CvMETHOD_on(PL_compcv);
else if (!PL_in_my && len == 9 && strnEQ(s, "assertion", len))
CvASSERTION_on(PL_compcv);
-#ifdef USE_ITHREADS
else if (PL_in_my == KEY_our && len == 6 &&
strnEQ(s, "unique", len))
+#ifdef USE_ITHREADS
GvUNIQUE_on(cGVOPx_gv(yylval.opval));
+#else
+ ; /* skip that case to avoid loading attributes.pm */
#endif
/* After we've set the flags, it could be argued that
we don't need to do the attributes.pm-based setting