I'm trying to get a RTL-SDR source block (or osmo sdr, since they both work) in GNU Radio, and it apparently must be obtained via the following command lines:
git clone git://git.osmocom.org/gr-osmosdr
cd gr-osmosdr/
mkdir build
cd build/
cmake ../
I do as suggested, but when I run the last line I get the following error
No package 'mpir' found
-- Could NOT find MPIR (missing: MPIRXX_LIBRARY MPIR_LIBRARY MPIR_INCLUDE_DIR) 
Among others:
Checking for module 'fftw3f >= 3.0'
Found fftw3f , version 3.3.8
 Found FFTW3f: /usr/lib/x86_64-linux-gnu/libfftw3f.so  
 Checking for module 'libosmodsp'
   No package 'libosmodsp' found
 libosmodsp not found.
 libosmodsp not found, using local checkout
 Could NOT find Doxygen (missing: DOXYGEN_EXECUTABLE) 
 Using install prefix: /usr/local
 Building for version: 3.8.0.0 / 3.8.0
 No C++ unit tests... skipping 
 Checking for module SWIG
 Disabling SWIG because version check failed.
CMake Error at lib/CMakeLists.txt:30 (add_library):
  Cannot find source file:
    /home/hubp/Downloads/libosmo-dsp/src/cxvec.c
  Tried extensions .c .C .c++ .cc .cpp .cxx .cu .m .M .mm .h .hh .h++ .hm
  .hpp .hxx .in .txx
CMake Error at lib/CMakeLists.txt:30 (add_library):
  No SOURCES given to target: gnuradio-iqbalance
CMake Generate step failed.  Build files cannot be regenerated correctly.
I suspect I might be missing some dependencies but I can't understand what they are or how to get them. Thanks for any help
 
                        
Okay I got it!
This guy goes over the required libraries
https://www.youtube.com/watch?v=2IWtEkAHXFI
I was missing swig, and afterwards I was also missing liborc-0.4-dev
They can be installed via:
Please note that despite helping my case in particular, this video predates the release of GNU Radio 3.8 by several years, and really does not reflect GNU Radio's current requirements.