amunits: syscallified DataTypes

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@28638 3ad0048d-3df7-0310-abae-a5850022a9f2
Amiga/AROS/MorphOS: some more path fixed in FV, userscreen for all 3 platforms

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@28639 3ad0048d-3df7-0310-abae-a5850022a9f2