Merge branch 'sunweaver-pr/libnx-x11-autoreconf' into 3.6.x

Attributes GH PR #498: https://github.com/ArcticaProject/nx-libs/pull/498

1 files changed, 814 insertions, 0 deletions

diff --git a/nx-X11/lib/src/xkb/XKBUse.c b/nx-X11/lib/src/xkb/XKBUse.c
new file mode 100644
index 000000000..cf6497551
--- /dev/null
+++ b/nx-X11/lib/src/xkb/XKBUse.c
@@ -0,0 +1,814 @@
+/************************************************************
+Copyright (c) 1993 by Silicon Graphics Computer Systems, Inc.
+
+Permission to use, copy, modify, and distribute this
+software and its documentation for any purpose and without
+fee is hereby granted, provided that the above copyright
+notice appear in all copies and that both that copyright
+notice and this permission notice appear in supporting
+documentation, and that the name of Silicon Graphics not be
+used in advertising or publicity pertaining to distribution
+of the software without specific prior written permission.
+Silicon Graphics makes no representation about the suitability
+of this software for any purpose. It is provided "as is"
+without any express or implied warranty.
+
+SILICON GRAPHICS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
+SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
+GRAPHICS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
+DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION  WITH
+THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+********************************************************/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <stdio.h>
+#include <ctype.h>
+#include "Xlibint.h"
+#include <nx-X11/extensions/XKBproto.h>
+#include "XKBlibint.h"
+
+static Bool _XkbIgnoreExtension = False;
+
+void
+XkbNoteMapChanges(XkbMapChangesPtr old,
+                  XkbMapNotifyEvent *new,
+                  unsigned wanted)
+{
+    int first, oldLast, newLast;
+
+    wanted &= new->changed;
+
+    if (wanted & XkbKeyTypesMask) {
+        if (old->changed & XkbKeyTypesMask) {
+            first = old->first_type;
+            oldLast = old->first_type + old->num_types - 1;
+            newLast = new->first_type + new->num_types - 1;
+
+            if (new->first_type < first)
+                first = new->first_type;
+            if (oldLast > newLast)
+                newLast = oldLast;
+            old->first_type = first;
+            old->num_types = newLast - first + 1;
+        }
+        else {
+            old->first_type = new->first_type;
+            old->num_types = new->num_types;
+        }
+    }
+    if (wanted & XkbKeySymsMask) {
+        if (old->changed & XkbKeySymsMask) {
+            first = old->first_key_sym;
+            oldLast = old->first_key_sym + old->num_key_syms - 1;
+            newLast = new->first_key_sym + new->num_key_syms - 1;
+
+            if (new->first_key_sym < first)
+                first = new->first_key_sym;
+            if (oldLast > newLast)
+                newLast = oldLast;
+            old->first_key_sym = first;
+            old->num_key_syms = newLast - first + 1;
+        }
+        else {
+            old->first_key_sym = new->first_key_sym;
+            old->num_key_syms = new->num_key_syms;
+        }
+    }
+    if (wanted & XkbKeyActionsMask) {
+        if (old->changed & XkbKeyActionsMask) {
+            first = old->first_key_act;
+            oldLast = old->first_key_act + old->num_key_acts - 1;
+            newLast = new->first_key_act + new->num_key_acts - 1;
+
+            if (new->first_key_act < first)
+                first = new->first_key_act;
+            if (oldLast > newLast)
+                newLast = oldLast;
+            old->first_key_act = first;
+            old->num_key_acts = newLast - first + 1;
+        }
+        else {
+            old->first_key_act = new->first_key_act;
+            old->num_key_acts = new->num_key_acts;
+        }
+    }
+    if (wanted & XkbKeyBehaviorsMask) {
+        if (old->changed & XkbKeyBehaviorsMask) {
