From 96903d5e480cdf45a0783c3d7fb4adbbdf43d577 Mon Sep 17 00:00:00 2001
From: Vladimir Kirillov <proger@wilab.org.ua>
Date: Fri, 9 May 2014 10:06:56 +0300
Subject: [PATCH] sysdig: support builds without the kernel module, add
 pkgs.sysdig attr

---
 pkgs/os-specific/linux/sysdig/default.nix | 18 ++++++++++--------
 pkgs/top-level/all-packages.nix           |  4 ++++
 2 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/pkgs/os-specific/linux/sysdig/default.nix b/pkgs/os-specific/linux/sysdig/default.nix
index c6a2d5ae5ba..6734563f0ab 100644
--- a/pkgs/os-specific/linux/sysdig/default.nix
+++ b/pkgs/os-specific/linux/sysdig/default.nix
@@ -1,5 +1,6 @@
 {stdenv, fetchurl, cmake, luajit, kernel, zlib}:
 let
+  inherit (stdenv.lib) optional optionalString;
   s = rec {
     baseName="sysdig";
     version="0.1.82";
@@ -8,8 +9,8 @@ let
     sha256="0yjxsdjbkp5dihg5xhkyl3lg64dl40a0b5cvcai8gz74w2955mnk";
   };
   buildInputs = [
-    cmake luajit kernel zlib
-  ];
+    cmake zlib luajit
+  ] ++ optional (kernel != null) kernel;
 in
 stdenv.mkDerivation {
   inherit (s) name version;
@@ -24,17 +25,18 @@ stdenv.mkDerivation {
   ];
   preConfigure = ''
     export INSTALL_MOD_PATH="$out"
+  '' + optionalString (kernel != null) ''
     export KERNELDIR="${kernel.dev}/lib/modules/${kernel.modDirVersion}/build"
   '';
-  postInstall = ''
+  postInstall = optionalString (kernel != null) ''
     make install_driver
   '';
 
-  meta = {
+  meta = with stdenv.lib; {
     inherit (s) version;
-    description = ''A tracepoint-based system tracing tool for Linux'';
-    license = stdenv.lib.licenses.gpl2 ;
-    maintainers = [stdenv.lib.maintainers.raskin];
-    platforms = stdenv.lib.platforms.linux;
+    description = ''A tracepoint-based system tracing tool for Linux (with clients for other OSes)'';
+    license = licenses.gpl2;
+    maintainers = [maintainers.raskin];
+    platforms = platforms.linux ++ platforms.darwin;
   };
 }
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 5fa278924b6..7fd9bd6aa26 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -7377,6 +7377,10 @@ let
 
   statifier = builderDefsPackage (import ../os-specific/linux/statifier) { };
 
+  sysdig = callPackage ../os-specific/linux/sysdig {
+    kernel = null;
+  }; # pkgs.sysdig is a client, for a driver look at linuxPackagesFor
+
   sysfsutils = callPackage ../os-specific/linux/sysfsutils { };
 
   sysprof = callPackage ../development/tools/profiling/sysprof {