suppress warnings about easch <applet>_main() having
no preceding prototype
diff --git a/modutils/insmod.c b/modutils/insmod.c
index edbdfab..57092f7 100644
--- a/modutils/insmod.c
+++ b/modutils/insmod.c
@@ -3945,6 +3945,7 @@
 void print_load_map(struct obj_file *f);
 #endif
 
+int insmod_main( int argc, char **argv);
 int insmod_main( int argc, char **argv)
 {
 	char *opt_o, *arg1;
@@ -4258,6 +4259,7 @@
 	}
 }
 
+int insmod_ng_main(int argc, char **argv);
 int insmod_ng_main(int argc, char **argv)
 {
 	long ret;
diff --git a/modutils/lsmod.c b/modutils/lsmod.c
index af16f2c..31549b9 100644
--- a/modutils/lsmod.c
+++ b/modutils/lsmod.c
@@ -74,6 +74,7 @@
 	NEW_MOD_INITIALIZING = 64
 };
 
+int lsmod_main(int argc, char **argv);
 int lsmod_main(int argc, char **argv)
 {
 	struct module_info info;
@@ -139,6 +140,7 @@
 
 #else /* CONFIG_FEATURE_QUERY_MODULE_INTERFACE */
 
+int lsmod_main(int argc, char **argv);
 int lsmod_main(int argc, char **argv)
 {
 	FILE *file = xfopen("/proc/modules", "r");
diff --git a/modutils/modprobe.c b/modutils/modprobe.c
index 94f7b22..d5b5dd4 100644
--- a/modutils/modprobe.c
+++ b/modutils/modprobe.c
@@ -861,6 +861,7 @@
 	return rc;
 }
 
+int modprobe_main(int argc, char** argv);
 int modprobe_main(int argc, char** argv)
 {
 	int rc = EXIT_SUCCESS;
diff --git a/modutils/rmmod.c b/modutils/rmmod.c
index 22e864d..0a67b89 100644
--- a/modutils/rmmod.c
+++ b/modutils/rmmod.c
@@ -38,6 +38,7 @@
 int query_module(const char *name, int which, void *buf,
 			size_t bufsize, size_t *ret);
 
+int rmmod_main(int argc, char **argv);
 int rmmod_main(int argc, char **argv)
 {
 	int n, ret = EXIT_SUCCESS;