<div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Hi</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">I am trying to compile a C++ program with Qt that includes the line:</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Cbc_addCol(model, name, 0.0, 1.0, 0.0, 1, 0, NULL, NULL);</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">I am getting a compiler error on this line:<br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">'Cbc_addCol' was not declared in this scope<br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">I have included the "h" file at the top of the program:</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">#include "Cbc_C_Interface.h"</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">And I am linking with:</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">LIBS += -L/usr/lib/x86_64-linux-gnu -lCbc -lCbcSolver</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Both the files "libCbc.so" and "libCbcSolver.so" exist in that directory.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">What am I missing?</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Thanks<br></div></div>