#!/bin/sh

trap 'rm -f confdefs.opt_*.h confdefs.*_macros.h confdefs.*.keyword' 1 2 3 9 19



num_of_opt=$#
while [ $# -gt 0 ]
do
  cc_opt_name=`echo $1 | sed 's/[^0-9A-Za-z_]/_/g'`
  if test x = x"${cc_opt_name}"
  then
    cc_opt_name="NONE"
  fi
  eval ${cc_opt_name}=\"$1\"
  cc_opt_list="${cc_opt_list} ${cc_opt_name}"  
  shift
done




for cc_opt_name in ${cc_opt_list}
do
  get_opt_command="echo $"${cc_opt_name}
  eval cc_opt=`$get_opt_command`

  eval $get_opt_command | tr ' -+=.,' '\n\n\n\n\n\n' | sort -f | uniq > confdefs.opt_${cc_opt_name}.keyword
  echo | ${CC} ${CPPFLAGS} ${CFLAGS} ${cc_opt} -E -dD - | fgrep '#define' | sort -f | uniq > confdefs.opt_${cc_opt_name}.h
done





cat confdefs.opt_*.keyword | sort -f | uniq -c \
	| sed -n "/^ *1 */s/^ *1 *//p" > confdefs.unique.keyword

cat confdefs.opt_*.h | awk '{printf("#define %s \n", $2)}' | sort -f | uniq -c \
	| sed -n "/^ *${num_of_opt} *#/s/^ *${num_of_opt} *#/#/p" > confdefs.common_macros.h
cat confdefs.opt_*.h | sort -f | uniq -c \
	| sed -n "/^ *${num_of_opt} *#/s/^ *${num_of_opt} *#/#/p" > confdefs.same_macros.h
cat confdefs.opt_*.h | awk '{printf("#define %s \n", $2)}' \
	| fgrep -vf confdefs.common_macros.h | sort -f | uniq -c \
	| sed -n "/^ *1 *#/s/^ *1 *#/#/p" > confdefs.uniqbool_macros.h
cat confdefs.opt_*.h | fgrep -vf confdefs.uniqbool_macros.h | sort -f | uniq -c \
	| sed -n "/^ *1 *#/s/^ *1 *#/#/p" > confdefs.uniqvalue_macros.h





for cc_opt_name in ${cc_opt_list}
do
  get_opt_command="echo $"${cc_opt_name}
  eval cc_opt=`$get_opt_command`
  echo "checking cpp macro specific to ${cc_opt}..." | tr '\n' ' '

  opt_bool_macros=`fgrep -f confdefs.uniqbool_macros.h < confdefs.opt_${cc_opt_name}.h | awk '{printf(" %s", $2)}'`
  opt_value_macros=`fgrep -f confdefs.uniqvalue_macros.h < confdefs.opt_${cc_opt_name}.h | sed 's/#define \([^ ]*\) /\1=/g' | tr '\n' ' '`

  if test `echo ${opt_bool_macros} | wc -w` -gt 0
  then
    if test `echo ${opt_bool_macros} | tr ' ' '\n' | fgrep -f confdefs.unique.keyword | fgrep -f confdefs.opt_${cc_opt_name}.keyword | wc -l` -gt 0
    then
      opt_bool_macros=`echo ${opt_bool_macros} | tr ' ' '\n' | fgrep -f confdefs.unique.keyword | fgrep -f confdefs.opt_${cc_opt_name}.keyword | tail -1`
    elif test `echo ${opt_bool_macros} | tr ' ' '\n' | fgrep -vf confdefs.unique.keyword | fgrep -if confdefs.opt_${cc_opt_name}.keyword | wc -l` -gt 0
    then
      opt_bool_macros=`echo ${opt_bool_macros} | tr ' ' '\n' | fgrep -f confdefs.unique.keyword | fgrep -if confdefs.opt_${cc_opt_name}.keyword | tail -1`
    fi
    opt_bool_macros=`echo ${opt_bool_macros} | tr ' ' '\n' | tail -1`
    echo ${opt_bool_macros}
  elif test `echo ${opt_value_macros} | wc -w` -gt 0
  then
    if test `echo ${opt_value_macros} | tr ' ' '\n' | fgrep -vf confdefs.unique.keyword | fgrep -f confdefs.opt_${cc_opt_name}.keyword | wc -l` -gt 0
    then
      opt_value_macros=`echo ${opt_value_macros} | tr ' ' '\n' | fgrep -f confdefs.unique.keyword | fgrep -f confdefs.opt_${cc_opt_name}.keyword | tail -1`
    elif test `echo ${opt_value_macros} | tr ' ' '\n' | fgrep -vf confdefs.unique.keyword | fgrep -if confdefs.opt_${cc_opt_name}.keyword | wc -l` -gt 0
    then
      opt_value_macros=`echo ${opt_value_macros} | tr ' ' '\n' | fgrep -f confdefs.unique.keyword | fgrep -if confdefs.opt_${cc_opt_name}.keyword | tail -1`
    fi
    opt_value_macros=`echo ${opt_value_macros} | tr ' ' '\n' | tail -1`
    echo ${opt_value_macros}
  else
    echo "not found"
  fi
done

rm -f confdefs.opt_*.h confdefs.*_macros.h confdefs.*.keyword