<div>Hello,</div>
<div> </div>
<div>I am a MBA student at Rensselaer Polytechnic Institute in Troy, NY.  I wanted to use ipopt to perform mean-variance optimization. I have downloaded version 3.5.4 and also downloaded all the required thirdparty software. However, when I start to build the code, the get following error.<br>
<br>directory -<br>/LPOPT/Ipopt-3.5.4/Ipopt/src/Apps/AmplSolver <br><br><br>../../Interfaces/.libs/libipopt.so: undefined reference to `s_stop&#39;<br>../../Interfaces/.libs/libipopt.so: undefined reference to `s_wsfe&#39;<br>
../../Interfaces/.libs/libipopt.so: undefined reference to `s_cmp&#39;<br>../../Interfaces/.libs/libipopt.so: undefined reference to `e_wsfe&#39;<br>../../Interfaces/.libs/libipopt.so: undefined reference to `pow_di&#39;<br>
../../Interfaces/.libs/libipopt.so: undefined reference to `i_nint&#39;<br>../../Interfaces/.libs/libipopt.so: undefined reference to `s_copy&#39;<br>../../Interfaces/.libs/libipopt.so: undefined reference to `d_sign&#39;<br>
../../Interfaces/.libs/libipopt.so: undefined reference to `do_fio&#39;<br>collect2: ld returned 1 exit status<br><br><br>Any help is truly appreciated.<br><br></div>
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<div>Sincerely,</div>
<font color="#888888">
<div>Suresh Pamujula<br></div>

<div>Rensselaer Polytechnic Institute</div></font>