Tested with Podd at commit f5437c8db1c9e17b8c7313ac5809355af59bbd19
Currently both CMake and SCons build not only libPodd, but also libHallA,
even though it is not required for hcana. hcana is linked only against
libPodd, however, so libHallA is simply a spurious byproduct.
The Travis build fails because Podd no longer supports plain make. You should remove the make build form the Travis configuration. Replace it with CMake followed by make if you like.
Tested with Podd at commit f5437c8db1c9e17b8c7313ac5809355af59bbd19
Currently both CMake and SCons build not only libPodd, but also libHallA, even though it is not required for hcana. hcana is linked only against libPodd, however, so libHallA is simply a spurious byproduct.