1 files changed, 8 insertions, 10 deletions
diff --git a/pkgs/os-specific/linux/libcap/default.nix b/pkgs/os-specific/linux/libcap/default.nix
index 1ffdaa36e96..dfcbe61611c 100644
--- a/pkgs/os-specific/linux/libcap/default.nix
+++ b/pkgs/os-specific/linux/libcap/default.nix
@@ -5,12 +5,14 @@ assert stdenv.isLinux;
 stdenv.mkDerivation rec {
   name = "libcap-${version}";
   version = "2.24";
-  
+
   src = fetchurl {
     url = "mirror://kernel/linux/libs/security/linux-privs/libcap2/${name}.tar.xz";
     sha256 = "0rbc9qbqs5bp9am9s9g83wxj5k4ixps2agy9dxr1v1fwg27mdr6f";
   };
-  
+
+  outputs = [ "dev" "out" ];
+
   nativeBuildInputs = [ perl ];
   propagatedBuildInputs = [ attr ];
 
@@ -18,14 +20,10 @@ stdenv.mkDerivation rec {
 
   makeFlags = "lib=lib prefix=$(out)";
 
-  passthru = {
-    postinst = n : ''
-      mkdir -p $out/share/doc/${n}
-      cp ../License $out/share/doc/${n}/License
-    '';
-  };
-
-  postInstall = passthru.postinst name;
+  postInstall = ''
+    mkdir -p "$dev/share/doc/${name}"
+    cp ../License "$dev/share/doc/${name}/License"
+  '';
 
   meta = {
     description = "Library for working with POSIX capabilities";