xt: fix build when libxtables is not installed

If libxtables is not even installed, build fails due to to missing
include file.

ifdef LIBXTABLES guard fixes the first error, but results in two
followup failures:
1. missing IFNAMSIZ definition
2. dereference of unknown struct.

Signed-off-by: Florian Westphal <fw@strlen.de>

1 files changed, 5 insertions, 0 deletions

diff --git a/src/xt.c b/src/xt.c
index ab7f5017..08560976 100644
--- a/src/xt.c
+++ b/src/xt.c
@@ -10,7 +10,10 @@
 #include <stdlib.h>
 #include <time.h>
 #include <string.h>
+#include <net/if.h>
+#ifdef HAVE_LIBXTABLES
 #include <xtables.h>
+#endif
 #include <getopt.h>
 #include <ctype.h>	/* for isspace */
 #include <statement.h>
@@ -76,6 +79,7 @@ void xt_stmt_xlate(const struct stmt *stmt, struct output_ctx *octx)
 
 void xt_stmt_release(const struct stmt *stmt)
 {
+#ifdef HAVE_LIBXTABLES
 	switch (stmt->xt.type) {
 	case NFT_XT_MATCH:
 		if (!stmt->xt.match)
@@ -95,6 +99,7 @@ void xt_stmt_release(const struct stmt *stmt)
 	default:
 		break;
 	}
+#endif
 	xfree(stmt->xt.entry);
 }