diff --git a/source/build/include/compat.h b/source/build/include/compat.h
index 081685490..bba12551f 100644
--- a/source/build/include/compat.h
+++ b/source/build/include/compat.h
@@ -687,6 +687,16 @@ void eduke32_exit_return(int) ATTRIBUTE((noreturn));
 
 # if CXXSTD >= 2011 || EDUKE32_MSVC_PREREQ(1800)
 using std::is_integral;
+template <typename T>
+struct is_signed
+{
+    static constexpr bool value = std::is_signed<T>::value;
+};
+template <typename T>
+struct is_unsigned
+{
+    static constexpr bool value = std::is_unsigned<T>::value;
+};
 # endif
 
 # if CXXSTD >= 2014
diff --git a/source/build/include/tracker.hpp b/source/build/include/tracker.hpp
index 3b6c8f383..10080d003 100644
--- a/source/build/include/tracker.hpp
+++ b/source/build/include/tracker.hpp
@@ -90,3 +90,14 @@ inline TrackedType TRACKER_NAME_<TrackedType>::cast() const
 {
     return this->TrackedValue;
 }
+
+template <typename TrackedType>
+struct is_signed<TRACKER_NAME_<TrackedType>>
+{
+    static constexpr bool value = std::is_signed<TrackedType>::value;
+};
+template <typename TrackedType>
+struct is_unsigned<TRACKER_NAME_<TrackedType>>
+{
+    static constexpr bool value = std::is_unsigned<TrackedType>::value;
+};