Compile error on ubuntu 16.04 about libzt HOT 4 CLOSED

[100%] Building CXX object CMakeFiles/ipv4client.dir/examples/bindings/cpp/ipv4simple/ipv4client.cpp.o
/usr/bin/c++    -I/srv/maverick/software/libzt/ext/lwip/src/include -I/srv/maverick/software/libzt/ext/lwip-contrib/ports/unix/port/include -I/srv/maverick/software/libzt/zto/include -I/srv/maverick/software/libzt/zto/osdep -I/srv/maverick/software/libzt/zto/node -I/srv/maverick/software/libzt/zto/service -I/srv/maverick/software/libzt/src -I/srv/maverick/software/libzt/include  -fvisibility=hidden -fstack-protector -DZT_SDK=1  -std=c++11 -g -fvisibility=hidden -fstack-protector -DZT_SDK=1  -std=c++11 -g -DLIBZT_TRACE=1 -DLIBZT_DEBUG=1 -DNS_TRACE=1 -DNS_DEBUG=1   -o CMakeFiles/ipv4client.dir/examples/bindings/cpp/ipv4simple/ipv4client.cpp.o -c /srv/maverick/software/libzt/examples/bindings/cpp/ipv4simple/ipv4client.cpp
/srv/maverick/software/libzt/examples/bindings/cpp/ipv4simple/ipv4client.cpp: In function ‘int main(int, char**)’:
/srv/maverick/software/libzt/examples/bindings/cpp/ipv4simple/ipv4client.cpp:71:28: warning: format ‘%llx’ expects argument of type ‘long long unsigned int’, but argument 2 has type ‘uint64_t {aka long unsigned int}’ [-Wformat=]
  printf("nwid=%llx\n", nwid);
                            ^
In file included from /srv/maverick/software/libzt/include/libzt.h:36:0,
                 from /srv/maverick/software/libzt/examples/bindings/cpp/ipv4simple/ipv4client.cpp:43:
/srv/maverick/software/libzt/include/libztDebug.h:124:72: warning: format ‘%llx’ expects argument of type ‘long long unsigned int’, but argument 7 has type ‘uint64_t {aka long unsigned int}’ [-Wformat=]
     ZT_RESET, ZT_THREAD_ID, ZT_FILENAME, __LINE__, __FUNCTION__, ##args)
                                                                        ^
/srv/maverick/software/libzt/examples/bindings/cpp/ipv4simple/ipv4client.cpp:74:2: note: in expansion of macro ‘DEBUG_TEST’
  DEBUG_TEST("I am %llx", nodeId);
  ^
[100%] Linking CXX executable ../bin/ipv4client
/usr/bin/cmake -E cmake_link_script CMakeFiles/ipv4client.dir/link.txt --verbose=1
/usr/bin/c++   -fvisibility=hidden -fstack-protector -DZT_SDK=1  -std=c++11 -g -fvisibility=hidden -fstack-protector -DZT_SDK=1  -std=c++11 -g -DLIBZT_TRACE=1 -DLIBZT_DEBUG=1 -DNS_TRACE=1 -DNS_DEBUG=1   CMakeFiles/ipv4client.dir/examples/bindings/cpp/ipv4simple/ipv4client.cpp.o  -o ../bin/ipv4client -rdynamic -lpthread ../bin/lib/liblwip.a ../bin/lib/libzto.a ../bin/lib/libzt.a ../bin/lib/libzto.a ../bin/lib/libzt.a ../bin/lib/libhttp.a -lpthread ../bin/lib/liblwip.a
make[2]: Leaving directory '/srv/maverick/software/libzt/build'
[100%] Built target ipv4client
make[1]: Leaving directory '/srv/maverick/software/libzt/build'
/usr/bin/cmake -E cmake_progress_start /srv/maverick/software/libzt/build/CMakeFiles 0