# Gnu radio install problems CMake Error with UHD\_LIBRARIES

**URL:** <https://www.ruby-forum.com/t/gnu-radio-install-problems-cmake-error-with-uhd-libraries/243018>\
**Category:** GNU Radio\
**Created:** [August 15, 2015, 12:50am UTC](https://www.ruby-forum.com/t/gnu-radio-install-problems-cmake-error-with-uhd-libraries/243018 "2015-08-15T00:50:52Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Rafa\_F](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/958977/32.png) [@Rafa\_F](https://www.ruby-forum.com/u/Rafa_F)\
**Post date:** [August 15, 2015, 12:50am UTC](https://www.ruby-forum.com/t/gnu-radio-install-problems-cmake-error-with-uhd-libraries/243018/1 "2015-08-15T00:50:52Z")

</div>

Hi I’m trying to install gnuradio and I have used the following command  
to  
retrieve the source code (after yum install gnuradio resulted in “no  
package gnuradio available”): git clone --recursive git://  
[git.gnuradio.org/gnuradio](http://git.gnuradio.org/gnuradio)  
After making the build directory, cd to build, and the following command  
cmake …/, this is the result:

# Gnuradio disabled components

## – ###################################################### – \* sphinx – \* gr-ctrlport – \* gr-comedi – \* gr-video-sdl – \* gr-zeromq

– Using install prefix: /usr/local  
– Building for version: 3.7.8 / 3.7.8  
CMake Error: The following variables are used in this project, but they  
are  
set to NOTFOUND.  
Please set them or make sure they are set and tested correctly in the  
CMake  
files:  
UHD\_LIBRARIES  
linked by target “gnuradio-uhd” in directory  
/home/alneale/gnuradio/gr-uhd/lib  
linked by target “\_uhd\_swig” in directory  
/home/alneale/gnuradio/gr-uhd/swig

– Configuring incomplete, errors occurred!  
See also “/home/alneale/gnuradio/build/CMakeFiles/CMakeOutput.log”.  
See also “/home/alneale/gnuradio/build/CMakeFiles/CMakeError.log”.

I got the same error from trying to use the build-gnuradio.sh script.  
I tried to set the variable in the CMakeLists.txt file but that did not  
work, I’m not sure I was modifying the right file or using the right  
syntax.  
I am running CentOS 6.7 on a 32 bit pentium machine.  
Thanks