Someone

tore@fortran:~/tdu$ make
make[1]: Entering directory `/home/tore/tdu/lib'
cc -O -Dlinux -Di386 -Wall -DUSE_ZC  -I. -I..   -c -o zc.o zc.c
In file included from zc.c:31:
../conf.h:213: error: conflicting types for `getopt'
/usr/include/getopt.h:154: error: previous declaration of `getopt'
make[1]: *** [zc.o] Error 1
make[1]: Leaving directory `/home/tore/tdu/lib'
make[1]: Entering directory `/home/tore/tdu/src'
cc -O -Dlinux -Di386 -Wall -DUSE_ZC  -I. -I.. -I../lib   -c -o port.o port.c
In file included from port.c:31:
../conf.h:213: error: conflicting types for `getopt'
/usr/include/getopt.h:154: error: previous declaration of `getopt'
port.c:46: error: conflicting types for `sys_errlist'
/usr/include/bits/sys_errlist.h:28: error: previous declaration of `sys_errlist'
make[1]: *** [port.o] Error 1
make[1]: Leaving directory `/home/tore/tdu/src'
make[1]: Entering directory `/home/tore/tdu/doc'
make[1]: Nothing to be done for `all'.
make[1]: Leaving directory `/home/tore/tdu/doc'