Commit graph

1363 commits

Author SHA1 Message Date
Peter Hutterer
7b7753e97f sync: if the idle time was reset, force alarms to trigger (#70476)
The time between the idle reset and the IdleTimeWakeupHandler to be called is
indeterminate. Clients with an PositiveTransition or NegativeTransition alarm
on a low threshold may miss an alarm.

Work around this by keeping a reset flag for each device. When the
WakeupHandler triggers and the reset flag is set, we force a re-calculation of
everything and pretend the current idle time is zero. Immediately after is the
next calculation with the real idle time.

Relatively reproducible test case: Set up a XSyncNegativeTransition alarm for
a threshold of 1 ms. May trigger, may not.

X.Org Bug 70476 <http://bugs.freedesktop.org/show_bug.cgi?id=70476>

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
(cherry picked from commit 06b87aa528)
2013-10-22 15:43:59 +10:00
Peter Hutterer
3866624a45 dix: provide accessor methods for the last device event time
And now that we have the accessors, localize it. No functional changes, just
preparing for a future change.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
(cherry picked from commit efc1035ca9)
2013-10-22 15:43:58 +10:00
Peter Hutterer
f5b22ee8ba include: change grabtypes to start at 1
Avoid erroneous detection of an unset grabtype as CORE

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
(cherry picked from commit 6159811a1a)
2013-10-22 15:43:41 +10:00
Julien Cristau
19c2d516c2 xfree86: improve check for posix saved ids
Replace hardcoded SVR4 || linux || CSRG_BASED with an autoconf check and
the _POSIX_SAVED_IDS macro.

Suggested-by: Mark Kettenis <mark.kettenis@xs4all.nl>
Signed-off-by: Julien Cristau <jcristau@debian.org>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Mark Kettenis <kettenis@openbsd.org>.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
(cherry picked from commit c218ba8423)
2013-09-15 22:03:31 +02:00
Peter Hutterer
ef54bd89b1 dix: check the xi2mask, not the grab type for touch listeners
grab->type is only non-zero for passive grabs. We're checking an active grab
here, so we need to check if the touch mask is set on the grab.

Test case: grab the device, then start two simultaneous touches. The
grabbing client won't see the second touchpoints because grab->type is 0
and the second touch is not an emulating pointer.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
(cherry picked from commit 4fb686d6a6)
2013-07-30 15:39:46 +10:00
Peter Hutterer
1e29b269fd Abstract cursor refcounting
Too many callers relied on the refcnt being handled correctly. Use a simple
wrapper to handle that case.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
(cherry picked from commit 9a5ad65330)
2013-07-17 14:37:37 +10:00
Peter Hutterer
6bd9badc78 dix: AllocGrab can copy if an argument is passed in
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
(cherry picked from commit 925e35122e)
2013-07-17 14:35:49 +10:00
Peter Hutterer
d8c0cc9bab dix: drop DeviceIntRec's activeGrab struct
Obsolete since 4bc2761ad5. This struct
existed so copying a passive grab could be simply done by
  activeGrab = *grab

and thus have a copy of the GrabPtr we'd get from various sources but still
be able to check device->grab for NULL.

Since 4bc2761 activeGrab is a pointer itself and points to the same memory
as grabinfo->grab, leaving us with the potential of dangling pointers if
either calls FreeGrab() and doesn't reset the other one.

There is no reader of activeGrab anyway, so simply removing it is
sufficient.

Note: field is merely renamed to keep the ABI. Should be removed in the
future.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
(cherry picked from commit 5363433a5c)
2013-07-17 14:35:46 +10:00
Peter Hutterer
4081b00d36 dix: XAllowEvents() on a touch event means accepting it
A sync grab is the owner once it gets events. If it doesn't replay the
event it will get all events from this touch, equivalent to accepting it.

If the touch has ended before XAllowEvents() is called, we also now need to
send the TouchEnd event and clean-up since we won't see anything more from
this touch.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
(cherry picked from commit 5174b1f982)
2013-07-17 14:35:42 +10:00
Peter Hutterer
8666395484 dix: move EmitTouchEnd to touch.c
No functional changes, this just enables it to be re-used easier.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
(cherry picked from commit e7f79c48b0)
2013-07-17 14:35:39 +10:00
Peter Hutterer
c8a4835806 Xi: use public.processInputProc to replay the touch history
If a device is frozen in results to a grab, we need to enqueue the events.