+            first = old->first_key_behavior;
+            oldLast = old->first_key_behavior + old->num_key_behaviors - 1;
+            newLast = new->first_key_behavior + new->num_key_behaviors - 1;
+
+            if (new->first_key_behavior < first)
+                first = new->first_key_behavior;
+            if (oldLast > newLast)
+                newLast = oldLast;
+            old->first_key_behavior = first;
+            old->num_key_behaviors = newLast - first + 1;
+        }
+        else {
+            old->first_key_behavior = new->first_key_behavior;
+            old->num_key_behaviors = new->num_key_behaviors;
+        }
+    }
+    if (wanted & XkbVirtualModsMask) {
+        old->vmods |= new->vmods;
+    }
+    if (wanted & XkbExplicitComponentsMask) {
+        if (old->changed & XkbExplicitComponentsMask) {
+            first = old->first_key_explicit;
+            oldLast = old->first_key_explicit + old->num_key_explicit - 1;
+            newLast = new->first_key_explicit + new->num_key_explicit - 1;
+
+            if (new->first_key_explicit < first)
+                first = new->first_key_explicit;
+            if (oldLast > newLast)
+                newLast = oldLast;
+            old->first_key_explicit = first;
+            old->num_key_explicit = newLast - first + 1;
+        }
+        else {
+            old->first_key_explicit = new->first_key_explicit;
+            old->num_key_explicit = new->num_key_explicit;
+        }
+    }
+    if (wanted & XkbModifierMapMask) {
+        if (old->changed & XkbModifierMapMask) {
+            first = old->first_modmap_key;
+            oldLast = old->first_modmap_key + old->num_modmap_keys - 1;
+            newLast = new->first_modmap_key + new->num_modmap_keys - 1;
+
+            if (new->first_modmap_key < first)
+                first = new->first_modmap_key;
+            if (oldLast > newLast)
+                newLast = oldLast;
+            old->first_modmap_key = first;
+            old->num_modmap_keys = newLast - first + 1;
+        }
+        else {
+            old->first_modmap_key = new->first_modmap_key;
+            old->num_modmap_keys = new->num_modmap_keys;
+        }
+    }
+    if (wanted & XkbVirtualModMapMask) {
+        if (old->changed & XkbVirtualModMapMask) {
+            first = old->first_vmodmap_key;
+            oldLast = old->first_vmodmap_key + old->num_vmodmap_keys - 1;
+            newLast = new->first_vmodmap_key + new->num_vmodmap_keys - 1;
+
+            if (new->first_vmodmap_key < first)
+                first = new->first_vmodmap_key;
+            if (oldLast > newLast)
+                newLast = oldLast;
+            old->first_vmodmap_key = first;
+            old->num_vmodmap_keys = newLast - first + 1;
+        }
+        else {
+            old->first_vmodmap_key = new->first_vmodmap_key;
+            old->num_vmodmap_keys = new->num_vmodmap_keys;
+        }
+    }
+    old->changed |= wanted;
+    return;
+}
+
+void
+_XkbNoteCoreMapChanges(XkbMapChangesPtr old,
+                       XMappingEvent *new,
+                       unsigned int wanted)
+{
+    int first, oldLast, newLast;
+
+    if ((new->request == MappingKeyboard) && (wanted & XkbKeySymsMask)) {
+        if (old->changed & XkbKeySymsMask) {
+            first = old->first_key_sym;
+            oldLast = old->first_key_sym + old->num_key_syms - 1;
+            newLast = new->first_keycode + new->count - 1;
+
+            if (new->first_keycode < first)
+                first = new->first_keycode;
+            if (oldLast > newLast)
+                newLast = oldLast;
+            old->first_key_sym = first;
+            old->num_key_syms = newLast - first + 1;
+        }
+        else {
+            old->changed |= XkbKeySymsMask;
+            old->first_key_sym = new->first_keycode;
+            old->num_key_syms = new->count;
+        }
+    }
+    return;
+}
+
+static Bool
+wire_to_event(Display *dpy, XEvent *re, xEvent *event)
+{
