+dnl AX_APPEND_COMPILE_FLAGS([-std=c++11])
+AX_APPEND_COMPILE_FLAGS([-Wpragmas])
+dnl AX_APPEND_COMPILE_FLAGS([-pedantic])
+AX_APPEND_COMPILE_FLAGS([--paramssp-buffer-size=1])
+AX_APPEND_COMPILE_FLAGS([-D_FORTIFY_SOURCE=2])
+AX_APPEND_COMPILE_FLAGS([-Waddress])
+AX_APPEND_COMPILE_FLAGS([-Warray-bounds])
+AX_APPEND_COMPILE_FLAGS([-Wchar-subscripts])
+AX_APPEND_COMPILE_FLAGS([-Wcomment])
+AX_APPEND_COMPILE_FLAGS([-Wctor-dtor-privacy])
+AX_APPEND_COMPILE_FLAGS([-Wfloat-equal])
+AX_APPEND_COMPILE_FLAGS([-Wformat=2])
+dnl AX_APPEND_COMPILE_FLAGS([-Wlong-long])