#!/bin/sh

# $Id: checkIncludes,v 1.5 1995/08/24 09:11:35 svein Exp $
# Author: Svein Bøe, 1994

usage () {
  echo "usage: $0 [-h] [<files>]"
  echo "  <files>  : C-files and header-files."
  echo "             Default: *.c and *.h-files in cwd."
  echo "  -h       : Print this text."
  echo "  -v       : Verbose."
  echo ""
  echo "Purpose:"
  echo "Check files for include-directives which should be changed to"
  echo "include XITE-determined header-files. Produces files with names of"
  echo "the form <headerFileName>.<sourceFileName>.grep, indicating existence"
  echo "of headers which should be changed. Make the changes with the script"
  echo "changeIncludes."

  exit 1
}

prog=`basename $0`; files=""; help=0; verbose=0
while [ $# -gt 0 ]; do
  case $1 in
    -h|-help)  help=1; usage;;
    -v)        verbose=1; shift;;
    *)         if [ -z "$files" ]; then
	         files=$1
	       else
		 files="$files $1"
	       fi
	       shift;;
  esac
done

includes="<fcntl.h> <sys/fcntl.h> <sys/file.h> <sys/io.h> <io.h> <vfork.h> \
          <malloc.h> <memory.h> <sys/stat.h> <stdarg.h> <varargs.h> \
          <stdio.h> <string.h> <strings.h> <time.h> <sys/types.h> <unistd.h> \
	  <limits.h>"

if [ -z "$files" ]; then
  files=`ls *.c *.h 2>/dev/null`
fi

if [ -z "$files" ]; then
  echo "$prog error: No such files." 1>&2
  usage
fi

cnt=0
for f in $files; do
  for i in $includes; do
    grep "# *include \{1,\}.*$i" "$f" > /dev/null 2>&1 && \
	grep "# *include \{1,\}.*$i" "$f" > "$i.$f.grep" && cnt=`expr $cnt + 1`
  done
done

if [ "$cnt" -gt 0 -a "$verbose" -ne 0 ]; then

  echo "Number of obsolete include directives found: $cnt."
  echo "Use the script changeIncludes."
elif [ "$verbose" -ne 0 ]; then
  echo "No changes necessary."
fi
