gnuradio: add qtgui support

gr-qtgui provides a set of module to display time/frequency/waterfall.

Signed-off-by: Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/gnuradio/Config.in

@@ -67,7 +67,7 @@ config BR2_PACKAGE_GNURADIO_UTILS
 	help
 	  Misc python utilities
 
-comment "gr-fft, -filter, -analog, -channels, -digital, -trellis, -pager depends fftw's single precision"
+comment "gr-fft, -filter, -analog, -channels, -digital, -trellis, -pager, -qtgui depends fftw's single precision"
 	depends on !BR2_PACKAGE_FFTW_PRECISION_SINGLE
 
 if BR2_PACKAGE_FFTW_PRECISION_SINGLE
@@ -108,6 +108,16 @@ config BR2_PACKAGE_GNURADIO_PAGER
 	help
 	  FLEX pager decoder implementation blocks
 
+config BR2_PACKAGE_GNURADIO_QTGUI
+	bool "gr-qtgui"
+	depends on BR2_PACKAGE_PYTHON_PYQT
+	depends on BR2_PACKAGE_QWT
+	depends on BR2_PACKAGE_QT_STL
+	select BR2_PACKAGE_GNURADIO_FFT
+	select BR2_PACKAGE_GNURADIO_FILTER
+	help
+	  GNU Radio Qt scopes
+
 config BR2_PACKAGE_GNURADIO_TRELLIS
 	bool "gr-trellis support"
 	select BR2_PACKAGE_GNURADIO_DIGITAL

package/gnuradio/gnuradio.mk

@@ -120,6 +120,13 @@ else
 GNURADIO_CONF_OPTS += -DENABLE_PAGER=OFF
 endif
 
+ifeq ($(BR2_PACKAGE_GNURADIO_QTGUI),y)
+GNURADIO_DEPENDENCIES += python-pyqt qwt
+GNURADIO_CONF_OPTS += -DENABLE_GR_QTGUI=ON
+else
+GNURADIO_CONF_OPTS += -DENABLE_GR_QTGUI=OFF
+endif
+
 ifeq ($(BR2_PACKAGE_GNURADIO_TRELLIS),y)
 GNURADIO_CONF_OPTS += -DENABLE_GR_TRELLIS=ON
 else