Re: [boost] Making Boost invisible

Subject: Re: [boost] Making Boost invisible
From: Peter Dimov (lists_at_[hidden])
Date: 2018-09-25 18:08:01

John Maddock wrote:
> Folks I have a bug report against Boost.Config that I don't know what (if 
> anything) I should do about: https://github.com/boostorg/config/issues/243
>
> The issue is this: lets say I build boost as static libraries 
> with -fvisibilty=hidden because I want my application or shared library to 
> *hide all boost symbols*.  But there are some parts of boost which 
> unconditionally make things visible - throw_exception is one particular 
> culprit, but there are others, probably anything which uses 
> BOOST_SYMBOL_VISIBLE in fact.
>
> Question: should we support this?  If so how?  The only thing I can think 
> of is a user-defined macro which when set, disables symbol visibility.

That's the only thing we can do. #ifdef something, #define 
BOOST_SYMBOL_VISIBLE to nothing, let them deal with whatever happens.