diff -r d1766c2273d1 -r 5c67476c7342 scripts/functions
--- a/scripts/functions	Tue Oct 30 00:36:20 2012 +0000
+++ b/scripts/functions	Tue Oct 30 00:22:25 2012 +0000
@@ -46,7 +46,7 @@
             old_trap="$(trap -p ERR)"
             trap -- ERR
             (
-                exec >&6
+                exec >&6 2>&7 <&8
                 printf "\r         \n\nCurrent command"
                 if [ -n "${cur_cmd}" ]; then
                     printf ":\n  %s\n" "${cur_cmd}"
@@ -131,7 +131,8 @@
 
 # Log policy:
 #  - first of all, save stdout so we can see the live logs: fd #6
-exec 6>&1
+# (also save stdin and stderr for use by CT_DEBUG_INTERACTIVE)
+exec 6>&1 7>&2 8<&0
 #  - then point stdout to the log file
 tmp_log_file="${CT_TOP_DIR}/build.log"
 rm -f "${tmp_log_file}"