" complete paths from the nix store, and then check if they exist and print if they don't
<dtz> idea was from trying to help avoid mistakes that we all missed re:reviewing/shipping the sed networkmanager path thing
<{^_^}> #60903 (by dtzWill, 3 hours ago, open): networkmanager: sed from gnused, not coreutils! fix bad path
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<jtojnar> pie_: rip dlopen in librewrite https://github.com/NixOS/nixpkgs/pull/60909
<{^_^}> #60909 (by jtojnar, 47 seconds ago, open): networkmanager: Stop using libredirect for building introspection
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<pie_> jtojnar, :( it lived a short but interesting life
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<pie_> and got me digging at low level stuff and actually trying ghidra instead of just writing infrastructure for it, for once
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<pie_> jtojnar, idk if theres a point to it but id put a small post mortem somewhere
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<jtojnar> pie_: yeah, would be nice but I probably already spent more time on it than I should have
<jtojnar> and the conclusion would be just "learn how does linker work :-P"
<jtojnar> s/linker/loader/
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<jtojnar> thanks for all the help everyone
<jtojnar> sun is rising, time to hit the hay
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<pie_> my brain turns on at 2am apparently
<clever> pie_: its only 1:20 am
<pie_> but only after at least 12 hours of normal person time
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<pie_> clever, its last year somewhere in the orbit
<clever> pie_: and when thats done, https://www.youtube.com/watch?v=zJt8yzR2aoY
<pie_> damnit clever not now :D
<pie_> think ive seen the latter hehe
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<pie_> ah no not this one
<pie_> ok actually maybe yes
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<{^_^}> Channel nixpkgs-unstable advanced to https://github.com/NixOS/nixpkgs/commit/2c89c240150 (from 3 hours ago, history: https://channels.nix.gsc.io/nixpkgs-unstable)
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<lambda-11235> I'm having a couple of problems. First, when I log into a non-root user PATH does not include /run/current-system/sw/bin. Second, when I do include that path sudo gives an error?
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<clever> lambda-11235: because sudo is in /run/wrappers/bin
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<clever> lambda-11235: did you programs.fish.enable = true; ?
<lambda-11235> clever: No, I'll try that.
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<lambda-11235> Thanks, that worked.
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<pie_> so i have a question
<pie_> how does TOR fare with the firefox implosion
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<lopsided98> pie_: I heard that noscript got disabled in Tor browser
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<pie_> lopsided98, thats f***ed
<pie_> i hope this doesnt end up having have long term negative repercussions for the mozilla projects and instead leads to bette things
<pie_> :<
<jchia1> I just install NixOS 19.03 on a laptop that I'll use to learn NixOS and develop software. I'll be installing the GUI next. I haven't decided which DM to use. Is it easy/advisable to install Wayland instead of X? I'm looking for a relatively low-maintenance experience compared to X. What's the status of Wayland support?
<jchia1> The NixOS manual references services.xserver.enable for enabling X, but I can't find something that looks similar for Wayland here: https://nixos.org/nixos/options.html#wayland
<jchia1> Also, what does the option services.xserver.displayManager.gdm.wayland mean? I thought wayland is a replacement for X, so why is it under 'xserver'?
<day|flip> GNOME is still the only main DE that kind of head of thing. sway is i3 on wayland. but most wayland option. i don't know if there are any.
<day|flip> if you go with gnome. you better off using gdm
<day|flip> kde wayland. i don't know if it usable state like GNOME yet
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<pie_> given our model does that mean we basically need to push out a firefox update ASAP once the fix is out and basically end up with mass user migration to master? :P
<day|flip> are you talking about the addons bug?
<day|flip> just go to about:config and change this to false. xpinstall.signatures.required
<pie_> gee that doesnt sound sketchy at all
<pie_> but thats not the point
<pie_> im not actually affected yet
<day|flip> will im am
<day|flip> im using that for a temp work around. till fix pops up
<pie_> my question is if this needs to be fixed on a distro level or if theyll be able to push an update that we can use
<pie_> because we have immutability right, so a user cant just use the normal firefox update mechanism
<pie_> s/right/right?/
<srhb> pie_: Right.
<pie_> well ok, i guess on a theoretical level this wouldnt be any different than a security update
<srhb> No different from any update at all.
<day|flip> im not seeing a package update for firefox in nixpkgs issuse
<pie_> there isnt even a fix out yet
<day|flip> to me it seem more of a cloud fix
<pie_> i think im about to crash, ive been up all night anyway
<pie_> also ive been thinking nix needs an update nag screen like windows
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<pwnst> :q
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<maurer> pie_: god no, that defeats half the point for the non-user-software purposes
<maurer> "Hey, have you considered updating libfoo and libbar?" "Go eat a dick. I'm using nix specifically so I keep getting the same shit until *I* say it changes"
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<jomik> Can someone help me pack https://aur.archlinux.org/cgit/aur.git/tree/PKGBUILD?h=firestorm-bin for NixOS? It seems like a real pain to patch all the binaries with all those dependencies. But that may be the only real option?
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<Myrl-saki> You can use chrootenv, I guess?
<tilpner> jomik: You can always try to throw buildFHSUserEnv at your problem. Usually it works
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<jomik> tilpner: Hmm, isn't that sort of cheaty though ? :P
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<Myrl-saki> jomik: Maybe one can make a setup hook.
<Myrl-saki> I actually think there's a patchelf setup hook.
<tilpner> jomik: Yes, and it's an expensive-ish solution. For nixpkgs it should only be used when absolutely necessary, but if you just want this for yourself...
<Myrl-saki> /etc/nixos/nixpkgs/pkgs/build-support/setup-hooks/auto-patchelf.sh:1:declare -a autoPatchelfLibs
<jomik> How do I enable that tho? :O
<jomik> Ah, I think that works only for the things I move to $out.
<jomik> It is so weird, this program. Because the thing we want to execute is in `./` and it is a shell script, which sets up some variables and then runs a `./bin/do-not-run*` binary. So I don't want to actually expose the stuff in the `bin` folder
<jomik> So I can't just move it all to out..
