openbsd-compat/bsd-statvfs.h] Implement enough of statvfs on top of statfs
to be useful (and for the regression tests to pass) on platforms that
have statfs and fstatfs. ok djm@
openbsd-compat/Makefile.in openbsd-compat/openbsd-compat.h
openbsd-compat/bsd-statvfs.{c,h}] Add a null implementation of statvfs and
fstatvfs and remove #defines around statvfs code. ok djm@