This makes things complicated, and hard to follow since touch events are now
replayed in the history, pushed into EnqueueEvent, then replayed later
during PlayReleasedEvents in response to an XAllowEvents.

While the device is frozen, no touch events are processed, so if there is a
touch client with ownership mask _below_ the grab this will delay the
delivery and potentially screw gesture recognition. However, this is the
behaviour we have already anyway if the top-most client is a sync pgrab or
there is a sync grab active on the device when the TouchBegin was generated.

(also note, such a client would only reliably work in case of ReplayPointer
anyway)

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
(cherry picked from commit a7d989d335)
2013-07-17 14:35:37 +10:00
Andreas Müller
bcc8eba00b dixstruct.h: fix segfaults - char is unsigned for ARM and PowerPC architectures
see ARM related bug reports [1-3]

[1] https://github.com/archlinuxarm/PKGBUILDs/issues/446I
[2] http://www.raspberrypi.org/phpBB3/viewtopic.php?t=38568&p=321673
[3] http://lists.linuxtogo.org/pipermail/openembedded-core/2013-April/037805.html

Signed-off-by: Andreas Müller <schnitzeltony@googlemail.com>
Reviewed-by: Mark Kettenis <kettenis@openbsd.org>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2013-05-30 18:08:27 -06:00
Matt Dew
a01839e8d3 Merge branch 'server-1.14-branch' of git://people.freedesktop.org/~whot/xserver into server-1.14-branch 2013-05-23 22:08:23 -06:00
Peter Hutterer
1c215f5a9c dix: send the current axis value in DeviceChangedEvents (#62321)
X.Org Bug 62321 <http://bugs.freedesktop.org/show_bug.cgi?id=62321>

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
(cherry picked from commit 23d1bc69f3)
2013-05-14 16:35:36 +10:00
Dave Airlie
5c296c32d9 xf86: don't hotplug output devices while VT switched.
We don't want to hotplug output devices while we are VT switched,
as we get races between multiple X servers on the device open, and
drm device master status. This just queues device opens until we return
from VT switch.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
(cherry picked from commit 22cab8a28a)
2013-05-06 09:52:06 +10:00
Robert Morell
8e16c2e303 list.h: Make xorg_list_init inline
Otherwise this file is emitted in every unit that includes it.

Signed-off-by: Robert Morell <rmorell@nvidia.com>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
(cherry picked from commit 7050aae69c)
2013-04-02 15:49:51 +10:00
Dave Airlie
c1602d1c17 randr: bump advertised RandR version to 1.4
Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Aaron Plattner <aplattner@nvidia.com>
Tested-by: Aaron Plattner <aplattner@nvidia.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2013-02-08 09:09:54 -08:00
Peter Hutterer
9f79e93b6b Short-cut the input device cleanup process during AbortServer()
If we're about to abort, we're already in the signal handler and cannot call
down to the default device cleanup routines (which reset, free, alloc, and
do a bunch of other things).

Add a new DEVICE_ABORT mode to signal a driver's DeviceProc that it must
reset the hardware if needed but do nothing else. An actual HW reset is only
required for some drivers dealing with the HW directly.

This is largely backwards-compatible, hence the input ABI minor bump only.

Drivers we care about either return BadValue on a mode that's not
DEVICE_{INIT|ON|OFF|CLOSE} or print an error and return BadValue. Exception
here is vmmouse, which currently ignores it and would not reset anything.
This should be fixed if the reset is required.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2013-02-08 09:06:14 -08:00
Peter Hutterer
b58221f9da dix: support the transformation matrix for relative devices.
The transformation matrix we previously stored was a scaled matrix based on
the axis ranges of the device. For relative movements, the scaling is not
required (or desired).

Store two separate matrices, one as requested by the client, one as the
product of [scale . matrix . inv_scale]. Depending on the type of movement,
apply the respective matrix.

