--- chromium-browser-24.0.1312.45/src/third_party/libXNVCtrl/libXNVCtrl.gyp~	2013-01-04 00:45:32.000000000 +0200
+++ chromium-browser-24.0.1312.45/src/third_party/libXNVCtrl/libXNVCtrl.gyp	2013-01-04 00:45:35.620067292 +0200
@@ -3,16 +3,54 @@
 # found in the LICENSE file.
 
 {
-  'targets': [
-    {
-      'target_name': 'libXNVCtrl',
-      'type': 'static_library',
-      'sources': [
-        'NVCtrl.c',
-        'NVCtrl.h',
-        'NVCtrlLib.h',
-        'nv_control.h',
+  'variables': {
+    'use_system_libxnvctrl%': 0,
+  },
+  'conditions': [
+    ['use_system_libxnvctrl==0', {
+      'targets': [
+        {
+          'target_name': 'libXNVCtrl',
+          'type': 'static_library',
+          'sources': [
+            'NVCtrl.c',
+            'NVCtrl.h',
+            'NVCtrlLib.h',
+            'nv_control.h',
+          ],
+        },
       ],
-    },
-  ],
+    }, { # use_system_libxnvctrl==1
+      'conditions': [
+        ['sysroot!=""', {
+          'variables': {
+            'pkg-config': '../../build/linux/pkg-config-wrapper "<(sysroot)" "<(target_arch)"',
+          },
+        }, {
+          'variables': {
+            'pkg-config': 'pkg-config'
+          },
+        }],
+      ],
+      'targets': [
+        {
+          'target_name': 'libXNVCtrl',
+          'type': 'none',
+          'direct_dependent_settings': {
+            'cflags': [
+                '<!@(<(pkg-config) --cflags libXNVCtrl)',
+            ],
+          },
+          'link_settings': {
+            'ldflags': [
+              '<!@(<(pkg-config) --libs-only-L --libs-only-other libXNVCtrl)',
+            ],
+            'libraries': [
+              '<!@(<(pkg-config) --libs-only-l libXNVCtrl)',
+            ],
+          },
+        }
+      ],
+    }],
+  ]
 }