Merge branch 'merge-kernel-builds' into upstream-master

This is a second attempt at unifying the generic and manual-config
kernel builds (see #412 for the last time).

The set of working kernel packages is a superset of those that work on
master, and as the only objection last time was the size of the $dev
closure and now both $out and $dev combined are 20M smaller than $out on
master (see message for ac2035287fbec30d92165fd3839d1bf71b8edd47), this
should be unobjectionable.

Signed-off-by: Shea Levy <shea@shealevy.com>

1 files changed, 25 insertions, 0 deletions

diff --git a/pkgs/os-specific/linux/kernel-headers/default.nix b/pkgs/os-specific/linux/kernel-headers/default.nix
new file mode 100644
index 000000000000..e4ce19457058
--- /dev/null
+++ b/pkgs/os-specific/linux/kernel-headers/default.nix
@@ -0,0 +1,25 @@
+{ stdenv, kernel, perl }:
+
+let
+  baseBuildFlags = [ "INSTALL_HDR_PATH=$(out)" "headers_install" ];
+in stdenv.mkDerivation {
+  name = "linux-headers-${kernel.version}";
+
+  inherit (kernel) src patches;
+
+  nativeBuildInputs = [ perl ];
+
+  buildFlags = [ "ARCH=${stdenv.platform.kernelArch}" ] ++ baseBuildFlags;
+
+  crossAttrs = {
+    inherit (kernel.crossDrv) src patches;
+    buildFlags = [ "ARCH=${stdenv.cross.platform.kernelArch}" ] ++ baseBuildFlags;
+  };
+
+  installPhase = ''
+    find $out \( -name ..install.cmd -o -name .install \) -print0 | xargs -0 rm
+  '';
+
+  # Headers shouldn't reference anything else
+  allowedReferences = [];
+}