x11: replace its usage by xlibsWrapper directly

Scilab note: the parameters already had pointed to nonexistent dirs
before this set of refactoring. But that config wasn't even used by
default.

pkgs/tools/graphics/glxinfo/default.nix

@@ -1,4 +1,4 @@
-{stdenv, fetchurl, x11, mesa}:
+{stdenv, fetchurl, xlibsWrapper, mesa}:
 
 let version = "8.1.0"; in
 
@@ -10,7 +10,7 @@ stdenv.mkDerivation {
     sha256 = "0a58hw5850731p4smz4zqsbvyxvgjf7n5xdbs9l1wamk8q3gl0wp";
   };
 
-  buildInputs = [x11 mesa];
+  buildInputs = [xlibsWrapper mesa];
 
   configurePhase = "true";
 

pkgs/tools/graphics/graphviz/2.0.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, pkgconfig, x11, libpng, libjpeg, expat, libXaw
+{ stdenv, fetchurl, pkgconfig, xlibsWrapper, libpng, libjpeg, expat, libXaw
 , yacc, libtool, fontconfig, pango, gd
 }:
 
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
     sha256 = "39b8e1f2ba4cc1f5bdc8e39c7be35e5f831253008e4ee2c176984f080416676c";
   };
 
-  buildInputs = [pkgconfig x11 libpng libjpeg expat libXaw yacc libtool fontconfig pango gd];
+  buildInputs = [pkgconfig xlibsWrapper libpng libjpeg expat libXaw yacc libtool fontconfig pango gd];
   
   configureFlags =
     [ "--with-pngincludedir=${libpng}/include"
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
       "--with-expatincludedir=${expat}/include"
       "--with-expatlibdir=${expat}/lib"
     ]
-    ++ stdenv.lib.optional (x11 == null) "--without-x";
+    ++ stdenv.lib.optional (xlibsWrapper == null) "--without-x";
 
   meta = {
     description = "A program for visualising graphs";

pkgs/tools/graphics/scrot/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, giblib, x11 }:
+{ stdenv, fetchurl, giblib, xlibsWrapper }:
 
 stdenv.mkDerivation rec {
   name = "scrot-0.8";
@@ -8,7 +8,7 @@ stdenv.mkDerivation rec {
     sha256 = "1wll744rhb49lvr2zs6m93rdmiq59zm344jzqvijrdn24ksiqgb1";
   };
 
-  buildInputs = [ giblib x11 ];
+  buildInputs = [ giblib xlibsWrapper ];
 
   meta = {
     homepage = http://linuxbrit.co.uk/scrot/;