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#!/bin/sh
target="$1"
loc="$2"
test "$target" || exit 1
test "$loc" || loc=.
test -x "$loc/usage" || exit 1
test "$SED" || SED=sed
test "$DD" || DD=dd
true | od -v -t x1 >/dev/null
if test $? != 0; then
echo 'od tool is not installed or cannot accept "-v -t x1" options'
exit 1
fi
exec >"$target.$$"
echo '#define UNPACKED_USAGE "" \'
"$loc/usage" | od -v -t x1 \
| $SED -e 's/^[^ ]*//' \
-e 's/ //g' \
-e '/^$/d' \
-e 's/\(..\)/\\x\1/g' \
-e 's/^/"/' \
-e 's/$/" \\/'
echo ''
echo '#define PACKED_USAGE \'
## Breaks on big-endian systems!
## # Extra effort to avoid using "od -t x1": -t is not available
## # in non-CONFIG_DESKTOPed busybox od
##
## "$loc/usage" | bzip2 -1 | od -v -x \
## | $SED -e 's/^[^ ]*//' \
## -e 's/ //g' \
## -e '/^$/d' \
## -e 's/\(..\)\(..\)/0x\2,0x\1,/g'
## -e 's/$/ \\/'
"$loc/usage" | bzip2 -1 | $DD bs=2 skip=1 2>/dev/null | od -v -t x1 \
| $SED -e 's/^[^ ]*//' \
-e 's/ //g' \
-e '/^$/d' \
-e 's/\(..\)/0x\1,/g' \
-e 's/$/ \\/'
echo ''
mv -- "$target.$$" "$target"
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