<p>There are several ways to fix this problem:</p>
<ul>
- <li>Provide an external (non-inline) definition of <code>add</code>
- somewhere in your program.</li>
-
<li>Change <code>add</code> to a <code>static inline</code>
function. Static inline functions are always resolved within the
translation unit, so you won't have to add an external, non-inline
definition of the function elsewhere in your program.</li>
+ <li>Provide an external (non-inline) definition of <code>add</code>
+ somewhere in your program.</li>
+
<li>Compile with the GNU89 dialect by adding
<code>-std=gnu89</code> to the set of Clang options. This option is
only recommended if the program source cannot be changed or if the