lib/ffi-gdal/major_object.rb in ffi-gdal-0.0.3 vs lib/ffi-gdal/major_object.rb in ffi-gdal-0.0.4

@@ -5,9 +5,14 @@
   module MajorObject
     include FFI::GDAL
 
     # @return [Array<String>]
     def metadata_domain_list
+      unless defined? FFI::GDAL::GDALGetMetadataDomainList
+        warn "GDALGetMetadataDomainList is't defined. GDAL::MajorObject#metadata_domain_list disabled."
+        return []
+      end
+
       # I don't quite get it, but if #GDALGetMetadataDomainList isn't called
       # twice, the last domain in the list sometimes doesn't get read.
       GDALGetMetadataDomainList(c_pointer)
       list_pointer = GDALGetMetadataDomainList(c_pointer)
       return [] if list_pointer.null?