commit 6ce497caac85f53a54e359ca57ad0f9dc379021f
Author: Sam James <sam@gentoo.org>
Date:   Thu Nov 24 07:57:37 2022 +0000

    config: Fix -Wimplicit-function-declaration
    
    read_config_yy.c: In function ‘yyparse’:
    read_config_yy.c:1765:16: warning: implicit declaration of function ‘yylex’ [-Wimplicit-function-declaration]
     1765 |       yychar = yylex ();
          |                ^~~~~
    read_config_yy.c:1765:16: warning: nested extern declaration of ‘yylex’ [-Wnested-externs]
    read_config_yy.y:120:17: warning: implicit declaration of function ‘dlog’ [-Wimplicit-function-declaration]
      120 |                 dlog(LOG_ERR, "LogFile path is longer than %u characters",
          |                 ^~~~
    read_config_yy.y:120:17: warning: nested extern declaration of ‘dlog’ [-Wnested-externs]
    read_config_yy.y:240:14: warning: implicit declaration of function ‘inet_aton’; did you mean ‘in6_pton’? [-Wimplicit-function-declaration]
      240 |         if (!inet_aton($2, &conf.channel[conf.channel_num].u.mcast.in)) {
          |              ^~~~~~~~~
          |              in6_pton
    
    Closes: https://bugzilla.netfilter.org/show_bug.cgi?id=1637
    Signed-off-by: Sam James <sam@gentoo.org>
    Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/src/read_config_lex.l b/src/read_config_lex.l
index b0d9e61e0e4b92ef..5633da604be6a132 100644
--- a/src/read_config_lex.l
+++ b/src/read_config_lex.l
@@ -21,6 +21,7 @@
 
 #include <string.h>
 
+#include "log.h"
 #include "conntrackd.h"
 #include "read_config_yy.h"
 %}
@@ -169,7 +170,7 @@ notrack		[N|n][O|o][T|t][R|r][A|a][C|c][K|k]
 %%
 
 int
-yywrap()
+yywrap(void)
 {
 	return 1;
 }
diff --git a/src/read_config_yy.y b/src/read_config_yy.y
index 31109c4de042ccac..e5c57fd934890cbe 100644
--- a/src/read_config_yy.y
+++ b/src/read_config_yy.y
@@ -31,14 +31,25 @@
 #include "cidr.h"
 #include "helper.h"
 #include "stack.h"
+#include "log.h"
+
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
 #include <sched.h>
 #include <dlfcn.h>
+
 #include <libnetfilter_conntrack/libnetfilter_conntrack.h>
 #include <libnetfilter_conntrack/libnetfilter_conntrack_tcp.h>
 
 extern char *yytext;
 extern int   yylineno;
 
+int yylex (void);
+int yyerror (char *msg);
+void yyrestart (FILE *input_file);
+
 struct ct_conf conf;
 
 static void __kernel_filter_start(void);