#define C_ALIAS 105 /* duplicate tag */
#define C_HIDDEN 106 /* ext symbol in dmert public lib */
-#define C_WEAKEXT 127 /* weak symbol -- GNU extension */
+#if defined _AIX52 || defined AIX_WEAK_SUPPORT
+#define C_WEAKEXT 111 /* weak symbol -- AIX standard. */
+#else
+#define C_WEAKEXT 127 /* weak symbol -- GNU extension. */
+#endif
/* New storage classes for TI COFF */
#define C_UEXT 19 /* Tentative external definition */