diff --git a/lib/isc/include/isc/refcount.h b/lib/isc/include/isc/refcount.h
index 8524b04410..ad361288b4 100644
--- a/lib/isc/include/isc/refcount.h
+++ b/lib/isc/include/isc/refcount.h
@@ -119,19 +119,26 @@ typedef atomic_uint_fast32_t isc_refcount_t;
 		ISC_INSIST(_refs > 0);                                \
 	} while (0)
 
-#define ISC_REFCOUNT_TRACE_DECL(name)                                         \
-	name##_t *name##__ref(name##_t *ptr, const char *func,                \
-			      const char *file, unsigned int line);           \
-	void name##__unref(name##_t *ptr, const char *func, const char *file, \
-			   unsigned int line);                                \
-	void name##__attach(name##_t *ptr, name##_t **ptrp, const char *func, \
-			    const char *file, unsigned int line);             \
-	void name##__detach(name##_t **ptrp, const char *func,                \
-			    const char *file, unsigned int line)
+#define ISC__REFCOUNT_TRACE_DECL(name, stat)                               \
+	stat name##_t *name##__ref(name##_t *ptr, const char *func,        \
+				   const char *file, unsigned int line);   \
+	stat void      name##__unref(name##_t *ptr, const char *func,      \
+				     const char *file, unsigned int line); \
+	stat void      name##__attach(name##_t *ptr, name##_t **ptrp,      \
+				      const char *func, const char *file,  \
+				      unsigned int line);                  \
+	stat	       name##__detach(name##_t **ptrp, const char *func,   \
+				      const char *file, unsigned int line)
 
-#define ISC_REFCOUNT_TRACE_IMPL(name, destroy)                                \
-	name##_t *name##__ref(name##_t *ptr, const char *func,                \
-			      const char *file, unsigned int line) {          \
+#define ISC_REFCOUNT_BLANK
+#define ISC_REFCOUNT_TRACE_DECL(name) \
+	ISC__REFCOUNT_TRACE_DECL(name, ISC_REFCOUNT_BLANK)
+#define ISC_REFCOUNT_STATIC_TRACE_DECL(name) \
+	ISC__REFCOUNT_TRACE_DECL(name, static inline)
+
+#define ISC__REFCOUNT_TRACE_IMPL(name, destroy, stat)                         \
+	stat name##_t *name##__ref(name##_t *ptr, const char *func,           \
+				   const char *file, unsigned int line) {     \
 		REQUIRE(ptr != NULL);                                         \
 		uint_fast32_t refs =                                          \
 			isc_refcount_increment(&ptr->references) + 1;         \
@@ -141,8 +148,8 @@ typedef atomic_uint_fast32_t isc_refcount_t;
 		return (ptr);                                                 \
 	}                                                                     \
                                                                               \
-	void name##__unref(name##_t *ptr, const char *func, const char *file, \
-			   unsigned int line) {                               \
+	stat void name##__unref(name##_t *ptr, const char *func,              \
+				const char *file, unsigned int line) {        \
 		REQUIRE(ptr != NULL);                                         \
 		uint_fast32_t refs =                                          \
 			isc_refcount_decrement(&ptr->references) - 1;         \
@@ -154,8 +161,9 @@ typedef atomic_uint_fast32_t isc_refcount_t;
 			"%s:%s:%s:%u:t%u:%p->references = %" PRIuFAST32 "\n", \
 			__func__, func, file, line, isc_tid(), ptr, refs);    \
 	}                                                                     \
-	void name##__attach(name##_t *ptr, name##_t **ptrp, const char *func, \
-			    const char *file, unsigned int line) {            \
+	stat void name##__attach(name##_t *ptr, name##_t **ptrp,              \
+				 const char *func, const char *file,          \
+				 unsigned int line) {                         \
 		REQUIRE(ptrp != NULL && *ptrp == NULL);                       \
 		uint_fast32_t refs =                                          \
 			isc_refcount_increment(&ptr->references) + 1;         \
@@ -165,8 +173,8 @@ typedef atomic_uint_fast32_t isc_refcount_t;
 		*ptrp = ptr;                                                  \
 	}                                                                     \
                                                                               \
-	void name##__detach(name##_t **ptrp, const char *func,                \
-			    const char *file, unsigned int line) {            \
+	stat void name##__detach(name##_t **ptrp, const char *func,           \
+				 const char *file, unsigned int line) {       \
 		REQUIRE(ptrp != NULL && *ptrp != NULL);                       \
 		name##_t *ptr = *ptrp;                                        \
 		*ptrp = NULL;                                                 \
@@ -181,37 +189,51 @@ typedef atomic_uint_fast32_t isc_refcount_t;
 			__func__, func, file, line, isc_tid(), ptr, refs);    \
 	}
 