+    xkbEvent *xkbevent = (xkbEvent *) event;
+    XkbInfoPtr xkbi;
+
+    if ((dpy->flags & XlibDisplayNoXkb) ||
+        (!dpy->xkb_info && !XkbUseExtension(dpy, NULL, NULL)))
+        return False;
+    xkbi = dpy->xkb_info;
+    if (((event->u.u.type & 0x7f) - xkbi->codes->first_event) != XkbEventCode)
+        return False;
+
+    switch (xkbevent->u.any.xkbType) {
+    case XkbStateNotify:
+    {
+        xkbStateNotify *sn = (xkbStateNotify *) event;
+
+        if (xkbi->selected_events & XkbStateNotifyMask) {
+            XkbStateNotifyEvent *sev = (XkbStateNotifyEvent *) re;
+
+            sev->type = XkbEventCode + xkbi->codes->first_event;
+            sev->xkb_type = XkbStateNotify;
+            sev->serial = _XSetLastRequestRead(dpy, (xGenericReply *) event);
+            sev->send_event = ((event->u.u.type & 0x80) != 0);
+            sev->display = dpy;
+            sev->time = sn->time;
+            sev->device = sn->deviceID;
+            sev->keycode = sn->keycode;
+            sev->event_type = sn->eventType;
+            sev->req_major = sn->requestMajor;
+            sev->req_minor = sn->requestMinor;
+            sev->changed = sn->changed;
+            sev->group = sn->group;
+            sev->base_group = sn->baseGroup;
+            sev->latched_group = sn->latchedGroup;
+            sev->locked_group = sn->lockedGroup;
+            sev->mods = sn->mods;
+            sev->base_mods = sn->baseMods;
+            sev->latched_mods = sn->latchedMods;
+            sev->locked_mods = sn->lockedMods;
+            sev->compat_state = sn->compatState;
+            sev->grab_mods = sn->grabMods;
+            sev->compat_grab_mods = sn->compatGrabMods;
+            sev->lookup_mods = sn->lookupMods;
+            sev->compat_lookup_mods = sn->compatLookupMods;
+            sev->ptr_buttons = sn->ptrBtnState;
+            return True;
+        }
+    }
+        break;
+    case XkbMapNotify:
+    {
+        xkbMapNotify *mn = (xkbMapNotify *) event;
+
+        if ((xkbi->selected_events & XkbMapNotifyMask) &&
+            (xkbi->selected_map_details & mn->changed)) {
+            XkbMapNotifyEvent *mev = (XkbMapNotifyEvent *) re;
+
+            mev->type = XkbEventCode + xkbi->codes->first_event;
+            mev->xkb_type = XkbMapNotify;
+            mev->serial = _XSetLastRequestRead(dpy, (xGenericReply *) event);
+            mev->send_event = ((event->u.u.type & 0x80) != 0);
+            mev->display = dpy;
+            mev->time = mn->time;
+            mev->device = mn->deviceID;
+            mev->changed = mn->changed;
+            mev->min_key_code = mn->minKeyCode;
+            mev->max_key_code = mn->maxKeyCode;
+            mev->first_type = mn->firstType;
+            mev->num_types = mn->nTypes;
+            mev->first_key_sym = mn->firstKeySym;
+            mev->num_key_syms = mn->nKeySyms;
+            mev->first_key_act = mn->firstKeyAct;
+            mev->num_key_acts = mn->nKeyActs;
+            mev->first_key_behavior = mn->firstKeyBehavior;
+            mev->num_key_behaviors = mn->nKeyBehaviors;
+            mev->vmods = mn->virtualMods;
+            mev->first_key_explicit = mn->firstKeyExplicit;
+            mev->num_key_explicit = mn->nKeyExplicit;
+            mev->first_modmap_key = mn->firstModMapKey;
+            mev->num_modmap_keys = mn->nModMapKeys;
+            mev->first_vmodmap_key = mn->firstVModMapKey;
+            mev->num_vmodmap_keys = mn->nVModMapKeys;
+            XkbNoteMapChanges(&xkbi->changes, mev, XKB_XLIB_MAP_MASK);
+            if (xkbi->changes.changed)
+                xkbi->flags |= XkbMapPending;
+            return True;
+        }
+        else if (mn->nKeySyms > 0) {
+            register XMappingEvent *ev = (XMappingEvent *) re;
+
+            ev->type = MappingNotify;
+            ev->serial = _XSetLastRequestRead(dpy, (xGenericReply *) event);
+            ev->send_event = ((event->u.u.type & 0x80) != 0);
+            ev->display = dpy;
+            ev->window = 0;
