Compilation Error, Debian/12 about ipt-ratelimit

[manchelsi]

Fix builds on iptables version 1.8.9 or newer
Ever since iptables commit ef108943f69a6e20533d58823740d3f0534ea8ec,
the _init macro has become guarded by XTABLES_INTERNAL, thus breaking
this extension.

Explicitly specify the constructor attribute on the initialization
function, which works on all versions.

diff --git a/libxt_ratelimit.c b/libxt_ratelimit.c                                                                                           
index d1a03d7..f3ecd6d 100644                                                                                                                
--- a/libxt_ratelimit.c                                                                                                                      
+++ b/libxt_ratelimit.c                                                                                                                      
@@ -153,7 +153,7 @@ static struct xtables_match ratelimit_mt_reg[] = {                                                                       
        },
 };

-void _init(void)                                                                                                                            
+static void __attribute__((constructor)) _init(void)                                                                                        
 {
        xtables_register_matches(ratelimit_mt_reg, ARRAY_SIZE(ratelimit_mt_reg));
 }

[manchelsi]

#27