Re: every static library built twice ?

From: David Abrahams (dave_at_[hidden])
Date: 2003-12-18 11:11:12

"John Maddock" <john_at_[hidden]> writes:

>> I've just finished building boost from current CVS. Command line used:
>> $ bjam "-sTOOLS=mingw" "-sBUILD=debug release
>> <runtime-link>static/dynamic <threading>multi/single"
>
> Which will build four library versions:
>
> static runtime single threaded
> static runtime multi threaded
> dynamic runtime single threaded
> dynamic runtime multi threaded
>
>> object files are binary identical, but library files are slightly
>> different:
>
> I would expect both to be different in most cases.

Right. In the case of MinGW, it may be that some of the features
don't change compiler options, but only linker options. That's not
true of every toolset, though, and Boost.Build treats them all the
same.

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com