libweston,shared/meson:build Add xkbcommon missing depends

This is because e619a65b09, 'libweston: move gl-borders code into
helper lib' and 6293ab1f90, 'libweston, shared: Move out
weston_shell_get_binding_modifier' moved things out of libweston, and
libweston implicitly depends on xkbcommon.

Rather than just depending on dep_xkbcommon use the deps_for_libweston_users
which includes some other dependencies as well. Had to move it out
of libweston/meson.build and include it in the main meson.build as
libweston/meson.build would have a circular dependency on
libweston/meson.build file.

This fixes the following build issue:

[    5s] FAILED: libweston/libgl-borders.a.p/gl-borders.c.o
[    5s] cc -Ilibweston/libgl-borders.a.p -Ilibweston -I../libweston -I. -I.. -Iinclude -I../include -I/usr/include/wayland -I/usr/include/pixman-1 -I/usr/include/cairo
-I/usr/include/libpng16 -I/usr/include/freetype2 -I/usr/include/webp -fdiagnostics-color=always -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wextra -Wpedantic -std=gnu99 -Wmissing-prototypes
-Wno-unused-parameter -Wno-shift-negative-value -Wno-missing-field-initializers -Wno-pedantic -Wundef -fvisibility=hidden -O2 -Wall -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=3
-fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -Werror=return-type -flto=auto -g -fPIC -MD -MQ libweston/libgl-borders.a.p/gl-borders.c.o -MF
libweston/libgl-borders.a.p/gl-borders.c.o.d -o libweston/libgl-borders.a.p/gl-borders.c.o -c ../libweston/gl-borders.c
[    5s] In file included from ../libweston/renderer-gl/gl-renderer.h:32,
[    5s]                  from ../libweston/gl-borders.h:28,
[    5s]                  from ../libweston/gl-borders.c:31:
[    5s] ../include/libweston/libweston.h:39:10: fatal error: xkbcommon/xkbcommon.h: No such file or directory

[    4s] FAILED: shared/libshared.a.p/config-parser.c.o
[    4s] cc -Ishared/libshared.a.p -Ishared -I../shared -I. -I.. -Iinclude -I../include -I/usr/include/wayland -I/usr/include/pixman-1 -fdiagnostics-color=always -D_FILE_OFFSET_BITS=64 -Wall
-Winvalid-pch -Wextra -Wpedantic -std=gnu99 -Wmissing-prototypes -Wno-unused-parameter -Wno-shift-negative-value -Wno-missing-field-initializers -Wno-pedantic -Wundef -fvisibility=hidden -O2
-Wall -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=3 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -Werror=return-type -flto=auto -g -fPIC -MD -MQ
shared/libshared.a.p/config-parser.c.o -MF shared/libshared.a.p/config-parser.c.o.d -o shared/libshared.a.p/config-parser.c.o -c ../shared/config-parser.c
[    4s] In file included from ../shared/config-parser.c:44:
[    4s] ../include/libweston/libweston.h:39:10: fatal error: xkbcommon/xkbcommon.h: No such file or directory

Reported-by: Jan Engelhardt <jengelh@inai.de>
Signed-off-by: Jan Engelhardt <jengelh@inai.de>
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>

libweston/meson.build

@@ -112,11 +112,6 @@ lib_weston = shared_library(
 	dependencies: deps_libweston
 )
 
-deps_for_libweston_users = [
-	dep_wayland_server,
-	dep_pixman,
-	dep_xkbcommon,
-]
 
 # For external users, like Weston.
 dep_libweston_public = declare_dependency(
@@ -255,6 +250,7 @@ lib_gl_borders = static_library(
 	dependencies: [
 		dep_lib_cairo_shared,
 		dep_egl, # for gl-renderer.h
+		deps_for_libweston_users,
 	],
 	build_by_default: false,
 	install: false

meson.build

@@ -153,6 +153,13 @@ prog_python = import('python').find_installation('python3')
 files_xxd_py = files('tools/xxd.py')
 cmd_xxd = [ prog_python, files_xxd_py, '@INPUT@', '@OUTPUT@' ]
 
+deps_for_libweston_users = [
+	dep_wayland_server,
+	dep_pixman,
+	dep_xkbcommon,
+]
+
+
 subdir('include')
 subdir('protocol')
 subdir('shared')

shared/meson.build

@@ -7,7 +7,8 @@ srcs_libshared = [
         'process-util.c',
 	'hash.c',
 ]
-deps_libshared = [dep_wayland_client, dep_wayland_server, dep_pixman]
+deps_libshared = [dep_wayland_client, dep_wayland_server,
+                  dep_pixman, deps_for_libweston_users]
 
 lib_libshared = static_library(
 	'shared',