merge xorg-server 21.1.9.

fix a couple of merge botches (duplicated) delete #if 0'd sections.

reduces diffs vs upstream.

merge xorg-serer 21.1.3.

merge xorg-server 1.20.10.

merge xorg-server 1.20.3.

apply

https://cgit.freedesktop.org/xorg/xserver/commit/?id=d7ac755f0b618eb1259d93c8a16ec6e39a18627c

Use timingsafe_memcmp() to compare MIT-MAGIC-COOKIES CVE-2017-2624
Provide the function definition for systems that don't have it.

Signed-off-by: Matthieu Herrb <matthieu@herrb.eu>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>

and
https://cgit.freedesktop.org/xorg/xserver/commit/?id=5c44169caed811e59a65ba346de1cadb46d266ec

os: Squash missing declaration warning for timingsafe_memcmp
timingsafe_memcmp.c:21:1: warning: no previous prototype for `timingsafe_memcmp' [-Wmissing-prototypes]
timingsafe_memcmp(const void *b1, const void *b2, size_t len)

Signed-off-by: Adam Jackson <ajax@redhat.com>

first merge of netbsd changes. not tested yet.

merge cornflakes with xorg-server 1.10.3

disable _X_DEPRECATED on netbsd; it has led to a bunch of -Wno-error in
the past, and with new xorg-server, almost every driver file needs it.

merge xorg-server 1.9.2.

merge xorg-server 1.6.1.190.

XXX: our Pci.[ch] changes need to be re-looked at, i think.

include string.h and strings.h - for some reason they're missing on sparc64
XXX: need to figure out where the other archs include them so we can get
rid of this

initial import of xorg-server-1.4.2