Log message:
libnbcompat: bump version and update list of tested platforms

Log message:
nbcompat/pwd.h: add prototypes for pwcache_userdb/groupdb

Log message:
libnbcompat: properly set errno in previous

This is not a syscall handler ...

Log message:
libnbcompat: fix chflags(2) issue on Linux

Linux does not have the chflags(2) syscall. Some versions of libc
have a stub that just returns ENOSYS. Not all versions of libc
have this stub so just avoid the potentially missing symbol
and return ENOSYS directly on Linux.

Log message:
libnbcompat: Rework in-place linking.

Prevent libtool from detecting -lnbcompat in the command line arguments
then declaring it as a dependency in the resulting libtool archive.

Filter -lnbcompat from all of the environment when compiling an
in-place copy to prevent circular dependencies.

Drop LIBNBCOMPAT_USE_PIC, I can't find anywhere this is used in the
tree, it's incomplete (needs handling in mk/) and complicates things
needlessly.

What still needs to be done is figure out why certain packages don't
seem to properly link with libnbcompat when USE_FEATURES is used - it's
a long-term problem, might be related to some newer build systems not
using ${LIBS}.

Bootstrap tested on Darwin and NetBSD.

Log message:
libnbcompat: Add memrchr.

Log message:
libnbcompat: revert previous, breaks cwrappers on NetBSD

Reported by John D. Baker on pkgsrc-users.

Log message:
libnbcompat: When linking with an "in-place" copy of libnbcompat in each
piece of software that needs to pull functions from it, prevent libtool
from detecting -lnbcompat in the command line arguments then declaring
it as a dependency in the resulting libtool archive.