Index: lddcheck
--- lddcheck.orig
+++ lddcheck
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 if [ -z "$1" ]; then
 	exit 0
@@ -15,13 +15,13 @@ case "$input" in #((
 		fi
 		real=$(dirname "$input")"/.libs/$dlname"
 		# ldd loads all dependencies, which nm would not do.
-		if ldd -r "$real" 2>/dev/null | c++filt | grep "undefined symbol"; then
+		if nm -u "$real" 2>/dev/null | c++filt | grep "undefined symbol"; then
 			rm "$output"
 			exit 1
 		fi
 		;;
 	*)
-		if "${libtool}" --mode=execute ldd -r "$input" 2>/dev/null | c++filt | \
+		if "${libtool}" --mode=execute nm -u "$input" 2>/dev/null | c++filt | \
 		   grep "undefined symbol"; then
 			rm "$output"
 			exit 1