<genesis> an easy PR to review to warmup ? #60518
<{^_^}> https://github.com/NixOS/nixpkgs/pull/60518 (by bignaux, 3 days ago, open): gweled: init at unstable-2018-02-15
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<Dema> Hi! I have a question, yesterday I fixed a bug in pygame derivation, now it's been merged to nixpkgs/master, what should I write in configuration.nix to force nix to use this derivation instead of the one in unstable channel? Tried adding this https://pastebin.com/E2t76U7E but it then fails to build another unrelated package with "wrapPython not found in buildInputs = [ curaengine python27Packages.wrapPython ];"
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<tilpner> > :p { python27Packages.pygame = 42; }
<{^_^}> { python27Packages = { pygame = 42; }; }
<tilpner> Dema: You are clearing out the rest of python*Packages
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<Dema> This makes sense.. How should I override it then?. I'm a bit lost..
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<srhb> Dema: I believe there's an example in the nixpkgs manual.
<tilpner> Naively you could do { python27Packages = pkgs.python27Packages // { inherit (nixpkgs-master.python27Packages) pygame; }; }
<srhb> Dema: Section
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<tilpner> But there sometimes are package-set specific override/extension functions, and I don't know if pythonPackages has one
<srhb> It does, each python attribute takes a packageOverrides argument in the usual self: super: { ... } form
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<srhb> (But the naive version should probably be fine for just that single override, unless needed for other python packages...)
<srhb> Dema: More generally you might also want to read the overlays section.
<jomik> How do I access autoPatchElf in my nix expression fixup phase?
<srhb> So 12.1.1 and might be good.
<srhb> jomik: Are you sure you need to do it manually? If you avoid overriding the default phases, everything should just work
<Dema> Thanks!
<srhb> jomik: (So, try to use eg. pre/postFixup instead of overriding fixupPhase)
<jomik> srhb: It only patches in $outputs >.o
<jomik> I need to touch stuff in `./lib` and `./bin` that I don't move to $out.
<jomik> At least I am not sure how I would go about moving stuff to `$out/bin` without having it show up in my path afterwards :P
<jomik> This package is weird..
<srhb> jomik: Just delete it afterwards from $out? :-P
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<jomik> But then it wont be patched? :D
<aszlig> jomik: you can do that by using autoPatchelf <file>
<jomik> No reason to patch it if I delete it ? :P
<srhb> I guess I didn't understand the question then :-P
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<jomik> it says it cannot find `autoPatchelf` aszlig
<aszlig> jomik: do you have autoPatchelfHook in nativeBuildInputs?
<jomik> I do now.. :D
<immae> hello ! I have a growing number of "collision between .. and .." in my system configuration, do I have a way to specify the wanted priority? note: I cannot modify the packages themselves, they are from nixpkgs, and added by modules I use so I cannot "avoid" the additions
<srhb> immae: You can still modify the packages via eg. overlays
<immae> is that a good solution?
<jomik> srhb: I am trying to package the `Firestorm` second life viewer. And it is quite weird.. It has a bin directory, but you are not supposed to execute anything from that. You need to run a shell script from the "root" directory... And there is a lot of things to patch.
<srhb> Possibly. Avoiding collissions in the first place is probably best, where possible.
<srhb> immae: But that's certainly a way to specify priorities.
<aszlig> jomik: so i guess it's for binaries you need to execute during the build process, right?
<immae> srhb: ok, it won’t trigger a manual build, will it?
<jomik> aszlig: Nopi
<srhb> immae: I don't think meta.priority will, no :)
<immae> cool
<immae> Thanks srhb :)
<jomik> It is for the final package to be executed by the user
<jomik> It is prebuilt..
<aszlig> jomik: okay, then you shouldn't need to execute autoPatchelf manually
<jomik> Well, maybe I need to move more stuff to $out then.. :P
<srhb> immae: So essentially, an overlay like... self: super: { hello = super.hello.overrideAttrs (old: { meta = old.meta or {} // { priority = ...; }; });
<aszlig> jomik: it automatically recurses through all outputs and runs patchelf on shared objects and elf binaries
<jomik> I just don't think I "can".. Because, it wants stuff in ./bin, which does not belong there really.
<aszlig> jomik: ah, so the whole package expects a certain directory structure, right?
<srhb> immae: And you could make a neat function for that if you need to do it a lot.
<aszlig> jomik: so you probably need to either do more wrapping or use something like libredirect to bend some paths
<jomik> Yeah. Arch even does something like making a wrapper script that cds to the package directory before executing the shell script that runs the binary...
<immae> srhb: Yes, I’ll do something like that, thanks :)
<immae> I never played with priorities yet, so, it’s a good time to start
<jomik> Guess maybe I should just build it in Nix..
<immae> srhb++
<{^_^}> srhb's karma got increased to 54
<jomik> autoPatchelf can not find `libstdc++.so.6` ..
<jomik> Nah, too much of a pain in my ass to fix up `Firestorm`. Thought it'd be easy enough to just snatch what I needed from the AUR package. But there is too much weirdo structure.
<jomik> Time to put the baby to bed XD Have a nice day, and thanks for trying to help.
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<aszlig> jomik: hm... i think i did package some second life viewer a few years ago, but not sure which one, lemme check...
<aszlig> ah, damn, too late
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<aszlig> and it was firestorm X-D
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<srhb> ,tell jomik Check the channel history, aszlig did package firestorm at one point. :-)
<{^_^}> srhb: I'll pass that on to jomik
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<aszlig> srhb: ah, thanks, didn't know it has memoserv-functionality
<srhb> It's very nice indeed :-)
<aszlig> ,tell jomik also, scrap that, i tried to do the source build but gave up on it at some point as well
<{^_^}> aszlig: I'll pass that on to jomik
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<cocreature> I have some derivation where calling overrideAttrs seems to throw certain attributes away. Specifically, if I replace "drv" by "drv.overrideAttrs(oldAttrs: {})" I get an error about a "tlType" attribute missing later on (it’s a texlive package). Is that expected? Can I avoid this somehow?
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<immae> srhb: while reading some modules to see why some packages are needed I saw lib.lowPrio and lib.hiPrio (in lib/meta.nix) which can help (not completely though, since it sets priority to ±10 so it doesn’t avoid clashes completely)
<srhb> immae: Right, you can always set it yourself instead of bumping it like that.
<srhb> Technically using setPrio is probably more right than manually wrangling the meta attr though, for portability.
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<immae> hmm I don’t see a setPrio?
