File u_gcc15.patch of Package libxpp

Index: libxpp-v0.3.1/include/xpp/types.hxx
===================================================================
--- libxpp-v0.3.1.orig/include/xpp/types.hxx
+++ libxpp-v0.3.1/include/xpp/types.hxx
@@ -1,5 +1,7 @@
 #pragma once
 
+#include <cstdint>
+
 // C++
 #include <memory>
 #include <string_view>