Re: [V2] Completely confused.

From: David Abrahams (dave_at_[hidden])
Date: 2004-12-03 04:27:16

Vladimir Prus wrote:
> On Friday 03 December 2004 11:47, David Abrahams wrote:
> 
>>Vladimir Prus wrote:
>> > Obviously, there should be an invocation of main target rule. You can
>> > either define it yourself (like boostbook.jam defined the 'boostbook'
>> > rule, or let V2 do it for you:
>> >
>> > http://boost.org/boost-build2/doc/html/bbv2/extending/rules.html
>> >
>> > (Look for "the second approach" phrase).
>>
>>It says:
>>
>> if you create a module "obfuscate.jam" containing:
>>
>> import type ;
>> type.register OBFUSCATED_CPP : ocpp : : main ;
>>
>> import generators ;
>> generators.register-standard obfuscate.file : CPP : OBFUSCATED_CPP ;
>>
>> and import that module, you'll be able to use the rule
>> "obfuscated-cpp" in Jamfiles, which will convert source to the
>> OBFUSCATED_CPP type.
>>
>>Really? Where would that rule come from? Don't you mean "ocpp?"
> 
> 
> No, the name of the rule is derived from the name of target type 
> (OBFUSCATED_CPP), not from extension (ocpp). The target type is downcased and 
> then underscores are replaced with dashes. Which gives 'obfuscated-cpp'. I 
> already forgot why target types are in uppercase :-(

Well, that was really non-obvious. I think it needs to be documented 
there. You should also explain the role of "ocpp" there. What does it 
mean?

-- 
Dave Abrahams
Boost Consulting
http://www.boost-consulting.com