Need help with a build problem

Hello LO friends,

I have the following build problem

[CMP] sw/util/sw
[DEP] LNK:Library/libswuilo.so
[LNK] Library/libswuilo.so
[DEP] LNK:Library/libvbaswobjlo.so
[LNK] Library/libvbaswobjlo.so
/home/lo/Dev/LO1/core/workdir/CxxObject/sw/source/ui/vba/vbarevision.o(.debug_addr+0x398):
error: undefined reference to 'SwFormat::GetName() const'
/home/lo/Dev/LO1/core/workdir/CxxObject/sw/source/ui/vba/vbarevision.o(.debug_addr+0x5c0):
error: undefined reference to 'SwFormat::Which() const'
/home/lo/Dev/LO1/core/workdir/CxxObject/sw/source/ui/vba/vbasections.o(.debug_addr+0x1048):
error: undefined reference to 'SwFormat::Which() const'
/home/lo/Dev/LO1/core/workdir/CxxObject/sw/source/ui/vba/vbasections.o(.debug_addr+0x12c8):
error: undefined reference to 'SwFormat::GetName() const'
/home/lo/Dev/LO1/core/workdir/CxxObject/sw/source/ui/vba/vbadocumentproperties.o(.debug_addr+0x1b68):
error: undefined reference to 'SwFormat::Which() const'
/home/lo/Dev/LO1/core/workdir/CxxObject/sw/source/ui/vba/vbadocumentproperties.o(.debug_addr+0x20f0):
error: undefined reference to 'SwFormat::GetName() const'
/home/lo/Dev/LO1/core/workdir/CxxObject/sw/source/ui/vba/vbaselection.o(.debug_addr+0x7d8):
error: undefined reference to 'SwFormat::GetName() const'
/home/lo/Dev/LO1/core/workdir/CxxObject/sw/source/ui/vba/vbaselection.o(.debug_addr+0x12d0):
error: undefined reference to 'SwFormat::Which() const'
collect2: error: ld returned 1 exit status
/home/lo/Dev/LO1/core/sw/Library_vbaswobj.mk:20: recipe for target
'/home/lo/Dev/LO1/core/instdir/program/libvbaswobjlo.so' failed
make[1]: *** [/home/lo/Dev/LO1/core/instdir/program/libvbaswobjlo.so] Error
1
make[1]: *** Waiting for unfinished jobs....
Makefile:282: recipe for target 'build' failed
make: *** [build] Error 2

I have done several ./g pull -r over the past week in hope that this was
only a temporary problem.

Here is the content of my autogen.lastrun
--enable-debug
--without-myspell-dicts
--without-doxygen
--without-java
--without-help

Same error when trying the following

./autogen.sh
make clean
make

ccache --clear
./autogen.sh
make clean
make

GNU C Compiler version 7.1.0 (Ubuntu 7.1.0-10ubuntu1~16.04.york0)