sock: ignore -Wtypedef-redefinition for LLVM where needed

net/sock/async/types.h included by net/sock.h needs to re-typedef the
the sock types to prevent cyclic includes.

sys/include/net/sock/async/types.h

@@ -15,6 +15,12 @@
 extern "C" {
 #endif
 
+/* This header needs to re-typedef the sock types to prevent cyclic includes */
+#if defined (__clang__)
+# pragma clang diagnostic push
+# pragma clang diagnostic ignored "-Wtypedef-redefinition"
+#endif
+
 #if defined(SOCK_HAS_ASYNC) || defined(DOXYGEN)
 /**
  * @brief   Flag types to signify asynchronous sock events
@@ -133,11 +139,16 @@ typedef void (*sock_udp_cb_t)(sock_udp_t *sock, sock_async_flags_t type);
 #ifdef MODULE_SOCK_DTLS
 #include "sock_dtls_types.h"
 #endif  /* MODULE_SOCK_DTLS */
+
 #ifdef SOCK_HAS_ASYNC_CTX
 #include "sock_async_ctx.h"
 #endif
 #endif  /* defined(SOCK_HAS_ASYNC) || defined(DOXYGEN) */
 
+#if defined (__clang__)
+# pragma clang diagnostic pop
+#endif
+
 #ifdef __cplusplus
 }
 #endif

sys/include/net/sock/dtls.h

@@ -461,6 +461,13 @@
 #include <stdlib.h>
 #include <sys/types.h>
 
+/* net/sock/async/types.h included by net/sock.h needs to re-typedef the
+ * `sock_dtls_t` to prevent cyclic includes */
+#if defined (__clang__)
+# pragma clang diagnostic push
+# pragma clang diagnostic ignored "-Wtypedef-redefinition"
+#endif
+
 #include "net/sock.h"
 #include "net/sock/udp.h"
 #include "net/credman.h"
@@ -500,6 +507,10 @@ enum {
  */
 typedef struct sock_dtls sock_dtls_t;
 
+#if defined (__clang__)
+# pragma clang diagnostic pop
+#endif
+
 /**
  * @brief Information about a created session.
  */

sys/include/net/sock/ip.h

@@ -273,6 +273,13 @@
 #include <stdlib.h>
 #include <sys/types.h>
 
+/* net/sock/async/types.h included by net/sock.h needs to re-typedef the
+ * `sock_ip_t` to prevent cyclic includes */
+#if defined (__clang__)
+# pragma clang diagnostic push
+# pragma clang diagnostic ignored "-Wtypedef-redefinition"
+#endif
+
 #include "net/sock.h"
 
 #ifdef __cplusplus
@@ -287,6 +294,10 @@ extern "C" {
  */
 typedef struct sock_ip sock_ip_t;
 
+#if defined (__clang__)
+# pragma clang diagnostic pop
+#endif
+
 /**
  * @brief   Creates a new raw IPv4/IPv6 sock object
  *

sys/include/net/sock/tcp.h

@@ -303,6 +303,13 @@
 #include <stdlib.h>
 #include <sys/types.h>
 
+/* net/sock/async/types.h included by net/sock.h needs to re-typedef the
+ * `sock_tcp_t` and `sock_tcp_queue_t` to prevent cyclic includes */
+#if defined (__clang__)
+# pragma clang diagnostic push
+# pragma clang diagnostic ignored "-Wtypedef-redefinition"
+#endif
+
 #include "net/sock.h"
 
 #ifdef __cplusplus
@@ -327,6 +334,10 @@ typedef struct sock_tcp sock_tcp_t;
  */
 typedef struct sock_tcp_queue sock_tcp_queue_t;
 
+#if defined (__clang__)
+# pragma clang diagnostic pop
+#endif
+
 /**
  * @brief   Establishes a new TCP sock connection
  *

sys/include/net/sock/udp.h

@@ -273,6 +273,13 @@
 #include <stdlib.h>
 #include <sys/types.h>
 
+/* net/sock/async/types.h included by net/sock.h needs to re-typedef the
+ * `sock_ip_t` to prevent cyclic includes */
+#if defined (__clang__)
+# pragma clang diagnostic push
+# pragma clang diagnostic ignored "-Wtypedef-redefinition"
+#endif
+
 #include "net/sock.h"
 
 #ifdef __cplusplus
@@ -289,6 +296,10 @@ typedef struct _sock_tl_ep sock_udp_ep_t;   /**< An end point for a UDP sock obj
  */
 typedef struct sock_udp sock_udp_t;
 
+#if defined (__clang__)
+# pragma clang diagnostic pop
+#endif
+
 /**
  * @brief   Creates a new UDP sock object
  *