1 files changed, 8 insertions, 0 deletions
diff --git a/lib/rubygems/path_support.rb b/lib/rubygems/path_support.rb
index 7195b322ef..5a16d7a6df 100644
--- a/lib/rubygems/path_support.rb
+++ b/lib/rubygems/path_support.rb
@@ -13,6 +13,10 @@ class Gem::PathSupport
   attr_reader :path
 
   ##
+  # Directory with spec cache
+  attr_reader :spec_cache_dir # :nodoc:
+
+  ##
   #
   # Constructor. Takes a single argument which is to be treated like a
   # hashtable, or defaults to ENV, the system environment.
@@ -28,6 +32,10 @@ class Gem::PathSupport
     end
 
     self.path = env["GEM_PATH"] || ENV["GEM_PATH"]
+
+    @spec_cache_dir =
+      env["GEM_SPEC_CACHE"] || ENV["GEM_SPEC_CACHE"] ||
+        Gem.default_spec_cache_dir
   end
 
   private