summaryrefslogtreecommitdiff
path: root/lib
diff options
context:
space:
mode:
Diffstat (limited to 'lib')
-rw-r--r--lib/thread.rb4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/thread.rb b/lib/thread.rb
index c4bb141ce7..7df6a140f5 100644
--- a/lib/thread.rb
+++ b/lib/thread.rb
@@ -1,4 +1,8 @@
#
+# NOTE:
+# This file is overwritten by ext/thread/lib/thread.rb unless ruby
+# is configured with --disable-fastthread.
+#
# thread.rb - thread support classes
# $Date$
# by Yukihiro Matsumoto <matz@netlab.co.jp>