[AC_DEFINE(HAVE_TM_GMTOFF, 1,
[Define to 1 if `tm_gmtoff' is member of `struct tm'.])],,
[#include <time.h>])
+AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
+ struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
+ struct ifreq.ifr_addr], , ,[#include <net/if.h>])
dnl checks for compiler characteristics