+            ev->first_keycode = mn->firstKeySym;
+            ev->request = MappingKeyboard;
+            ev->count = mn->nKeySyms;
+            _XkbNoteCoreMapChanges(&xkbi->changes, ev, XKB_XLIB_MAP_MASK);
+            if (xkbi->changes.changed)
+                xkbi->flags |= XkbMapPending;
+            return True;
+        }
+    }
+        break;
+    case XkbControlsNotify:
+    {
+        if (xkbi->selected_events & XkbControlsNotifyMask) {
+            xkbControlsNotify *cn = (xkbControlsNotify *) event;
+            XkbControlsNotifyEvent *cev = (XkbControlsNotifyEvent *) re;
+
+            cev->type = XkbEventCode + xkbi->codes->first_event;
+            cev->xkb_type = XkbControlsNotify;
+            cev->serial = _XSetLastRequestRead(dpy, (xGenericReply *) event);
+            cev->send_event = ((event->u.u.type & 0x80) != 0);
+            cev->display = dpy;
+            cev->time = cn->time;
+            cev->device = cn->deviceID;
+            cev->changed_ctrls = cn->changedControls;
+            cev->enabled_ctrls = cn->enabledControls;
+            cev->enabled_ctrl_changes = cn->enabledControlChanges;
+            cev->keycode = cn->keycode;
+            cev->num_groups = cn->numGroups;
+            cev->event_type = cn->eventType;
+            cev->req_major = cn->requestMajor;
+            cev->req_minor = cn->requestMinor;
+            return True;
+        }
+    }
+        break;
+    case XkbIndicatorMapNotify:
+    {
+        if (xkbi->selected_events & XkbIndicatorMapNotifyMask) {
+            xkbIndicatorNotify *in = (xkbIndicatorNotify *) event;
+            XkbIndicatorNotifyEvent *iev = (XkbIndicatorNotifyEvent *) re;
+
+            iev->type = XkbEventCode + xkbi->codes->first_event;
+            iev->xkb_type = XkbIndicatorMapNotify;
+            iev->serial = _XSetLastRequestRead(dpy, (xGenericReply *) event);
+            iev->send_event = ((event->u.u.type & 0x80) != 0);
+            iev->display = dpy;
+            iev->time = in->time;
+            iev->device = in->deviceID;
+            iev->changed = in->changed;
+            iev->state = in->state;
+            return True;
+        }
+    }
+        break;
+    case XkbIndicatorStateNotify:
+    {
+        if (xkbi->selected_events & XkbIndicatorStateNotifyMask) {
+            xkbIndicatorNotify *in = (xkbIndicatorNotify *) event;
+            XkbIndicatorNotifyEvent *iev = (XkbIndicatorNotifyEvent *) re;
+
+            iev->type = XkbEventCode + xkbi->codes->first_event;
+            iev->xkb_type = XkbIndicatorStateNotify;
+            iev->serial = _XSetLastRequestRead(dpy, (xGenericReply *) event);
+            iev->send_event = ((event->u.u.type & 0x80) != 0);
+            iev->display = dpy;
+            iev->time = in->time;
+            iev->device = in->deviceID;
+            iev->changed = in->changed;
+            iev->state = in->state;
+            return True;
+        }
+    }
+        break;
+    case XkbBellNotify:
+    {
+        if (xkbi->selected_events & XkbBellNotifyMask) {
+            xkbBellNotify *bn = (xkbBellNotify *) event;
+            XkbBellNotifyEvent *bev = (XkbBellNotifyEvent *) re;
+
+            bev->type = XkbEventCode + xkbi->codes->first_event;
+            bev->xkb_type = XkbBellNotify;
+            bev->serial = _XSetLastRequestRead(dpy, (xGenericReply *) event);
+            bev->send_event = ((event->u.u.type & 0x80) != 0);
+            bev->display = dpy;
+            bev->time = bn->time;
+            bev->device = bn->deviceID;
+            bev->percent = bn->percent;
+            bev->pitch = bn->pitch;
+            bev->duration = bn->duration;
+            bev->bell_class = bn->bellClass;
+            bev->bell_id = bn->bellID;
+            bev->name = bn->name;
+            bev->window = bn->window;
+            bev->event_only = bn->eventOnly;
+            return True;
+        }
+    }
+        break;
+    case XkbAccessXNotify:
+    {
