diff --git a/devel/boost-libs/files/patch-boost_type__traits_is__signed.hpp b/devel/boost-libs/files/patch-boost_type__traits_is__signed.hpp
new file mode 100644
index 000000000000..0ffb4d40bb46
--- /dev/null
+++ b/devel/boost-libs/files/patch-boost_type__traits_is__signed.hpp
@@ -0,0 +1,48 @@
+--- boost/type_traits/is_signed.hpp.orig	2025-08-06 18:49:14 UTC
++++ boost/type_traits/is_signed.hpp
+@@ -13,6 +13,7 @@
+ #include <boost/type_traits/is_integral.hpp>
+ #include <boost/type_traits/remove_cv.hpp>
+ #include <boost/type_traits/is_enum.hpp>
++#include <boost/core/underlying_type.hpp>
+ #include <climits>
+ 
+ namespace boost {
+@@ -25,6 +26,18 @@ namespace detail{
+ 
+ namespace detail{
+ 
++template <class no_cv_t, bool is_enum>
++struct is_signed_values_underlying_type
++{
++   typedef no_cv_t underlying_type;
++};
++
++template <class no_cv_t>
++struct is_signed_values_underlying_type<no_cv_t, true>
++{
++   typedef typename ::boost::underlying_type<no_cv_t>::type underlying_type;
++};
++
+ template <class T>
+ struct is_signed_values
+ {
+@@ -34,14 +47,15 @@ struct is_signed_values
+    // the correct answer.
+    //
+    typedef typename remove_cv<T>::type no_cv_t;
+-   static const no_cv_t minus_one = (static_cast<no_cv_t>(-1));
+-   static const no_cv_t zero = (static_cast<no_cv_t>(0));
++   typedef typename is_signed_values_underlying_type<no_cv_t, ::boost::is_enum<T>::value>::underlying_type underlying_type;
++
++   static const underlying_type minus_one = (static_cast<underlying_type>(-1));
++   static const underlying_type zero = (static_cast<underlying_type>(0));
+ };
+ 
+ template <class T>
+ struct is_signed_helper
+ {
+-   typedef typename remove_cv<T>::type no_cv_t;
+    BOOST_STATIC_CONSTANT(bool, value = (!(::boost::detail::is_signed_values<T>::minus_one  > boost::detail::is_signed_values<T>::zero)));
+ };
+ 
diff --git a/devel/boost-libs/files/patch-boost_type__traits_is__unsigned.hpp b/devel/boost-libs/files/patch-boost_type__traits_is__unsigned.hpp
new file mode 100644
index 000000000000..0a776dd4790f
--- /dev/null
+++ b/devel/boost-libs/files/patch-boost_type__traits_is__unsigned.hpp
@@ -0,0 +1,42 @@
+--- boost/type_traits/is_unsigned.hpp.orig	2025-08-06 18:49:14 UTC
++++ boost/type_traits/is_unsigned.hpp
+@@ -13,6 +13,7 @@
+ #include <boost/type_traits/is_integral.hpp>
+ #include <boost/type_traits/is_enum.hpp>
+ #include <boost/type_traits/remove_cv.hpp>
++#include <boost/core/underlying_type.hpp>
+ 
+ #include <climits>
+ 
+@@ -26,6 +27,18 @@ namespace detail{
+ 
+ namespace detail{
+ 
++template <class no_cv_t, bool is_enum>
++struct is_unsigned_values_underlying_type
++{
++   typedef no_cv_t underlying_type;
++};
++
++template <class no_cv_t>
++struct is_unsigned_values_underlying_type<no_cv_t, true>
++{
++   typedef typename ::boost::underlying_type<no_cv_t>::type underlying_type;
++};
++
+ template <class T>
+ struct is_unsigned_values
+ {
+@@ -35,8 +48,10 @@ struct is_unsigned_values
+    // the correct answer.
+    //
+    typedef typename remove_cv<T>::type no_cv_t;
+-   static const no_cv_t minus_one = (static_cast<no_cv_t>(-1));
+-   static const no_cv_t zero = (static_cast<no_cv_t>(0));
++   typedef typename is_unsigned_values_underlying_type<no_cv_t, ::boost::is_enum<T>::value>::underlying_type underlying_type;
++
++   static const underlying_type minus_one = (static_cast<underlying_type>(-1));
++   static const underlying_type zero = (static_cast<underlying_type>(0));
+ };
+ 
+ template <class T>