configure: net/route.h needs sys/socket.h on FreeBSD

FreeBSD fixes
- net/route.h needs sys/socket.h (struct sockaddr)
- netinet/ip_mroute.h needs sys/types.h (u_long et consortes)

Fixes part of smcroute issue #5

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>

configure

@@ -3564,11 +3564,16 @@ $as_echo "#define STDC_HEADERS 1" >>confdefs.h
 fi
 
 for ac_header in arpa/inet.h fcntl.h netinet/in.h stdlib.h string.h \
- sys/ioctl.h sys/socket.h syslog.h unistd.h \
+ sys/ioctl.h sys/socket.h sys/types.h syslog.h unistd.h \
  net/route.h sys/param.h ifaddrs.h
 do :
  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
-ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
+ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+
+"
 if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
 #define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
@@ -3639,6 +3644,12 @@ done
 for ac_header in netinet/ip_mroute.h
 do :
  ac_fn_c_check_header_compile "$LINENO" "netinet/ip_mroute.h" "ac_cv_header_netinet_ip_mroute_h" "
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
 #ifdef HAVE_NETINET_IN_H
 #include <netinet/in.h>
 #endif

configure.ac

@@ -16,8 +16,13 @@ AC_GNU_SOURCE
 # Checks for header files.
 AC_HEADER_STDC
 AC_CHECK_HEADERS([arpa/inet.h fcntl.h netinet/in.h stdlib.h string.h \
- sys/ioctl.h sys/socket.h syslog.h unistd.h \
- net/route.h sys/param.h ifaddrs.h])
+ sys/ioctl.h sys/socket.h sys/types.h syslog.h unistd.h \
+ net/route.h sys/param.h ifaddrs.h], [], [],
+[
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+])
 
 AC_CHECK_HEADERS([linux/mroute.h], [], [], 
 [
@@ -45,6 +50,12 @@ AC_CHECK_HEADERS([linux/sockios.h])
 
 AC_CHECK_HEADERS([netinet/ip_mroute.h], [], [],
 [
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
 #ifdef HAVE_NETINET_IN_H
 #include <netinet/in.h>
 #endif