title: How to fix Error : ld: cannot find /usr/lib64/crt1.o: No such file or directory
body: <p>I was trying to compile my fortran code
  following error generated</p>
  
  <pre><code>sfanwer@genesis ~/WORK/NNF/anwar/re40_n1 $ ifort new_nnfsossip.for -o new.x
  
  
  ld: cannot find /usr/lib64/crti.o: No such file or directory
  ld: cannot find -lm
  ld: cannot find -lpthread
  ld: cannot find -lc
  ld: cannot find -ldl
  ld: cannot find -lc
  ld: cannot find /usr/lib64/crtn.o: No such file or directory
  </code></pre>
  
  <p>i tried to check whether ifort is installed or not</p>
  
  <pre><code>sfanwer@genesis ~/WORK/NNF/anwar/re40_n1 $ ifort -v
  ifort version 15.0.3
  </code></pre>
  
  <p>Hence it is installed</p>