Hello, Maybe that is a known bug but I encountered a strange problem and don't know what happens. I reduced the example to these three silly files: --------------------- program tester; uses tester1; begin ImpSgnList.Init(8); end. ---------------------- unit tester1; interface uses tester2; var ImpSgnList:MList; implementation end. ---------------------- unit tester2; interface type MList = object constructor Init(ALimit: Integer); end; implementation constructor MList.Init(aLimit: Integer); begin end; end. ---------------------- The result of execution is as follows: tester.dpr: In main program: tester.dpr:5: Internal compiler error in `call_method', at objects.c:137 Please submit a full bug report to the GPC mailing list <gpc@gnu.de>. See <URL:http://home.pages.de/~GNU-Pascal/todo.html> for details. I use the following compiler version: Reading specs from /usr/local/lib/gcc-lib/sparc-sun-solaris2.8/2.95.3/specs gpc version 20010623, based on 2.95.3 20010315 (release) BTW: the same is with my another GPC version: Reading specs from /usr/local/lib/gcc-lib/i386-pc-solaris2.8/2.95.2/specs gpc version 20010121, based on 2.95.2 19991024 (release) I hope there is an explanation of this behavior, or if this is a new bug, there will be a way to correct it. Regards, Adam Naumowicz -------------------------------------- WWW: http://math.uwb.edu.pl/~adamn/ --------------------------------------