Re: [Boost-build] Building Boost with MinGW

Subject: Re: [Boost-build] Building Boost with MinGW
From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2010-07-12 12:54:24

AMDG

Peter Rockett wrote:
>  On 12/07/10 16:08, Steven Watanabe wrote:
>> Peter Rockett wrote:
>>>  Newbie question: I am trying build Boost with MinGW using bjam from 
>>> inside MSys, the Bash-like interface supplied with MinGW.
>>>
>>> When I invoke bjam with the "--toolset=mingw" option (as detailed in 
>>> Table A.1 of the Boost.Build docs),

Table A.1 is for building bjam itself.  It doesn't apply to using 
Boost.Build.

>>> I get a set of error messages like "mingw.jam: No such file of 
>>> directory" and "rule mingw.init unknown in module toolset", all of 
>>> which imply that "mingw" is not a valid option.
>>>
>>> How do I build Boost with MinGW?
>>
>> Use toolset=gcc.
>
> Steven - is that a definitive instruction or give-this-a-try advice?

gcc is the correct toolset for mingw.

> I have tried gcc but I am not sure it works. The math lib names end-up 
> decorated with "c99" - MinGW does not conform to c99. MinGW is not 
> actually gcc - it doesn't use glibc.

The math libraries have c99 because they are implementations of the
c99 math functions, not because they use c99.

> Actually, I am trying to build a library (libDAI) which uses Boost. 
> libDAI builds 'out-of-the-box' on Linux but with MinGW, the build 
> fails with an obscure problem. My first suspicion is an issue with my 
> MinGW-built Boost libs. (Could be an issue with libDAI/MinGW, I 
> accept. But I'd like to be clear that's my problem, not something with 
> the Boost libs.)
>
> I have also tried toolset=gcc-no-cygwin (which passes the -no-cygwin 
> flag to gcc thereby invoking the mingw interface). This seems to 
> produce warnings about c89 not supporting long doubles (which I'd 
> expect with MinGW) but the libDAI build still breaks.
>
> Regardless, what has happened to the toolset=mingw option?

I don't think it ever existed.

In Christ,
Steven Watanabe