AT_CHECK([pspp -O format=csv sys-file.sps], [0], [dnl
warning: `sys-file.sav' near offset 0x138: Long variable mapping from LONGVARI to invalid variable name `_Invalid'.
AT_CHECK([pspp -O format=csv sys-file.sps], [0], [dnl
warning: `sys-file.sav' near offset 0x138: Long variable mapping from LONGVARI to invalid variable name `_Invalid'.