build/Jamfile overrides <warnings> #223
Description
As mentioned in #219, linking to /boost/serialization//boost_serialization/<warnings>off doesn't propagate <warnings>off to Regex, which breaks when warnings-as-errors is on.
That's because build/Jamfile contains
project : requirements
# default to all warnings on:
<warnings>all
: common-requirements <library>$(boost_dependencies)
: requirements <library>$(boost_dependencies_private)
;
which overrides the inherited <warnings>off with <warnings>all.
The comment says "default to all warnings on", but since it's a requirement, it's not a default and is always applied.
It should be put in default-build instead.