linux C 編譯錯誤 error: ‘EOWNERDEAD’ undeclared (first use in this function)

 error: ‘EOWNERDEAD’ undeclared (first use in this function)linux error: ‘ENOTRECOVERABLE’ undeclared (first use in this function) this 在linux 使用pthread_mutex_lock()判斷返回值是否爲EOWNERDEAD，編譯出現錯誤。io 包含頭文件#

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