add fix to prevent GCC compilation crashing

CMakeLists.txt

@@ -6,9 +6,15 @@ set(CMAKE_CXX_STANDARD 23)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
 # define explicitely GCC version to prevent redefintion by CLANG
-# if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
+if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
     # add_compile_options(-fgnuc-version=${CMAKE_CXX_COMPILER_VERSION})
-# endif()
+    string(REPLACE "." ";" VERSION_LIST ${CMAKE_CXX_COMPILER_VERSION})
+    list(GET VERSION_LIST 0 VER_MAJOR)
+    list(GET VERSION_LIST 1 VER_MINOR)
+    list(GET VERSION_LIST 2 VER_PATCH)
+    math(EXPR GCC_VER "${VER_MAJOR}*10000+${VER_MINOR}*100+${VER_PATCH}")
+    add_compile_definitions("GCC_VERSION=${GCC_VER}")
+endif()
 
 # for ccls
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

asibfm700_config.h

@@ -450,18 +450,26 @@ public:
         std::error_code ec{};
         std::string output_buffer;
 
-        // #ifdef __GNUG__
-        // #if __GNUG__ < 16
-        //         auto write_rec = [&output_buffer, &ec, obj_ptr = this]<size_t I = 0>(this auto& self) -> void {
-        // #else
+#ifdef __GNUG__
+// to fix GCC compilation crash for the versions < 16
+#if GCC_VERSION < 160000
+        auto write_rec = [&output_buffer, &ec, obj_ptr = this]<size_t I = 0>(this auto& self) -> void {
+#else
         auto write_rec = [&output_buffer, &ec, this]<size_t I = 0>(this auto& self) -> void {
-            // #endif
-            // #endif
+#endif
+#endif
             if constexpr (I < NUMBER_OF_RECORDS) {
                 // add an empty string within records
                 std::format_to(std::back_inserter(output_buffer), "{}", DEFAULT_RECORD_DELIMITER);
 
+#ifdef __GNUG__
+// to fix GCC compilation crash for the versions < 16
+#if GCC_VERSION < 160000
+                ec = obj_ptr->template formatRecord<I>(output_buffer, DEFAULT_RECORD_DELIMITER, true);
+#else
                 ec = formatRecord<I>(output_buffer, DEFAULT_RECORD_DELIMITER, true);
+#endif
+#endif
                 if (ec) {
                     return;
                 }