Do not depend on or try to configure pangocairo when use_pango == 0

build/linux/system.gyp

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
   'variables': {
     'conditions': [
       ['sysroot!=""', {
         'pkg-config': '<(chroot_cmd) ./pkg-config-wrapper "<(sysroot)" "<(target_arch)" "<(system_libdir)"',
       }, {
@@ skipping 1092 matching lines @@
           'message': 'Generating libspeechd library loader',
           'process_outputs_as_sources': 1,
         },
       ],
     },
     {
       'target_name': 'pangocairo',
       'type': 'none',
       'toolsets': ['host', 'target'],
       'conditions': [
-        ['_toolset=="target"', {
-          'direct_dependent_settings': {
-            'cflags': [
-              '<!@(<(pkg-config) --cflags pangocairo pangoft2)',
-            ],
-          },
-          'link_settings': {
-            'ldflags': [
-              '<!@(<(pkg-config) --libs-only-L --libs-only-other pangocairo pangoft2)',
-            ],
-            'libraries': [
-              '<!@(<(pkg-config) --libs-only-l pangocairo pangoft2)',
-            ],
-          },
-        }, {
-          'direct_dependent_settings': {
-            'cflags': [
-              '<!@(pkg-config --cflags pangocairo pangoft2)',
-            ],
-          },
-          'link_settings': {
-            'ldflags': [
-              '<!@(pkg-config --libs-only-L --libs-only-other pangocairo pangoft2)',
-            ],
-            'libraries': [
-              '<!@(pkg-config --libs-only-l pangocairo pangoft2)',
-            ],
-          },
+        ['use_pango==1 and use_cairo==1', {
+          'conditions': [
+            ['_toolset=="target"', {
+              'direct_dependent_settings': {
+                'cflags': [
+                  '<!@(<(pkg-config) --cflags pangocairo pangoft2)',
+                ],
+              },
+              'link_settings': {
+                'ldflags': [
+                  '<!@(<(pkg-config) --libs-only-L --libs-only-other pangocairo pangoft2)',
+                ],
+                'libraries': [
+                  '<!@(<(pkg-config) --libs-only-l pangocairo pangoft2)',
+                ],
+              },
+            }, {
+              'direct_dependent_settings': {
+                'cflags': [
+                  '<!@(pkg-config --cflags pangocairo pangoft2)',
+                ],
+              },
+              'link_settings': {
+                'ldflags': [
+                  '<!@(pkg-config --libs-only-L --libs-only-other pangocairo pangoft2)',
+                ],
+                'libraries': [
+                  '<!@(pkg-config --libs-only-l pangocairo pangoft2)',
+                ],
+              },
+            }],
+          ],
         }],
       ],
     },
     {
       'target_name': 'ssl',
       'type': 'none',
       'conditions': [
         ['_toolset=="target"', {
           'conditions': [
             ['use_openssl==1', {
@@ skipping 32 matching lines @@
                   '-Wno-header-guard',
                 ],
               },
             }],
           ]
         }],
       ],
     },
   ],
 }