# For the dns plugin
AC_CHECK_HEADERS(arpa/nameser.h arpa/nameser_compat.h)
-AC_CHECK_HEADERS(net/if_arp.h)
+AC_CHECK_HEADERS(net/if_arp.h, [], [],
+[#if HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+])
AC_CHECK_HEADERS(net/if_ppp.h)
-AC_CHECK_HEADERS(netinet/if_ether.h)
+AC_CHECK_HEADERS(netinet/if_ether.h, [], [],
+[#if HAVE_STDINT_H
+# include <stdint.h>
+#endif
+#if HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#if HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+#if HAVE_NET_IF_H
+# include <net/if.h>
+#endif
+#if HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
+])
dnl Checking for libraries
AC_CHECK_LIB(m, ext)