What was the command line you used to link your program? Lyle -----Original Message----- From: gcc-help-owner@xxxxxxxxxxx [mailto:gcc-help-owner@xxxxxxxxxxx]On Behalf Of Assinovsky, Lev Sent: Monday, December 15, 2003 5:53 AM To: gcc-help@xxxxxxxxxxx Subject: Can't profile g++ program Hello all! To my surprise I can't use option -pg when linking with -lpthreads. Program crashing in libthreads (not in libpthreads) during initialization: