5 files changed, 9 insertions, 9 deletions
diff --git a/extensions/libipt_SET.c b/extensions/libipt_SET.c
index 378b77e4..62d959fe 100644
--- a/extensions/libipt_SET.c
+++ b/extensions/libipt_SET.c
@@ -34,9 +34,9 @@ static void SET_help(void)
 }
 
 static const struct option SET_opts[] = {
-	{"add-set",   1, 0, '1'},
-	{"del-set",   1, 0, '2'},
-	{0}
+	{"add-set",   1, NULL, '1'},
+	{"del-set",   1, NULL, '2'},
+	{ }
 };
 
 /* Initialize the target. */
diff --git a/extensions/libipt_set.c b/extensions/libipt_set.c
index dcb74df9..759bca33 100644
--- a/extensions/libipt_set.c
+++ b/extensions/libipt_set.c
@@ -32,8 +32,8 @@ static void set_help(void)
 }
 
 static const struct option set_opts[] = {
-	{"set", 1, 0, '1'},
-	{0}
+	{"set", 1, NULL, '1'},
+	{ }
 };
 
 /* Initialize the match. */
diff --git a/extensions/libxt_CONNSECMARK.c b/extensions/libxt_CONNSECMARK.c
index 579ea4c3..2c425cb8 100644
--- a/extensions/libxt_CONNSECMARK.c
+++ b/extensions/libxt_CONNSECMARK.c
@@ -23,8 +23,8 @@ static void CONNSECMARK_help(void)
 }
 
 static const struct option CONNSECMARK_opts[] = {
-	{ "save", 0, 0, '1' },
-	{ "restore", 0, 0, '2' },
+	{ "save", 0, NULL, '1' },
+	{ "restore", 0, NULL, '2' },
 	{ .name = NULL }
 };
 
diff --git a/extensions/libxt_SECMARK.c b/extensions/libxt_SECMARK.c
index feee0e43..7d3dbfa2 100644
--- a/extensions/libxt_SECMARK.c
+++ b/extensions/libxt_SECMARK.c
@@ -22,7 +22,7 @@ static void SECMARK_help(void)
 }
 
 static const struct option SECMARK_opts[] = {
-	{ "selctx", 1, 0, '1' },
+	{ "selctx", 1, NULL, '1' },
 	{ .name = NULL }
 };
 
diff --git a/extensions/libxt_quota.c b/extensions/libxt_quota.c
index a642aa49..8e178fe7 100644
--- a/extensions/libxt_quota.c
+++ b/extensions/libxt_quota.c
@@ -77,7 +77,7 @@ quota_parse(int c, char **argv, int invert, unsigned int *flags,
 	return 1;
 }
 
-struct xtables_match quota_match = {
+static struct xtables_match quota_match = {
 	.family		= AF_UNSPEC,
 	.name		= "quota",
 	.version	= XTABLES_VERSION,