<immae> only hi and low
<immae> ah right, in 19.03 it is
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<enteee> rxvt_unicide-plugins: how do I install such a plugin that rxvt_unicode finds them? Just installing both in the same environment does not seem to work.
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<genesis> how to install a header like optparse.h ?
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<genesis> let's try $out/include
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<genesis> i still have issue with fetchSubmodules :/
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<enteee> ok I found the solution to my problem: I had to install pkgs.rxvt_unicode-with-plugins instead of just pkgs.rxvt_unicode. I got confused because defalt plugins did work..
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<enteee> genesis: what are you trying to achive?
<genesis> seems if i change rev to a non tag it's fetching
<genesis> i try to update z88dk
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<GiGa> Hello, I'm trying to work on issue #60433 following a tip from @tadfisher
<{^_^}> https://github.com/NixOS/nixpkgs/issues/60433 (by joncojonathan, 4 days ago, open): Android-Studio cannot GPG sign
<GiGa> They say I need to add "gpg in [Android Studio's] inputs"
<GiGa> I'm not sure where in the derivation to do that
<GiGa> unless it's inside the braces at the top of the file?
<enteee> genesis: can you share your progress?
<genesis> rev = "9abd768aaa72e2733b85e5ecba4f3c55812c0f23" is same as rev = "v${version}"; doesn't work too, but with other rev, it's ok
<GiGa> Apparently the problem is that Android Studio uses FHS, so do I need to pass it in the fhsEnv area?
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<{^_^}> Channel nixpkgs-19.03-darwin advanced to https://github.com/NixOS/nixpkgs/commit/a1411aea92d (from 56 minutes ago, history: https://channels.nix.gsc.io/nixpkgs-19.03-darwin)
<GiGa> Adding into those braces doesn't seem to work
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<{^_^}> Channel nixos-19.03-small advanced to https://github.com/NixOS/nixpkgs/commit/a1411aea92d (from 71 minutes ago, history: https://channels.nix.gsc.io/nixos-19.03-small)
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<yuken> Hmm. Godot seems to be behind on NixOS, guess that'll be my first "custom" package.
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<tilpner> > godot.name
<{^_^}> "godot-3.1.1"
<tilpner> Which version do you want?
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<immae> srhb: after some clean up on my side, it turns out that most of the collisions are actually collisions coming only from `nixos/modules/config/system-path.nix`, so I guess I’m not the only one "touched" by this issue? Should I instead fix it there rather than only locally?
<immae> (for instance coreutils + procps + utillinux alone make more than half of the collisions)
* tilpner wouldn't mind a way to thin out requiredPackages
<kisik21> This thing says that theming module isn't defined when I'm trying to process it as a part of home-manager communication. What did I do wrong? https://gist.github.com/kisik21/5f6732376426190cb1379a0353c51071
<immae> well they seem quite important and minimalist to me (what would you remove tilpner?), but having reasonnable priorities seems like the job of that package
<immae> s/package/module/
<tilpner> immae: nano, perhaps strace, ssh, rsync
<immae> ok
<immae> makes sense (except for nano)
<gchristensen> gotta have an editor :)
<immae> (an editor is important yes)
<tilpner> As a default, sure!
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<tilpner> But what's wrong with allowing a user to decide against the default?
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<tilpner> Right now you can't really remove anything from that list
<joapet99> Hewwo
<tilpner> Short of disabledModules
<immae> right
<immae> (my initial point was setting correct priorities to avoid warning messages though, not adding or removing tools from there :D )
<gchristensen> tilpner: how about a "noDefaultPackages" option or something
<kisik21> SSH installed by default is the coolest thing in NixOS ever.
<immae> kisik21: if you use a local machine where you don’t need ssh, your argument doesn’t work
<tilpner> gchristensen: I want most of them though, and I don't want to copy that list to my own config and risk it getting out of sync
<gchristensen> yeah but _I_ want none of them
<kisik21> Well, I use SSH everyday :3 so for me it's the coolest. Coolness is subjective after all.
<immae> kisik21: I do too, but it’s not the case of everyone.
<kisik21> I specifically formulated it as a subjective. Sorry if it wasn't clear enough :3
<immae> How about something like `withFoo` in configuration?
<tilpner> gchristensen: Would everything still work without these? Do you know if others parts of NixOS implictly rely on them?
<immae> kisik21: ok I didn’t take it as is, sorry for the misunderstanding :)
<enteee> genesis: i think this is intended, because tags can move.
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<gchristensen> tilpner: dunno but I'm willing to find out :)
<immae> There are a lot of commands in activationScript that assume some of them present at least
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<immae> (like "basic activationScript", not even custom ones)
<joapet99> So I'm in a bit of a nix package mangement problem. I have problems launching Star Citizen in Wine with DXVK. DXVK though says that LLVM version 7.0.1 may cause problems so I thought I would try to change the LLVM version to either 7.0.0 or 8.0.0. Turns out it's not that easy on nixos and nixpkgs
<gchristensen> yeah but anything but considering that a bug is wrong
<tilpner> immae: activate sets a PATH at the top
<immae> Right, but based on that list, no?
<immae> Ah no distinct list, sorry
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<tilpner> immae: Your actual question was lost a little. Perhaps it would be a good idea to create an issue where you can list all collisions and which package you think should be prioritised?
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<immae> Well, I actually have no opinion on which should be prioritized
<immae> but yes I can create an issue
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<immae> the sensible choice would be "the one that nix choses currently", for least surprise
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<talqu_> hi, im trying to deploy trivial example from nixops manual (to a nixos machine). However i get these errors: - The ‘fileSystems’ option does not specify your root file system. - You must set the option ‘boot.loader.grub.devices’ or 'boot.loader.grub.mirroredBoots' to make the system bootable.
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<yuken> tilpner, 3.1.1 o-o
<tilpner> ,unstable yuken
<yuken> Ah, thanks.
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<infinisil> talqu_: you need to include the hardware-config of the machine if you use a standard nixos machine
<talqu_> infinisil: any link i could have a look at how to do that. Nixops manual doesn't seem to talk about that
<infinisil> talqu_: Just add `imports = [ ./hardware-configuration.nix ]`, as if it was your /etc/nixos/configuration.nix
<Myrl-saki> Oh. This is, uh, surprising. I just realized that the Gentoo-like use-flags PR is from SNLOS.
