gentoo-overlay/app-backup/zbackup/files/zbackup-9999-tartool.patch

--- a/CMakeLists.txt	2017-02-24 09:22:39.360392521 +0200
+++ b/CMakeLists.txt	2017-02-24 09:23:13.642390978 +0200
@@ -51,4 +51,8 @@
   ${LIBLZO_LIBRARIES}
 )
 
+if (BUILD_TARTOOL)
+	add_subdirectory(tools/tartool)
+endif (BUILD_TARTOOL)
+
 install( TARGETS zbackup DESTINATION bin )