-#define ISC_REFCOUNT_DECL(name)                                  \
-	name##_t *name##_ref(name##_t *ptr);                     \
-	void	  name##_unref(name##_t *ptr);                   \
-	void	  name##_attach(name##_t *ptr, name##_t **ptrp); \
-	void	  name##_detach(name##_t **ptrp)
+#define ISC_REFCOUNT_TRACE_IMPL(name, destroy) \
+	ISC__REFCOUNT_TRACE_DECL(name, destroy, ISC_REFCOUNT_BLANK)
+#define ISC_REFCOUNT_STATIC_TRACE_IMPL(name, destroy) \
+	ISC__REFCOUNT_TRACE_DECL(name, destroy, static inline)
 
-#define ISC_REFCOUNT_IMPL(name, destroy)                             \
-	name##_t *name##_ref(name##_t *ptr) {                        \
+#define ISC__REFCOUNT_DECL(name, stat)                                      \
+	stat name##_t *name##_ref(name##_t *ptr) __attribute__((unused));   \
+	stat void      name##_unref(name##_t *ptr) __attribute__((unused)); \
+	stat void      name##_attach(name##_t *ptr, name##_t **ptrp)        \
+		__attribute__((unused));                                    \
+	stat void name##_detach(name##_t **ptrp) __attribute__((unused))
+
+#define ISC_REFCOUNT_DECL(name)	       ISC__REFCOUNT_DECL(name, ISC_REFCOUNT_BLANK)
+#define ISC_REFCOUNT_STATIC_DECL(name) ISC__REFCOUNT_DECL(name, static inline)
+
+#define ISC__REFCOUNT_IMPL(name, destroy, stat)                      \
+	stat name##_t *name##_ref(name##_t *ptr) {                   \
 		REQUIRE(ptr != NULL);                                \
 		isc_refcount_increment(&ptr->references);            \
 		return (ptr);                                        \
 	}                                                            \
                                                                      \
-	void name##_unref(name##_t *ptr) {                           \
+	stat void name##_unref(name##_t *ptr) {                      \
 		REQUIRE(ptr != NULL);                                \
 		if (isc_refcount_decrement(&ptr->references) == 1) { \
 			isc_refcount_destroy(&ptr->references);      \
 			destroy(ptr);                                \
 		}                                                    \
 	}                                                            \
-	void name##_attach(name##_t *ptr, name##_t **ptrp) {         \
+	stat void name##_attach(name##_t *ptr, name##_t **ptrp) {    \
 		REQUIRE(ptrp != NULL && *ptrp == NULL);              \
 		name##_ref(ptr);                                     \
 		*ptrp = ptr;                                         \
 	}                                                            \
                                                                      \
-	void name##_detach(name##_t **ptrp) {                        \
+	stat void name##_detach(name##_t **ptrp) {                   \
 		REQUIRE(ptrp != NULL && *ptrp != NULL);              \
 		name##_t *ptr = *ptrp;                               \
 		*ptrp = NULL;                                        \
 		name##_unref(ptr);                                   \
 	}
 
+#define ISC_REFCOUNT_IMPL(name, destroy) \
+	ISC__REFCOUNT_IMPL(name, destroy, ISC_REFCOUNT_BLANK)
+#define ISC_REFCOUNT_STATIC_IMPL(name, destroy) \
+	ISC__REFCOUNT_IMPL(name, destroy, static inline)
+
 ISC_LANG_ENDDECLS