diff --exclude .svn --exclude .git --exclude CVS --exclude .hg -ur tcl8.6-8.6.2+dfsg/generic/tclIO.h ../tcl8.6-8.6.2+dfsg/generic/tclIO.h
--- tcl8.6-8.6.2+dfsg/generic/tclIO.h	2014-07-31 21:17:23.000000000 +0200
+++ ../tcl8.6-8.6.2+dfsg/generic/tclIO.h	2015-01-18 21:39:23.758270391 +0100
@@ -64,7 +64,7 @@
  * The following defines the *default* buffer size for channels.
  */
 
-#define CHANNELBUFFER_DEFAULT_SIZE	(1024 * 4)
+#define CHANNELBUFFER_DEFAULT_SIZE	(1024)
 
 /*
  * The following structure describes the information saved from a call to