I’m trying to get SoapySDR working with the SoapySDRPlay libraries working with NixOS on my machine. It looks like it should be straightforward.
It looks like adding the option: services.sdrplayApi.enable = true then from the docs for that option adding the overlay: soapysdr-with-plugins = super.soapysdr.override { extraPackages = [ super.soapysdrplay ]; };
The key reason for doing this is making the that the package knows the correct path for the libraries but it doesn’t seem like the way to set this (SOAPY_SDR_PLUGIN_PATH) is set properly:
If I run SoapySDRUtils --info
It points to: /nix/store/wxawrabx434gi8phbpimx656417a68i2-soapysdr-0.8.1/lib
which contains libSoapySDR.so libSoapySDR.so.0.8 libSoapySDR.so.0.8.1 (but no reference to SDRPlay.
But it seems like it should point to: /run/current-system/sw/lib/SoapySDR/modules0.8 since it contains libsdrPlaySupport.so
I’ve been trying to debug this but I haven’t been able to nail it dwon.
I think what currently missing is giving it the same name in nixpkgs such that the overridden version being overlaid is what other modules and parts of nixpkgs are referring to:
This way anything that currently references pkgs.soapysdr will refer to version created by the overlay. This also assumes the override portion itself it correct, but I’m not familiar with that particular package.
~ ❯ sudo nixos-rebuild switch --show-trace 34s
building Nix...
building the system configuration...
error: while evaluating the attribute 'activationScript' of the derivation 'nixos-system-nixos-21.11.334934.8a053bc2255' at /nix/store/1wyhmdzb1pbwzz0ks6482rld30cl2amf-nixos-21.11.334934.8a053bc2255/nixos/pkgs/stdenv/generic/make-derivation.nix:205:7:
while evaluating the attribute 'system.activationScripts.script' at /nix/var/nix/profiles/per-user/root/channels/nixos/nixos/modules/system/activation/activation-script.nix:136:9:
while evaluating 'systemActivationScript' at /nix/var/nix/profiles/per-user/root/channels/nixos/nixos/modules/system/activation/activation-script.nix:20:33, called from /nix/var/nix/profiles/per-user/root/channels/nixos/nixos/modules/system/activation/activation-script.nix:136:18:
while evaluating 'textClosureMap' at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/strings-with-deps.nix:75:35, called from /nix/var/nix/profiles/per-user/root/channels/nixos/nixos/modules/system/activation/activation-script.nix:49:9:
while evaluating 'id' at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/trivial.nix:14:5, called from undefined position:
while evaluating the attribute 'text' at /nix/var/nix/profiles/per-user/root/channels/nixos/nixos/modules/system/activation/activation-script.nix:9:5:
while evaluating the attribute 'text' at undefined position:
while evaluating 'g' at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/attrsets.nix:301:19, called from undefined position:
while evaluating anonymous function at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:171:72, called from /nix/var/nix/profiles/per-user/root/channels/nixos/lib/attrsets.nix:304:20:
while evaluating the attribute 'value' at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:585:9:
while evaluating the option `system.activationScripts.etc.text':
while evaluating the attribute 'mergedValue' at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:617:5:
while evaluating the attribute 'values' at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:611:9:
while evaluating the attribute 'values' at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:710:7:
while evaluating anonymous function at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:597:28, called from /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:597:17:
while evaluating definitions from `/nix/var/nix/profiles/per-user/root/channels/nixos/nixos/modules/system/etc/etc.nix':
while evaluating 'dischargeProperties' at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:669:25, called from /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:598:137:
while evaluating the attribute 'value' at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:452:44:
while evaluating the attribute 'buildCommand' of the derivation 'etc' at /nix/store/1wyhmdzb1pbwzz0ks6482rld30cl2amf-nixos-21.11.334934.8a053bc2255/nixos/pkgs/stdenv/generic/make-derivation.nix:205:7:
while evaluating 'concatMapStringsSep' at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/strings.nix:110:5, called from /nix/var/nix/profiles/per-user/root/channels/nixos/nixos/modules/system/etc/etc.nix:54:7:
while evaluating anonymous function at /nix/var/nix/profiles/per-user/root/channels/nixos/nixos/modules/system/etc/etc.nix:54:33, called from undefined position:
while evaluating 'concatMapStringsSep' at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/strings.nix:110:5, called from /nix/var/nix/profiles/per-user/root/channels/nixos/nixos/modules/system/etc/etc.nix:54:43:
