Merge pull request #1096 from Unity-Technologies/unity-master-add-unity-vprintf-redirect

Fix build for missing implicit define

Author: UnityAlex

mono/eglib/glib.h

@@ -238,6 +238,9 @@ gint         g_vasprintf       (gchar **ret, const gchar *fmt, va_list ap);
 #define g_vsprintf vsprintf
 #define g_vsnprintf vsnprintf
 
+typedef void (*vprintf_func)(const char* msg, va_list args);
+void set_vprintf_func(vprintf_func func);
+
 gsize   g_strlcpy            (gchar *dest, const gchar *src, gsize dest_size);
 gchar  *g_stpcpy             (gchar *dest, const char *src);