Kerberos 1.3.1 on HPUX installs with gcc

[simonst@wellsfargo.com]

I compiled Kerberos 1.3.1 on HPUX 11.00, using gcc 3.0.4.  Module
src/appl/bsd/compat_recv.c failed to compile because it couldn't find the
"#include <sys/select.h>", so I added an #ifdef for HAVE_SYS_SELECT_H to it:

#ifdef HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif

After that, the "make" & "make check" completed successfully.