osmesa: add exported symbols check

Signed-off-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/1308>

src/gallium/targets/osmesa/meson.build

@@ -64,6 +64,18 @@ libosmesa = shared_library(
   install : true,
 )
 
+if with_symbols_check
+  test('osmesa-symbols-check',
+    symbols_check,
+    args : [
+      '--lib', libosmesa,
+      '--symbols-file', files('osmesa-symbols.txt'),
+      symbols_check_args,
+    ],
+    suite : ['gallium'],
+  )
+endif
+
 pkg.generate(
   name : 'osmesa',
   description : 'Mesa Off-screen Rendering Library',