Cross compilation regression due to ccCross

[ambrop72]

Commit 28b6fb6 broke cross compilation, since it changed lots of packages to refer to stdenv.ccCross, which does not exit. Only gccCross does.
Grepping for gccCross reveals a lot of definitions and uses which may not all be related to the stdenv meaning, so I'm not sure what the fix is. Maybe just rename all gccCross to ccCross?

Simple test case:

[ambro@nixos:/etc/nixos/nixpkgs/pkgs/stdenv/linux]$ nix-build make-bootstrap-tools-crosspi.nix -A build -o ~/bootstrap-tools
error: attribute ‘ccCross.libc’ missing, at "/etc/nixos/nixpkgs/pkgs/tools/misc/coreutils/default.nix":30:22
(use ‘--show-trace’ to show detailed location information)

[jgeerds]

CC: @jwiegley

[ambrop72]

This seems to fix the issue (through there are other problems with cross compiling):

diff --git a/pkgs/stdenv/adapters.nix b/pkgs/stdenv/adapters.nix
index 6d8ca55..1f0d728 100644
--- a/pkgs/stdenv/adapters.nix
+++ b/pkgs/stdenv/adapters.nix
@@ -114,6 +114,7 @@ rec {
         };
     } // {
       inherit cross gccCross binutilsCross;
+      ccCross = gccCross;
     };

[wmertens]

Not quite a fix, more of a workaround. Since we became compiler agnostic in
our naming, I think it would be best to rename all gccCross to ccCross.

On Sun, Jan 25, 2015, 2:09 AM Ambroz Bizjak notifications@github.com
wrote:

This seems to fix the issue (through there are other problems with cross
compiling):

diff --git a/pkgs/stdenv/adapters.nix b/pkgs/stdenv/adapters.nix
index 6d8ca55..1f0d728 100644
--- a/pkgs/stdenv/adapters.nix
+++ b/pkgs/stdenv/adapters.nix
@@ -114,6 +114,7 @@ rec {
};
} // {
inherit cross gccCross binutilsCross;

•  ccCross = gccCross;
  

  };

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#5944 (comment).

[ambrop72]

Could we just merge this? It's a one-liner :)
One could even argue that it's fine the way it is, since cross-compilation is only supported with gcc.

[wmertens]

@ambrop72 can you open a PR then? 😄

[ambrop72]

Ah, forgot to close this one, it's already in staging. 4b9729f