Paul Eggert wrote: > Thanks for the further information about the problem with MacOS X 10.7. > Can you please try this patch? If you don't have autotools installed, > you can edit 'configure' by hand and install a similar patch there. > Thanks. > > I have pushed this into gnulib as it seems pretty simple. The basic > idea is to avoid statvfs on MacOS X because its block counts can't > go above 2**31. > > Subject: [PATCH 3/3] fsusage: port to MacOS X 10.7 with 4 TiB file systems > > * m4/fsusage.m4 (gl_FILE_SYSTEM_USAGE): Reject statvfs > implementations that use only 32 bits to count blocks. > On typical hosts with 1024-byte blocks, this fails with file > systems as small as 4 TiB. Problem reported by Herb Wartens > <http://debbugs.gnu.org/9140> and this should also fix a similar > problem reported by Tim Spriggs <http://debbugs.gnu.org/7355>. ... > +/* Reject implementations, such as MacOS X 10.7, where f_blocks is a > + 32-bit quantity; that commonly limits file systems to 4 TiB, a > + ridiculously small limit these days. */ > +struct statvfs fsd; > +int check_f_blocks_size[sizeof fsd.f_blocks * CHAR_BIT <= 32 ? -1 : 1]; > +]],
Nice. That looks like it will do the job, and since all statvfs implementations have the f_blocks member, it should be safe. Thanks.
