meson: Create and use a dependency for libcamera and its headers

Instead of manually adding the libcamera library and include path to
every target that requires it, declare a dependency that groups the
headers as source, the library and the include path, and use it through
the project. This simplifies handling of the dependency.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

src/qcam/meson.build

@@ -15,9 +15,7 @@ qt5_dep = dependency('qt5',
 
 if qt5_dep.found()
     qcam  = executable('qcam', qcam_sources,
-                       link_with : libcamera,
                        install : true,
-                       include_directories : libcamera_includes,
-                       dependencies : qt5_dep,
+                       dependencies : [libcamera_dep, qt5_dep],
                        cpp_args : '-DQT_NO_KEYWORDS')
 endif