Fix build on macos (#388)

 

Signed-off-by: CalvinNeo <[email protected]>

Author: CalvinNeo

proxy_components/proxy_ffi/src/jemalloc_utils.rs

@@ -63,7 +63,15 @@ pub fn issue_mallctl_args(
             #[cfg(not(feature = "external-jemalloc"))]
             {
                 // Happens only with `raftstore-proxy-main`
-                return mallctl(c_ptr, oldptr, oldsize, newptr, newsize);
+                #[cfg(not(any(
+                    target_os = "android",
+                    target_os = "dragonfly",
+                    target_os = "macos"
+                )))]
+                {
+                    return mallctl(c_ptr, oldptr, oldsize, newptr, newsize);
+                }
+                0
             }
         }
     }