#!/bin/sh

# Check the set of headers with conformtest expectations for a given standard.

# Copyright (C) 2014-2018 Free Software Foundation, Inc.

# This file is part of the GNU C Library.

# The GNU C Library is free software; you can redistribute it and/or

# modify it under the terms of the GNU Lesser General Public

# License as published by the Free Software Foundation; either

# version 2.1 of the License, or (at your option) any later version.

# The GNU C Library is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

# Lesser General Public License for more details.

# You should have received a copy of the GNU Lesser General Public

# License along with the GNU C Library; if not, see

# <http://www.gnu.org/licenses/>.

set -e

std=$1

CC=$2

expected_list=$3

all_data_files=$4

new_list=

for f in $all_data_files; do

  h=${f#data/}

  h=${h%-data}

  exp=$($CC -D$std -x c -E $f | sed -e '/^#/d' -e '/^[ 	]*$/d')

  if [ "$exp" ]; then

    new_list="$new_list $h"

  fi

done

echo "Headers with expectations for $std: $new_list"

echo "Expected list: $expected_list"

rc=0

for h in $expected_list; do

  case " $new_list " in

    (*" $h "*)

      ;;

    (*)

      echo "Missing expectations for $h."

      rc=1

      ;;

  esac

done

for h in $new_list; do

  case " $expected_list " in

    (*" $h "*)

      ;;

    (*)

      echo "Spurious expectations for $h."

      rc=1

      ;;

  esac

done

exit $rc