/* In exactly what version did it change? */
#if defined(__GNUC__) &amp;&amp; (__GNUC__ &lt; 2  || (__GNUC__==2 &amp;&amp;__GNUC_MINOR__ &lt;= 95))
/* What else could I have intended  */
#define VARMACRO
#define OLDGCCVARMACRO
#endif