../../../core/loader/elfloader-x86.c: In function 'elfloader_arch_relocate':
../../../core/loader/elfloader-x86.c:104:10: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
     addr -= (sectionaddress + rela->r_offset); /* -P */
          ^~
javac 1.8.0_191
org/contikios/cooja/corecomm/Lib1.java:40: error: cannot find symbol
public class Lib1 extends CoreComm {
                          ^
  symbol: class CoreComm
1 error
../../../../../6lbr-demo/6lbr-demo-main.c: In function 'process_thread_demo_6lbr_process':
../../../../../6lbr-demo/6lbr-demo-main.c:138:3: warning: implicit declaration of function 'rs232_set_input' [-Wimplicit-function-declaration]
   rs232_set_input(serial_line_input_byte);
   ^~~~~~~~~~~~~~~
../../../../../../apps/shell/shell-ping.c: In function 'process_thread_shell_ping_process':
../../../../../../apps/shell/shell-ping.c:147:3: warning: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
   printf("Sending ping...\n");
   ^~~~~~
../../../../../../apps/shell/shell-netstat.c: In function 'process_thread_shell_netstat_process':
../../../../../../apps/shell/shell-netstat.c:114:20: warning: unused variable 'conn' [-Wunused-variable]
   struct uip_conn *conn;
                    ^~~~
../../../../../../apps/shell/shell-netstat.c:113:7: warning: unused variable 'i' [-Wunused-variable]
   int i;
       ^
../../../../../../apps/shell/shell-netstat.c:112:8: warning: unused variable 'buf' [-Wunused-variable]
   char buf[BUFLEN];
        ^~~
At top level:
../../../../../../apps/shell/shell-netstat.c:87:20: warning: 'states' defined but not used [-Wunused-variable]
 static const char *states[] = {
                    ^~~~~~
../../../../../../apps/shell/shell-netstat.c:83:19: warning: 'proc_name' defined but not used [-Wunused-const-variable=]
 static const char proc_name[] = /*  "processes"*/
                   ^~~~~~~~~
../../../../../../apps/shell/shell-netstat.c:79:19: warning: 'tcp_name' defined but not used [-Wunused-const-variable=]
 static const char tcp_name[] = /*  "tcp-connections"*/
                   ^~~~~~~~
../../../../../../apps/shell/shell-netstat.c:76:19: warning: 'file_name' defined but not used [-Wunused-const-variable=]
 static const char file_name[] = /*  "file-stats"*/
                   ^~~~~~~~~
../../../../../../core/loader/elfloader-x86.c: In function 'elfloader_arch_relocate':
../../../../../../core/loader/elfloader-x86.c:104:10: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
     addr -= (sectionaddress + rela->r_offset); /* -P */
          ^~
../../../../../../core/net/ipv6/uip-icmp6.c: In function 'echo_reply_input':
../../../../../../core/net/ipv6/uip-icmp6.c:308:3: warning: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
   printf("Received an icmp6 echo reply\n");
   ^~~~~~
javac 1.8.0_191
org/contikios/cooja/corecomm/Lib2.java:40: error: cannot find symbol
public class Lib2 extends CoreComm {
                          ^
  symbol: class CoreComm
1 error
../../../../../6lbr-demo/6lbr-demo-main.c: In function 'process_thread_demo_6lbr_process':
../../../../../6lbr-demo/6lbr-demo-main.c:138:3: warning: implicit declaration of function 'rs232_set_input' [-Wimplicit-function-declaration]
   rs232_set_input(serial_line_input_byte);
   ^~~~~~~~~~~~~~~
../../../../../../apps/shell/shell-ping.c: In function 'process_thread_shell_ping_process':
../../../../../../apps/shell/shell-ping.c:147:3: warning: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
   printf("Sending ping...\n");
   ^~~~~~
../../../../../../apps/shell/shell-netstat.c: In function 'process_thread_shell_netstat_process':
../../../../../../apps/shell/shell-netstat.c:114:20: warning: unused variable 'conn' [-Wunused-variable]
   struct uip_conn *conn;
                    ^~~~
../../../../../../apps/shell/shell-netstat.c:113:7: warning: unused variable 'i' [-Wunused-variable]
   int i;
       ^
../../../../../../apps/shell/shell-netstat.c:112:8: warning: unused variable 'buf' [-Wunused-variable]
   char buf[BUFLEN];
        ^~~
At top level:
../../../../../../apps/shell/shell-netstat.c:87:20: warning: 'states' defined but not used [-Wunused-variable]
 static const char *states[] = {
                    ^~~~~~
../../../../../../apps/shell/shell-netstat.c:83:19: warning: 'proc_name' defined but not used [-Wunused-const-variable=]
 static const char proc_name[] = /*  "processes"*/
                   ^~~~~~~~~
../../../../../../apps/shell/shell-netstat.c:79:19: warning: 'tcp_name' defined but not used [-Wunused-const-variable=]
 static const char tcp_name[] = /*  "tcp-connections"*/
                   ^~~~~~~~
../../../../../../apps/shell/shell-netstat.c:76:19: warning: 'file_name' defined but not used [-Wunused-const-variable=]
 static const char file_name[] = /*  "file-stats"*/
                   ^~~~~~~~~
../../../../../../core/loader/elfloader-x86.c: In function 'elfloader_arch_relocate':
../../../../../../core/loader/elfloader-x86.c:104:10: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
     addr -= (sectionaddress + rela->r_offset); /* -P */
          ^~
../../../../../../core/net/ipv6/uip-icmp6.c: In function 'echo_reply_input':
../../../../../../core/net/ipv6/uip-icmp6.c:308:3: warning: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
   printf("Received an icmp6 echo reply\n");
   ^~~~~~
javac 1.8.0_191
org/contikios/cooja/corecomm/Lib3.java:40: error: cannot find symbol
public class Lib3 extends CoreComm {
                          ^
  symbol: class CoreComm
1 error