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+====== Installing GnuRadio from source on Debian Jessie ======
+<note important>This page is now obsolete - Debian Jessie is oldstable and there are good GnuRadio packages in current versions.</note>
+It's easy!
+Fortunately, there are now new packages in Debian Testing/Unstable (reportedly working well) and Ubuntu 16.04. There are backports in Jessie too, but [[https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=822659|only on the amd64 architecture]].
+Please see [[:rpi-gcc]] if you are compiling on Raspbian.
+You need 1.2 GB RAM for linking. This means that you cannot link it on Raspberry Pi 2 or CubieBoard. Use local swap, NBD swap or cross-compiling (FIXME) for it (scroll down for more info).
+After installation is complete, run volk_profile (or volk_profile -i 512 on slow machines). It will benchmark and select the best vectorized kernels for your machine. Speedups of 150-190 % have been reported.
+<note warning>grcc s broken in current master, patch and more info [[:kukuruku:guide#client|here]].</note>
+<note tip>This patch for gr-osmosdr works around current bug in gnuradio: https://gnuradio.org/redmine/issues/775</note>
+<code>diff --git a/grc/gen_osmosdr_blocks.py b/grc/gen_osmosdr_blocks.py
+index d29de3e..822dbb8 100644
+--- a/grc/gen_osmosdr_blocks.py
++++ b/grc/gen_osmosdr_blocks.py
+@@ -457,6 +457,7 @@ def parse_tmpl(_tmpl, **kwargs):
+ max_num_mboards = 8
+ max_num_channels = max_num_mboards*4
++max_num_channels = 4
+ import os.path
+</code>
+<code>
+### rtl-sdr
+sudo apt-get install git build-essential cmake libusb-1.0-0-dev
+## Ubuntu 14.04:
+sudo apt-get install libasound2-dev
+git clone git://git.osmocom.org/rtl-sdr
+cd rtl-sdr/
+mkdir build
+cd build
+#cmake .. -DINSTALL_UDEV_RULES=ON -DDETACH_KERNEL_DRIVER=ON
+cmake ..
+make
+sudo make install
+cd ../..
+echo "blacklist dvb_usb_rtl28xxu rtl2830 rtl2832" > /etc/modprobe.d/rtl.conf
+### gnuradio
+# basic
+sudo apt-get install python-cheetah libboost-all-dev swig2.0 python-pkgconfig liborc-0.4-dev libfftw3-dev libasound2-dev libzmq-dev libgsl0-dev python-sphinx libcppunit-dev libgsm1-dev python-numpy libgsl0-dev python-mako
+# On Debian Sid, install libgsl-dev instead of libgsl0-dev
+# to get documentation
+sudo apt-get install doxygen
+# to get Qt4 GUI blocks
+sudo apt-get install python-qt4 libqt4-dev python-qwt5-qt4
+# to get GTK GUI blocks
+sudo apt-get install python-wxgtk3.0
+## Ubuntu 14.04:
+sudo apt-get install python-cheetah libboost-dev libboost-all-dev libfftw3-dev swig
+# for GUI (optional)
+sudo apt-get install libxml2-dev libzmq3-dev python-gtk2-dev python-numpy libxml++2.6-dev python-lxml\
+ libwxgtk3.0-dev python-qwt5-qt4 pyqt4-dev-tools python3-pyqt4 python-gtk2
+git clone http://git.gnuradio.org/git/gnuradio.git
+cd gnuradio/
+git submodule init
+git submodule update
+cd volk
+mkdir build
+cd build
+cmake ..
+make
+sudo make install
+cd ../..
+mkdir build
+cd build
+cmake -DENABLE_DOXYGEN=OFF ..
+# There is currently conflict with UHD and Boost in Debian Sid. Use -DENABLE_GR_UHD=OFF
+# if you don't need UHD and have problems with linking.
+make
+# if you have enought RAM (8GiB +) you can make it much faster
+# make -j 4
+sudo make install
+cd ../..
+### Optional: bladeRF
+git clone https://github.com/Nuand/bladeRF.git
+cd bladeRF/host
+mkdir build
+cd build
+cmake ..
+make -j 2
+sudo make install
+cd ../../..
+### Optional: hackrf
+git clone https://github.com/mossmann/hackrf
+cd hackrf/host
+mkdir build
+cd build
+cmake ..
+make -j 2
+sudo make install
+cd ../../..
+### osmosdr
+git clone git://git.osmocom.org/gr-osmosdr
+cd gr-osmosdr/
+mkdir build
+cd build
+cmake ..
+make
+sudo make install
+cd ../..
+### optional: airspy
+git clone https://github.com/airspy/host/
+mv host airspy
+cd airspy/
+mkdir build
+cd build
+cmake ..
+make
+sudo make install
+cd ../..
+### gqrx
+sudo apt-get install qt5-qmake
+git clone git://github.com/csete/gqrx.git
+cd gqrx
+qmake .
+make
+### dsd
+git clone git://github.com/szechyjs/mbelib.git
+cd mbelib
+mkdir build
+cd build
+cmake ..
+make
+sudo make install
+cd ../..
+wget -O itpp-latest.tar.bz2 http://sourceforge.net/projects/itpp/files/latest/download?source=files
+tar xjf itpp-latest.tar.bz2
+cd itpp-*
+mkdir build && cd build
+cmake ..
+make -j
+sudo make install
+sudo apt-get install libsndfile1-dev fftw3-dev liblapack-dev portaudio19-dev
+git clone git://github.com/szechyjs/dsd.git
+cd dsd
+mkdir build
+cd build
+cmake ..
+make
+sudo make install
+cd ../..
+### multimon-ng
+sudo apt-get install libpulse-dev
+git clone git://github.com/EliasOenal/multimon-ng.git
+cd multimon-ng
+mkdir build
+cd build
+qmake ../multimon-ng.pro PREFIX=/usr/local
+make
+sudo make install
+</code>
+===== Low memory fun =====
+It is not possible to link it on systems with 1 GB RAM. Unfortunately, this is what most ARM boards have.
+Except for nbd swap, you can try mounting the filesystem on some other machine. But it's probably not ARM and cross-compiling is PITA (you need for example the entire armhf Boost!). You can run ARM code in Qemu software emulator. This is going to be slow. Do <code>cp /usr/bin/qemu-arm-static /mnt/foo/usr/bin</code> and then just chroot there and run compilation as usual.
+===== Prebuilt binaries =====
+I will occasionally release prebuilt binaries (rtl-sdr + gnuradio). They are compiled with -march=armv7-a -mfloat-abi=hard -mfpu=vfpv3-d16 and were tested on Debian Jessie on Radxa Rock Pro and Orange Pi PC. RaspberryPi should have the very same architecture.
+http://jenda.hrach.eu/brm/rad/gnuradio-arm/