<Myrl-saki> SLNOS*
<infinisil> Oh I totally forgot, I wanted to review that one
<infinisil> #56227 fyi
<{^_^}> https://github.com/NixOS/nixpkgs/pull/56227 (by oxij, 10 weeks ago, open): Typed `nixpkgs.config` with Gentoo-like use-flags
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<Myrl-saki> Is there a package directly under all-packages.nix that uses propagatedBuildInputs?
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<tilpner> Myrl-saki: docbook_xsl
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<Myrl-saki> Hm.
<Myrl-saki> Oh, it's a setup hook.
<Myrl-saki> I guess that's a use-case of it.
<{^_^}> Channel nixpkgs-unstable advanced to https://github.com/NixOS/nixpkgs/commit/8bc70c937b3 (from 3 hours ago, history: https://channels.nix.gsc.io/nixpkgs-unstable)
<talqu_> infinisil: with this https://pastebin.com/Du44YaNT, I now get "You must set the option ‘boot.loader.grub.devices’ or 'boot.loader.grub.mirroredBoots' to make the system bootable."
<infinisil> talqu_: Ah, I guess that stuff usually isn't in hardware-configuration.nix
<infinisil> talqu_: Managing a NixOS system with Nixops requires the exact same configuration.nix as you would've used without nixops
<talqu_> weird that they don't mention any of this in nixops manual
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<talqu_> infinisil: i've added imports = [ ./configuration.nix ]; to trivial-env.nix where configuration.nix is the one of my remote machine and it worked :)
<talqu_> so now i can move the systemd service logic to trivial.nix and finally have a deployment process, where the build happens on my local machine and then the resulting closures/binaries get copied to remote machine. Am i correct?
<infinisil> talqu_: Yup :) I didn't suggest nixops originally because it's a bit overkill
<talqu_> i added imports = [ ./configuration.nix ]; where configuration.nix is from my local machine and it also work.
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<stranger___> hello. what do you think? https://github.com/NixOS/nixpkgs/pull/59027
<{^_^}> #59027 (by gnidorah, 4 weeks ago, open): munt: init at 2.3.0
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<talqu_> can I add an openssh.authorizedKeys.keys for root via configuration.nix? Is it users.users.root = {...}?
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<pmiddend> In order to use the Steam overlay with my game, I have to LD_PRELOAD an .so file. When I use the one from my $HOME directory, the app doesn't start because it doesn't find libGL.
<pmiddend> Does anyone have experience with this?
<ben> talqu_: id expect it to work
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<kl3> how can i report bugs without a github account?
<ben> kl3: I'd suggest this channel and hoping someone else posts them to github for you
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<init_6> kl3: there is https://discourse.nixos.org/
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<kl3> nix-channel --update throws ENOENT on some /nix/store/... path. i have been using the unstable channel for the last few generations, rebooted into the latest, did `nix-collect-garbage -d' at some point, now this
<kl3> should i open a topic on discourse? don't want to pollute this channel
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<aanderse> @GrahamcOfBorg not giving the output i expect in https://github.com/NixOS/nixpkgs/pull/60901 so am i missing something obvious?
<{^_^}> #60901 (by petabyteboy, 13 hours ago, open): viu: init at 0.1 (fixes #60831)
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<pie_> maurer, i didnt say the nag screen should force you to update :p
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<pie_> so how do i get the firefox hotfix
* pie_ turns on "You can check if you have studies enabled by going to Firefox Preferences -> Privacy & Security -> Allow Firefox to install and run studies."
* pie_ waits for magic to happen
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<pie_> yeah so nothing is happening
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<iqubic> So Mozilla screwed up and now none of my Firefox addons work.
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<iqubic> Is there a fix for that in Nixpkgs yet
<gchristensen> nixpkgs can't fix it
<pie_> i poked around and found this https://normandy.cdn.mozilla.net/api/v1/recipe/
<iqubic> Sorry, what I meant to say was: "Has there been a Firefox update to fix this, and is that update in Nixpgks?"
<pie_> but idk if installing that manually is a huge hack
<gchristensen> iqubic: no
<iqubic> When do you think this will be fixed for Nixos users?
<gchristensen> some amount of time after Mozilla releases an updated
<iqubic> Alright... Cool.
<iqubic> Is it possible to install the nightly/dev version of Firefox?
<gchristensen> however much time it takes depends on if one of the volunteer NixOS maintainers is interested and able to apply and test the update
<Yaniel> apparently you can enable firefox user studies for a temporary fix
<gchristensen> yes, search the package database as normal
<pie_> Yaniel, it didnt work for me after waiting like 5 minutes
<iqubic> Yaniel: I'm already doing that, and it doesn't work for me.
<pie_> Yaniel, but i dont know how user studies work normally
<tilpner> You can also disable signature verification temporarily, but that feels wrong
<pie_> Yaniel, hence the thing i just posted above
<pie_> you can just click the xpi link and allow it
<pie_> tilpner, same
<Yaniel> user studies let mozilla install extensions without your knowledge for testing, in the background
<pie_> BUT I dont know if its OK to do it like I did
<pie_> Yaniel, i know that much, i dont know why it didnt work after 5 minutes :p
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<iqubic> pie_: That xpi link looks wrong.
<pie_> "<pie_> here click this sketchy xpi link" - which is why i posted the normandy url and you can find the link i posted in the json
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<pie_> huh
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<iqubic> That's what I get when I click on the Normandy link
<pie_> iqubic, you have a quite at the end :p
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<iqubic> pie_: a "quite at the end"? I'm not sure what I understand what you mean. Can you please clarify?
<iqubic> Oh, you mean quote.
<pie_> typos are great
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<iqubic> That seems to have fixed my issues for now.
<iqubic> This feels like a giant hack though.
<gchristensen> Firefox has published a lot of places updates on how they're handling it, it'd be best to follow those sources
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<{^_^}> #60916 (by deliciouslytyped, 13 seconds ago, open): Firefox 1548973 Hotfix (addons disabled due to expired intermediate certificate)
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<pmiddend> A library I'm using needs libstdc++.so.6. I find this in my /nix/store under /nix/store/...-gcc-7.4.0-lib. What's the corresponding package, though?
