title: Please explain this linking error: referenced in section .rodata
body: <p>I am doing a build on a 32bit SLES10 machine. Using GCC 3.4.2</p>
  
  <p>Here is a sample error</p>
  
  <pre><code>`.L8245' referenced in section `.rodata' of CMakeFiles/myproj.dir/c++/util/MyObj.o: defined in discarded section
   `.gnu.linkonce.t._ZN5boost9re_detail9reg_grep2INS0_21grep_search_predicateIPKcSaIcEEES4_cNS_12regex_traitsIcEES5_S5_EEjT_T0_SA_RKNS_14reg_expressionIT1_T2_T3_EEjT4_' of CMakeFiles/myproj.dir/c++/util/MyObj.o
  </code></pre>