build breaks once -jX is passed (with any X), e.g. for this port:
cc ck_mdb.o ck_volume.o ck_btree.o hfsck.o util.o main.o ../suid.o
../version.o -L../libhfs -lhfs -o hfsck
cc: ../suid.o: No such file or directory
cc: ../version.o: No such file or directory
*** Error code 1
1 error
*** Error code 2
1 error
===> Compilation failed unexpectedly.
Reluctantly force GNU make(1) for the time being with corresponding comment.
