appletlib: fix set-but-unused warning

When you build with FEATURE_INSTALLER disabled, you get a build
warning like so:

libbb/appletlib.c: In function 'busybox_main':
libbb/appletlib.c:691:7: warning: variable 'use_symbolic_links' set but
                                  not used [-Wunused-but-set-variable]
   int use_symbolic_links;
       ^

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

1 files changed, 5 insertions, 1 deletions

diff --git a/libbb/appletlib.c b/libbb/appletlib.c
index 8f3a8a10b..f7c416ece 100644
--- a/libbb/appletlib.c
+++ b/libbb/appletlib.c
@@ -606,7 +606,11 @@ static void install_links(const char *busybox, int use_symbolic_links,
         }
 }
 # else
-#  define install_links(x,y,z) ((void)0)
+static void install_links(const char *busybox UNUSED_PARAM,
+                int use_symbolic_links UNUSED_PARAM,
+                char *custom_install_dir UNUSED_PARAM)
+{
+}
 # endif
 
 /* If we were called as "busybox..." */