For relative movements, also drop the translation component since it doesn't
really make sense to use that bit.

Input ABI 19

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2013-02-08 09:02:57 -08:00
Peter Hutterer
0d5bb88260 Merge branch 'ptraccel-fixes' into for-keith 2013-02-08 14:10:52 +10:00
Peter Hutterer
8571c648a7 Xext: if a root window is given in XTestFakeInput, move to that
For absolute events, if the client specifies a screen number offset the
coordinates by that. And add a new flag so we know when _not_ to add the
screen offset in GPE.

Without this offset and the flag, GPE would simply add the offset of the
current screen if POINTER_SCREEN is set.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
2013-02-08 13:49:49 +10:00
Peter Hutterer
1cb19803f0 include: fix typo in list description
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2013-02-08 13:47:24 +10:00
Jasper St. Pierre
7fe5e6dfa5 protocol-versions: Bump minor version of XI
This was accidentally excluded when we added barriers.

Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Keith Packard <keithp@keithp.com>
2013-01-23 19:05:31 -08:00
Dave Airlie
605dfc6804 xserver: fix build regression since 91ab237358
inputstr, double defines TouchListener typedef, maybe some gcc handles it,
but not all.

fixes tinderbox

Reported-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Keith Packard <keithp@keithp.com>
2013-01-21 14:24:08 -08:00
Keith Packard
069d8ed3eb Merge remote-tracking branch 'jturney/xserver-next' 2013-01-20 15:58:38 -08:00
Keith Packard
591c06277b Merge remote-tracking branch 'whot/for-keith' 2013-01-20 15:52:26 -08:00
Peter Hutterer
cde7cbe967 os: add support for %f to pnprintf
This is the lazy man's %f support. Print the decimal part of the number,
then append a decimal point, then print the first two digits of the
fractional part. So %f in sigsafe printing is really %.2f.

No boundary checks in place here.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
2013-01-17 17:17:41 +10:00
Ryan Pavlik
ab686ce029 include: Add RELOCATE_PROJECTROOT to xwin-config.h header
RELOCATE_PROJECTROOT is AC_DEFINED in configure.ac, but currently has no effect
as it doesn't appear in any AC_CONFIG_HEADER header.

When packaged for Windows, we do not have a unix-style filesystem tree, where
file needed by the X server can be found in fixed, absolute paths under the
prefix (PROJECTROOT).

Instead, the filesystem tree containing files needed by the X server and clients
will be installed with the directory containing the X server executable as the
root directory of that tree.

(Typically, this will be in the Program Files directory, which does not have a
fixed name, as it can be moved, localized, or added to to indicate x86 or x64
binaries)

So, RELOCATE_PROJECTROOT is used to make a native Windows build of the X server
look for various files (fonts, xkb data) in locations relative to the X server
rather than at absolute paths, by translating those paths at run-time.

Additionally the XKEYSYMDB, XERRORDB, XLOCALEDIR env vars checked by libX11 are
set appropriately for clients started by the X server.

Signed-off-by: Ryan Pavlik <rpavlik@iastate.edu>
Reviewed-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Colin Harrison <colin.harrison@virgin.net>
2013-01-16 16:48:34 +00:00
Peter Hutterer
f59499b5d0 dix: add resource type to touch listeners
Instead of guessing what resource type the listener is and what property to
retrieve, store the resource type in the listener directly.

Breaks XIT test cases:
TouchGrabTestMultipleTaps.PassiveGrabPointerEmulationMultipleTouchesFastSuccession

Fixes https://bugs.freedesktop.org/show_bug.cgi?id=56557

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Chase Douglas <chase.douglas@ubuntu.com>
2013-01-09 12:33:36 +10:00
Keith Packard
9ad0fdb135 input: Record grab pointer in TouchListener
This places a pointer to the grab related to a TouchListener directly
in the TouchListener structure rather than hoping to find the grab
later on using the resource ID.

