AX_APPEND_COMPILE_FLAGS([-Wctor-dtor-privacy])
AX_APPEND_COMPILE_FLAGS([-Wfloat-equal])
AX_APPEND_COMPILE_FLAGS([-Wformat=2])
-AX_APPEND_COMPILE_FLAGS([-Wlong-long])
+dnl AX_APPEND_COMPILE_FLAGS([-Wlong-long])
AX_APPEND_COMPILE_FLAGS([-Wmaybe-uninitialized])
AX_APPEND_COMPILE_FLAGS([-Wmissing-field-initializers])
AX_APPEND_COMPILE_FLAGS([-Wmissing-noreturn])