Fix warnings reported by GCC on RHEL 7/8/9/10

- Reorder constructor initializer list in SipCtrlInterface to match
  member declaration order, fixing -Wreorder on all RHEL versions
- Add GCC version check (__GNUC__ >= 8) for -Wclass-memaccess pragma
  in sip_parser_async.h, fixing -Wpragmas on RHEL 7 (GCC 4.8)
- Fix format specifier in codec2.c: %s -> %d for int argument,
  fixing -Wformat and a runtime bug on all platforms

Author: Marcel Hecko

core/SipCtrlInterface.cpp

@@ -256,8 +256,8 @@ int _SipCtrlInterface::load()
 }
 
 _SipCtrlInterface::_SipCtrlInterface()
-    : on_idle_cb(NULL),
-      stopped(false),
+    : stopped(false),
+      on_idle_cb(NULL),
       nr_udp_sockets(0), udp_sockets(NULL),
       nr_udp_servers(0), udp_servers(NULL),
       nr_tcp_sockets(0), tcp_sockets(NULL),

core/SipCtrlInterface.h

@@ -63,7 +63,7 @@ class _SipCtrlInterface:
     friend class udp_trsp;
 
     AmCondition<bool> stopped;
-    
+
     unsigned short    nr_udp_sockets;
     udp_trsp_socket** udp_sockets;
 

core/plug-in/codec2/codec2.c

@@ -98,7 +98,7 @@ long sems_codec2_create(const int bps,
   } else if (bps == 1400) {
     mode = CODEC2_MODE_1400;
   } else {
-    ERROR("Error in mode: %s\n", bps);
+    ERROR("Error in mode: %d\n", bps);
     ERROR("Mode must be 3200, 2400, 1600 or 1400\n");
     free(c2enc);
     return -1;

core/sip/sip_parser_async.h

@@ -30,7 +30,7 @@ struct parser_state
 
   void reset_hdr_parser() {
 #pragma GCC diagnostic push
-#if defined(__GNUC__) && !defined(__clang__)
+#if defined(__GNUC__) && !defined(__clang__) && (__GNUC__ >= 8)
 #pragma GCC diagnostic ignored "-Wclass-memaccess"
 #endif
     memset(&hdr,0,sizeof(sip_header));