[zenity/jjardon/fix_warning] Fix some compilations warnings

[Javier Jardón Cabezas <jjardon src gnome org>]

commit c0c1ca9b7aa9ec0faf3ecd00fc7baceeb6c30860
Author: Javier Jardón <jjardon gnome org>
Date:   Fri Dec 18 08:24:25 2020 +0000

    Fix some compilations warnings

 src/msg.c  | 4 ++--
 src/util.c | 9 +++++----
 2 files changed, 7 insertions(+), 6 deletions(-)
---
diff --git a/src/msg.c b/src/msg.c
index ca14d867..496fe185 100644
--- a/src/msg.c
+++ b/src/msg.c
@@ -206,8 +206,8 @@ zenity_msg (ZenityData *data, ZenityMsgData *msg_data) {
                // however, 60 would increase the distance between the icon and the
                // text,
                // decreasing to 10 fix it.
-               gtk_label_set_width_chars (text, 10);
-               gtk_label_set_max_width_chars (text, 10);
+               gtk_label_set_width_chars (GTK_LABEL (text), 10);
+               gtk_label_set_max_width_chars (GTK_LABEL (text), 10);
        }
 
        if (data->modal)
diff --git a/src/util.c b/src/util.c
index 0c101866..2887fd96 100644
--- a/src/util.c
+++ b/src/util.c
@@ -153,7 +153,7 @@ zenity_util_fill_file_buffer (GtkTextBuffer *buffer, const gchar *filename) {
                gtk_text_buffer_insert (buffer, &iter, buf, leftover - buf);
 
                remaining = (buf + remaining + count) - leftover;
-               g_memmove (buf, leftover, remaining);
+               memmove (buf, leftover, remaining);
 
                if (remaining > 6 || count < to_read)
                        break;
@@ -326,11 +326,12 @@ transient_get_xterm (void) {
                Window wid = strtoul (wid_str, &wid_str_end, 10);
                if (*wid_str != '\0' && *wid_str_end == '\0' && wid != 0) {
                        XWindowAttributes attrs;
-                       gdk_error_trap_push ();
+                       GdkDisplay *display;
+                       display = gdk_display_get_default ();
+                       gdk_x11_display_error_trap_push (display);
                        ret = XGetWindowAttributes (
                                GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), wid, &attrs);
-                       gdk_flush ();
-                       if (gdk_error_trap_pop () != 0 || ret == 0) {
+                       if (gdk_x11_display_error_trap_pop (display) != 0 || ret == 0) {
                                return None;
                        }
                        return wid;