gcc 0-01.c /home/green/tmp/ccAUFKBG.o: In function `main': 0-01.c:(.text+0x12): undefined reference to `initscr' 0-01.c:(.text+0x17): undefined reference to `start_color' 0-01.c:(.text+0x3b): undefined reference to `newwin' 0-01.c:(.text+0x51): undefined reference to `immedok' 0-01.c:(.text+0x64): undefined reference to `scrollok' 0-01.c:(.text+0x77): undefined reference to `nodelay' 0-01.c:(.text+0x93): undefined reference to `init_pair' 0-01.c:(.text+0xa6): undefined reference to `wbkgd' 0-01.c:(.text+0xc9): undefined reference to `wprintw' 0-01.c:(.text+0xe4): undefined reference to `wgetch' 0-01.c:(.text+0xee): undefined reference to `endwin' collect2: ld returned 1 exit status