1 files changed, 9 insertions, 1 deletions
diff --git a/lib/rubygems/specification_policy.rb b/lib/rubygems/specification_policy.rb
index c3c496db9b..b7fb2cfa1a 100644
--- a/lib/rubygems/specification_policy.rb
+++ b/lib/rubygems/specification_policy.rb
@@ -75,6 +75,8 @@ class Gem::SpecificationPolicy
 
     validate_dependencies
 
+    validate_removed_attributes
+
     if @warnings > 0
       if strict
         error "specification has warnings"
@@ -408,6 +410,12 @@ http://spdx.org/licenses or '#{Gem::Licenses::NONSTANDARD}' for a nonstandard li
     warning "#{executable_path} is missing #! line"
   end
 
+  def validate_removed_attributes # :nodoc:
+    @specification.removed_method_calls.each do |attr|
+      warning("#{attr} is deprecated and ignored. Please remove this from your gemspec to ensure that your gem continues to build in the future.")
+    end
+  end
+
   def warning(statement) # :nodoc:
     @warnings += 1
 
@@ -421,7 +429,7 @@ http://spdx.org/licenses or '#{Gem::Licenses::NONSTANDARD}' for a nonstandard li
   end
 
   def help_text # :nodoc:
-    "See http://guides.rubygems.org/specification-reference/ for help"
+    "See https://guides.rubygems.org/specification-reference/ for help"
   end
 
 end