Re: [Rd] Cross-compilation

From: Tom McCallum <term_at_blueyonder.co.uk>
Date: Wed 25 Oct 2006 - 17:28:45 GMT

Thanks for your reply, as an example it appears to have difficulty linking to even ostream library of the standard C++, as shown below:

/home/tmccallum/ritzel/RItzel/src/Classifier.cpp:209: undefined reference to `_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc' Classifier.o: In function `operator<<':
/usr/lib/gcc/i386-redhat-linux/4.0.2/../../../../include/c++/4.0.2/ostream:218: undefined reference to `_ZNSolsEd'
/usr/lib/gcc/i386-redhat-linux/4.0.2/../../../../include/c++/4.0.2/ostream:196: undefined reference to `_ZNSolsEl'

I am currently working R-2.4.0 as downloaded today.

I know the g++ has gone through some alterations and wondered if you knew the version of g++ you cross-compiled your package with for comparison - mine is g++ (GCC) 4.0.2 20051125 (Red Hat 4.0.2-8).

Many thanks

Tom

On Wed, 25 Oct 2006 18:10:40 +0100, Ramon Diaz-Uriarte <rdiaz@cnio.es> wrote:

> Dear Tom,
>
> It has worked for me out-of-the box in at least two times, one a while
> ago
> with R-2.2-something and recently with R-2.4.0. In both cases, I was
> running
> Debian (with a mix of testing and unstable) on x86. I never had to do
> anything, just run the script and at least in one case I did
> crosscompile a
> package with C++.
>
>
> R.
>
> On Wednesday 25 October 2006 18:03, Tom McCallum wrote:
>> Hi everyone,
>>
>> I am trying to cross-compile a package I wrote using the Yan and Rossini
>> tutorial "Building Microsoft Windows versions of R and R packages using
>> Intel Linux". I have got reasonably far with this but when doing the
>> linking using the line:
>>
>> i586-mingw32-g++ -shared -s -o mylibrary.dll mylibrary.def mylibrary.o
>> mylibrary_res.o -L/my/path/RCrossBuild/WinR/R-2.4.0/bin -lR
>>
>> I get lots of these type of messages:
>> /my/path/to/mylibrary.cpp:43: undefined reference to
>> `_GLOBAL_OFFSET_TABLE_'
>>
>> and other similar linker errors for virtually every object and command
>> in
>> the program. After some googling I have found that there may be
>> problems
>> with the libgcc.a library and its default -fPIC argument during
>> compilation.
>>
>> Has anyone got this tutorial to work and if so how did they overcome
>> this?
>>
>> I am attempting to do this on Fedora Core 4 on a 32-bit machine, having
>> completed all the previous sections of the tutorial for building a
>> cross-platform version of R.
>>
>> Many thanks
>>
>> Tom
>

-- 
---

Tom McCallum

WWW: http://www.tom-mccallum.com
Tel: 0131-4783393
Mobile: 07866-470257

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