176c176
< #  elif defined(BOOST_MSVC) && (BOOST_MSVC < 1920)
---
> #  elif defined(BOOST_MSVC)
180,184d179
< 
< #  elif defined(BOOST_MSVC)
< 
<      // vc14.2:
< #    define BOOST_LIB_TOOLSET "vc142"