Passive grabs have resource ID in the resource DB so they can be
removed when a client exits, and those resource IDs get copied when
activated, but implicit grabs are constructed on-the-fly and have no
resource DB entry.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2013-01-09 12:33:33 +10:00
Keith Packard
91ab237358 input: Pull TouchListener declaration to top-level
No reason to have a struct declared inside another struct

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2013-01-09 12:33:29 +10:00
Aaron Plattner
8b328d4ee3 dix: Make small bitfields that store enums unsigned
Commit 31bf81772e changed the clientState field
from a signed int to a signed int 2-bit bitfield.  The ClientState enum that is
expected to be assigned to this field has four values: ClientStateInitial (0),
ClientStateRunning (1), ClientStateRetained (2), and ClientStateGone (3).
However, because this bitfield is signed, ClientStateRetained becomes -2 when
assigned, and ClientStateGone becomes -1.  This causes warnings:

 test.c:54:10: error: case label value exceeds maximum value for type [-Werror]
 test.c:55:10: error: case label value exceeds maximum value for type [-Werror]

The code here is a switch statement:

 53     switch (client->clientState) {
 54     case ClientStateGone:
 55     case ClientStateRetained:
 56         [...]
 57         break;
 58
 59     default:
 60         [...]
 61         break;
 62     }

It also causes bizarre problems like this:

 client->clientState = ClientStateGone;
 assert(client->clientState == ClientStateGone); // this assert fails

Also change the signedness of nearby bitfields to match.

Signed-off-by: Aaron Plattner <aplattner@nvidia.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by:  Colin Harrison <colin.harrison at virgin.net>
Signed-off-by: Keith Packard <keithp@keithp.com>
2013-01-08 16:45:22 -08:00
Keith Packard
386e4d76ba Merge remote-tracking branch 'alanc/master' 2012-12-19 12:17:59 -08:00
Keith Packard
014a5c8a9d Merge remote-tracking branch 'whot/barriers'
Conflicts:
	Xi/xichangehierarchy.c

Small conflict with the patch from

	Xi: don't use devices after removing them

Was easily resolved by hand.

Signed-off-by: Keith Packard <keithp@keithp.com>
2012-12-19 12:09:31 -08:00
Alan Coopersmith
5692a1e8f5 Support compilers with alternate spellings of typeof
The AC_C_TYPEOF adds a #undef typeof to its autogenerated config.h.in
template, but b8ab93dfbc didn't copy that to dix-config.h.in
when HAVE_TYPEOF was, so the macro could claim typeof support but not
make it work, when used with compilers like Solaris Studio 12.1 which
only recognize it as __typeof__.

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
2012-12-17 23:53:25 -08:00
Peter Hutterer
21a15f9a04 Pass the event list through to the pointer barrier code to return it
Instead of having the pointer barrier code enqueue events separately from
GetPointerEvents, pass the event list through and let it add to it.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Jasper St. Pierre <jstpierre@mecheye.net>
2012-12-17 15:03:12 +10:00
Jasper St. Pierre
e130a46ab4 Add support for XI2.3: Pointer barrier events and releases.
This adds support for clients that would like to get a notification
every time a barrier is hit, and allows clients to temporarily release
a barrier so that pointers can go through them, without having to
destroy and recreate barriers.

Based on work by Chris Halse Rogers <chris.halse.rogers@canonical.com>

Signed-off-by: Jasper St. Pierre <jstpierre@mecheye.net>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2012-12-17 15:01:45 +10:00
Jasper St. Pierre
7e16dd3628 barriers: Switch to an explicit hook for barrier constrainment
Rather than riding on the ConstrainCursorHarder hook, which has
several issues, move to an explicit hook, which will help us with
some RANDR interaction issues.

Signed-off-by: Jasper St. Pierre <jstpierre@mecheye.net>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2012-12-17 15:01:33 +10:00
Peter Hutterer
a7c97d737e dix: split xi2_mask_isset into a per-device function
For touch selection conflicts, we need to check not only if the mask is set
for the device, but if it is set for only that specific device (regardless
of XIAll*Devices)

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2012-12-12 17:25:16 +10:00
Peter Hutterer
b34cffd27b include: fix comment
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2012-12-09 22:23:05 -05:00
Peter Hutterer
ce6b652929 Merge branch 'high-resolution-touch-devices' into for-keith 2012-11-29 14:49:22 +10:00
Peter Hutterer
2c4388a00e xkb: fill in keycode and event type for slow keys enablement
eventType is set for the type that triggered a XkbControlsNotify event.
Technically, SlowKeys is triggered by a timer which doesn't have a matching
core event type. So we used to use 0 here.

