Check the ibus version in build script.

build/linux/system.gyp

Index: build/linux/system.gyp
diff --git a/build/linux/system.gyp b/build/linux/system.gyp
index cbe5194086ffcd27a9ce9d039b1b2d098bd06f42..ed264b35f76a35b97b7bb81404c0a1b05d4eb6e9 100644
--- a/build/linux/system.gyp
+++ b/build/linux/system.gyp
@@ -351,18 +351,21 @@
       'type': 'settings',
       'conditions': [
         ['use_ibus==1', {
+          'variables': {
+            'ibus_version': '1.3.99.20110425',

[Mark Mentovai, 2011/05/02 17:51:39]

ibus_version sounds like it’s the version of ibus in use. Maybe call this
ibus_min_version.

[Peng, 2011/05/02 18:12:29]

Done.

+          },
           'direct_dependent_settings': {
             'defines': ['HAVE_IBUS=1'],
             'cflags': [
-              '<!@(<(pkg-config) --cflags ibus-1.0)',
+              '<!@(<(pkg-config) --cflags "ibus-1.0 >= <(ibus_version)")',
             ],
           },
           'link_settings': {
             'ldflags': [
-              '<!@(<(pkg-config) --libs-only-L --libs-only-other ibus-1.0)',
+              '<!@(<(pkg-config) --libs-only-L --libs-only-other "ibus-1.0 >= <(ibus_version)")',
             ],
             'libraries': [
-              '<!@(<(pkg-config) --libs-only-l ibus-1.0)',
+              '<!@(<(pkg-config) --libs-only-l "ibus-1.0 >= <(ibus_version)")',
             ],
           },
         }],