[Box Backup-dev] First errors on Darwin

[Martin Ebourne]

On Sun, 2005-12-18 at 09:58 +0000, Ben Summers wrote:
> So, checkout, ./bootstrap and ./configure all work fine on Darwin.  
> The last one is probably easy to sort out, but Darwin doesn't have  
> llistxattr, but it does have listxattr:
> 
> ssize_t
>       listxattr(const char *path, char *namebuf, size_t size, int  
> options);

"llistxattr  is identical to listxattr, except in the case of a symbolic
 link, where the list of names of extended  attributes  associated  with
 the link itself is retrieved, not the file that it refers to."

Does darwin not have symlinks?

> What sort autoconf magic do I need to detect this?

Add llistxattr to the end of this line in configure.ac. Then there
should be a new HAVE_ in config.h which will be undefined for you.

AC_CHECK_FUNCS([getpeereid kqueue lchown setproctitle])

If you need an extra library to be linked in, then instead add something
like:

AC_CHECK_LIB([xattr], [listxattr])
AC_CHECK_FUNCS([llistxattr])

If darwin does have symlinks but no llistxattr then I think probably
some extra logic will be required too.

Cheers,

Martin.