[Bug ada/98754] gnatmake no longer recognizes -P option

[emr-gnu at hev dot psu.edu]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98754

--- Comment #2 from Eric Reischer <emr-gnu at hev dot psu.edu> ---
In that case, this is not a RESOLVED WONTFIX -- this is still open.  The
documentation and output of "gnatmake --help" need to be updated to reflect the
fact this is no longer a valid command line option.