Export only the public symbols
Export only the public symbols

All the symbols starting with an underscore or with something that
is not "json" are to considered private, and thus are not global
to the shared object.

robtaylor/json-glib-gvariant,Distrotech/json-glib,ebassi/json-glib,robtaylor/json-glib-gvariant,brauliobo/json-glib,GNOME/json-glib,ebassi/json-glib,brauliobo/json-glib,ebassi/json-glib,oerdnj/json-glib,frida/json-glib,GNOME/json-glib,oerdnj/json-glib,oerdnj/json-glib,Distrotech/json-glib,oerdnj/json-glib,brauliobo/json-glib,Distrotech/json-glib,frida/json-glib