diff --git a/components/lwp/SConscript b/components/lwp/SConscript
index 661a02e1f2e041ea4b964add1ca68cb4accfdf9c..b77df25870b5a8a412037892a2dad92774417233 100644
--- a/components/lwp/SConscript
+++ b/components/lwp/SConscript
@@ -19,7 +19,7 @@ if arch == 'risc-v':
         cpu = 'rv64'
 
 if GetDepend('LWP_UNIX98_PTY'):
-    print("LWP_UNIX98_PTY")
+    # print("LWP_UNIX98_PTY")
     src += Glob('unix98pty/*.c') 
     CPPPATH += ['unix98pty/']
 
diff --git a/include/libc/libc_errno.h b/include/libc/libc_errno.h
index 37f1ed44609d0dd4be609950d71a0087aafd05bf..d34a143faede30970bf6f352928ef08966f9a877 100644
--- a/include/libc/libc_errno.h
+++ b/include/libc/libc_errno.h
@@ -13,7 +13,7 @@
 
 #include <rtconfig.h>
 
-#if defined(RT_USING_NEWLIB) || defined(_WIN32) || defined(__ARMCC_GNUC__)
+#if defined(RT_USING_NEWLIB) || defined(RT_USING_MUSL) || defined(_WIN32) || defined(__ARMCC_GNUC__)
 /* use errno.h file in toolchains */
 #include <errno.h>
 #endif
@@ -45,7 +45,7 @@ defined in armcc/errno.h
 #define ERROR_BASE_NO    0
 #endif
 
-#if !defined(RT_USING_NEWLIB) && !defined(_WIN32) && !defined(__ARMCC_GNUC__)
+#if !defined(RT_USING_NEWLIB) && !defined(RT_USING_MUSL) && !defined(_WIN32) && !defined(__ARMCC_GNUC__)
 
 #define EPERM            (ERROR_BASE_NO + 1)
 #define ENOENT           (ERROR_BASE_NO + 2)
diff --git a/include/rtdef.h b/include/rtdef.h
index 1e7f5167bab1e74f277c881d68c9eb6d14aea4b4..260bb45b7b5671a46b4df8cde1a488293cd9be39 100644
--- a/include/rtdef.h
+++ b/include/rtdef.h
@@ -775,6 +775,7 @@ typedef struct rt_thread *rt_thread_t;
 
 #define RT_IPC_CMD_UNKNOWN              0x00            /**< unknown IPC command */
 #define RT_IPC_CMD_RESET                0x01            /**< reset IPC object */
+#define RT_IPC_CMD_GET_STATE            0x02            /**< get the state of IPC object */
 
 #define RT_WAITING_FOREVER              -1              /**< Block forever until get resource. */
 #define RT_WAITING_NO                   0               /**< Non-block. */
diff --git a/include/rthw.h b/include/rthw.h
index f86618a5752b89c153a95c5291c1007047a9e263..6492bec2e90a93abf94af9eb672dac85be603aaf 100644
--- a/include/rthw.h
+++ b/include/rthw.h
@@ -151,6 +151,7 @@ void rt_hw_exception_install(rt_err_t (*exception_handle)(void *context));
 void rt_hw_us_delay(rt_uint32_t us);
 
 #ifdef RT_USING_SMP
+#include <cpuport.h> /* for spinlock from arch */
 
 struct rt_spinlock
 {