stdenv/freebsd: fixes from staging

[rhelmot]

Fallout from #410186
Fallout from #407315

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandboxing enabled in nix.conf? (See Nix manual)
  • sandbox = relaxed
  • sandbox = true
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• Tested basic functionality of all binary files (usually in ./result/bin/)
• Nixpkgs 25.11 Release Notes (or backporting 24.11 and 25.05 Nixpkgs Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
• NixOS 25.11 Release Notes (or backporting 24.11 and 25.05 NixOS Release notes)
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
• Fits CONTRIBUTING.md.

---

Add a 👍 reaction to pull requests you find important.

[philiptaron]

I'm looking for you to self-merge, Audrey (@rhelmot) -- the diff makes perfect sense to me, but I don't have a FreeBSD VM with the nascent NixBSD available to test.

[Ericson2314]

I noticed these problems when working on #414321 and #414573. You might want to merge master into staging-next to double check that I didn't cause any further breakage with those.

[zowoq]

I noticed these problems when working on #414321 and #414573. You might want to merge master into staging-next to double check that I didn't cause any further breakage with those.

libiconv seems to be broken on freebsd, looks like it may have been caused by #414573.

[zowoq]

I noticed these problems when working on #414321 and #414573. You might want to merge master into staging-next to double check that I didn't cause any further breakage with those.

libiconv seems to be broken on freebsd, looks like it may have been caused by #414573.

@Ericson2314 Could I bother you to take a look at this please, I'm not really sure what to do with it besides just reverting your change for freebsd.

[rhelmot]

Can you please test this diff? I've found it fixes the infinite recursion but I don't know if it has other knock-on effects (for example, introducing dependencies in the final stdenv on the bootstrap tools)

diff --git a/pkgs/stdenv/freebsd/default.nix b/pkgs/stdenv/freebsd/default.nix
index db991403ece0..6f19db02f373 100644
--- a/pkgs/stdenv/freebsd/default.nix
+++ b/pkgs/stdenv/freebsd/default.nix
@@ -589,7 +589,10 @@ in
       __bootstrapArchive = bootstrapArchive;
       fetchurl = prevStage.fetchurlReal;
       freebsd = super.freebsd.overrideScope (
-        self': super': { localesPrev = prevStage.freebsd.localesReal; }
+        self': super': {
+          localesPrev = prevStage.freebsd.localesReal;
+          libc = prevStage.freebsd.libc;
+        }
       );
     };
   })

[Ericson2314]

Oh this is native compilation only infinite recursion?

[rhelmot]

Yes