nixpkgs/pkgs/os-specific/linux/klibc/shrunk.nix
Eelco Dolstra 0aea0db581 * Put all packages that depend on a specific kernel (notably kernel
modules) together in an attribute set returned by the function
  "kernelPackagesFor" that takes a kernel as argument.  For instance,
  kernelPackages_2_6_23 is the result of calling this function with
  kernel_2_6_23.

  This is necessary in NixOS to make it easier to override the kernel:
  it's not enough to just specify a different kernel (via the
  boot.kernel option), but you also need matching nvidiaDriver, aufs,
  iwlwifi, etc.  Having a single attribute set that contains all
  kernel-related packages makes this much easier.

* The kernel now has a passthru attribute "features" that allows NixOS
  expressions to test whether a kernel has certain features.  For
  instance, the externel "iwlwifi" kernel module package should only
  be built on kernels < 2.6.24, as kernels >= 2.6.24 have iwlwifi
  support integrated.  So the NixOS expressions can do the test
  "kernel.features ? iwlwifi" to see if the iwlwifi package should be
  built.

  Kernel patches can declare additional features.  E.g., the fbsplash
  patch adds a "fbSplash" feature.

svn path=/nixpkgs/trunk/; revision=11881
2008-05-22 12:01:24 +00:00

21 lines
482 B
Nix

{stdenv, klibc}:
stdenv.mkDerivation {
name = "${klibc.name}-shrunk";
buildCommand = ''
ensureDir $out/lib
cp -prd ${klibc}/lib/klibc/bin $out/
cp -p ${klibc}/lib/*.so $out/lib/
chmod +w $out/*
old=$(echo ${klibc}/lib/klibc-*.so)
new=$(echo $out/lib/klibc-*.so)
for i in $out/bin/*; do
echo $i
sed "s^$old^$new^" -i $i
# !!! use patchelf
#patchelf --set-rpath /foo/bar $i
done
''; # */
allowedReferences = ["out"];
}