The attached example, produces the following highly informative error message when compiled: gpcbug20100502.p:13: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://www.gnu-pascal.de/todo.html> for instructions. I'm running GPC 20070904, based on gcc-4.1.2 under 64-bit Linux (Slamd64 12.2 to be exact). The error is also triggered on my 32-bit Linux (Debian 5.0.4) system running the same compiler, based on gcc-4.1.3. The code (attached) is as follows: unit example; interface type CandName(MaxCandName:integer) = string(MaxCandName); CandStatus = (Elected, Eliminated, Neither); CandRecord = record Name : CandName; RawVote : integer; Allocation : integer; Status : CandStatus; end; CandArray(N:integer) = array[1..N] of CandRecord; end. If I change the declaration on the array to "^CandRecord", the example compiles normally. The types also compile normally inside of a program (instead of a unit). If there's a more recent version of the GPC codebase that I should be using instead, then please let me know. --------------------------| John L. Ries | Salford Systems | Phone: (619)543-8880 x107 | or (435)867-8885 | --------------------------|