This is no longer inline.

src/common/util.c

@@ -187,8 +187,9 @@ tor_malloc_zero_(size_t size DMALLOC_PARAMS)
  * 0xfffe0001. */
 #define SQRT_SIZE_MAX_P1 (((size_t)1) << (sizeof(size_t)*4))
 
-/** Return non-zero if and only if the product of the arguments is exact. */
-inline int
+/** Return non-zero if and only if the product of the arguments is exact,
+ * and cannot overflow. */
+int
 size_mul_check(const size_t x, const size_t y)
 {
   /* This first check is equivalent to