title: Building OpenImageIO on Kubuntu 14.10: make error
body: <p>bit of a newbie to Ubuntu here and this has really been confusing me.</p>
  
  <p>Currently trying to build OpenImageIO using make, following the steps outlined here: <a href="https://sites.google.com/site/openimageio/checking-out-and-building-openimageio" rel="nofollow">https://sites.google.com/site/openimageio/checking-out-and-building-openimageio</a></p>
  
  <p>As far as I'm aware, I have installed all of the dependencies, however trying to run make gives me the following error:</p>
  
  <pre><code>platform=linux64, hw=x86_64
  OPENIMAGEIO_SITE = shanesimmsart-pc
  dist_dir = dist/linux64
  INSTALLDIR = /home/shanesimmsart/oiio
  ( cd build/linux64 ; make  )
  make[1]: Entering directory `/home/shanesimmsart/oiio/build/linux64'
  make[2]: Entering directory `/home/shanesimmsart/oiio/build/linux64'
  make[3]: Entering directory `/home/shanesimmsart/oiio/build/linux64'
  make[3]: Leaving directory `/home/shanesimmsart/oiio/build/linux64'
  make[3]: Entering directory `/home/shanesimmsart/oiio/build/linux64'
  [  0%] Building CXX object src/libutil/CMakeFiles/OpenImageIO_Util.dir/strutil.cpp.o
  /home/shanesimmsart/oiio/src/libutil/strutil.cpp: In function ‘OpenImageIO::v1_6::string_view OpenImageIO::v1_6::Strutil::parse_nested(OpenImageIO::v1_6::string_view&amp;, bool)’:
  /home/shanesimmsart/oiio/src/libutil/strutil.cpp:768:28: error: comparison between signed and unsigned integer expressions [-Werror=sign-compare]
       for ( ; nesting &amp;&amp; len &lt; p.size(); ++len) {
                              ^
  cc1plus: all warnings being treated as errors
  make[3]: *** [src/libutil/CMakeFiles/OpenImageIO_Util.dir/strutil.cpp.o] Error 1
  make[3]: Leaving directory `/home/shanesimmsart/oiio/build/linux64'
  make[2]: *** [src/libutil/CMakeFiles/OpenImageIO_Util.dir/all] Error 2
  make[2]: Leaving directory `/home/shanesimmsart/oiio/build/linux64'
  make[1]: *** [all] Error 2
  make[1]: Leaving directory `/home/shanesimmsart/oiio/build/linux64'
  make: *** [cmake] Error 2
  </code></pre>
  
  <p>Does anyone have any idea what I might be doing wrong / might be missing?</p>