fix compiler errors

4 jobs for master
Status Name Job ID Coverage
  Prepare
failed docker-dev #1947043
shell linux

 
  Build
skipped build:source #1947044
docker
 
  Test
skipped test:cppcheck #1947046
docker
skipped test:unit #1947045
villas-fpga cuda allowed to fail
 
Name Stage Failure
failed
docker-dev Prepare There has been a timeout failure or the job got stuck. Check your timeout limits or try again
No job log