Compiler warnings "set_label" incompatible pointer

[Daniel Dieterle <daniel dieterle ws>]

Hi,

if i compile following code i get some warnings:


void on_button_run_clicked( GtkWidget * widget, GtkEntry *entry,
gpointer user_data )
{       
        /* Run changes to Pause */
        gtk_button_set_label (widget, ( const gchar *) "Pause");
        /* calles every 100 ms function draw_satellite */
        satellite_is_running = gtk_timeout_add( 100, draw_satellite, (gpointer)
NULL );

An the warnings:

handlers.c: In function 'on_button_run_clicked':
handlers.c:133: warning: passing argument 1 of 'gtk_button_set_label'
from incompatible pointer type
handlers.c:137: warning: passing argument 2 of 'gtk_timeout_add' from
incompatible pointer type

I compile with:
gcc -c handlers.c -std=c99 `pkg-config --cflags gtk+-2.0 libglade-2.0`


I can't imaging why the compiler complains himself?
You know why? Tell me! ;-)

Daniel.