+ new unit providing access to additional OS/2 API functions from DOSCALL1.DLL available in newer OS/2 versions (WSeB/MCP/eCS) - currently additional 64-bit file handling not used directly in RTL; mostly file locking related now; dynamically loaded and simulated under older OS/2 versions to allow executables using them to run on older OS/2 versions

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@28890 3ad0048d-3df7-0310-abae-a5850022a9f2