sim: mark osim_msgb_cb as __may_alias__ to avoid gcc warnings
diff --git a/include/osmocom/sim/sim.h b/include/osmocom/sim/sim.h
index e1e9997..4e63905 100644
--- a/include/osmocom/sim/sim.h
+++ b/include/osmocom/sim/sim.h
@@ -54,7 +54,7 @@
uint16_t lc; /*!< number of bytes in the command data field Nc, which will encoded in 0, 1 or 3 bytes into Lc, depending on the case */
uint16_t le; /*!< maximum number of bytes expected in the response data field, which will encoded in 0, 1, 2 or 3 bytes into Le, depending on the case */
uint16_t sw; /*!< status word, composed of SW1 and SW2 bytes */
-};
+} __attribute__((__may_alias__));
#define OSIM_MSGB_CB(__msgb) ((struct osim_msgb_cb *)&((__msgb)->cb[0]))
/*! \brief status word from msgb->cb */
#define msgb_apdu_case(__x) OSIM_MSGB_CB(__x)->apduc