add note about glibc bug

p4raw-id: //depot/perl@3740

diff --git a/t/pragma/warn/pp_hot b/t/pragma/warn/pp_hot
index 60490bc..f586b25 100644 (file)
--- a/t/pragma/warn/pp_hot
+++ b/t/pragma/warn/pp_hot
@@ -54,6 +54,12 @@ print getc(FOO);
 read(FOO,$_,1);
 no warning 'io' ;
 print STDIN "anc";
+###############################################################
+#                            N O T E                          #
+# This test is known to fail on Linux systems with glibc.     #
+# The glibc development team is aware of the problem, and has #
+# determined a fix for the next release of that library.      #
+###############################################################
 EXPECT
 Filehandle main::STDIN opened only for input at - line 3.
 Filehandle main::STDOUT opened only for output at - line 4.