id summary reporter owner description type status milestone component version severity resolution keywords cc 12458 Boost should use /utf8 compiler option for Visual C++ builds thomas.sondergaard@… This prevents non-ascii and non-utf8 encoded characters to sneak into the source code of modules. Preventing this helps library users that compile with /utf8 to avoid a C4828 warning from the cl compiler. Bugs new To Be Determined Building Boost Boost 1.61.0 Problem