Re: msvc configuration question

From: David Abrahams (gclbb-jamboost_at_[hidden])
Date: 2003-05-08 11:27:30

Vladimir Prus <ghost_at_[hidden]> writes:

> I've a question for msvc users. Now, V2 works ok if you specify
>
> using msvc : 6.5 ;
>
> in user-config.jam. But if you write
>
> using msvc ;
>
> then it will works only if vcvasrs32.bat was called previously. Two people 
> already stumbled on it, and I think something should be done. The options are
>
> 1. Document the the second case ("using msvc ; ") works only if vcvars32.bat 
> were called.

-1

> 2. If vcvars32.bat is in path, use that to find the path to
> compiler. 

Usually the compiler and vcvars32.bat are in the same directory, so
this wouldn't do much.

-0

> Invoke vcvars32.bat before all tool invocations. If vcvars32.bat is
> not in path, look though default install location for versions 7.1,
> 7.0 and 6. If compiler is found in any of locations, it will be
> used.

it was supposed to work that way in the first place. If it didn't, it
was just a bug. Note also the issue with the handling of optional
features:

http://article.gmane.org/gmane.comp.lib.boost.build/2472

But anyway, my overall vote on this option is:

+1 

> 3. Try to sense if vcvars32.bat was already called. If so, use
> variables it sets to find the path to compiler. If vcvars32.bat is
> not already called, use logic from (2).

If it was already called, the compiler is in the path.

-1

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