Both gccCrossStageStatic and gccCrossStageFinal don't build

[dvc94ch]

Issue description

gccCrossStageStatic complains about infinite recursion and can be worked around with this patch:

diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 17a1c1d..3a72618 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -4240,6 +4240,8 @@ in
         langCC = false;
         libcCross = libcCross1;
         enableShared = false;
+        gettext = null;
+        libelf = null;
       });
       libc = libcCross1;
       binutils = binutilsCross;

gccCrossStageFinal fails with unrecognized file format when attempting to strip debug symbols. I think this commit is d5bb6a1 the problem. Still testing, will take a while to verify.

Steps to reproduce

with import <nixpkgs> {};

let
  pkgsCross = import <nixpkgs> {
    inherit system;
    crossSystem = rec {
      config = "armv7l-unknown-linux-gnueabi";
      bigEndian = false;
      arch = "arm";
      float = "hard";
      fpu = "vfpv3-d16";
      withTLS = true;
      libc = "glibc";
      platform = platforms.armv7l-hf-multiplatform;
      openssl.system = "linux-generic32";
      inherit (platform) gcc;
    };
  };
in
stdenv.mkDerivation rec {
    name = "gcc-arm";
    buildInputs = [ pkgsCross.gccCrossStageFinal ];
}

Technical details

• System: 16.09pre84674.fbde3a7 (Flounder)
• Nix version: nix-env (Nix) 1.11.2
• Nixpkgs version: "16.09pre84674.fbde3a7"

[dezgeg]

This is fixed by #15867 which I hope to integrate soonish.

[dvc94ch]

@dezgeg I'm having trouble with building both pkgsCross.ubootZybo.crossDrv and pkgsCross.linux_4_1.crossDrv and was wondering if those were also regressions.

[dezgeg]

I can build U-Boot (for Wandboard) with #15867 successfully, never tried kernel builds but I think someone successfully used them ~6 months ago or so.

[dvc94ch]

I'm getting this error message when trying to build U-Boot. I can't find any recent changes to stdenv/generic/default.nix that would cause this. Allowing broken isn't the solution is it?

while evaluating the attribute ‘ubootWandboard.crossDrv’ at /home/dvc/nixpkgs/pkgs/top-level/all-packages.nix:11296:41:
while evaluating the attribute ‘ubootWandboard’ at /home/dvc/nixpkgs/pkgs/misc/uboot/default.nix:97:3:
while evaluating ‘buildUBoot’ at /home/dvc/nixpkgs/pkgs/misc/uboot/default.nix:4:16, called from /home/dvc/nixpkgs/pkgs/misc/uboot/default.nix:97:20:
while evaluating ‘mkDerivation’ at /home/dvc/nixpkgs/pkgs/stdenv/adapters.nix:60:22, called from /home/dvc/nixpkgs/pkgs/misc/uboot/default.nix:10:12:
while evaluating ‘mkDerivation’ at /home/dvc/nixpkgs/pkgs/stdenv/generic/default.nix:95:5, called from /home/dvc/nixpkgs/pkgs/stdenv/adapters.nix:80:25:
while evaluating ‘throwEvalHelp’ at /home/dvc/nixpkgs/pkgs/stdenv/generic/default.nix:120:23, called from /home/dvc/nixpkgs/pkgs/stdenv/generic/default.nix:169:21:
Package ‘uboot-wandboard_defconfig-2016.01’ in ‘/home/dvc/nixpkgs/pkgs/misc/uboot/default.nix:46’ is not supported on ‘x86_64-linux’, refusing to evaluate.
a) For `nixos-rebuild` you can set
  { nixpkgs.config.allowBroken = true; }
in configuration.nix to override this.

b) For `nix-env`, `nix-build` or any other Nix command you can add
  { allowBroken = true; }
to ~/.nixpkgs/config.nix.

[dvc94ch]

Turns out that allowing broken is the solution...

[dezgeg]

I think cross compiling has been working for a while now (at least the bootstrap tool jobs I added at http://hydra.nixos.org/jobset/nixpkgs/cross-trunk#tabs-jobs still work).