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#!/bin/sh
#
# remove all the #if's from a source file
#
# $dotat: things/unifdefall.sh,v 1.10 2002/09/24 19:52:11 fanf2 Exp $
# $FreeBSD: src/usr.bin/unifdef/unifdefall.sh,v 1.2 2002/09/24 19:50:03 fanf Exp $
set -e
basename=`basename $0`
tmp=`mktemp -d -t $basename` || exit 2
unifdef -s "$@" | sort | uniq > $tmp/ctrl
cpp -dM "$@" | sort |
sed -Ee 's/^#define[ ]+(.*[^ ])[ ]*$/\1/' > $tmp/hashdefs
sed -Ee 's/^([A-Za-z0-9_]+).*$/\1/' $tmp/hashdefs > $tmp/alldef
comm -23 $tmp/ctrl $tmp/alldef > $tmp/undef
comm -12 $tmp/ctrl $tmp/alldef > $tmp/def
echo unifdef -k \\ > $tmp/cmd
sed -Ee 's/^(.*)$/-U\1 \\/' $tmp/undef >> $tmp/cmd
while read sym
do sed -Ee '/^('"$sym"')([(][^)]*[)])?([ ]+(.*))?$/!d;s//-D\1=\4/' $tmp/hashdefs
done < $tmp/def |
sed -Ee 's/\\/\\\\/g;s/"/\\"/g;s/^/"/;s/$/" \\/' >> $tmp/cmd
echo '"$@"' >> $tmp/cmd
sh $tmp/cmd "$@"
rm -r $tmp
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