storage/connect/reldef.cpp compilation fails in debug mode

In file included from /usr/include/string.h:635:0,

                 from /tmp/es-build/include/m_string.h:35,

                 from /tmp/es-build/include/my_sys.h:22,

                 from /tmp/es-build/sql/sql_bitmap.h:26,

                 from /tmp/es-build/sql/mysqld.h:23,

                 from /tmp/es-build/sql/handler.h:31,

                 from /tmp/es-build/storage/connect/reldef.cpp:27:

In function 'char* strncat(char*, const char*, size_t)',

    inlined from 'TABDEF* OEMDEF::GetXdef(PGLOBAL)' at /tmp/es-build/storage/connect/reldef.cpp:503:63:

/usr/include/x86_64-linux-gnu/bits/string3.h:156:71: error: call to char* __builtin___strncat_chk(char*, const char*, long unsigned int, long unsigned int) might overflow destination buffer [-Werror]

   return __builtin___strncat_chk (__dest, __src, __len, __bos (__dest));

                                                                       ^

[ 58%] Building CXX object storage/rocksdb/CMakeFiles/rocksdblib.dir/rocksdb/env/env_posix.cc.o

cd /tmp/es-build/build/storage/rocksdb && /usr/bin/c++   -DHAVE_CONFIG_H -DHAVE_SCHED_GETCPU=1 -DHAVE_TIMER_DELETE -DOS_LINUX -DROCKSDB_FALLOCATE_PRESENT -DROCKSDB_LIB_IO_POSIX -DROCKSDB_MALLOC_USABLE_SIZE -DROCKSDB_PLATFORM_POSIX -DROCKSDB_SCHED_GETCPU_PRESENT -DROCKSDB_SUPPORT_THREAD_LOCAL -DSNAPPY -DZLIB -DZSTD -D_FILE_OFFSET_BITS=64 -I/tmp/es-build/build/include -I/tmp/es-build/include -I/tmp/es-build/sql -I/tmp/es-build/build/pcre -I/tmp/es-build/pcre -I/tmp/es-build/zlib -I/tmp/es-build/build/zlib -I/tmp/es-build/build/storage/rocksdb -I/tmp/es-build/storage/rocksdb/rocksdb -I/tmp/es-build/storage/rocksdb/rocksdb/include -isystem /tmp/es-build/storage/rocksdb/rocksdb/third-party/gtest-1.7.0/fused-src -I/tmp/es-build/storage/rocksdb/rocksdb/util  -pie -fPIC -Wl,-z,relro,-z,now -fstack-protector --param=ssp-buffer-size=4 -fPIC -fno-rtti -O -g -static-libgcc -fno-omit-frame-pointer -fno-strict-aliasing -Wno-uninitialized -DENABLED_DEBUG_SYNC -ggdb3 -DSAFE_MUTEX -DSAFEMALLOC -Wall -Wextra -Wformat-security -Wno-init-self -Wno-unused-parameter -Woverloaded-virtual -Wvla -Wwrite-strings -Werror -Wno-error=maybe-uninitialized   -fPIC -fno-builtin-memcmp -frtti -std=gnu++11 -o CMakeFiles/rocksdblib.dir/rocksdb/env/env_posix.cc.o -c /tmp/es-build/storage/rocksdb/rocksdb/env/env_posix.cc

cc1plus: all warnings being treated as errors

storage/connect/CMakeFiles/connect.dir/build.make:638: recipe for target 'storage/connect/CMakeFiles/connect.dir/reldef.cpp.o' failed

make[2]: *** [storage/connect/CMakeFiles/connect.dir/reldef.cpp.o] Error 1

make[2]: Leaving directory '/tmp/es-build/build'

CMakeFiles/Makefile2:3472: recipe for target 'storage/connect/CMakeFiles/connect.dir/all' failed

make[1]: *** [storage/connect/CMakeFiles/connect.dir/all] Error 2

make[1]: *** Waiting for unfinished jobs....