diff --git a/lib/make_zip_err_str.sh b/lib/make_zip_err_str.sh
deleted file mode 100644
index 8d98f23..0000000
--- a/lib/make_zip_err_str.sh
+++ /dev/null
@@ -1,79 +0,0 @@
-#!/bin/sh
-
-#  make_zip_err_str.sh: create zip_err_str.c from zip.h
-#  Copyright (C) 1999-2014 Dieter Baron and Thomas Klausner
-#
-#  This file is part of libzip, a library to manipulate ZIP archives.
-#  The authors can be contacted at <libzip@nih.at>
-#
-#  Redistribution and use in source and binary forms, with or without
-#  modification, are permitted provided that the following conditions
-#  are met:
-#  1. Redistributions of source code must retain the above copyright
-#     notice, this list of conditions and the following disclaimer.
-#  2. Redistributions in binary form must reproduce the above copyright
-#     notice, this list of conditions and the following disclaimer in
-#     the documentation and/or other materials provided with the
-#     distribution.
-#  3. The names of the authors may not be used to endorse or promote
-#     products derived from this software without specific prior
-#     written permission.
-# 
-#  THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS
-#  OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-#  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-#  ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
-#  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-#  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
-#  GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-#  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
-#  IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
-#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
-#  IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-if [ "$#" -ne 2 ]
-then
-    echo "Usage: $0 in_file out_file" >&2
-    echo "       e.g. $0 zip.h zip_err_str.c" >&2
-    exit 1
-fi
-
-if [ "$1" = "$2" ]
-then
-    echo "$0: error: output file = input file" >&2
-    exit 1
-fi
-
-cat <<EOF >> "$2.$$" || exit 1
-/*
-   This file was generated automatically by $0
-   from $1; make changes there.
- */
-
-#include "zipint.h"
-
-const char * const _zip_err_str[] = {
-EOF
-
-sed -n  '/^#define ZIP_ER_/ s/.*\/\* . \([^*]*\) \*\//    "\1",/p' "$1" \
-    >> "$2.$$" || exit 1
-
-cat <<EOF >> "$2.$$" || exit 1
-};
-
-const int _zip_nerr_str = sizeof(_zip_err_str)/sizeof(_zip_err_str[0]);
-
-#define N ZIP_ET_NONE
-#define S ZIP_ET_SYS
-#define Z ZIP_ET_ZLIB
-
-const int _zip_err_type[] = {
-EOF
-
-sed -n  '/^#define ZIP_ER_/ s/.*\/\* \(.\) \([^*]*\) \*\//    \1,/p' "$1" \
-    >> "$2.$$" || exit 1
-
-echo '};' >> "$2.$$" || exit 1
-
-mv "$2.$$" "$2" || exit 1