diff --git a/nc_warnings.cmake b/nc_warnings.cmake
index 442e920..28cdfc8 100644
--- a/nc_warnings.cmake
+++ b/nc_warnings.cmake
@@ -104,6 +104,14 @@ append_compile_flag(-Wbitwise-instead-of-logical)
 append_compile_flag(-Wunaligned-access)
 append_compile_flag(-Wunreachable-code-fallthrough)
 
+# gcc 13
+append_compile_flag(-Wdangling-reference)
+
+# gcc 14
+append_compile_flag(-Welaborated-enum-base)
+#append_compile_flag(-Wnrvo)
+append_compile_flag(-Walloc-size)
+
 # -------------------------------------------------------------------------
 # Required extensions
 #AX_APPEND_COMPILE_FLAGS([-Wgnu-flexible-array-union-member], [], [-Werror])