Struggling with unit test

Hi all,

I need help again. I try to write a unit test 
https://gerrit.libreoffice.org/#/c/72229/
It works with Windows10. But Jenkins fails on Mac with message
https://ci.libreoffice.org/job/gerrit_mac/32803/

Undefined symbols for architecture x86_64:
  "SdrObjCustomShape::DragMoveCustomShapeHdl(Point const&, unsigned 
short, bool)", referenced from:
      (anonymous namespace)::testTdf115813_OOXML_XY_handle::TestBody() 
in customshapes.o
  "SdrObjCustomShape::GetInteractionHandles() const", referenced from:
      (anonymous namespace)::testTdf115813_OOXML_XY_handle::TestBody() 
in customshapes.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see 
invocation)

I have now build it in a VM with Ubuntu 16.0 LTS. There too I get an 
error. Here the message is
cd /home/vmregina/lo/core/svx && make -j 4 -rs check
[build DEP] LNK:CppunitTest/libtest_svx_unit.so
[build LNK] CppunitTest/libtest_svx_unit.so
/usr/bin/ld.gold: error: 
/home/vmregina/lo/core/workdir/CxxObject/svx/qa/unit/customshapes.o: 
requires dynamic R_X86_64_PC32 reloc against 
'_ZNK17SdrObjCustomShape21GetInteractionHandlesEv' which may overflow at 
runtime; recompile with -fPIC
/home/vmregina/lo/core/svx/qa/unit/customshapes.cxx:361: error: 
undefined reference to 'SdrObjCustomShape::GetInteractionHandles() const'
/home/vmregina/lo/core/svx/qa/unit/customshapes.cxx:365: error: 
undefined reference to 'SdrObjCustomShape::GetInteractionHandles() const'
/home/vmregina/lo/core/svx/qa/unit/customshapes.cxx:369: error: 
undefined reference to 'SdrObjCustomShape::DragMoveCustomShapeHdl(Point 
const&, unsigned short, bool)'
/home/vmregina/lo/core/svx/qa/unit/customshapes.cxx:371: error: 
undefined reference to 'SdrObjCustomShape::GetInteractionHandles() const'
collect2: error: ld returned 1 exit status
/home/vmregina/lo/core/solenv/gbuild/LinkTarget.mk:635: recipe for 
target 
'/home/vmregina/lo/core/workdir/LinkTarget/CppunitTest/libtest_svx_unit.so' 
failed
make[1]: *** 
[/home/vmregina/lo/core/workdir/LinkTarget/CppunitTest/libtest_svx_unit.so] 
Error 1
Makefile:120: recipe for target 'svx.check' failed
make: *** [svx.check] Error 2

What is needed for these systems? Does it make a difference whether it 
is a debug build or not? My current Windows setting is a non-debug 
build, in the Linux VM it is a debug-build.

Kind regards
Regina