Re: [Boost-build] Newbie Clarifications

From: Jeff Holle (jeffreyholle_at_[hidden])
Date: 2007-04-19 18:59:38

Are you attempting to build your exe within or outside the boost 
directory tree?
If the later, one thing that might be getting you is the Jamfile at your 
highest level project directory should be Jamroot instead of Jamfile.

Also, I have some environment variables that were once needed but I 
don't know if still are.
There are:
  BOOST_ROOT=$HOME/boost_CVS/boost
  BOOST_BUILD=$BOOST_ROOT/BOOST_BUILD_PATH

As for building a simple exe, the Ramroot file below shows how.  Note it 
also show how to link to an existing system library.

  lib expat : : <file>/usr/local/lib/libexpat.so ;

  exe test
  : # sources
    test.cpp XMLReader.cpp expat
  : # requirements
 
  :
    debug
  ;

DrAnonymous wrote:
> Rene -
>
> Thanks for your help!
>
> I'm having a hardtime making my own simple test cases to understand 
> bjam and Boost.build.
>
> I wanted to compile a single cpp file and produce an executable.  
> Something like so:
>
> source.cpp
> bin
> ---source
> objs
> ---source.o
>
> I tried to use boost.build, but was having problems.  I also tried to 
> use bjam with only a Jamfile done according to the ftjam/jam docs.  
> Neither worked.  My cpp does use the spirit library and I couldn't 
> figure out how to include the headers from the Jamfile.
>
> Could I trouble you to provide some feedback or an example of how a 
> Jamfile would differ using boost.build vs just bjam without the 
> addtional jamfiles?
>
> Regards,
> Aaron R>
>
> PS - My directory layout is just an example, I just want to get it to 
> work first and then start doing more advanced things.
>
>
> On 4/19/07, *Rene Rivera* <grafikrobot_at_[hidden] 
> <mailto:grafikrobot_at_[hidden]>> wrote:
>
>     DrAnonymous wrote:
>     > I wondered if someone could humor me and clarify a few things?
>
>     Sure.
>
>     > - bjam is an executable that can replace make in its most trivial
>     > case.  So if you wanted to compile a simple hello world example,
>     all
>     > you would need is bjam, a Jamfile, and the hello world source file.
>     > Is this true?
>
>     Yes.
>
>     > - boost.build is a bunch of Jamfiles, containing rules, and
>     targets to
>     > provide higher level features for doing larger scale builds from
>     > source code?
>
>     Yes.
>
>     > - Does bjam do everything that jam and ftjam do, but more?
>
>     Not sure how far ftjam has progressed, but I'd guess the answer is
>     still
>     yes.
>
>     > - Do you have to use Boost.build to use bjam?
>
>     No.
>
>     > - I have an executable that reads in an input file and produces .cpp
>     > files (an autocoder).  Does bjam lend itself to running the
>     autocoder
>     > then compiling the new source files?
>
>     Hm, that's a hard question to answer since "lend" is a subjective
>     term.
>     But yes, bjam, and Boost.Build, support doing that. In the
>     abstract that
>     is what all compilers, linkers, etc. do. They take in input files and
>     generate output file(s).
>
>     > Your input is really appreciated!
>
>     NP.
>
>
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