+        if (xkbi->selected_events & XkbAccessXNotifyMask) {
+            xkbAccessXNotify *axn = (xkbAccessXNotify *) event;
+            XkbAccessXNotifyEvent *axev = (XkbAccessXNotifyEvent *) re;
+
+            axev->type = XkbEventCode + xkbi->codes->first_event;
+            axev->xkb_type = XkbAccessXNotify;
+            axev->serial = _XSetLastRequestRead(dpy, (xGenericReply *) event);
+            axev->send_event = ((event->u.u.type & 0x80) != 0);
+            axev->display = dpy;
+            axev->time = axn->time;
+            axev->device = axn->deviceID;
+            axev->detail = axn->detail;
+            axev->keycode = axn->keycode;
+            axev->sk_delay = axn->slowKeysDelay;
+            axev->debounce_delay = axn->debounceDelay;
+            return True;
+        }
+    }
+        break;
+    case XkbNamesNotify:
+    {
+        if (xkbi->selected_events & XkbNamesNotifyMask) {
+            xkbNamesNotify *nn = (xkbNamesNotify *) event;
+            XkbNamesNotifyEvent *nev = (XkbNamesNotifyEvent *) re;
+
+            nev->type = XkbEventCode + xkbi->codes->first_event;
+            nev->xkb_type = XkbNamesNotify;
+            nev->serial = _XSetLastRequestRead(dpy, (xGenericReply *) event);
+            nev->send_event = ((event->u.u.type & 0x80) != 0);
+            nev->display = dpy;
+            nev->time = nn->time;
+            nev->device = nn->deviceID;
+            nev->changed = nn->changed;
+            nev->first_type = nn->firstType;
+            nev->num_types = nn->nTypes;
+            nev->first_lvl = nn->firstLevelName;
+            nev->num_lvls = nn->nLevelNames;
+            nev->num_aliases = nn->nAliases;
+            nev->num_radio_groups = nn->nRadioGroups;
+            nev->changed_vmods = nn->changedVirtualMods;
+            nev->changed_groups = nn->changedGroupNames;
+            nev->changed_indicators = nn->changedIndicators;
+            nev->first_key = nn->firstKey;
+            nev->num_keys = nn->nKeys;
+            return True;
+        }
+    }
+        break;
+    case XkbCompatMapNotify:
+    {
+        if (xkbi->selected_events & XkbCompatMapNotifyMask) {
+            xkbCompatMapNotify *cmn = (xkbCompatMapNotify *) event;
+            XkbCompatMapNotifyEvent *cmev = (XkbCompatMapNotifyEvent *) re;
+
+            cmev->type = XkbEventCode + xkbi->codes->first_event;
+            cmev->xkb_type = XkbCompatMapNotify;
+            cmev->serial = _XSetLastRequestRead(dpy, (xGenericReply *) event);
+            cmev->send_event = ((event->u.u.type & 0x80) != 0);
+            cmev->display = dpy;
+            cmev->time = cmn->time;
+            cmev->device = cmn->deviceID;
+            cmev->changed_groups = cmn->changedGroups;
+            cmev->first_si = cmn->firstSI;
+            cmev->num_si = cmn->nSI;
+            cmev->num_total_si = cmn->nTotalSI;
+            return True;
+        }
+    }
+        break;
+    case XkbActionMessage:
+    {
+        if (xkbi->selected_events & XkbActionMessageMask) {
+            xkbActionMessage *am = (xkbActionMessage *) event;
+            XkbActionMessageEvent *amev = (XkbActionMessageEvent *) re;
+
+            amev->type = XkbEventCode + xkbi->codes->first_event;
+            amev->xkb_type = XkbActionMessage;
+            amev->serial = _XSetLastRequestRead(dpy, (xGenericReply *) event);
+            amev->send_event = ((event->u.u.type & 0x80) != 0);
+            amev->display = dpy;
+            amev->time = am->time;
+            amev->device = am->deviceID;
+            amev->keycode = am->keycode;
+            amev->press = am->press;
+            amev->key_event_follows = am->keyEventFollows;
+            amev->group = am->group;
+            amev->mods = am->mods;
+            memcpy(amev->message, am->message, XkbActionMessageLength);
+            amev->message[XkbActionMessageLength] = '\0';
+            return True;
+        }
+    }
+        break;
+    case XkbExtensionDeviceNotify:
+    {
