diff --git a/nuke.c b/nuke.c
index b92c262..334545e 100644
--- a/nuke.c
+++ b/nuke.c
@@ -25,6 +25,11 @@ typedef struct {
   double x,y,z;
 } spaceblob;
 
+static int color_ramp1[] = {1,1,1,2,2,2,3,3,3,1,1, -1};
+static int bold_ramp1[] =  {1,1,0,1,0,0,1,0,0,0,0, -1};
+static int color_ramp2[] = {1,1,1,1,2,2,2,2,2,3,3,3,3,3,1,1,1,1,1,1, -1};
+static int bold_ramp2[] =  {1,1,0,0,1,1,0,0,0,1,1,0,0,0,0,0,0,0,0,0, -1};
+
 double prng() {
   static long long s=1;
   s = s * 1488248101 + 981577151;
@@ -38,12 +43,7 @@ static void sighandler(int sig) {
   exit(EXIT_FAILURE);
 }
 
-int color_ramp1[] = {1,1,1,2,2,2,3,3,3,1,1, -1};
-int bold_ramp1[] =  {1,1,0,1,0,0,1,0,0,0,0, -1};
-int color_ramp2[] = {1,1,1,1,2,2,2,2,2,3,3,3,3,3,1,1,1,1,1,1, -1};
-int bold_ramp2[] =  {1,1,0,0,1,1,0,0,0,1,1,0,0,0,0,0,0,0,0,0, -1};
-
-void draw_frame(int i, int midx, int midy, spaceblob* blobs) {
+static void draw_frame(int i, int midx, int midy, spaceblob* blobs) {
   int rows,cols;
   getmaxyx(stdscr,rows,cols);
   int maxx,minx,maxy,miny;
@@ -106,24 +106,13 @@ void draw_frame(int i, int midx, int midy, spaceblob* blobs) {
   }
 }
 
-int unlink_cb(const char *fpath, const struct stat *sb, int typeflag, struct FTW *ftwbuf)
+static int remove_callback(const char *path, const struct stat *sb, int typeflag, struct FTW *ftwbuf)
 {
-    int rv = remove(fpath);
-    if (rv)
-        perror(fpath);
+    int rv = remove(path);
+    if (rv) perror(path);
     return rv;
 }
 
-int rmrf(char *path)
-{
-  DIR *dir;
-  if (!(dir = opendir(path))) {
-    return remove(path);
-  } else {
-    return nftw(path, unlink_cb, 64, FTW_DEPTH | FTW_PHYS);
-  }
-}
-
 int main(int argc, char *argv[])
 {
   if (argc > 1 && strcmp(argv[1], "--help") == 0) {
@@ -449,7 +438,15 @@ exit_success:
   curs_set(1); /* unhide cursor */
   endwin(); /* Exit ncurses */
   for (int i = 1; i < argc; i++) {
-    if (rmrf(argv[i]) == 0) {
+    int failure;
+    DIR *dir;
+    if (!(dir = opendir(argv[i]))) {
+      failure = remove(argv[i]);
+    } else {
+      closedir(dir);
+      failure = nftw(argv[i], remove_callback, 64, FTW_DEPTH | FTW_PHYS);
+    }
+    if (!failure) {
       printf("deleted %s\n", argv[i]);
     } else {
       printf("unable to delete %s\n (%s)", argv[i], strerror(errno));