Build bombs and I should know why but fergit

It's been a couple of years at least since I checked out and build
tn5250 ... Can anyone tell me why my build bombs as shown below?
I know it's in curses,I know I've seen this before, but I fergit,
and my hed hertz ...

-- gcc -g -O2 -o .libs/scs2ascii scs2ascii.o  ./.libs/lib5250.so 
-L/usr/local/lib /usr/local/lib/libglib-2.0.so -lssl -lcrypto -lnsl -lsocket 
-lncurses -R/usr/local/lib
Undefined                       first referenced
 symbol                             in file
w32addch                            ./.libs/lib5250.so
getmaxx                             ./.libs/lib5250.so
getmaxy                             ./.libs/lib5250.so
inet_aton                           ./.libs/lib5250.so
initscr32                           ./.libs/lib5250.so
w32attrset                          ./.libs/lib5250.so
ld: fatal: Symbol referencing errors. No output written to .libs/scs2ascii
collect2: ld returned 1 exit status
make[2]: *** [scs2ascii] Error 1
make[2]: Leaving directory `/usr/local/src/tn5250/tn5250/src'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/usr/local/src/tn5250/tn5250/src'
make: *** [all-recursive] Error 1