/tmp/ccGN5NTA.o: In function `case4()':
maintest.cpp:(.text+0xc82): undefined reference to `add(List<int> const&, List<int> const&)'
maintest.cpp:(.text+0xcd9): undefined reference to `add(List<int> const&, List<int> const&)'
/tmp/ccGN5NTA.o: In function `case10()':
maintest.cpp:(.text+0x1a62): undefined reference to `add(List<int> const&, List<int> const&)'
maintest.cpp:(.text+0x1ada): undefined reference to `add(List<int> const&, List<int> const&)'
maintest.cpp:(.text+0x1b2c): undefined reference to `add(List<int> const&, List<int> const&)'
/tmp/ccGN5NTA.o:maintest.cpp:(.text+0x1b8e): more undefined references to `add(List<int> const&, List<int> const&)' follow
collect2: error: ld returned 1 exit status
/in/compile/Makefile:10: recipe for target 'mylist' failed
make: *** [mylist] Error 1