#!/bin/sh

# Copyright 2016-2018 Free Software Foundation, Inc.
# This script is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE.

# ck-clz_tab can be run from the tools directory
dir=$(pwd)
[ -d src ] || [ "$(basename "$dir")" != tools ] || cd ..

size1=$(sed -n 's/^extern .* __clz_tab\[\([0-9]\+\)\].*/\1/p' \
        src/mpfr-longlong.h)

size2=$(sed -n 's/^.* __clz_tab\[\([0-9]\+\)\].*/\1/p' \
        src/mp_clz_tab.c)

if [ -n "$size1" ] && [ -n "$size2" ] && [ "$size1" != "$size2" ]; then
  cat >&2 <<EOF
The __clz_tab sizes do not match.
  mpfr-longlong.h  $size1
  mp_clz_tab.c     $size2
EOF
  exit 1
fi