diff --git a/depend b/depend
deleted file mode 100755
index 2b2de5e..0000000
--- a/depend
+++ /dev/null
@@ -1,30 +0,0 @@
-#!/bin/sh
-
-# Compute the dependencies (direct and transitive) of an object
-# This is used to collect all objects needed to link a program.
-
-# Bail out when .d files are missing
-test -f "${1%.o}.d" || exit 1
-
-# Check whether $1 contains substring $2
-contains(){ test "${1#*$2}" != "$1"; }
-
-# Walk the dependency graph (consisting of the set of all .d files)
-# and output the visited nodes (objects).
-walk_dag(){
-  while read -r line; do
-    # skip the first line (file own name)
-    contains "$line" ': ' && continue
-    # only look up object files
-    contains "$line" '.o ' || continue
-    line="${line% \\}"
-    contains "$visited" "$line" && continue
-    visited="$line:$visited"
-    printf '%s ' "$line"
-    # whether the node is a leaf
-    test "$(wc -l < "${line%.o}.d")" -gt 1 && walk_dag < "${line%.o}.d"
-  done
-}
-
-printf '%s ' "$1"  # the object itself
-walk_dag < "${1%.o}.d"