Index: lldb/trunk/tools/debugserver/source/MacOSX/CMakeLists.txt
===================================================================
--- lldb/trunk/tools/debugserver/source/MacOSX/CMakeLists.txt
+++ lldb/trunk/tools/debugserver/source/MacOSX/CMakeLists.txt
@@ -13,6 +13,7 @@
   )
 add_custom_command(OUTPUT ${generated_mach_interfaces}
   COMMAND mig ${CMAKE_CURRENT_SOURCE_DIR}/dbgnub-mig.defs
+  DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/dbgnub-mig.defs
   )
 
 set(DEBUGSERVER_VERS_GENERATED_FILE ${CMAKE_CURRENT_BINARY_DIR}/debugserver_vers.c)
@@ -21,7 +22,10 @@
 add_custom_command(OUTPUT ${DEBUGSERVER_VERS_GENERATED_FILE}
   COMMAND ${LLDB_SOURCE_DIR}/scripts/generate-vers.pl
           ${LLDB_SOURCE_DIR}/lldb.xcodeproj/project.pbxproj debugserver
-          > ${DEBUGSERVER_VERS_GENERATED_FILE})
+          > ${DEBUGSERVER_VERS_GENERATED_FILE}
+  DEPENDS ${LLDB_SOURCE_DIR}/scripts/generate-vers.pl
+          ${LLDB_SOURCE_DIR}/lldb.xcodeproj/project.pbxproj
+  )
 
 set(DEBUGSERVER_USED_LIBS
   lldbDebugserverCommon