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if (FOO=FOO; unset FOO) >/dev/null 2>&1; then
as_unset=unset
else
as_unset=false
fi
# FIXME-someday: The following is begging to be factored, ...
$as_unset VERSION_CONTROL SIMPLE_BACKUP_SUFFIX
$as_unset BLOCK_SIZE DU_BLOCK_SIZE DF_BLOCK_SIZE LS_BLOCK_SIZE
if test "${VERSION_CONTROL+set}" = set; then
echo "$0: the VERSION_CONTROL envvar is set --" \
' unset it and rerun this test' >&2
envvar_check_fail=1
fi
if test "${SIMPLE_BACKUP_SUFFIX+set}" = set; then
echo "$0: the SIMPLE_BACKUP_SUFFIX envvar is set --" \
' unset it and rerun this test' >&2
>&2
envvar_check_fail=1
fi
if test "${BLOCK_SIZE+set}" = set; then
echo "$0: the BLOCK_SIZE envvar is set --" \
' unset it and rerun this test' >&2
>&2
envvar_check_fail=1
fi
if test "${DU_BLOCK_SIZE+set}" = set; then
echo "$0: the DU_BLOCK_SIZE envvar is set --" \
' unset it and rerun this test' >&2
>&2
envvar_check_fail=1
fi
if test "${DF_BLOCK_SIZE+set}" = set; then
echo "$0: the DF_BLOCK_SIZE envvar is set --" \
' unset it and rerun this test' >&2
>&2
envvar_check_fail=1
fi
if test "${LS_BLOCK_SIZE+set}" = set; then
echo "$0: the LS_BLOCK_SIZE envvar is set --" \
' unset it and rerun this test' >&2
>&2
envvar_check_fail=1
fi
test "$envvar_check_fail" = 1 && exit 1
|
