Document conditional settings based on multiple features

[jurko at docte dot hr]

The undocumented way I found to add conditional settings based on multiple features is to separate the efatures using a comma as in:

  <toolset>msvc,<variant>debug:<linkflags>/NODEFAULTLIB:libcmt.lib

This should be documented and examples demonstrating this should be included.

[jasonspiro4@…]

Thanks for your feedback.

I notice this is already documented at ​http://www.boost.org/doc/libs/1_35_0/doc/html/bbv2/reference.html#bbv2.reference.variants.propcond ; that manual section says:

The syntax also allows several properties in the condition, for example: 

exe hello : hello.cpp : <os>NT,<toolset>gcc:<link>static ;

Probably someone wrote that bit of documentation sometime after you filed your feature request.