Re: [release] 1.74.0 post-beta merges

From: Antony Polukhin (antoshkka_at_[hidden])
Date: 2020-07-24 11:25:30

I'd like to merge the following fixes:

1) Missing include in LexicalCast
https://github.com/boostorg/lexical_cast/commit/9fdbf5ce67d9a9302cf16de4760d99090da97f44
2) Missing includes in DLL
https://github.com/boostorg/dll/commit/6fed722419caec8ff1049ea0e78afcd75daa6494
3) Variant issue that was preventing it from being used with Thread
https://github.com/boostorg/variant/commit/03035b2f6b5d48d82270725f6eb52968180a2c64
(thanks to Andrzej Krzemieński for the diagnose and fix!)

-- 
Best regards,
Antony Polukhin