[vala/0.40] glib-2.0: Cast strcmp to GCompareFunc

[Rico Tzschichholz <ricotz src gnome org>]

commit e91ef92357baf247ef50befa8f21ba8b2f663e65
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Sun Nov 25 16:26:22 2018 +0100

    glib-2.0: Cast strcmp to GCompareFunc
    
    This will silence some incompatible pointer type warnings.

 vapi/glib-2.0.vapi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/vapi/glib-2.0.vapi b/vapi/glib-2.0.vapi
index 4e488fc03..dca9615cf 100644
--- a/vapi/glib-2.0.vapi
+++ b/vapi/glib-2.0.vapi
@@ -4623,7 +4623,7 @@ namespace GLib {
        public delegate int CompareDataFunc<G> (G a, G b);
 
        [Version (since = "2.16")]
-       [CCode (cname = "g_strcmp0")]
+       [CCode (cname = "((GCompareFunc) g_strcmp0)")]
        public static GLib.CompareFunc<string> strcmp;
 
        public delegate G CopyFunc<G> (G src);