<gchristensen> ,locate lib libstdc++.so
<gchristensen> ,locate libstdc++.so
<{^_^}> Found in packages: libstdcxx5, gcc-unwrapped.lib
<pmiddend> Hmmmmmmm
<{^_^}> Found in packages: R, t, ao, cl, db, gd, go, hy, io, iv, jl, pt, rr, s6, tk, v8, vc, wt, wv, yq, MMA, SDL, ace, ack, acl, afl, agg, ant, apr, apt, arb, ark, atk, ats, bro, bsc, bup, caf, cbc, ccl, cdk, cln, clp, csa, daq, dar, db4, db6, dee, dia, ecl, ecm, eli, eql, fam, fmt, fop, fox, fpc, fpm, fte, gap, gcl, gcr, gdl, git, giv, gle, glm, gpm, gsl, gsm, gss, gts, h2o, hop, hpx, hss, hyp, i2p, icu, igv, ijs, iml, ino, ipe, isl, itk, and 19263 more
<gchristensen> wow
<pmiddend> Indeed, gcc-unwrapped.lib is something I can nix-build and get the path. Nice, thanks!
<ambro718> Where are the kernel modules for the running kernel?
<infinisil> Huh, why did ,locate lib ... work at all, I don't think it should!
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<infinisil> Ah, with how I implemented it, ",locate lib libstdc++.so" == ",locate lib"
<infinisil> Now the >19263 entries make sense :2
<infinisil> pmiddend: I'm pretty sure it should be included in gcc default as well though, try removing the -unwrapped
<infinisil> I think that's just an artifact of how ,locate (nix-locate) works
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<pmiddend> infinisil: That's what I tried first, but this only gives me "gcc-wrapper", which only has the binaries.
<infinisil> I see :/
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<Kiren> When I change my firewall settings I seem to need a reboot before they take effect.
<Kiren> If I understand correctly it should not be needed, but don't know where to begin looking for a solution.
<Kiren> Anyone has any experience with this?
<gchristensen> how do you make these changes?
<Kiren> Altering `networking.firewall.allowedTCPPorts` and running `nixos-rebuild test`
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<gchristensen> hmm changing that works very reliably for me
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<Kiren> Intresting, good to know it should be that simple.
<gchristensen> do you use networking.firewall.extraConfig ?
<Kiren> Nope, nothing but allowedPorts is changed
<Kiren> I do have my config in a different location and set NIX_PATH before running thoug. But not sure if that should affect anything
<gchristensen> do you see your changes represented when you run `iptables -L`
<kl3> `nix-store --verify --repair --check-contents' fixed `nix-channel --udpate' throwing ENOENT, *shrugs*
<Kiren> gchristensen: No, unfortunately, that's what I'm checking.
<gchristensen> what does `systemctl status firewall` say?
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<petercommand> Hi, I am trying to install nixos via usb in my notebook (acer swift5), but I got a static cursor after booting from the graphical live CD iso
<petercommand> I can't even get to the boot menu
<petercommand> is there any way to debug this?
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<xok> hello all...
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<xok> I am trying to run a nixos deploy command against a remote machine...
<xok> buut I'm getting "error out of memory" messages...
<xok> I tried to add swap space but it doesn't seem to help...
<xok> can anyone help with this issue?..
<Kiren> gchristensen: Not familiar with this log format, but it says `Active: active (exited)`. And then there's a log containing starting events from when the machine was booted.
<Kiren> gchristensen: Running `systemctl reload firewall` has not been making any differance either...
<gchristensen> when you ran nixos-rebuild test, did it show it rebuilding a firewall file?
<xok> does anyone know how to force nixops to go to swap if there's not enough memory?..
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<xok> never mind, I had to create swap on a target machine...
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<kl3> i remember seeing nix crash due insufficient memory (2G), so that might have been the cause for old files lingering around
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<xok> kl3: I've cleaned the system but it still ran out of memory...
<xok> creating the swap space helped ...
<Jonathan_> In nixpkgs manual it talks about namespaces and that Hackage pkgs are only in the haskel.packages namespace... How do I use namespaces with declarative package management?
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<Kiren_> gchristensen: Sorry for dissappearing. Had some trouble getting the build logs since I use a script to build.
<Kiren_> Apparently I had changed `nixos-rebuild test` for `nixos-rebuild build` and running `result/activate` But apparently that was not the same thing.
<Kiren_> rebuild test did reload the service properly. Thanks a lot for the help!
<gchristensen> great!
<Kiren_> Jonathan_: What are you trying to achive? Are you modifying your `configuration.nix` or creating a `shell.nix`?
<Jonathan_> configuration.nix
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<Jonathan_> In nix-env packages can be install with `nix-env -iA haskell.packages.<pkg>`. It is touted as better/faster and it says some packages must be accessed with its attribute name.
<Kiren_> Do you want a ghc with specific dependencies?
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<gchristensen> anyone familiar with how hydra's evaluator creates GC roots for every drv?
<tilpner> Jonathan_: And pkgs.haskell.packages.<pkg> doesn't work?
<Kiren_> Jonathan_: So, I'm pretty new to nix myself. As I understand it, you will have to install ghc bundled with the specific dependencies.
<Kiren_> I'd reccomend reading Nix Pills on the _override pattern_, if you haven't already, to get a good sence of what that means.
<LnL> gchristensen: hmm interesting, it seems to create empty files with the drv basename
<Jonathan_> I am still trying to figure stuff out (:. I am trying to get the hackage package `http://hackage.haskell.org/package/implicit` (a cli app). I am also trying to set up my Haskell environment for development. But, also, simply trying to gain some understanding of how nix works.
<aszlig> gchristensen: what's the issue?
<gchristensen> r13y.com fails because its drv's get GC'd :)
<Jonathan_> No pkg.haskell.packages.<pkg> does not work.
<aszlig> gchristensen: do they get GCed *while* evaluating?
<gchristensen> while building
<Jonathan_> Well, I'll play with it some more, thanks for the help Kiren_.
<aszlig> gchristensen: and you have set --gc-roots-dir?
<gchristensen> yeah so it creates a GC root for the top level drv, but all the others get GC'd
<gchristensen> I suppose I should just toggle that option ...
