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@@ -52,13 +52,12 @@ endif
 
 $(info detected compiler is $(COMPILER_NAME) major version $(COMPILER_VERSION_NUMBER_MAJOR))
 
-ifeq ($(COMPILER_NAME),NVHPC)
-	CXXFLAGS += -std=c++23
-else
-	CXXFLAGS += -std=c++23 -ftree-vectorize -Wunused-macros -Werror -Wno-error=unknown-pragmas -Wno-error=cast-function-type -MD -MP -ftrivial-auto-var-init=pattern
+CXXFLAGS += -std=c++23 -fstrict-aliasing
+
+ifneq ($(COMPILER_NAME),NVHPC)
+	CXXFLAGS += -ftree-vectorize -Wunused-macros -Werror -Wno-error=unknown-pragmas -Wno-error=cast-function-type -MD -MP -ftrivial-auto-var-init=pattern
 endif
 
-CXXFLAGS += -fstrict-aliasing
 # CXXFLAGS += -DUSE_SIMPSON_INTEGRATOR=true
 
 # profile-guided optimisation