generation=`expr $generation + 1`
+if test -n "$SOURCE_DATE_EPOCH" -a "$EXTERNAL_BUILD_TIMESTAMP" = '' ; then
+ EXTERNAL_BUILD_TIMESTAMP=$SOURCE_DATE_EPOCH
+fi
if test "$EXTERNAL_BUILD_TIMESTAMP" = ''; then
creation=`LC_ALL=C date | \
awk '{if (NF == 6) \