nixpkgs/pkgs/os-specific/linux/kmod/aggregator.nix

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{ stdenv, kmod, modules, buildEnv }:
buildEnv {
name = "kernel-modules";
paths = modules;
postBuild =
''
source ${stdenv}/setup
if ! test -d "$out/lib/modules"; then
echo "No modules found."
# To support a kernel without modules
exit 0
fi
kernelVersion=$(cd $out/lib/modules && ls -d *)
if test "$(echo $kernelVersion | wc -w)" != 1; then
echo "inconsistent kernel versions: $kernelVersion"
exit 1
fi
echo "kernel version is $kernelVersion"
shopt -s extglob
# Regenerate the depmod map files. Be sure to pass an explicit
# kernel version number, otherwise depmod will use `uname -r'.
if test -w $out/lib/modules/$kernelVersion; then
rm -f $out/lib/modules/$kernelVersion/modules.!(builtin*|order*)
${kmod}/bin/depmod -b $out -a $kernelVersion
fi
'';
}