while evaluating 'escapeShellArg' at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/strings.nix:318:20, called from undefined position:
while evaluating the attribute 'source' at undefined position:
while evaluating 'g' at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/attrsets.nix:301:19, called from undefined position:
while evaluating anonymous function at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:171:72, called from /nix/var/nix/profiles/per-user/root/channels/nixos/lib/attrsets.nix:304:20:
while evaluating the attribute 'value' at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:585:9:
while evaluating the option `environment.etc.dbus-1.source':
while evaluating the attribute 'mergedValue' at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:617:5:
while evaluating anonymous function at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:619:17, called from /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:619:12:
while evaluating 'check' at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/types.nix:362:15, called from /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:619:22:
while evaluating the attribute 'serviceDirectories' of the derivation 'dbus-1' at /nix/store/1wyhmdzb1pbwzz0ks6482rld30cl2amf-nixos-21.11.334934.8a053bc2255/nixos/pkgs/stdenv/generic/make-derivation.nix:205:7:
while evaluating anonymous function at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/types.nix:371:14, called from undefined position:
while evaluating the attribute 'value' at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:630:27:
while evaluating anonymous function at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:619:17, called from /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:619:12:
while evaluating 'check' at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/types.nix:362:15, called from /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:619:22:
while evaluating the attribute 'passAsFile' of the derivation 'system-path' at /nix/store/1wyhmdzb1pbwzz0ks6482rld30cl2amf-nixos-21.11.334934.8a053bc2255/nixos/pkgs/stdenv/generic/make-derivation.nix:205:7:
while evaluating the attribute 'passAsFile' at /nix/store/1wyhmdzb1pbwzz0ks6482rld30cl2amf-nixos-21.11.334934.8a053bc2255/nixos/pkgs/build-support/buildenv/default.nix:77:5:
while evaluating the attribute 'buildInputs' of the derivation 'cubicsdr-0.2.5' at /nix/store/1wyhmdzb1pbwzz0ks6482rld30cl2amf-nixos-21.11.334934.8a053bc2255/nixos/pkgs/stdenv/generic/make-derivation.nix:205:7:
while evaluating the attribute 'postFixup' of the derivation 'soapysdr-0.8.1' at /nix/store/1wyhmdzb1pbwzz0ks6482rld30cl2amf-nixos-21.11.334934.8a053bc2255/nixos/pkgs/stdenv/generic/make-derivation.nix:205:7:
while evaluating 'optionalString' at /nix/store/1wyhmdzb1pbwzz0ks6482rld30cl2amf-nixos-21.11.334934.8a053bc2255/nixos/lib/strings.nix:202:5, called from /nix/store/1wyhmdzb1pbwzz0ks6482rld30cl2amf-nixos-21.11.334934.8a053bc2255/nixos/pkgs/applications/radio/soapysdr/default.nix:37:15:
while evaluating the attribute 'buildInputs' of the derivation 'limesuite-20.10.0' at /nix/store/1wyhmdzb1pbwzz0ks6482rld30cl2amf-nixos-21.11.334934.8a053bc2255/nixos/pkgs/stdenv/generic/make-derivation.nix:205:7:
while evaluating the attribute 'postFixup' of the derivation 'soapysdr-0.8.1' at /nix/store/1wyhmdzb1pbwzz0ks6482rld30cl2amf-nixos-21.11.334934.8a053bc2255/nixos/pkgs/stdenv/generic/make-derivation.nix:205:7:
while evaluating 'optionalString' at /nix/store/1wyhmdzb1pbwzz0ks6482rld30cl2amf-nixos-21.11.334934.8a053bc2255/nixos/lib/strings.nix:202:5, called from /nix/store/1wyhmdzb1pbwzz0ks6482rld30cl2amf-nixos-21.11.334934.8a053bc2255/nixos/pkgs/applications/radio/soapysdr/default.nix:37:15:
while evaluating the attribute 'buildInputs' of the derivation 'soapysdr-sdrplay3' at /nix/store/1wyhmdzb1pbwzz0ks6482rld30cl2amf-nixos-21.11.334934.8a053bc2255/nixos/pkgs/stdenv/generic/make-derivation.nix:205:7:
infinite recursion encountered, at undefined position
Sure enough, soapysdrpaly does refer to soapysdr and the overlay provided does create that recurrsion.
This is a bit of a guess on my part, but I think there is a chance that if you were to use, self.soapysdrplay in the override, then it might break the recursion. That might even be one of the indended reasons for having the two arguments, but I can’t find specific documentation to that effect.
I know that self or the first argument referrs to the version of nixpkgs after the overlay is applied so I think that should make the refences different, so there shouldn’t be a reference lookup loop. Probably worth giving it a shot, but I’m speculating here.
Well what do you know. Changing the references from super to self worked! Amazing! I think that makes sense then, if it was super, it would look backwards, trying to find the “root derivation” (is that the right idea). If it’s self, there is no lookup.
Thanks a lot for your help! That change took 4 hours to dig into plus your help
