AIX xlc16 options langlvl=c99vla / langlvl=noredefmac is not supported

Hello, when building jdk/jdk on AIX (using the current default xlc16) I get a ton of warnings : warning: 1540-5200 The option "langlvl=c99vla" is not supported. warning: 1540-5200 The option "langlvl=noredefmac" is not supported. The 2 options seem to be gone with the current xlc16 / xlclang++ . I would like to remove them - any objections ? (removing them might be bad for older xlc versions but I think we probably cannot compile with older versions any more ) . Best regards, Matthias