main.o: In function `main':
main.cpp:(.text+0x14e): undefined reference to `DuomRez::DuomRez()'
main.cpp:(.text+0x1a1): undefined reference to `Skaic::Skaic()'
DuomRez.o: In function `__static_initialization_and_destruction_0(int, int)':
DuomRez.cpp:(.text+0x36d): undefined reference to `Skaic::Skaic()'
collect2: ld returned 1 exit status
make: *** [main] Error 1