Turn introspection scanner warnings into errors

We want to catch errors in our annotations or our API.

diff --git a/gtk/meson.build b/gtk/meson.build
index 2bb41b03e7797d6df9f344909f235bc1117ac2ea..9ebab3c6a2aec3b453c9233adf09cae5a017e0d6 100644 (file)
--- a/gtk/meson.build
+++ b/gtk/meson.build
@@ -1135,6 +1135,7 @@ if build_gir
   gir_args = [
     '-DGTK_COMPILATION',
     '--quiet',
+    '--warn-error',
   ]
 
   # We may build some of the dependencies as sub-projects; this means