Exotic Nix Targets - Public Room Timeline

	Exotic Nix Targets	346 Members
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Sender	Message	Time
10 Jul 2023
trofi	artemis: RE your past problems with `libtool` cross-compiling on Gentoo. I think I found the issue: if you run `nix` itself in a containerized environment `nix` silently falls back into the mode without a sandbox enabled (due to a `sandbox-fallback = true`) and happily runs unsandboxed builds in `/tmp`. ALl the bianries in `/usr/bin` and whatnot are available to the builds and this impurity contaminates the environemtn with `/usr/lib` library search paths breaks the builds. The easy way to check it is to set `sandbox-fallback = false` in `/etc/nix/nix.conf`, restart `nix-daemon` and try to build something. If it fails that means you have been using unsandboxed builds.	08:32:39
trofi	I disabled sandbox fallback in the overlay with https://github.com/trofi/nix-guix-gentoo/commit/88050fcf0f3a11a7a6763494eda580b707be1267 and added a `README` entry to diagnose it: https://github.com/trofi/nix-guix-gentoo/commit/8109131192dc340e314d9e41159b176bfb5b82c8	08:33:40
trofi	What environment did you use to run `nix`? Real machine, a VM or some container?	08:34:20
artemis	In reply to @trofi:matrix.org What environment did you use to run `nix`? Real machine, a VM or some container? real machine, no VMs, no containers	08:56:22
artemis	also my /etc/nix/nix.conf already has `sandbox-fallback = false`	08:58:48
artemis	* also my /etc/nix/nix.conf already has `sandbox-fallback = false` without issue	08:59:01