[Gambas-user] Problems with Library libffi.so.5 using GB_DIR

[EA7DFH]

craf escribió:
> -----Mensaje original-----
> De: Benoît Minisini <gambas at ...1...>
> Reply-to: mailing list for gambas users
> <gambas-user at lists.sourceforge.net>
> Para: mailing list for gambas users <gambas-user at lists.sourceforge.net>
> Asunto: Re: [Gambas-user] Problems with Library libffi.so.5 using GB_DIR
> Fecha: Tue, 6 Apr 2010 18:50:35 +0200
> 
> 
>> -----Mensaje original-----
>> De: craf <prog at ...2177...>
>> Reply-to: mailing list for gambas users
>> <gambas-user at lists.sourceforge.net>
>> Para: Lista Gambas Ingles <gambas-user at lists.sourceforge.net>
>> Asunto: [Gambas-user] Problems with Library libffi.so.5 using GB_DIR
>> Fecha: Mon, 05 Apr 2010 20:40:21 -0400
>>
>>> Hi.
>>>
>>> I'm still trying to port an application made in Gambas 2.20.2 in a
>>> distribution Ubuntu 9.10 to a distribution  Ubuntu 8.04, using the
>>> variable GB_DIR.
>>>
>>> My file executable.sh is as follows:
>>>
>>> #!/bin/sh
>>> export PATH=/opt/project/gambas2/bin
>>> export GB_DIR=/opt/project/gambas2/lib
>>> export
>>> LD_LIBRARY_PATH=/opt/project/gambas2/lib_shared/lib:/opt/project/gambas2/l
>>> ib_shared/usr/lib exec /opt/project/project.gambas
>>>
>>> When I try to execute it, gives me:
>>>
>>> "Segmentation fault"
>>>
>>> When you run the following command:
>>>
>>> ldd gbr2
>>>
>>> I stated:
>>>
>>> libffi.so.5 => not found
>>>
>>> This link is really there and points to the library libffi.so.5.0.8
>>>
>>> I searched the Internet for a possible solution, but all say that this
>>> error is because it is the libffi library, but in this case if.
>>> Could it be a problem in the library that comes with Ubuntu 9.10
>>> distribution?.
>>>
>>> Regards
>> Hi.
>>
>>
>> Gradually I have been understanding the operation of the variable
>> GB_DIR. As commented in the previous post, GBR2 not find the shared
>> library libffi.so.
>> Since I have little knowledge about C, I can not find you may be
>> failing.
>> As libffi.so.5.0.8 shared library is generated at compile Gambas, is
>> there any option to be added to the configure command?.
>> Do all the tips Doriano kindly told me, but nothing has worked.
>>
>> Any light on this matter is appreciated.
>>
>> Regards
>>
> 
> 
>> 1) GB_DIR must point at the gambas installation directory, i.e. 
>> "/opt/project/gambas2/"
> 
> Yes, That's right, this is the path that was provided in the file .sh
> 
>> 2) You must check where the segfault occurs, because a missing shared library 
>> should not cause that.
> 
>> To do that, compile Gambas with debugging information enabled (i.e. compile it 
>>from sources without changing any option). Then use the "gdb" debugger as 
>> explained on the web site ("Reporting a problem" page).
> 
> This is what gives me as a result:
> 
> GNU gdb 6.8-debian
> Copyright (C) 2008 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
> and "show warranty" for details.
> This GDB was configured as "i486-linux-gnu"...
> 
> (gdb) set args -p
> 
> (gdb) run
> 
> Starting program: /opt/project/gambas2/bin/gbx2 -p
> 
> /opt/project/gambas2/bin/gbx2: error while loading shared libraries: libffi.so.5: cannot open shared object file: No such file or directory
> 
> Program exited with code 0177.
> 
> (gdb) bt
> No stack.
> 
>> 3) libffi is checked at configuration time, so if it is not installed on your 
>> system, either not detected, you will have a warning that you won't be able to 
>> use extern functions, but that's all. Gambas will work anyway.
> 
> The libffi library if installed on my system, before compiling and installing Gambas 2.
> 
> This gives me running the following command:
> 
> $locate libffi.so
> ..
> /usr/lib/libffi.so
> /usr/lib/libffi.so.5
> /usr/lib/libffi.so.5.0.8
> 
> The main problem is that I failed to explain my problem.
> 
> I have Gambas 2.20.2 installed on my computer with Ubuntu 9.10.
> 
> If I create a project and execute it on the same computer running
> smoothly.
> 
> Now, if I want to bring my project to another computer with Ubuntu 9.10
> is not installed Gambas 2.20.2, use the variable GB_DIR. I think the
> routes and folders, copy and gbr2 gbx2. Copy only the libraries of
> components that need to make the program work, example. gb.gtk.so, la,
> so.0.0.0, etc.
> Do not copy the shared libraries needed by libraries Gambas components,
> as these are installed on the other computer.
> 
> Run the program and works flawlessly.
> 
> Now, I wanted to see if this worked for a different distribution of
> 9.10, ex. 8.04 (the oldest supported by Canonical).
> 
> For this I installed VirtualBox and I think a clean install of Ubuntu
> 8.04 on my computer.
> 
> I copy the previous project, but now I add the shared libraries needed
> by the libraries of components of Gambas.
> 
> I run the program and fails.
> 
> 
> Regards

Ooops. I think I replied in the wrong thread. Craf, please, look at your
other thread "Problem with PATH to shared library", may be it could help.

Regards,

Jesus Guardon