Re: [Boost-build] Selecting a compiler on the commandline

From: Mark Van Peteghem (Mark.Van.Peteghem_at_[hidden])
Date: 2008-03-21 06:33:04

Jurko Gospodnetić schreef:
>    Hi Mark.
>
>   
>> I have Visual C++ 6, VC++ 2003 and VC++ 2005 installed on my computer. I 
>> downloaded boost_1_34_1 and the most recent version of bjam.
>>
>> I tried to build the regex library with the following batch file:
>>
>> set PATH=C:\Program Files (x86)\Microsoft Visual 
>> Studio\VC98\Bin;C:\Libraries\boost-jam;c:\windows;c:\windows\system32;c:\windows\system
>> call vcvars32.bat
>> bjam --prefix=C:\Libraries\boost_1_34_1 -q -d+2 --with-regex 
>> --toolset=msvc stage
>>
>> but it seems that it builds with the VC++ 2005 compiler: the libraries 
>> and dlls have 80 in their name, and in the output of bjam I see that 
>> VC++ 2005 is called with its complete path. How do I specify that I want 
>> it to use VC++ 6?
>>
>> I find it very confusing that bjam is calling an application of which 
>> you thought it couldn't find because it is not on the path.
>>     
>
>    Actually whether you run vcvars32.bat on the command line or not does 
> not matter to Boost Build's msvc toolset. It runs its own environment 
> setup script before each command. Which one depends on the exact 
> compiler chosen but you can also set it explicitly as a parameter to the 
> using rule used to configure the available the msvc toolset. See the 
> documentation and the msvc toolset script for more detailed information.
>   

I see. I'm used to the theory that tools that are not on the path, can't 
be used. I guess I'll have to change my mindset, Eclipse does something 
similar with finding JVM's if none is specified. As long as it is 
documented how tools are found, it's ok.

-- 
  Mark
  _________________________________________
  When you get lemons, you make lemonade.
  When you get hardware, you make software.