Compile warning (newbie)

["William D. Tallman" <wtallman olypen com>]

The following function yields the warning, compiled with '-Wall':

    dataentry.c: In function `edit_changed':
    dataentry.c:21: warning:
    assignment discards qualifiers from pointer target type

The code snippet:

void edit_changed (GtkWidget *widget, gpointer *data)
{
    gchar *str;

>>  str = gtk_entry_get_text (GTK_ENTRY (widget)); <<
    g_print ("Entry changed to %s\n", str);
}

IIRC, this compiled without warning in gtk+-1.2, but not in gtk+-2.4.

What is it that being discarded here, and/or what is the correct way to
assign gtk_entry_get_text(etc.)?

Thanks,

Bill Tallman