Re: [Boost-build] Compiling multiple source files

From: Rene Rivera (grafikrobot_at_[hidden])
Date: 2007-07-06 12:11:13

Phillip Seaver wrote:
> Rene Rivera wrote:
>> Phillip Seaver wrote:
>>   
>>> There was some discussion a while ago about compiling multiple source
>>> files with one compiler invocation --
>>> http://thread.gmane.org/gmane.comp.lib.boost.build/11177/focus=11200
>>>
>>> Has anyone looked at that?  I know that for some of my libraries and
>>> executables, I'd get a substantial speed increase over separate calls. 
>>> I'd like to do it myself, but I haven't had time to dig into boost-build
>>> to really understand how it works. 
>>>     
>> There is a basic issue with some compilers, msvc at least, that prevents 
>> using such a feature... They don't have a way of specifying where the 
>> object output (some neither globally nor individually) goes and hence 
>> you end up with a bunch of .obj files in whatever directory you happen 
>> to compile from.
>>   
> 
> This doesn't work? 
> http://thread.gmane.org/gmane.comp.lib.boost.build/11177/focus=11200
> 
>>From later in the same thread:
> 
>> /Fo "SomeDir" works fine but SomeDir  string should end with  '/'  or
>> '\' to specify directory 

That's what I get for not keeping everything I say in my head :-( ...I 
should try using this for the bjam.exe build to see how/if it works.

On the other question from that thread though... I don't know how to get 
BBv2 to pass multiple source files.

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