Re: complie error

[Allin Cottrell <cottrell wfu edu>]

On Thu, 17 Nov 2005, yeajchao wrote:

>   I encountered a simple problem while compile a
> simple program
>    the program and the complie infomation as follow
> /**************************************************/
> #include<gtk/gtk.h>
> int main (int argc, char **argv)
> {
>  GtkWidget *window;
>
>  /* init threads */
>  g_thread_init(NULL);
>  gdk_threads_init();
>
>  /* init gtk */
>  gtk_init(&argc, &argv);
>
>  window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
>  gtk_widget_show(window);
>
>  gdk_threads_enter();
>  gtk_main();
>  gdk_threads_leave();
>
>  return 0;
> }
> /*************************************************/
> and the complier told  me that
> /*-----------------------------------------------*/
> /tmp/cc1s1xqZ.o(.text+0x16): In function `main':
> : undefined reference to `g_thread_init'
> collect2: ld returned 1 exit status
> /*-----------------------------------------------*/

You need to link to the libraries needed by gthread:

cc `pkg-config --cflags gtk+-2.0` myfile.c \
`pkg-config --libs gtk+-2.0` \
`pkg-config --libs gthread`

Allin Cottrell