title: What is MSVC /Zp alternative on GCC and clang?
body: <p>In case, i want to define the structure alignment at a module level using the compiler flags such as <a href="https://msdn.microsoft.com/en-us/library/xh3e3fd0.aspx" rel="nofollow">/Zp</a> for cl on windows. What are the alternatives on GCC and clang?</p>