[Scilab-users] Scilab compilation from scratch (was Re: spec can crash scilab)

[Stéphane Mottelet]

Hi,

I added also 'F77=gfortran-8' in the configure.

S.

Le 10/05/2021 à 09:12, Clément David a écrit :
> This one is less obvious and will require more explanation.
> In Scilab 6, we use modern C++ (C++11 and later) on our codebase which requires to have modern compilers and runtime libraries (libstdc++ libgfortran). For the compilation chain, we build gcc 8 on an old centos 6 distribution so runtimes are available. For people using Scilab, to avoid clashing between the system libstdc++/libgfortran and Scilab libstdc++/libgfortran, the Scilab runtime libraries are renamed to libscistdc++/libscigfortran.
>
> For building toolboxes against the Scilab runtime libraries and their libstdc++.so and libgfortran.so development libraries are provided on the Prerequirements. This is the source of your issue as the Prerequirements LDFLAGS are detected and used at configure-time. To fix, remove libstdc++.so and libgfortran.so on the Prerequirements; this will make your Scilab-build tied to your system; this is good for development purposes.
>
> Regards,
>
> Clément
>
>> -----Original Message-----
>> From: users <users-bounces at lists.scilab.org> On Behalf Of Antoine
>> Monmayrant
>> Sent: Sunday, May 9, 2021 4:39 PM
>> To: users at lists.scilab.org
>> Subject: Re: [Scilab-users] Scilab compilation from scratch (was Re: spec can
>> crash scilab)
>>
>> Hello all,
>>
>> Just a quick update:
>> (1) I installed & configured as default : openjdk-8 gcc-8 g++8
>> (2) I had to rm everything and restart from scratch: somehow, my first try at
>> compiling with openjdk-11 had left some *.class files behind (with the wrong
>> version) that make clean is not removing
>> (3) Now I am stuck at libscigfortran not being found. I'm pretty sure I miss
>> some mystery -lrandomlibame flag or someLD_* stuff... :
>>       /usr/bin/ld: warning: libscigfortran.so.5, needed by
>> /home/amonmayr/softs/scilab-
>> recompile/scilab_master/scilab/usr/lib/liblapack.so,
>> not found (try using -rpath or -rpath-link)
>>
>> If anyone who knows more than me about ld flags wants to chime in, I could
>> do with a bit of help...
>>
>> Cheers,
>>
>>
>> Antoine
>> PS: I tried to join config.log but the email got too big for the mailing list...
>>
>> On 07/05/2021 18:18, Clément David wrote:
>>> Hello Antoine,
>>>
>>> This issue might comes from a wrong jdk version, you should have
>>> openjdk8 installed on your machine and it should be listed at
>>> configure time. Could you post the config.log file for further
>>> investigation ?
>>>
>>> Thanks,
>>>
>>> Clément
>>>
>>> -----Original Message-----
>>> From: users <users-bounces at lists.scilab.org> On Behalf Of Antoine
>>> Monmayrant
>>> Sent: Friday, May 7, 2021 5:40 PM
>>> To: users at lists.scilab.org
>>> Subject: [Scilab-users] Scilab compilation from scratch (was Re: spec
>>> can crash scilab)
>>>
>>> Hello all,
>>>
>>> In order to try to mitigate bug 15330, I try to compile scilab from
>>> source on Linux Ubuntu 18.04 64bits.
>>> I follow the explanations from
>>> https://antispam.utc.fr/proxy/2/c3RlcGhhbmUubW90dGVsZXRAdXRjLmZy/wiki.scilab.org/Compilation%20of%20Scilab [Linux x86_64 cheat
>>> sheet].
>>> Sadly, I don't go really far as the prebuild of java fails:
>>>
>>>
>>>      Makefile:756: recipe for target 'java' failed
>>>
>>> Am I missing something?
>>> Are there other infos somewhere, in particular concerning the
>>> dependencies ?
>>> Is there a more detailed tutorial for building scilab?
>>>
>>> Cheers,
>>>
>>> Antoine
>>>
>>>
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>>
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-- 
Stéphane Mottelet
Ingénieur de recherche
EA 4297 Transformations Intégrées de la Matière Renouvelable
Département Génie des Procédés Industriels
Sorbonne Universités - Université de Technologie de Compiègne
CS 60319, 60203 Compiègne cedex
Tel : +33(0)344234688
http://www.utc.fr/~mottelet