cleanup/fix Qt5 related deps

and create 'bluetooth' feature macro to enable experimental
bluetooth support (default off)

kde-connect.spec

@@ -1,6 +1,10 @@
+
+# enable experimental (default off) bluetooth support
+#global bluetooth 1
+
 Name:           kde-connect
 Version:        1.4
-Release:        2%{?dist}
+Release:        0.2%{?dist}
 License:        GPLv2+
 Summary:        KDE Connect client for communication with smartphones
 
@@ -35,8 +39,16 @@ BuildRequires:  kf5-knotifications-devel
 BuildRequires:  kf5-kwayland-devel
 
 BuildRequires:  qt5-qtbase-devel
-BuildRequires:  qt5-qtdeclarative-devel
-BuildRequires:  qt5-qtx11extras-devel
+
+%if 0%{?bluetooth}
+BuildRequires:  cmake(Qt5Bluetooth)
+%endif
+BuildRequires:  cmake(Qt5DBus)
+BuildRequires:  cmake(Qt5Multimedia)
+BuildRequires:  cmake(Qt5Network)
+BuildRequires:  cmake(Qt5Quick)
+BuildRequires:  cmake(Qt5Test)
+BuildRequires:  cmake(Qt5X11Extras)
 
 BuildRequires:  cmake(KF5PulseAudioQt)
 
@@ -103,7 +115,8 @@ Supplements: (kdeconnectd and nautilus)
 %build
 mkdir %{_target_platform}
 pushd %{_target_platform}
-%{cmake_kf5} ..
+%{cmake_kf5} .. \
+  %{?bluetooth:-DBLUETOOTH_ENABLED:BOOL=ON}
 popd
 
 %make_build -C %{_target_platform}