Practically, the timer is triggered by a key press + hold and cancelled when
the key is released before the timeout expires. So we might as well set
KeyPress (keycode) in the ControlsNotify to give clients a chance to differ
between timer-triggered SlowKeys and client-triggered ones.

This is a chance in behaviour, though I suspect with little impact.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Daniel Stone <daniel@fooishbar.org>
2012-11-29 14:48:54 +10:00
Daniel Stone
353b14ea77 DMX: Add DMX and GLX extensions
Unfortunately this also got lost in the extmod fallout, leaving the DMX
server not exposing the DMX or GLX extensions.

Signed-off-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2012-11-21 11:13:55 +11:00
Daniel Stone
db83830eef Constify argument to LoadExtension
Since we never modify it.

Signed-off-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2012-11-21 11:13:55 +11:00
Yuly Novikov
3b9f1c7017 dix: Save touchpoint last coordinates before transform. #49347
DDXTouchPointInfoRec.valuators used to store axis values after transform.
This resulted in Coordinate Transformation Matrix
being applied multiple times to the last coordinates,
in the case when only pressure changes in the last touch event.

Changed DDXTouchPointInfoRec.valuators to store values before transform.

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=49347

Signed-off-by: Yuly Novikov <ynovikov@chromium.org>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2012-11-20 16:06:06 +10:00
Thomas Jaeger
fe59774c55 Don't use GetTouchEvents in EmitTouchEnd
As before GetTouchEvents causes unwanted side effects.  Add a new
function GetDixTouchEnd, which generates a touch event from the touch
point.  We fill in the event's screen coordinates from the MD's current
sprite position.

Signed-off-by: Thomas Jaeger <ThJaeger@gmail.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2012-11-20 15:42:46 +10:00
Thomas Jaeger
cc79107a5b Don't use GetTouchEvents when replaying events
GetTouchEvents has plenty of side effects such as moving the pointer or
updating the master device, which we don't want to happen when
replaying.  The only reason for calling it was to generate a DCCE event,
but GetTouchEvents doesn't even do that right (we might need a DCCE
event even when replaying a master event, or clients could interpret
valuator data incorrectly).

This discussion is moot at the moment anyway, since DeliverTouchEvents
doesn't appear to deliver DCCE events.

Signed-off-by: Thomas Jaeger <ThJaeger@gmail.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>

[Added call to processInputProc instead of direct call to DeliverTouchEvents]

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2012-11-20 15:42:01 +10:00
Daniel Stone
710065da37 XKB: Remove component listing support
No-one uses this - not xkbcomp, not GNOME, not KDE.  The preferred way
to deal with component listing (which gives you RMLVO rather than
KcCGST) is to use the XML files on the client side.

Indeed, a couple of hours after making this commit, it emerged that all
*.dir files built with xkbcomp 1.1.1 (released two years ago) and later
have been catastrophically broken and nearly empty.  So I think that's
reasonable proof that no-one uses them.

Signed-off-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2012-11-19 12:12:28 +10:00
Peter Hutterer
fd214aabf7 input: drop FP1616 macro
The double_to_f1616() functions do the same thing, and they're tested.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
2012-11-19 12:12:23 +10:00
Yaakov Selkowitz
54ba26cb1f os: Add libnettle as a choice of SHA1 implementation
libnettle is smaller than libgcrypt, currently being released more
frequently, and has replaced the latter in gnutls-3.x (which is used
by TigerVNC, so they can avoid pulling in two crypto libraries
simultaneously).

Signed-off-by: Yaakov Selkowitz <yselkowitz@users.sourceforge.net>
Reviewed-by: Julien Cristau <jcristau@debian.org>
2012-11-05 13:34:18 -06:00