+        if (xkbi->selected_events & XkbExtensionDeviceNotifyMask) {
+            xkbExtensionDeviceNotify *ed = (xkbExtensionDeviceNotify *) event;
+            XkbExtensionDeviceNotifyEvent *edev
+                = (XkbExtensionDeviceNotifyEvent *) re;
+
+            edev->type = XkbEventCode + xkbi->codes->first_event;
+            edev->xkb_type = XkbExtensionDeviceNotify;
+            edev->serial = _XSetLastRequestRead(dpy, (xGenericReply *) event);
+            edev->send_event = ((event->u.u.type & 0x80) != 0);
+            edev->display = dpy;
+            edev->time = ed->time;
+            edev->device = ed->deviceID;
+            edev->led_class = ed->ledClass;
+            edev->led_id = ed->ledID;
+            edev->reason = ed->reason;
+            edev->supported = ed->supported;
+            edev->leds_defined = ed->ledsDefined;
+            edev->led_state = ed->ledState;
+            edev->first_btn = ed->firstBtn;
+            edev->num_btns = ed->nBtns;
+            edev->unsupported = ed->unsupported;
+            return True;
+        }
+    }
+        break;
+    case XkbNewKeyboardNotify:
+    {
+        xkbNewKeyboardNotify *nkn = (xkbNewKeyboardNotify *) event;
+
+        if ((xkbi->selected_events & XkbNewKeyboardNotifyMask) &&
+            (xkbi->selected_nkn_details & nkn->changed)) {
+            XkbNewKeyboardNotifyEvent *nkev = (XkbNewKeyboardNotifyEvent *) re;
+
+            nkev->type = XkbEventCode + xkbi->codes->first_event;
+            nkev->xkb_type = XkbNewKeyboardNotify;
+            nkev->serial = _XSetLastRequestRead(dpy, (xGenericReply *) event);
+            nkev->send_event = ((event->u.u.type & 0x80) != 0);
+            nkev->display = dpy;
+            nkev->time = nkn->time;
+            nkev->device = nkn->deviceID;
+            nkev->old_device = nkn->oldDeviceID;
+            nkev->min_key_code = nkn->minKeyCode;
+            nkev->max_key_code = nkn->maxKeyCode;
+            nkev->old_min_key_code = nkn->oldMinKeyCode;
+            nkev->old_max_key_code = nkn->oldMaxKeyCode;
+            nkev->req_major = nkn->requestMajor;
+            nkev->req_minor = nkn->requestMinor;
+            nkev->changed = nkn->changed;
+            if ((xkbi->desc) && (nkev->send_event == 0) &&
+                ((xkbi->desc->device_spec == nkev->old_device) ||
+                 (nkev->device != nkev->old_device))) {
+                xkbi->flags = XkbMapPending | XkbXlibNewKeyboard;
+            }
+            return True;
+        }
+        else if (nkn->changed & (XkbNKN_KeycodesMask | XkbNKN_DeviceIDMask)) {
+            register XMappingEvent *ev = (XMappingEvent *) re;
+
+            ev->type = MappingNotify;
+            ev->serial = _XSetLastRequestRead(dpy, (xGenericReply *) event);
+            ev->send_event = ((event->u.u.type & 0x80) != 0);
+            ev->display = dpy;
+            ev->window = 0;
+            ev->first_keycode = dpy->min_keycode;
+            ev->request = MappingKeyboard;
+            ev->count = (dpy->max_keycode - dpy->min_keycode) + 1;
+            if ((xkbi->desc) && (ev->send_event == 0) &&
+                ((xkbi->desc->device_spec == nkn->oldDeviceID) ||
+                 (nkn->deviceID != nkn->oldDeviceID))) {
+                xkbi->flags |= XkbMapPending | XkbXlibNewKeyboard;
+            }
+            return True;
+        }
+    }
+        break;
+    default:
+#ifdef DEBUG
+        fprintf(stderr, "Got unknown XKEYBOARD event (%d, base=%d)\n",
+                re->type, xkbi->codes->first_event);
+#endif
+        break;
+    }
+    return False;
+}
+
+Bool
+XkbIgnoreExtension(Bool ignore)
+{
+    if (getenv("XKB_FORCE") != NULL) {
+#ifdef DEBUG
+        fprintf(stderr,
+                "Forcing use of XKEYBOARD (overriding an IgnoreExtensions)\n");
+#endif
+        return False;
+    }
+#ifdef DEBUG
+    else if (getenv("XKB_DEBUG") != NULL) {
+        fprintf(stderr, "Explicitly %signoring XKEYBOARD\n",
+                ignore ? "" : "not ");
