suppress warnings about easch <applet>_main() having
no preceding prototype
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;