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<aszlig> gchristensen: ah, okay, well, you probably need to set gc-keep-derivations then
<Kiren_> Jonathan_: No worries! Since it's a bit of a hastle to change your environment each time you work on a different project I'd allso reccomend looking into `nix-shell`
<gchristensen> yeah
<aszlig> ah, that got renamed, it's called just keep-derivations
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<Kiren_> Jonathan_: Basically you create a `shell.nix` file. And then run `nix-shell` and it will provide you with this specific environment for that project.
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<Jonathan_> Yeah, I remember bumping into that before, I'll dig it back up, thanks.
<LnL> gchristensen: touch /nix/var/nix/gcroots/$USER/${drv##*/}; nix-store --delete $drv keeps it alive apparently
<gchristensen> LnL: oh COOL. thank you!
<LnL> means you have to manually manage it tho
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<Kiren_> Jonathan_: Cool! I have made myself a template when starting new haskell project that you can have a look at if it's any help https://github.com/kirens-dotfiles/nix-env-templates/blob/master/shells/haskell.nix
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<Jonathan_> Cool!
<Jonathan_> What code editor do you use Kiren_? My favorite is TextAdept but it is not working on nixos right now.
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<Kiren_> Jonathan_: What's not working about it?
<Kiren_> I switched to only using vim recently to get more proficient with it. It's a bit of a hassle to get to configure on nix to start, but now I'm pretty happy with it.
<Jonathan_> It `segmentation faults` when I try running it.
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<lunik1> Has anybody set up ccache on NixOs? I've enabled it on configuration.nix and added "ffmpeg-full" to programs.ccache.packageNames but then ffmpeg compilation fails with "gcc is unable to create an executable file."
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<{^_^}> Channel nixpkgs-18.09-darwin advanced to https://github.com/NixOS/nixpkgs/commit/9e149f76078 (from 3 hours ago, history: https://channels.nix.gsc.io/nixpkgs-18.09-darwin)
<{^_^}> Channel nixpkgs-19.03-darwin advanced to https://github.com/NixOS/nixpkgs/commit/a0b92744f0f (from 3 hours ago, history: https://channels.nix.gsc.io/nixpkgs-19.03-darwin)
<nh2> jtojnar: what shall I do about the jack -> qt dependency, make jack optional?
<jtojnar> nh2: that is probably the easiest way
<jtojnar> in the fuure we should probably split ffado
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<steveeJ> samueldr: I'm currently updating https://github.com/NixOS/nixpkgs/pull/55531 and I retested the printer (granted I'm not using it very often). I noticed that even when printing the hardcoded paper size (A4) it cuts something off at top of the page. any clues why that could be?
<{^_^}> #55531 (by steveeJ, 11 weeks ago, open): pkgs/misc/cups/drivers: add brother mfcl3770cdw
<samueldr> steveeJ: sorry, no idea
<samueldr> printers aren't my thing :)
<steveeJ> samueldr: ha I see. I figured you might know a trick since you have that paper size fix in another derivation
<samueldr> I literally stumbled upon a solution when angrily wondering why my prints were cut at weirdly specific locations :S
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<nh2> jtojnar: done
<steveeJ> samueldr: gotcha, well. I'll try to find what's causing this here. I think we can still continue on the PR though. thanks for the review! I addressed your comments
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<zeta> when i try to do a nixos-rebuild switch, it says: `haskell-overridez` is broken, how do i fix this ?
<Philonous> What's the difference between ststem.userActivationScripts and system.activationScripts ?
<Philonous> I.e. when would I use which one?
<zeta> is it just broken in nixos version 19.03 or is it the package itself ?
<Philonous> system.userActivationScripts*
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<ajs124> I'm trying to build a static binary of something that requires glib, but trying to build a static version of glib fails like this: https://gist.github.com/ajs124/c322adbb7263818ce5738bba69fb4f49 any ideas how I could fix this?
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<{^_^}> Channel nixos-18.09-small advanced to https://github.com/NixOS/nixpkgs/commit/9e149f76078 (from 3 hours ago, history: https://channels.nix.gsc.io/nixos-18.09-small)
<clever> ajs124: 7.4.0/crtend.o: relocation R_X86_64_32 against `.ctors' can not be used when making a shared object; recompile with -fPIC
<clever> musl-ld: final link failed: nonrepresentable section on output
<ajs124> Yeah, I saw those, but couldn't understand them.
<ajs124> What is a nonrepresentable section?
<clever> not really sure about them either
<steveeJ> samueldr: have you tested the brother drivers on non-nixos to see if they're broken there too?
<ajs124> How does position independent code factor into this?
<ajs124> (which I assume is what PIC stands for)
<samueldr> steveeJ: I don't have a non-nixos kicking around, otherwise I would have
<clever> ajs124: not sure
<samueldr> steveeJ: I also wonder how it works outside nixos
<steveeJ> samueldr: is it a fact that it does? I thought we're just changing script paths
<samueldr> steveeJ: not sure I follow?
<samueldr> steveeJ: but maybe their install allows some impure modification in the FS
<steveeJ> samueldr: are you assuming that the page size works correct on non-nixos or do you know for a fact?
<samueldr> I assume, no evidence
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<steveeJ> it's hard to find enthusiasm for debugging cups and proprietary drivers /o\
<samueldr> I do agree
<samueldr> I think, haven't completely validated, that when cups detects the browser through avahi/bonjour, in my case, it seems fine, I printed earlier this week without having my driver installed
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<samueldr> maybe I accidentally wiped the right part of the print
<samueldr> I just checked and it's fine...
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<samueldr> I'll chalk it up to luck with a networked printer o.O
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<steveeJ> any chance cups itself is to blame on nixos?
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<samueldr> I'm willing to bet your knowledge of the situation is about equal to mine, steveeJ
<samueldr> if not greater
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<ambro718> Is there someone who is running NixOS in virtualbox here and has kernel 4.19? Can you check if "modprobe vboxsf" results in errors?
<ambro718> I am trying to update VirtualBox to 6.0.6 and see strange problems loading vboxsf module.
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<ambro718> It might be an issue not at all related to the upgrade but to the kernel gaining its own vboxguest and vboxvideo modules (and no vboxsf) which are loaded instead of the ones from additions, then vboxsf cannot work with those.
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<lambda-11235> I'm trying to create a package, but I'm confused as to what prefix and DESTDIR should be set to. I've gathered that prefix should be $out, but what should $DESTDIR be?
