[gssdp] build: Add override for being used as subproject

[Jens Georg <jensgeorg src gnome org>]

commit 74f30726d685ae2b5c686bf27ab52ed3a11afe62
Author: Jens Georg <mail jensge org>
Date:   Sat May 22 17:13:50 2021 +0200

    build: Add override for being used as subproject

 libgssdp/meson.build | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/libgssdp/meson.build b/libgssdp/meson.build
index a022609..8ecb453 100644
--- a/libgssdp/meson.build
+++ b/libgssdp/meson.build
@@ -69,6 +69,8 @@ gssdp = declare_dependency(link_with : libgssdp,
                            dependencies : dependencies
                        )
 
+meson.override_dependency('gssdp-1.2', gssdp)
+
 pkg.generate(libraries: [ libgssdp ],
              subdirs: 'gssdp-1.2',
              version: meson.project_version(),