Re: [Boost-bugs] [Boost C++ Libraries] #7212: ./b2 fails with 'import error: length of source and target rule name lists don't match!'

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #7212: ./b2 fails with 'import error: length of source and target rule name lists don't match!'
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2012-08-24 16:24:40

#7212: ./b2 fails with 'import error: length of source and target rule name lists
don't match!'
-------------------------------+--------------------------------------------
  Reporter:  anonymous         |       Owner:  vladimir_prus
      Type:  Bugs              |      Status:  new          
 Milestone:  To Be Determined  |   Component:  build        
   Version:  Boost 1.51.0      |    Severity:  Problem      
Resolution:                    |    Keywords:               
-------------------------------+--------------------------------------------
Changes (by jurko):

  * owner:  => vladimir_prus
  * component:  Building Boost => build

Comment:

 Hi.

 I remember someone once asking me about something like this - here's a
 response I gave them in a personal e-mail message (never got any response
 back nor did I see them post a related question to any of the Boost
 mailing lists):

 --------------------------------------------------------
 >> I have used the following commands to install Boost  but i am
 >> getting the following error :-
 >>
 >> [priyanka_at_NGS boost_1_50_0]$ ./bootstrap.sh
 >> Building Boost.Build engine with toolset gcc...
 >> tools/build/v2/engine/bin.linuxx86_64/b2
 >> Detecting Python version... 2.7
 >> Detecting Python root... /usr
 >> ...
 >>
 >> [priyanka_at_NGS boost_1_50_0]$ ./bjam --prefix= /~/Downloads
 >> link=static runtime-link=static stage install
 >>
 /home/priyanka/Downloads/boost_1_50_0/tools/build/v2/kernel/modules.jam:326:
 >> in boost-build
 >> import error: length of source and target rule name lists don't
 >> match!
 >>      source: peek poke record-binding
 >>      target: modules.peek
 >> /home/priyanka/Downloads/boost_1_50_0/boost-build.jam:17: in
 >> module scope
 >
 >   And I really do not know how this happened at your site. I checked
 > the source code lines listed in your error report and in modules.jam
 > there is the following:
 >
 > local globalize = peek poke record-binding ;
 > IMPORT modules : $(globalize) : : modules.$(globalize) ;
 >
 > which expands to:
 >
 > IMPORT modules : peek poke record-binding : : modules.peek
 > modules.poke modules.record-binding ;
 >
 > In your case something seems to cause this to expand to:
 >
 > IMPORT modules : peek poke record-binding : : modules.peek ;
 >
 > Try adding some ECHO statements there like:
 >
 > ECHO /$(globalize)/ ;
 > ECHO /modules.$(globalize)/ ;
 >
 > and see what you get.

 --------------------------------------------------------

 Hopefully someone that can reproduce this issue can report back here (or
 even better - on the Boost Build mailing list) with some more information,
 otherwise, I do not see what to do about this.

 Some ideas:
 * What did the ECHO statements suggested above display?
 * Does the same occur with Boost library release 1.51?
 * Does the same occur when using the current Boost Build version from the
 trunk?
 * Are you sure you are using the correct Boost Jam executable?

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/7212#comment:4>
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