diff --git a/build_num b/build_num
index e173e85c7..92043abe8 100644
--- a/build_num
+++ b/build_num
@@ -1 +1 @@
-#define BUILD_NUM 1579
+#define BUILD_NUM 1580
diff --git a/config_tests/qtdbus_test.pro b/config_tests/qtdbus_test.pro
new file mode 100644
index 000000000..3a6de137f
--- /dev/null
+++ b/config_tests/qtdbus_test.pro
@@ -0,0 +1,13 @@
+# -*- mode: makefile; tab-width: 4; -*-
+TEMPLATE = app
+unix {
+  macx {
+      LIBS += -framework QtDBus
+  }
+  !macx {
+      # workaround for QT += dbus not working atm
+      LIBS += -lQtDBus
+  }
+}
+SOURCES = qtdbus_test.cpp
+TARGET = qtdbus_test
diff --git a/configure.in b/configure.in
index 2acff9b68..327cef036 100644
--- a/configure.in
+++ b/configure.in
@@ -270,34 +270,31 @@ AC_SUBST(HAVE_EXTERNAL_ANTLR)
 AC_SUBST(ANTLR_LIBS)
 AC_SUBST(ANTLR_INCLUDEPATH)
 
-# TODO: Probably need to repackage this as Autoconf macro
+# TODO: Probably need to repackage this as Autoconf macro.
+#
+# QT DBus framework is not always available. It is not included in QT
+# for Windows and is missing in QT 4.5.3 Commercial package for Mac OS
+# X 10.6 SnowLeopard (but it is present in QT 4.4.1 Commercial for
+# Mac OS X 10.5 Leopard. Go figure.)
+#
 AC_MSG_CHECKING(QT DBus framework)
 ( cd config_tests
-  cat <<EOF > test.pro
-  TEMPLATE = app
-  unix {
-    macx {
-        LIBS += -framework QtDBus
-    }
-    !macx {
-        # workaround for QT += dbus not working atm
-        LIBS += -lQtDBus
-    }
-  }
-  SOURCES = qtdbus_test.cpp
-  TARGET = qtdbus_test
-EOF
   C=""
   test -n "$QMAKESPEC" && C="$C -spec $QMAKESPEC "
-  $QMAKE $C test.pro
+  $QMAKE $C qtdbus_test.pro || exit 1
   test -f Makefile || exit 1
-  make >config.log 2>&1 ) && {
+  make >config.log 2>&1
+)
+if test $? -eq 0; then
+  HAVE_QTDBUS="1"
   AC_MSG_RESULT(ok)
   AC_DEFINE_UNQUOTED(HAVE_QTDBUS, 1, [qtdbus])
-  AC_SUBST(HAVE_QTDBUS)
-} || {
+else
+  HAVE_QTDBUS="0"
   AC_MSG_RESULT(not available)
-}
+  AC_DEFINE_UNQUOTED(HAVE_QTDBUS, 0, [qtdbus])
+fi
+AC_SUBST(HAVE_QTDBUS)
 
 dnl ********************************************************************
 
diff --git a/qmake.inc.in b/qmake.inc.in
index d43c04179..52a6cc429 100644
--- a/qmake.inc.in
+++ b/qmake.inc.in
@@ -13,6 +13,7 @@ DOCDIR = @DOCDIR@
 
 HAVE_ANTLR_RUNTIME = @HAVE_ANTLR_RUNTIME@
 HAVE_EXTERNAL_ANTLR = @HAVE_EXTERNAL_ANTLR@
+HAVE_QTDBUS = @HAVE_QTDBUS@
 
 unix {
     PREFIX = @PREFIX@
diff --git a/src/fwtransfer/TransferDevice.cpp b/src/fwtransfer/TransferDevice.cpp
index 0cbcd3a28..4050ba11c 100644
--- a/src/fwtransfer/TransferDevice.cpp
+++ b/src/fwtransfer/TransferDevice.cpp
@@ -32,6 +32,7 @@ using namespace libfwbuilder;
 #ifdef HAVE_QTDBUS
 
 #include <QtDBus/QtDBus>
+#include <QtDBus/QDBusConnection>
 
 QVariant getProperty(QDBusInterface &interface, QString prop)
     throw(FWException)
diff --git a/src/gui/gui.pro b/src/gui/gui.pro
index c5be0f25a..aea2bd42a 100644
--- a/src/gui/gui.pro
+++ b/src/gui/gui.pro
@@ -13,10 +13,15 @@ include(../../qmake.inc)
 
 exists(qmake.inc):include( qmake.inc)
 
-unix {
-  !macx {
-# workaround for QT += dbus not working atm
+contains( HAVE_QTDBUS, 1 ) { 
+  unix {
+    macx {
+        LIBS += -framework QtDBus
+    }
+    !macx {
+        # workaround for QT += dbus not working atm
         LIBS += -lQtDBus
+    }
   }
 }
 
diff --git a/src/transfer_agents/secuwall/secuwall.pro b/src/transfer_agents/secuwall/secuwall.pro
index 7e8d01bad..0b2338504 100644
--- a/src/transfer_agents/secuwall/secuwall.pro
+++ b/src/transfer_agents/secuwall/secuwall.pro
@@ -7,10 +7,15 @@ SOURCES = transfer_secuwall.cpp
 
 HEADERS = ../../../config.h
 
-unix {
-  !macx {
-# workaround for QT += dbus not working atm
+contains( HAVE_QTDBUS, 1 ) { 
+  unix {
+    macx {
+        LIBS += -framework QtDBus
+    }
+    !macx {
+        # workaround for QT += dbus not working atm
         LIBS += -lQtDBus
+    }
   }
 }