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--- a/src/lib/mkMake
+++ b/src/lib/mkMake
@@ -51,6 +51,7 @@
 ${depth}/utils/conftree.cpp \
 ${depth}/utils/copyfile.cpp \
 ${depth}/utils/debuglog.cpp \
+${depth}/utils/ecrontab.cpp \
 ${depth}/utils/execmd.cpp \
 ${depth}/utils/fstreewalk.cpp \
 ${depth}/utils/idfile.cpp \