2 files changed, 6 insertions, 2 deletions

diff --git a/lisp/erc/ChangeLog b/lisp/erc/ChangeLog
index 1b54fb6a48d..28ac7d38b96 100644
--- a/lisp/erc/ChangeLog
+++ b/lisp/erc/ChangeLog
@@ -1,3 +1,8 @@
+2015-01-22  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Don't downcase system diagnostics' first letters
+        * erc-dcc.el (erc-dcc-server): Ignore case while comparing diagnostics.
+
 2014-11-23  Michael Albinus  <michael.albinus@gmx.de>
 
         * erc-desktop-notifications.el (erc-notifications-bus):
diff --git a/lisp/erc/erc-dcc.el b/lisp/erc/erc-dcc.el
index 9d52c3b7c09..182f1e05921 100644
--- a/lisp/erc/erc-dcc.el
+++ b/lisp/erc/erc-dcc.el
@@ -379,7 +379,7 @@ created subprocess, or nil."
                   (set-process-filter-multibyte process nil)))))
         (file-error
          (unless (and (string= "Cannot bind server socket" (nth 1 err))
-                      (string= "address already in use" (nth 2 err)))
+                      (string= "address already in use" (downcase (nth 2 err))))
            (signal (car err) (cdr err)))
          (setq port (1+ port))
          (unless (< port upper)
@@ -1264,4 +1264,3 @@ other client."
 ;; Local Variables:
 ;; indent-tabs-mode: nil
 ;; End:
-