From: Anna Wilcox <AWilcox@Wilcox-Tech.com>
Date: Fri, 20 Mar 2026 08:43:04 +0000 (-0500)
Subject: examples: nft-rule-add: Fix compile on musl libc
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=HEAD;p=thirdparty%2Flibnftnl.git

examples: nft-rule-add: Fix compile on musl libc

Without `_GNU_SOURCE`, the `dest` field on `tcphdr` is not present:

nft-rule-add.c: In function 'setup_rule':
nft-rule-add.c:108:21: error: 'struct tcphdr' has no member named 'dest'

Signed-off-by: Anna Wilcox <AWilcox@Wilcox-Tech.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
---

diff --git a/examples/nft-rule-add.c b/examples/nft-rule-add.c
index 937b4366..486544ae 100644
--- a/examples/nft-rule-add.c
+++ b/examples/nft-rule-add.c
@@ -5,6 +5,7 @@
  * This software has been sponsored by Sophos Astaro <http://www.sophos.com>
  */
 
+#define _GNU_SOURCE	/* for tcphdr.dest */
 #include <stdlib.h>
 #include <time.h>
 #include <string.h>