c++ -I. -O -I../libpcap-0.4 -Ilinux-include -c Func.cc
Func.cc: In function `void do_fmt (const char *&, Val *, ODesc *)':
Func.cc:244: `localtime' undeclared (first use this function)
Func.cc:244: (Each undeclared identifier is reported only once for each
function it appears in.)
Func.cc:244: `strftime' undeclared (first use this function)
Try adding an include of <time.h> at the beginning of Func.cc and see
if that resolves the problem.