marking functions as obsolete/deprecated

[Fredrik Thulin]

Hi

Is there any way I can mark (exported) functions in a module as obsolete 
or deprecated, and have the compiler issue a warning about it?

OTP seems to use static bits in otp_internal.erl to do this, but that 
options isn't exactly available to me. There is the module attribute 
tag 'deprecated', but it seems to only be used by 'xref' and not the 
compiler/linter.

Thanks in advance

/Fredrik