[PATCH] Several GNU/Hurd fixes

[Roland McGrath]

> The following patch fixes several bugs for GNU/Hurd. The
> CFLAGS-init-first.c changes fixes a gcc 3.4 error because it wants to
> use ebp in doinit() for the frame pointer, but we already use it in
> the assembly code.

Please elaborate on the problem.  The asm in doinit should not care about
the prior register usage.

> 	* inet/test-ifaddrs.c (addr_string): Surround AF_PACKET case with
> 	#ifdef AF_PACKET.
> 	* sysdeps/mach/hurd/getcwd.c
> 	(_hurd_canonicalize_directory_name_intern): Only realloc when
> 	size is <= 0.
> 	* sysdeps/mach/hurd/mmap.c (__mmap): Fail when addr or offset
> 	isn't page aligned.
> 	* sysdeps/mach/hurd/spawni.c (EXPAND_DTABLE): Set dtablesize to
> 	new size.

These changes are unrelated and the log entries should not be grouped into
a paragraph.