1 files changed, 8 insertions, 0 deletions
diff --git a/tool/fake.rb b/tool/fake.rb
index 91dfb041c4..195ae0a5a0 100644
--- a/tool/fake.rb
+++ b/tool/fake.rb
@@ -9,6 +9,14 @@ class File
   end
 end
 
+[[libpathenv, "."], [preloadenv, libruby_so]].each do |env, path|
+  env or next
+  e = ENV[env] or next
+  e = e.split(File::PATH_SEPARATOR)
+  e.delete(File.expand_path(path, builddir)) or next
+  ENV[env] = (e.join(File::PATH_SEPARATOR) unless e.empty?)
+end
+
 static = !!(defined?($static) && $static)
 $:.unshift(builddir)
 posthook = proc do