Thanks a lot for you answer. Yes, this happens with every inline function. If I could write a simple, self-contained complete program that shows the problem, I would gladly do it (I think this would take me more than a year...). Anyhow, I am not asking you to debug our code, but whether or not anyone has ever encountered this problem: "code that segfaults for every inline function, and no segfault when the definition is put in the .cpp files instead of the headers." . If, no, then well... too bad for me :) thanks again. -- View this message in context: http://gcc.1065356.n5.nabble.com/segfault-when-functions-are-defined-in-headers-or-inlined-tp1167297p1167315.html Sent from the gcc - Help mailing list archive at Nabble.com.