+    }
+#endif
+    _XkbIgnoreExtension = ignore;
+    return True;
+}
+
+static void
+_XkbFreeInfo(Display *dpy)
+{
+    XkbInfoPtr xkbi = dpy->xkb_info;
+
+    if (xkbi) {
+        if (xkbi->desc)
+            XkbFreeKeyboard(xkbi->desc, XkbAllComponentsMask, True);
+        Xfree(xkbi);
+    }
+}
+
+Bool
+XkbUseExtension(Display *dpy, int *major_rtrn, int *minor_rtrn)
+{
+    xkbUseExtensionReply rep;
+    register xkbUseExtensionReq *req;
+    XExtCodes *codes;
+    int ev_base, forceIgnore;
+    XkbInfoPtr xkbi;
+    char *str;
+    static int debugMsg;
+    static int been_here = 0;
+
+    if (dpy->xkb_info && !(dpy->flags & XlibDisplayNoXkb)) {
+        if (major_rtrn)
+            *major_rtrn = dpy->xkb_info->srv_major;
+        if (minor_rtrn)
+            *minor_rtrn = dpy->xkb_info->srv_minor;
+        return True;
+    }
+    if (!been_here) {
+        debugMsg = (getenv("XKB_DEBUG") != NULL);
+        been_here = 1;
+    }
+
+    if (major_rtrn)
+        *major_rtrn = 0;
+    if (minor_rtrn)
+        *minor_rtrn = 0;
+
+    if (!dpy->xkb_info) {
+        xkbi = _XkbTypedCalloc(1, XkbInfoRec);
+        if (!xkbi)
+            return False;
+        dpy->xkb_info = xkbi;
+        dpy->free_funcs->xkb = _XkbFreeInfo;
+
+        xkbi->xlib_ctrls |= (XkbLC_ControlFallback | XkbLC_ConsumeLookupMods);
+        if ((str = getenv("_XKB_OPTIONS_ENABLE")) != NULL) {
+            if ((str = getenv("_XKB_LATIN1_LOOKUP")) != NULL) {
+                if ((strcmp(str, "off") == 0) || (strcmp(str, "0") == 0))
+                    xkbi->xlib_ctrls &= ~XkbLC_ForceLatin1Lookup;
+                else
+                    xkbi->xlib_ctrls |= XkbLC_ForceLatin1Lookup;
+            }
+            if ((str = getenv("_XKB_CONSUME_LOOKUP_MODS")) != NULL) {
+                if ((strcmp(str, "off") == 0) || (strcmp(str, "0") == 0))
+                    xkbi->xlib_ctrls &= ~XkbLC_ConsumeLookupMods;
+                else
+                    xkbi->xlib_ctrls |= XkbLC_ConsumeLookupMods;
+            }
+            if ((str = getenv("_XKB_CONSUME_SHIFT_AND_LOCK")) != NULL) {
+                if ((strcmp(str, "off") == 0) || (strcmp(str, "0") == 0))
+                    xkbi->xlib_ctrls &= ~XkbLC_AlwaysConsumeShiftAndLock;
+                else
+                    xkbi->xlib_ctrls |= XkbLC_AlwaysConsumeShiftAndLock;
+            }
+            if ((str = getenv("_XKB_IGNORE_NEW_KEYBOARDS")) != NULL) {
+                if ((strcmp(str, "off") == 0) || (strcmp(str, "0") == 0))
+                    xkbi->xlib_ctrls &= ~XkbLC_IgnoreNewKeyboards;
+                else
+                    xkbi->xlib_ctrls |= XkbLC_IgnoreNewKeyboards;
+            }
+            if ((str = getenv("_XKB_CONTROL_FALLBACK")) != NULL) {
+                if ((strcmp(str, "off") == 0) || (strcmp(str, "0") == 0))
+                    xkbi->xlib_ctrls &= ~XkbLC_ControlFallback;
+                else
+                    xkbi->xlib_ctrls |= XkbLC_ControlFallback;
+            }
+            if ((str = getenv("_XKB_COMP_LED")) != NULL) {
+                if ((strcmp(str, "off") == 0) || (strcmp(str, "0") == 0))
+                    xkbi->xlib_ctrls &= ~XkbLC_ComposeLED;
+                else {
+                    xkbi->xlib_ctrls |= XkbLC_ComposeLED;
+                    if (strlen(str) > 0)
+                        xkbi->composeLED = XInternAtom(dpy, str, False);
+                }
+            }
+            if ((str = getenv("_XKB_COMP_FAIL_BEEP")) != NULL) {
+                if ((strcmp(str, "off") == 0) || (strcmp(str, "0") == 0))
+                    xkbi->xlib_ctrls &= ~XkbLC_BeepOnComposeFail;
+                else
+                    xkbi->xlib_ctrls |= XkbLC_BeepOnComposeFail;
+            }
+        }
+        if ((xkbi->composeLED == None) &&
+            ((xkbi->xlib_ctrls & XkbLC_ComposeLED) != 0))
+            xkbi->composeLED = XInternAtom(dpy, "Compose", False);
+#ifdef DEBUG
+        if (debugMsg) {
+            register unsigned c = xkbi->xlib_ctrls;
