Hi Frank/Waldeck I am trying to build GPC for the MSYS platform. After configuring, "make" is fine in building gcc and gpc. But if I run "make bootstrap" instead, when getting to the parse.y/parse.c stage of gpc, I get errors about attempting to use "poisoned malloc" and "poisoned realloc". I am not sure what any of this is about, or how to solve this problem. Please advise. Thanks. Best regards, The Chief -------- Prof. Abimbola A. Olowofoyeku (The African Chief) web: http://www.bigfoot.com/~african_chief/