x11-toolkits/libwnck3: fix warnings, and build with lld 17

Building x11-toolkits/libwnck3 with lld 17 results in the following link
errors:

  cc  -o libwnck/libwnck-3.so.0.3.0 libwnck/libwnck-3.so.0.3.0.p/meson-generated_.._wnck-enum-types.c.o libwnck/libwnck-3.so.0.3.0.p/meson-generated_.._libwnck-resources.c.o libwnck/libwnck-3.so.0.3.0.p/application.c.o libwnck/libwnck-3.so.0.3.0.p/class-group.c.o libwnck/libwnck-3.so.0.3.0.p/pager.c.o libwnck/libwnck-3.so.0.3.0.p/screen.c.o libwnck/libwnck-3.so.0.3.0.p/selector.c.o libwnck/libwnck-3.so.0.3.0.p/tasklist.c.o libwnck/libwnck-3.so.0.3.0.p/util.c.o libwnck/libwnck-3.so.0.3.0.p/window-action-menu.c.o libwnck/libwnck-3.so.0.3.0.p/window.c.o libwnck/libwnck-3.so.0.3.0.p/wnck-image-menu-item.c.o libwnck/libwnck-3.so.0.3.0.p/workspace.c.o libwnck/libwnck-3.so.0.3.0.p/xutils.c.o libwnck/libwnck-3.so.0.3.0.p/pager-accessible.c.o libwnck/libwnck-3.so.0.3.0.p/pager-accessible-factory.c.o libwnck/libwnck-3.so.0.3.0.p/workspace-accessible.c.o libwnck/libwnck-3.so.0.3.0.p/workspace-accessible-factory.c.o -Wl,--as-needed -Wl,--no-undefined -Wl,-O1 -shared -fPIC -Wl,--start-group -Wl,-soname,libwnck-3.so.0 -fstack-protector-strong -O2 -pipe -fstack-protector-strong -isystem /usr/local/include -fno-strict-aliasing -isystem /usr/local/include -Wl,-rpath,/usr/local/lib -Wl,-rpath-link,/usr/local/lib -Wl,--version-script,/wrkdirs/share/dim/ports/x11-toolkits/libwnck3/work/libwnck-3.36.0/libwnck/libwnck-3.map -lm /usr/local/lib/libcairo.so /usr/local/lib/libXext.so /usr/local/lib/libXrender.so /usr/local/lib/libX11.so /usr/local/lib/libglib-2.0.so /usr/local/lib/libintl.so /usr/local/lib/libgobject-2.0.so /usr/local/lib/libgtk-3.so /usr/local/lib/libgdk-3.so /usr/local/lib/libharfbuzz.so /usr/local/lib/libpangocairo-1.0.so /usr/local/lib/libpango-1.0.so /usr/local/lib/libatk-1.0.so /usr/local/lib/libcairo-gobject.so /usr/local/lib/libgdk_pixbuf-2.0.so /usr/local/lib/libgio-2.0.so /usr/local/lib/libstartup-notification-1.so /usr/local/lib/libXRes.so -Wl,--end-group
  ld: error: version script assignment of 'global' to symbol '__progname' failed: symbol not defined
  ld: error: version script assignment of 'global' to symbol 'environ' failed: symbol not defined
  cc: error: linker command failed with exit code 1 (use -v to see invocation)

Commit bf6718d6 added patch-libwnck_libwnck-3.map a long time ago,
but it is unclear why. Remove the patch so the undefined symbols are no
longer referenced in the linker script.

While here, fix two warnings about incorrectly defined header guards:

  In file included from ../libwnck/pager-accessible-factory.c:20:
  ../libwnck/pager-accessible-factory.h:19:9: warning: '__WNCK_PAGER_ACCESSIBLE_FACTORY_H__' is used as a header guard here, followed by #define of a different macro [-Wheader-guard]
     19 | #ifndef __WNCK_PAGER_ACCESSIBLE_FACTORY_H__
        |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  ../libwnck/pager-accessible-factory.h:20:9: note: '__WBCK_PAGER_ACCESSIBLE_FACTORY_H__' is defined here; did you mean '__WNCK_PAGER_ACCESSIBLE_FACTORY_H__'?
     20 | #define __WBCK_PAGER_ACCESSIBLE_FACTORY_H__
        |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        |         __WNCK_PAGER_ACCESSIBLE_FACTORY_H__
  ../libwnck/workspace-accessible-factory.h:19:9: warning: '__WNCK_WORKSPACE_ACCESSIBLE_FACTORY_H__' is used as a header guard here, followed by #define of a different macro [-Wheader-guard]
     19 | #ifndef __WNCK_WORKSPACE_ACCESSIBLE_FACTORY_H__
        |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  ../libwnck/workspace-accessible-factory.h:20:9: note: '__WBCK_WORKSPACE_ACCESSIBLE_FACTORY_H__' is defined here; did you mean '__WNCK_WORKSPACE_ACCESSIBLE_FACTORY_H__'?
     20 | #define __WBCK_WORKSPACE_ACCESSIBLE_FACTORY_H__
        |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        |         __WNCK_WORKSPACE_ACCESSIBLE_FACTORY_H__

PR:		274329
Approved by:	maintainer timeout (2 weeks)
MFH:		2023Q4

x11-toolkits/libwnck3/files/patch-libwnck_libwnck-3.map

---- libwnck/libwnck-3.map.orig	2020-03-25 21:18:55 UTC
-+++ libwnck/libwnck-3.map
-@@ -1,6 +1,8 @@
- {
- global:
-     wnck_*;
-+    __progname;
-+    environ;
- local:
-     *;
- };

x11-toolkits/libwnck3/files/patch-libwnck_pager-accessible-factory.h

+--- libwnck/pager-accessible-factory.h.orig	2020-03-25 21:18:55 UTC
++++ libwnck/pager-accessible-factory.h
+@@ -17,7 +17,7 @@
+  */
+ 
+ #ifndef __WNCK_PAGER_ACCESSIBLE_FACTORY_H__
+-#define __WBCK_PAGER_ACCESSIBLE_FACTORY_H__
++#define __WNCK_PAGER_ACCESSIBLE_FACTORY_H__
+ 
+ #include <atk/atk.h>
+ 

x11-toolkits/libwnck3/files/patch-libwnck_workspace-accessible-factory.h

+--- libwnck/workspace-accessible-factory.h.orig	2020-03-25 21:18:55 UTC
++++ libwnck/workspace-accessible-factory.h
+@@ -17,7 +17,7 @@
+  */
+ 
+ #ifndef __WNCK_WORKSPACE_ACCESSIBLE_FACTORY_H__
+-#define __WBCK_WORKSPACE_ACCESSIBLE_FACTORY_H__
++#define __WNCK_WORKSPACE_ACCESSIBLE_FACTORY_H__
+ 
+ #include <atk/atk.h>
+