[asterisk-users] trouble building dahdi on kernel 5.2.7

[sean darcy]

dahdi built fine on 5.1.20, but on 5.2.7:

.............
   CC [M] 
/home/asterisk/rpmbuild/BUILD/linux-dade6ac/drivers/dahdi/vpmadt032_loader/dahdi_vpmadt032_loader.o
   SHIPPED 
/home/asterisk/rpmbuild/BUILD/linux-dade6ac/drivers/dahdi/vpmadt032_loader/vpmadt032_x86_64.o
   LD [M] 
/home/asterisk/rpmbuild/BUILD/linux-dade6ac/drivers/dahdi/dahdi_vpmadt032_loader.o
   Building modules, stage 2.
   MODPOST 15 modules
ERROR: "vpmadtreg_register" 
[/home/asterisk/rpmbuild/BUILD/linux-dade6ac/drivers/dahdi/dahdi_vpmadt032_loader.ko] 
undefined!
ERROR: "vpmadtreg_unregister" 
[/home/asterisk/rpmbuild/BUILD/linux-dade6ac/drivers/dahdi/dahdi_vpmadt032_loader.ko] 
undefined!
make[2]: *** [scripts/Makefile.modpost:91: __modpost] Error 1
make[1]: *** [Makefile:1605: modules] Error 2
make[1]: Leaving directory '/usr/src/kernels/5.2.7-100.fc29.x86_64'
make: *** [Makefile:74: modules] Error 2
error: Bad exit status from /var/tmp/rpm-tmp.F8F4dL (%prep)

Any ideas ?

sean