+
+            fprintf(stderr,
+                    "XKEYBOARD compose: beep on failure is %s, LED is %s\n",
+                    ((c & XkbLC_BeepOnComposeFail) ? "on" : "off"),
+                    ((c & XkbLC_ComposeLED) ? "on" : "off"));
+            fprintf(stderr,
+                    "XKEYBOARD XLookupString: %slatin-1, %s lookup modifiers\n",
+                    ((c & XkbLC_ForceLatin1Lookup) ? "allow non-" : "force "),
+                    ((c & XkbLC_ConsumeLookupMods) ? "consume" : "re-use"));
+            fprintf(stderr,
+                    "XKEYBOARD XLookupString: %sconsume shift and lock, %scontrol fallback\n",
+                    ((c & XkbLC_AlwaysConsumeShiftAndLock) ? "always " :
+                     "don't "), ((c & XkbLC_ControlFallback) ? "" : "no "));
+
+        }
+#endif
+    }
+    else
+        xkbi = dpy->xkb_info;
+
+    forceIgnore = (dpy->flags & XlibDisplayNoXkb) || dpy->keysyms;
+    forceIgnore = forceIgnore && (major_rtrn == NULL) && (minor_rtrn == NULL);
+    if (forceIgnore || _XkbIgnoreExtension || getenv("XKB_DISABLE")) {
+        LockDisplay(dpy);
+        dpy->flags |= XlibDisplayNoXkb;
+        UnlockDisplay(dpy);
+        if (debugMsg)
+            fprintf(stderr, "XKEYBOARD extension disabled or missing\n");
+        return False;
+    }
+
+    if ((codes = XInitExtension(dpy, XkbName)) == NULL) {
+        LockDisplay(dpy);
+        dpy->flags |= XlibDisplayNoXkb;
+        UnlockDisplay(dpy);
+        if (debugMsg)
+            fprintf(stderr, "XKEYBOARD extension not present\n");
+        return False;
+    }
+    xkbi->codes = codes;
+    LockDisplay(dpy);
+
+    GetReq(kbUseExtension, req);
+    req->reqType = xkbi->codes->major_opcode;
+    req->xkbReqType = X_kbUseExtension;
+    req->wantedMajor = XkbMajorVersion;
+    req->wantedMinor = XkbMinorVersion;
+    if (!_XReply(dpy, (xReply *) &rep, 0, xFalse) || !rep.supported) {
+        Bool fail = True;
+
+        if (debugMsg)
+            fprintf(stderr,
+                    "XKEYBOARD version mismatch (want %d.%02d, got %d.%02d)\n",
+                    XkbMajorVersion, XkbMinorVersion,
+                    rep.serverMajor, rep.serverMinor);
+
+        /* pre-release 0.65 is very close to 1.00 */
+        if ((rep.serverMajor == 0) && (rep.serverMinor == 65)) {
+            if (debugMsg)
+                fprintf(stderr, "Trying to fall back to version 0.65...");
+            GetReq(kbUseExtension, req);
+            req->reqType = xkbi->codes->major_opcode;
+            req->xkbReqType = X_kbUseExtension;
+            req->wantedMajor = 0;
+            req->wantedMinor = 65;
+            if (_XReply(dpy, (xReply *) &rep, 0, xFalse) && rep.supported) {
+                if (debugMsg)
+                    fprintf(stderr, "succeeded\n");
+                fail = False;
+            }
+            else if (debugMsg)
+                fprintf(stderr, "failed\n");
+        }
+        if (fail) {
+            dpy->flags |= XlibDisplayNoXkb;
+            UnlockDisplay(dpy);
+            SyncHandle();
+            if (major_rtrn)
+                *major_rtrn = rep.serverMajor;
+            if (minor_rtrn)
+                *minor_rtrn = rep.serverMinor;
+            return False;
+        }
+    }
+#ifdef DEBUG
+    else if (forceIgnore) {
+        fprintf(stderr,
+                "Internal Error!  XkbUseExtension succeeded with forceIgnore set\n");
+    }
+#endif
+    UnlockDisplay(dpy);
+    xkbi->srv_major = rep.serverMajor;
+    xkbi->srv_minor = rep.serverMinor;
+    if (major_rtrn)
+        *major_rtrn = rep.serverMajor;
+    if (minor_rtrn)
+        *minor_rtrn = rep.serverMinor;
+    if (debugMsg)
+        fprintf(stderr, "XKEYBOARD (version %d.%02d/%d.%02d) OK!\n",
+                XkbMajorVersion, XkbMinorVersion,
+                rep.serverMajor, rep.serverMinor);
+
+    ev_base = codes->first_event;
+    XESetWireToEvent(dpy, ev_base + XkbEventCode, wire_to_event);
+    SyncHandle();
+    return True;
+}