<lambda-11235> Does it just install to root, so DESTDIR should be left blank?
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<ambro718> lambda-11235: for autoconf packages, yes I think prefix is usually set to $out and DESTDIR is not defined
<ambro718> lambda-11235: usually you just let the default build steps call configure and they take care of many common options
<lambda-11235> ambro718: Thankss. The thing I'm packaging only has a makefile that you pass prefix and DESTDIR to directly.
<ambro718> by default, packages defined by mkDerivation make an effort to automatically do the right build steps, you don't call configure and make literally
<ambro718> okay then
<lambda-11235> Also, where can I find a list of the licenses in stdenv.lib.licenses?
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<ambro718> lambda-11235: lib/licenses.nix
<lambda-11235> Ah, sorry. I thought was in the nixpkgs root when I was actually in ./pkgs. No wonder I had trouble finding it.
<pie_> clever, (or anyone else that might be able to help) so i have this single-file reproducer for a bug, i cleaned it up a bit, still cant get debug symbols to work https://bpaste.net/show/07a1823756f1
<pie_> gdb always says No symbol table info available. if i try to do something like info args
<pie_> objdump -S on /nix/store/gv39cd8g28p39sig8bbp85bi5z5jxlqa-r-reticulate-1.10/library/reticulate/libs/reticulate.so doesnt show source code lines, which i heard should be a thing
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<pie_> wait...LOL I just found that something i started packaging is already packaged :D
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<{^_^}> Channel nixos-unstable-small advanced to https://github.com/NixOS/nixpkgs/commit/c87f3820e5c (from 6 hours ago, history: https://channels.nix.gsc.io/nixos-unstable-small)
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<ambro718> Shouldn't /run/opengl-driver not exist and instead only /run/opengl-driver-64 and /run/opengl-driver-32? Currently a 32-bit app would need to look both in /run/opengl-driver (to support 32-bit system) and /run/opengl-driver-32 (to support 64-bit system), which is inefficient as on 32-bit system it would always find unusable 64-bit libraries in the former and fall back to the latter.
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<ambro718> How do I prevent removal of a RPATH that I added intentionally?
<ambro718> I added a RPATH with patchelf but it gets removed by "shrinking RPATHs of ELF executables and libraries"
<ambro718> specifically, as an attempt to fix https://github.com/NixOS/nixpkgs/issues/22760 I want to add /run/opengl-driver/lib to RPATH
<{^_^}> #22760 (by nihil-2019, 2 years ago, open): VirtualBox cannot access OpenGL with Nvidia Drivers as Normal User
<ambro718> but the automatic rpath shrinking gets in the way!
<lambda-11235> I have a list of sources with name, sha pairs. Like so https://www.paste.org/98492. Nix is complaining about not being able to coerce a set to a string, why would that be?
<infinisil> ambro718: dontStrip = true
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<infinisil> Or not, something like that
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<ambro718> ah it's dontPatchELF
<infinisil> Ah
<ambro718> not optimal though since other RPATHs could be stripped
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<ambro718> and that flag turns off this feature for ALL programs
<ambro718> would it be possible to run my patchelf command after this stripping?
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<tilpner> lambda-11235: That's just a set, not a derivation, and certainly not a source
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<tilpner> lambda-11235: Perhaps you want to call a fetcher? They will need more arguments though
<lambda-11235> tilpner: Later in the file I map a fetcher over each argument. I'll modify the post to give a clearer image of this.
<infinisil> ambro718: postFixup = '' ...
<ambro718> indeed, thanks
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<lambda-11235> I've updated it. Should I just post the entire derivation (it's a bit long_?
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<tilpner> lambda-11235: No, what you pasted was correct
<tilpner> As-in, it instantiates here
<tilpner> So your error must be caused by something else
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<lambda-11235> Here's the full code, https://www.paste.org/98494.
<lambda-11235> That code compiles. However, if I uncommit the source line it fails (I did commit out the old src as well).
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<laas> how do I make changes to the kernel configuration?
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<aswanson> Is there a good reason why I might have nix-store locations in my PATH? Or did I screw something up a while ago and just now notice?
<tilpner> lambda-11235: You must pull submodules out of mkDerivation, into a let-in statement at the top of the file
<{^_^}> Channel nixos-19.03-small advanced to https://github.com/NixOS/nixpkgs/commit/fa5fd6b4852 (from 3 hours ago, history: https://channels.nix.gsc.io/nixos-19.03-small)
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<tilpner> lambda-11235: Currently, it's trying to provide submodules as an environment variable to the build process, but failing miserably because it doesn't know how to convert a list of attr-sets to a string
<roconnor> I do not have nix-store locations in my path. But maybe there nixos managed user confurations whose profiles are stored in the nix-store?
<tilpner> s/statement/expression/
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<tilpner> aswanson: One good reason would be that you're in a nix-shell
<aswanson> tilpner: I was, but not any longer. The locations are specific packages like python and ranger
<aswanson> its weird
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<aswanson> they are all things I have set to run when I log in, or dependencies thereof, I think
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<illegalprime> hey all, I can't seem to cross compile using a different gcc version. I'm trying this: nix-build -E 'with (import <nixpkgs> {}).pkgsCross.armv7l-hf-multiplatform; hello.override { stdenv = overrideCC stdenv gcc48; }
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<lopsided98> I installed static Nix on some machines that I don't have root access to, so I am using the --store option to put the store in a different directory
<lopsided98> I wrote a wrapper to automatically add the --store optional and set up sandbox-paths correctly
<lopsided98> This works perfectly except for when I tried to use the machines as hydra builders
<adamantium> Hey guys, i enabled unfree and installed "google-chrome-dev" and in KDE there is no icon.
<lopsided98> When Hydra runs builds, they are unable to find /bin/sh
<pie_> lopsided98, neat
<gchristensen> illegalprime: hey, I can't really help right now, but could you explain more about what is happening?
