On Sat, May 15, 2010 22:48, "Vinzent Höfler" wrote: > Bihar Anwar <bihar_an...@rocketmail.com> > >> I've tried googling and searching FPC mailing list for information about >> this one, but I found nothing. >> I just found in http://www.delorie.com/djgpp/v2faq/faq3_1.html that >> DJGPP requires MS-DOS version 3.1 or later. >> >> Would someone here tell me exactly about lowest MS-DOS version supported >> by FPC? > > 3.1, I'm pretty sure. AFAIK it doesn't use any specific DOS 5.x+ calls > except perhaps for checking for existence of DOS 7.x (Win95) LFN > functions. And DOS 4.x was close to non-existent anyway.
In general, FPC compiled programs (and the compiler itself with some limitations) should hopefully work correctly under DOS 3.1+ as specified for DJGPP. Some functionality would not work properly without having at least MS DOS 3.3+ (increasing of default count of file handles used in unit system, checking of country information used in SysUtils). However, I don't think that anyone tried it with anything older than MS-DOS 5.0 recently. If you really need to use an even older version (why?) and if you encounter difficulties with FPC compiled programs running under such an old version, let me know, I may try to have a look at it (I'm not completely sure if I still have access to anything older than MS-DOS 4.01 though). Note that requirements are different for building RTL and packages for the GO32v2 target (rather than just using compiled units from a release or a snapshot). In particular, support for long file names (as available in MS DOS v7.x or also provided by some TSR utilities) is necessary for using FPC makefiles to build FPC from provided source files. Tomas _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
