chaks@Yoper ~/NewYIS $ make
g++  -o NewYIS     -L/opt/qt4/lib -lQtGui -lQtCore -lpthread
/usr/lib/gcc/i686-pc-linux-gnu/4.0.2/../../../crt1.o: In function `_start':
: undefined reference to `main'
collect2: ld returned 1 exit status
make: *** [NewYIS] Error 1