MyRocks linking fails with: Undefined reference to `ZDICT_trainFromBuffer'

librocksdblib.a(compaction_job.cc.o): In function `rocksdb::ZSTD_TrainDictionary(std::__cxx11::basic_string

<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<unsigned long,

 std::allocator<unsigned long> > const&, unsigned long)':

./builddir/storage/rocksdb/./storage/rocksdb/rocksdb/util/compression.h:812: undefined reference to `ZDICT_trainFromBuffer'

./builddir/storage/rocksdb/./storage/rocksdb/rocksdb/util/compression.h:813: undefined reference to `ZDICT_isError'

collect2: error: ld returned 1 exit status

storage/rocksdb/CMakeFiles/sst_dump.dir/build.make:98: recipe for target 'storage/rocksdb/sst_dump' failed

/usr/bin/x86_64-linux-gnu-g++   -g -O2 

-fdebug-prefix-map=/home/buildbot/buildbot/build/mariadb-10.2.16=. 

-specs=/usr/share/dpkg/no-pie-compile.specs -fstack-protector-strong -Wformat -Werror=format-security 

-pie -fPIC -Wl,-z,relro,-z,now -fstack-protector --param=ssp-buffer-size=4 -fno-rtti -O3 -g -static-libgcc 

-fno-omit-frame-pointer -fno-strict-aliasing -Wno-uninitialized -D_FORTIFY_SOURCE=2 -DDBUG_OFF

  -specs=/usr/share/dpkg/no-pie-link.specs -Wl,-z,relro -Wl,-z,now 

CMakeFiles/sst_dump.dir/rocksdb/tools/sst_dump.cc.o  

-o sst_dump  -lpthread librocksdblib.a -lsnappy -lzstd -lz -lpthread