--- /dev/null
+#!/bin/sh -e
+
+sed -i "s:extern int errno;:#include <errno.h>:" error.h
+sed -i -e 's/gcc/${CC}/g' find-systype.sh
+
+printf '${CC} ${CFLAGS} -s -lcrypt' > conf-cc
+printf '${CC} ${CFLAGS} -s -lcrypt' > conf-ld
+
+make
+install -Dm755 checkpassword "$1/usr/bin/checkpassword"