Bug#892285: /usr/bin/fpcmake: fpcmake should find units in Debian without fiddling with FPCDIR

[Graham Inggs]

Control: tags -1 + fixed-upstream

This was fixed upstream for arm64 and m68k in r38866 [1], and fixed for 
m68k in salsa [2] now.


[1] 
https://svn.freepascal.org/cgi-bin/viewvc.cgi/trunk/utils/fpcm/fpcmmain.pp?r1=38866&r2=38865&pathrev=38866
[2] 
https://salsa.debian.org/pascal-team/fpc/commit/7327829338a931bbb77a630a12abcae7d6bc57e7