<lopsided98> I can build the exact same derivation on the machine using "nix build" and it works fine
<illegalprime> gchristensen: thanks & sure! I'm trying to build hello with a cross gcc 4.8 toolchain, when I run the build it attempts to build gcc-debug-4.8.5-armv7l-unknown-linux-gnueabihf but that build fails
<{^_^}> Channel nixos-unstable-small advanced to https://github.com/NixOS/nixpkgs/commit/74bc006bbbb (from 3 hours ago, history: https://channels.nix.gsc.io/nixos-unstable-small)
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<illegalprime> I see gcc 7.4 paths when I'm building gcc 4.8, I think it's failing because of that
<illegalprime> this path is getting included is /nix/store/9zqqkgaj9yw5l16c42578ykbwhc0py7h-armv7l-unknown-linux-gnueabihf-stage-final-gcc-debug-7.4.0/lib/gcc/armv7l-unknown-linux-gnueabihf/7.4.0/include-fixed
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<lopsided98> I upgraded from Nix 2.2 (which matthewbauer's static-nix branch has) to 2.2.2 and I thought it fixed it because I was able to build some things that previously failed, but now it has started happening again
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<lopsided98> AFAICT Hydra just runs "nix-store --serve --write", but I haven't figured out any way to reproduce the problem outside of Hydra
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<illegalprime> i think i might have to replace gcc with gcc48 globally but ive been unable to do that with an override, this is a similar issue: https://github.com/NixOS/nixpkgs/issues/38552
<{^_^}> #38552 (by veprbl, 1 year ago, open): Override the default compiler
<infinisil> illegalprime: I want to point out that you didn't even post your error.. Which is like the most important thing for trying to fix things
<matthewbauer> illegalprime: i think you need: `nix-build -E 'with (import <nixpkgs> {}).pkgsCross.armv7l-hf-multiplatform; hello.override { stdenv = overrideCC stdenv buildPackages.gcc48; }`
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<illegalprime> infinisil: you're right, sorry about that. I'm trying to organize the relevant lines in a pastebin, it's kind of messy
<illegalprime> matthewbauer: oh dang i think that worked, thanks! I'm trying to build hardkernel's uboot for the odroid c1+
<illegalprime> I have to spend more time reading the internals of stdenv to grok it more
<illegalprime> matthewbauer: the command you gave finishes but a `nix-store -qR result | grep -i gcc` gives gcc7 dependencies, not gcc48
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<illegalprime> https://pastebin.com/3zhaiuKL it looks like it's using gcc7's stdlib
<{^_^}> Channel nixpkgs-19.03-darwin advanced to https://github.com/NixOS/nixpkgs/commit/817bc54a84f (from 78 minutes ago, history: https://channels.nix.gsc.io/nixpkgs-19.03-darwin)
<adamantium> Question: running nixos-unstable branch with zfs... Should I worry that the nixos kernel might upgrade to 5.0 before zfs supports it?
<matthewbauer> illegalprime: looks like it's using both. i wonder if it's getting the gcc-7 part from glibc? there is a way to override that but it's not as easy
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<infinisil> adamantium: i think we have some assertions that would give you an error if that happened. And zfs already supports 5.0
<adamantium> oh, great. thanks infinisil
<adamantium> Glad you guys are on top of this stuff
<illegalprime> matthewbauer: hmmm that makes sense, would a nixpkgs override be a better path? I haven't been able to get that to work yet, I've tried https://github.com/NixOS/nixpkgs/issues/38552#issuecomment-407236789
<illegalprime> except I put crossSystem in the nixpkgsFn arguments
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<{^_^}> Channel nixos-19.03-small advanced to https://github.com/NixOS/nixpkgs/commit/817bc54a84f (from 2 hours ago, history: https://channels.nix.gsc.io/nixos-19.03-small)
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<adamantium> Is there a simple way to just pull in all of the kde applications
<adamantium> I don't want to maintain a list, but I want everything to just be there
<illegalprime> adamantium: I guess you could loop through everything in kdeApplications.*
<lopsided98> I mostly figured out my problem with the sandbox /bin/sh. It is using a version of ld-linux that is not included in the sandbox (which results in the misleading "No such file or directory")
<illegalprime> something like `builtins.attrValues pkgs.kdeApplications`
<lopsided98> It works sometimes because the nixpkgs revision used to build the sandbox bash happens to match the current build
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<lopsided98> Using a statically linked bash works correctly
<adamantium> lopsided98: Ah, I was hoping someone would have done this already and just give me some code :) I don't know nix
<adamantium> illegalprime: ^
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<illegalprime> adamantium: so you could try `environment.systemPackages = builtins.attrValues pkgs.kdeApplications;`
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<illegalprime> `builtins.attrValues pkgs.kdeApplications` returns a list of everything in kdeApplications, if you want to append it to an existing list you can do `[ pkg1 pkg2 ] ++ (builtins.attrValues pkgs.kdeApplications)`
<illegalprime> adamantium: I would keep a list of packages though, the list in kdeApplications is really _a lot of_ packages, and you probably don't need them all
<adamantium> error: The option value `environment.systemPackages.[definition 6-entry 13]' in `/nix-config/modules/nixos/desktop/plasma.nix' is not of type `package'.
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<adamantium> illegalprime: Alright, i guess you're probably right. I'm always overkill on stuff
<bohan> i notived gcc8 is actually gcc7
<bohan> i need 9 anyway, heh
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<illegalprime> adamantium: oh i see, some values in kdeApplications are not packages, but are helpers or data, etc. you would filter that list to get just the packages. but again I don't think it's commonly done
<adamantium> Yeah forget it. Thanks anyway
<adamantium> A lot of people ask questions on how to do this online though via reddit, discourse, and github issues. We need documentation on how to do it I think
<adamantium> Because none of the solutions on those pages really works
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<illegalprime> yeah, it's probably because other distros have meta-packages that install a bunch of extra kde stuff. If you enable plasma5 in nixos it _does_ install some packages automatically for you though: https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/services/x11/desktop-managers/plasma5.nix#L75
<illegalprime> but yea if it's a popular question it should probably be in docs or FAQs
<bohan> actually, i don't understand what's going on with gcc8. When i do nix-shell -p gcc8, it's putting /nix/store/rh9a7a202vcrknh3iv6xgxzqgnb4jadz-gcc-wrapper-8.3.0/bin in my PATH env var, but *after* another path to gcc-wrapper-7
<infinisil> bohan: nix-shell -p implicitly uses stdenv.mkDerivation, giving all -p arguments via buildInputs
<infinisil> And stdenv adds the standard gcc
<adamantium> illegalprime: ty
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<bohan> infinisil: oh, ok. thanks