Pad RlctAttr for 32-bit systems

src/header/pthread/attr.rs

@@ -22,7 +22,9 @@ impl Default for RlctAttr {
             param: sched_param {
                 // TODO
                 sched_priority: 0,
-            }
+            },
+            #[cfg(target_pointer_width = "32")]
+            _pad: [0; 12],
         }
     }
 }

src/header/pthread/mod.rs

@@ -24,6 +24,8 @@ pub(crate) struct RlctAttr {
     pub stacksize: size_t,
     pub stack: size_t,
     pub param: sched_param,
+    #[cfg(target_pointer_width = "32")]
+    _pad: [u8; 12],
 }
 
 pub const PTHREAD_BARRIER_SERIAL_THREAD: c_int = -1;