This program written for multiple threads experiences a segfault very early on; the stripped down code is as follows (the segfault occurs on gtk_init()): #include <pthread.h> #include <glib.h> #include <gtk/gtk.h> int main(int argc, char* argv[]) { if (!g_thread_supported()) { g_thread_init(NULL); gdk_threads_init(); //printf("Entered.\n"); } gtk_init(&argc, &argv); return 0; } The segfault is confusing, since the program's barely done anything yet. Running with GDB outputs this: Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 1088074176 (LWP 15889)] 0x40381d14 in pthread_mutex_lock () from /lib/tls/libpthread.so.0 Compiled with Eclipse's CDT plugin using the following: g++ -I/usr/local/include/gtk-2.0 -I/usr/local/lib/gtk-2.0/include -I/usr/include/cairo -I/usr/include/freetype2 -I/usr/X11R6/include -I/usr/include/libpng12 -I/opt/gnome/include/atk-1.0 -I/opt/gnome/include/pango-1.0 -I/opt/gnome/include/glib-2.0 -I/opt/gnome/lib/glib-2.0/include -O0 -g3 -Wall -c -fmessage-length=0 -lavcodec -lgthread -lpthread -lavformat -lgtk-x11-2.0 -lgdk-x11-2.0 -latk-1.0 -lgdk_pixbuf.2.0 -lpangocairo-1.0 -lpango-1.0 -lcairo -lgobject-2.0 -lgmodule-2.0 -ldl -lglib-2.0 -lfreetype -lfontconfig -lXrender -lX11 -lXext -lpng12 -lz -lglitz -lm -L/usr/local/lib -L/usr/X11R6/lib -L/opt/gnome/lib Thanks for any input. -- View this message in context: http://www.nabble.com/segfault-on-gtk_init-t1452085.html#a3924153 Sent from the Gtk+ - General forum at Nabble.com. _______________________________________________ gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list