[Scilab-Dev] scilab-5.4 compilation issues

[Guillaume Horel]

Thanks for the reply, so the question is how do I fix the first error
then? If I don't remove the extern statements I get a bunch of "error:
template with C linkage" errors.

Guillaume

On Sun, Jul 1, 2012 at 8:01 AM, Sylvestre Ledru
<sylvestre.ledru at scilab-enterprises.com> wrote:
> Bonjour Guillaume
>
> Sorry about le lag, we had crazy days here!
>
>
> Le 27/06/2012 04:14, Guillaume Horel a écrit :
>> Hello all,
>>
>> I'm trying to package the scilab-5.4 for gentoo. Scilab-5.3 compiles
>> fine on my computer, so my setup is nothing crazy. When I try to
>> compile from the latest snapshot from master or the beta1 tag, I get
>> the following error inside the compilation of the xml modules:
>> http://pastebin.com/hqTdW7Pm
> Interesting. I never saw that bug. Which version of libxml do you have ?
>> A bit of googling reveals that this is likely caused by ``dangling
>> extern "C" statements''. I tried to fix it using the following patch:
>> http://paste.lugons.org/show/2649/ These extern "C" clearly look
>> redundant since they're already in the libxml2 header files. This
>> allows the compilation to keep on going. However I get the following
>> error later on:
>>
>> make[1]: Entering directory
> [...]
>> /var/tmp/portage/sci-mathematics/scilab-5.3.999/work/scilab/modules/xml/.libs/libscixml.so:
>> undefined reference to `isXMLAttr(int*, void*)'
>> collect2: ld returned 1 exit status
>>
>> This may or may not be related to the previous fix given that the
>> missing symbols are xml related. Does anybody has any idea how to fix
>> this?
> Yes, the extern changes the mangeling of the library symbol (C++ vs C).
> It is the consequence of your previous change.
>
>
> Sylvestre
>