fixes issue #97: error when bsvdepend generated Makefile depends on non-existant file
fixes issue #97: error when bsvdepend generated Makefile depends on non-existant file

cambridgehackers/connectal,chenm001/connectal,csail-csg/connectal,csail-csg/connectal,cambridgehackers/connectal,hanw/connectal,csail-csg/connectal,cambridgehackers/connectal,hanw/connectal,csail-csg/connectal,hanw/connectal,cambridgehackers/connectal,cambridgehackers/connectal,chenm001/connectal,chenm001/connectal,chenm001/connectal,hanw/connectal,chenm001/connectal,csail-csg/connectal,hanw/connectal