diff --git a/fcitx-4.2.6-openSUSE-12.1-QDBusConnection.patch b/fcitx-4.2.6-openSUSE-12.1-QDBusConnection.patch
new file mode 100644
index 0000000..e98abca
--- /dev/null
+++ b/fcitx-4.2.6-openSUSE-12.1-QDBusConnection.patch
@@ -0,0 +1,55 @@
+diff --git a/src/frontend/qt/fcitx-input-context.cpp b/src/frontend/qt/fcitx-input-context.cpp
+index 5ba941b..6e5a9d9 100644
+--- a/src/frontend/qt/fcitx-input-context.cpp
++++ b/src/frontend/qt/fcitx-input-context.cpp
+@@ -113,11 +113,37 @@ typedef QInputMethodEvent::Attribute QAttribute;
+ 
+ static bool key_filtered = false;
+ 
++QByteArray QFcitxInputContext::localMachineId()
++{
++#if QT_VERSION >= QT_VERSION_CHECK(4, 8, 0)
++    return QDBusConnection::localMachineId();
++#else
++    QFile file1("/var/lib/dbus/machine-id");
++    QFile file2("/etc/machine-id");
++    QFile* fileToRead = NULL;
++    if (file1.open(QIODevice::ReadOnly)) {
++        fileToRead = &file1;
++    }
++    else if (file2.open(QIODevice::ReadOnly)) {
++        fileToRead = &file2;
++    }
++    if (fileToRead) {
++        QByteArray result = fileToRead->readLine(1024);
++        fileToRead->close();
++        result = result.trimmed();
++        if (!result.isEmpty())
++            return result;
++    }
++    return "machine-id";
++#endif
++}
++
+ QString
+ QFcitxInputContext::socketFile()
+ {
+     char* addressFile = NULL;
+-    asprintf(&addressFile, "%s-%d", QDBusConnection::localMachineId().data(), fcitx_utils_get_display_number());
++
++    asprintf(&addressFile, "%s-%d", localMachineId().data(), fcitx_utils_get_display_number());
+ 
+     char* file = NULL;
+ 
+diff --git a/src/frontend/qt/fcitx-input-context.h b/src/frontend/qt/fcitx-input-context.h
+index 6c7ecf4..ed7d2db 100644
+--- a/src/frontend/qt/fcitx-input-context.h
++++ b/src/frontend/qt/fcitx-input-context.h
+@@ -102,6 +102,7 @@ private Q_SLOTS:
+     void updateCursor();
+ #endif
+ private:
++    static QByteArray localMachineId();
+     static QString socketFile();
+     static QString address();
+     void cleanUp();
diff --git a/fcitx.changes b/fcitx.changes
index 2a2f503..9ef61d9 100644
--- a/fcitx.changes
+++ b/fcitx.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Sun Sep 23 13:32:25 UTC 2012 - i@marguerite.su
+
+- fix openSUSE 12.1 and below build
+  * 4.2.6 uses a Qt 4.8+ only function (QDBusConnection) so it fails on 12.1 and below.
+  * weng fix it.
+
 -------------------------------------------------------------------
 Sat Sep 15 18:04:19 UTC 2012 - i@marguerite.su
 
diff --git a/fcitx.spec b/fcitx.spec
index 1d819ea..dc36dfb 100644
--- a/fcitx.spec
+++ b/fcitx.spec
@@ -38,6 +38,8 @@ Source7:        xinput-fcitx
 Source8:        openSUSE-default.tar.gz
 #FIX-FOR-UPSTREAM i@marguerite.su - dont download online
 #Patch1:         fix_fcitx_googlecode_resolv_error.patch
+#FIX-FOR-OPENSUSE wengxt@gmail.com - fix QDBusConnection in Qt 4.7
+Patch2:         fcitx-4.2.6-openSUSE-12.1-QDBusConnection.patch
 BuildRequires:  cairo-devel
 %if 0%{?suse_version}
 BuildRequires:  dbus-1-devel
@@ -358,6 +360,9 @@ You can either use this package for download from kde-look.org using knewstaff i
 %prep
 %setup -q -n %{name}-%{version}
 #%patch1 -p1
+%if 0%{?suse_version} <= 1210
+%patch2 -p1
+%endif
 
 %build
 mkdir build