Re: [Boost-build] Meaning of gcc-mingw toolset

From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2020-04-16 11:03:40

AMDG

On 4/15/20 4:45 AM, Edward Diener via Boost-build wrote:
> In the multiprecision testing jamfile there is a line which has the
> requirement:
> 
> <toolset>gcc-mingw:<cxxflags>-Wa,-mbig-obj
> 
> I do not see a toolset called gcc-mingw nor do I see a subfeature of the
> gcc toolset called mingw.

The subfeature is called flavor.

> I do realize that the gcc toolset has support
> for mingw gcc on Windows, which I use myself in my user-config.jam with
> the plain designation of:
> 
> using gcc : nnn : etc ;
> 
> but the nnn is always a version number, like 9.3. The gcc.jam picks up
> that this is mingw-w64/gcc implementation internally and works fine with
> it. But whatever '<toolset>gcc-mingw' is supposed to mean it does not
> applu to my "toolset=gcc-nnn' when I run the test.

What is the path component for the toolset?  It should be
gcc-mingw-nnn.  Otherwise the detection for mingw isn't working.
Also, I recall that there used to be problems if you have both
mingw and non-mingw versions of gcc.  I don't remember whether
that was ever fixed.

> Can anyone enlighten
> me as to what is going on here ?
> 
In Christ,
Steven Watanabe