cmake hotfix windows

runtime/runtime.cmake

@@ -903,8 +903,9 @@ function(psxrecomp_add_runtime_target target)
     target_link_libraries(${target} PRIVATE chdr-static)
     # audio_trace.c uses C11 atomics. Make the runtime's actual language
     # requirement explicit instead of relying on a parent project's global
-    # CMAKE_C_STANDARD setting.
-    target_compile_features(${target} PRIVATE c_std_11)
+    # CMAKE_C_STANDARD setting. cxx_std_17 likewise — game CMakeLists may omit
+    # CMAKE_CXX_STANDARD; mod_packages.cpp must not compile as a pre-17 dialect.
+    target_compile_features(${target} PRIVATE c_std_11 cxx_std_17)
 
     # Game-specific executable name. Every title instantiates this function with
     # the same CMake target name ("psx-runtime"), so without this they ALL produce

runtime/src/mod_packages.cpp

@@ -1159,8 +1159,11 @@ void read_conditions(const toml::value& value, const std::vector<ModOption>& opt
             when[id] = condition_value;
         }
     }
-    for (const auto& [id, condition_value] : when) {
-        (void)condition_value;
+    /* Bind map entries to real locals before the lambda — capturing a
+     * structured binding is a C++20 extension and breaks MinGW C++17 builds. */
+    for (const auto& entry : when) {
+        const std::string& id = entry.first;
+        const std::string& condition_value = entry.second;
         const auto option = std::find_if(
             options.begin(), options.end(),
             [&](const ModOption& item) {