Re: [Boost-build] bjam - Dependency check

Subject: Re: [Boost-build] bjam - Dependency check
From: Reynolds, John (John.Reynolds_at_[hidden])
Date: 2010-02-10 09:58:03

Volodya

Just out of curiosity is there any documentation on the various -d levels and what they do?

I can only see -d+2 and -d0 in the docs.

 -----Original Message-----
From: boost-build-bounces_at_[hidden] [mailto:boost-build-bounces_at_[hidden]] On Behalf Of Vladimir Prus
Sent: 09 February 2010 19:44
To: Boost.Build developer's and user's list
Subject: Re: [Boost-build] bjam - Dependency check

On Tuesday 09 February 2010 22:38:04 Anant Rao wrote:

> Hi,
> 
> I'm using:
> "Boost.Jam  Version 3.1.17. OS=LINUX."
> 
> When I ran bjam -n (the actual cmd is:
> ../../dev/ThirdParty/Boost/boost_1_40_0/linux/bjam --user-config=../misc/bjam_linux/user-config.jam -n release
> ),
> 
> it gives output as:
> 
> "
> ...
> ...found 3273 targets...
> ...updating 6 targets...
> gcc.compile.c++ docservices/documentprocessors/ParserProcessor/bin/gcc-4.3.3/release/debug-symbols-on/ParserProcessor.o
> ...
> "
> 
> The filesystem entryfor the target is:
> -rw-r--r-- 1 stratify stratify 3810924 Feb  9 05:38 docservices/documentprocessors/ParserProcessor/bin/gcc-4.3.3/release/debug-symbols-on/ParserProcessor.o
> 
> The filesystem entry for the corresponding source is:
> -rw-r--r-- 1 stratify stratify 27110 Jan 24 01:11 docservices/documentprocessors/ParserProcessor/src/ParserProcessor.cpp
> 
> My question:
> If the object file (target) is older than the source file, why does bjam think it needs to update the target? Am I doing anything incorrect?

Presumably, the .cpp files includes some headers that are newer than the object file. -d+12 should print dependency
information.

- Volodya

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