+ # glibc/Linux, MacOS X < 10.4, FreeBSD < 5.0, NetBSD < 3.0, OpenBSD < 4.4.
+ # (glibc/{Hurd,kFreeBSD}, MacOS X >= 10.4, FreeBSD >= 5.0, NetBSD >= 3.0,
+ # OpenBSD >= 4.4, AIX, HP-UX, OSF/1, Cygwin already handled above.)
+ # (On IRIX you need to include <sys/statfs.h>, not only <sys/mount.h> and
+ # <sys/vfs.h>.)
+ # (On Solaris, statfs has 4 arguments.)
+ AC_MSG_CHECKING([for two-argument statfs with statfs.f_bsize dnl