1 files changed, 4 insertions, 1 deletions

diff --git a/meta/recipes-core/busybox/busybox.inc b/meta/recipes-core/busybox/busybox.inc
index 49165d7f51..956cccac61 100644
--- a/meta/recipes-core/busybox/busybox.inc
+++ b/meta/recipes-core/busybox/busybox.inc
@@ -128,7 +128,9 @@ do_prepare_config () {
                 ${S}/.config.oe-tmp > ${S}/.config
         fi
         sed -i 's/CONFIG_IFUPDOWN_UDHCPC_CMD_OPTIONS="-R -n"/CONFIG_IFUPDOWN_UDHCPC_CMD_OPTIONS="-R -b"/' ${S}/.config
-        sed -i 's|${DEBUG_PREFIX_MAP}||g' ${S}/.config
+        if [ -n "${DEBUG_PREFIX_MAP}" ]; then
+                sed -i 's|${DEBUG_PREFIX_MAP}||g' ${S}/.config
+        fi
 }
 
 # returns all the elements from the src uri that are .cfg files
@@ -142,6 +144,7 @@ def find_cfgs(d):
     return sources_list
 
 do_configure () {
+        set -x
         do_prepare_config
         merge_config.sh -m .config ${@" ".join(find_cfgs(d))}
         cml1_do_configure