connector causes valgrind uninitialised value errors

[Jo Ember]

My program is linked with the connector library. When I run my application through valgrind it reports on uninitialised variables.
I recompiled the connector library with the flag -DWITH_VALGRIND=ON, but now the compilation fails with the message below:

/tmp/mysql-connector-c-6.1.10-src/mysys/my_alloc.c: In function ‘alloc_root’:
/tmp/mysql-connector-c-6.1.10-src/mysys/my_alloc.c:204:11: error: ‘MEM_ROOT {aka struct st_mem_root}’ has no member named ‘allocated_size’; did you mean ‘block_size’?
mem_root->allocated_size+= length;
^~
mysys/CMakeFiles/mysys.dir/build.make:782: recipe for target 'mysys/CMakeFiles/mysys.dir/my_alloc.c.o' failed
make[2]: *** [mysys/CMakeFiles/mysys.dir/my_alloc.c.o] Error 1
CMakeFiles/Makefile2:729: recipe for target 'mysys/CMakeFiles/mysys.dir/all' failed
make[1]: *** [mysys/CMakeFiles/mysys.dir/all] Error 2
Makefile:149: recipe for target 'all' failed
make: *** [all] Error 2