posting for others who may need, hopfuly the searchable mail list works in the future commenting out the define complex macro allowed me to compile on sco 5.0.5 using udk compiler on sco, without the c++ stuff. but scos udk solution breaks almost every thing else i compile on sco 5.0.5 when u install there compatability stuff they introduce 2 sets of libraries one for sco one for unixware compatability, the compatability librarsy the give you DO NOT replace all the shared libraies on the system, notably /lib/prot.so or anything under /lib has no compatable libs installed under /udk/usr/lib, the udk compilers both c and c++ use the new libraries by default soon as you need a libray that is not available under /udk/usr/lib your screwed, there is a skunkware version of gcc but it passes a non existant option -b to the sco assember, and even the sco assebler uses the new udk libs, removing c++ on sco does not fix the problem as sco says it should, since there is no binutils ported to sco skunkware with gas and other tools this realy sucks. not sure if i can install my old sdk on sco 5.0.5 which was licsensed on sco 5.0.2, not sure if sdk and udk can co exist, and how do u manage the libs dirs that are searched autmaticly, or add the -Xo option that sco says will allow stuff to compile with less strict error checking - winblows model stuff compiles and links may - maynot work or unknown problems to test scos udk on sco openserver 5.0.5 breaks all open source code, or at least most of what i want to use. advice to future people that want to use sco open server, screw the udk, udk compatability for those wishing to use the backwards compatability from unixware to sco openserver expect conflicts, and unsuportted libraries, links static and pray. hope like hell caldara slaps some sense into sco fast, or at least port binutils, gcc then maybe u can just license the header files for 100 bucks instead of buing crapy compiler technoweldgy for 500 bucks when all you want is the header files, and -- My opinions are my own and not that of my employer even if I am self employed Tech Net, Inc. --FREE THE MACHINES-- 651.224.2223 627 Palace Ave. #2 [EMAIL PROTECTED] [EMAIL PROTECTED] St. Paul, MN 55102-3517 www.tnss.com wanted : adsl/cable modem with static ip at reasonable price accept-txt: us-ascii,html,pdf accept-dat: ascii-delimited,sql insert statments