title: GLPK: No such file or directory error when trying to install R package
body: <p>I am trying to install <code>sparkTable</code> in R 3.1.0 which depends on <code>Rglpk</code>. I manually installed GPLK on the system and added the libs folder to <code>LD_LIBRARY_PATH</code> before going into R for the <code>install.packages("sparkTable")</code> procedure. I get this error during the installation process. Any ideas?</p>
  
  <pre><code>* installing *source* package ‘Rglpk’ ...
  ** package ‘Rglpk’ successfully unpacked and MD5 sums checked
  ** libs
  /bin/sh: line 0: cd: GLPK: No such file or directory
  make: *** [GLPK.ts] Error 1
  ERROR: compilation failed for package ‘Rglpk’
  * removing ‘/opt/R/R-3.1.0/lib64/R/library/Rglpk’
  ERROR: dependency ‘Rglpk’ is not available for package ‘sparkTable’
  * removing ‘/opt/R/R-3.1.0/lib64/R/library/sparkTable’
  </code></pre>