Completely not include the stacktrace on Windows.

src/Exception.hpp

@@ -1,19 +1,21 @@
 #ifndef ARBUTILS_EXCEPTION_HPP
 #define ARBUTILS_EXCEPTION_HPP
-#if !WINDOWS
-#define BACKWARD_HAS_BFD 1
-#endif
 
 #include <exception>
 #include <sstream>
 #include <string>
 #include <utility>
+#if !WINDOWS
+#define BACKWARD_HAS_BFD 1
 #include "../extern/backward.hpp"
+#endif
 
 namespace ArbUt {
     class Exception : std::exception {
         std::string _msg;
+#if !WINDOWS
         backward::StackTrace _stack;
+#endif
 
     public:
         explicit Exception(std::string msg) : _msg(std::move(msg)) { _stack.load_here(9); }
@@ -21,6 +23,7 @@ namespace ArbUt {
         [[nodiscard]] const char* what() const _GLIBCXX_TXN_SAFE_DYN _GLIBCXX_NOTHROW override { return _msg.c_str(); }
 
         [[nodiscard]] std::string GetStacktrace(size_t depth = 6, bool include_addr = true) const {
+#if !WINDOWS
             backward::TraceResolver tr;
             tr.load_stacktrace(_stack);
             std::stringstream ss;
@@ -54,6 +57,9 @@ namespace ArbUt {
                 }
             }
             return ss.str();
+#else
+            return "Stack trace not available on Windows.";
+#endif
         }
     };
 }