In file included from mm-sleep-monitor.c:30:
mm-utils.h:28:18: error: redundant redeclaration of ‘singleton_instance’ [-Werror=redundant-decls]
e 28 | static TYPE *singleton_instance
| ^~~~~~~~~~~~~~~~~~
mm-utils.h:31:5: note: in expansion of macro ‘MM_DEFINE_SINGLETON_INSTANCE’
31 | MM_DEFINE_SINGLETON_INSTANCE (TYPE); \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
mm-utils.h:65:5: note: in expansion of macro ‘MM_DEFINE_SINGLETON_WEAK_REF’
65 | MM_DEFINE_SINGLETON_WEAK_REF (TYPE); \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~