Re: [CMake] Link to local glibc

[Michele Portolan]

At the end of the day, here is what I did:

 1) create a development Centos 5.5 machine

 2) on the dev machine, I compiled gcc 4.9.3 from sources, installed it 
locally and updated the build system (cmake, etc..) with only local 
builds, if possible from source. By exploiting LD_LIBRARY_PATH, I link 
to the glibc et al. in the gcc 4.9.3 installation path


 3) I run Cmake on the dev machine, to obtain the executables and libraries

 4) I prepare a distribution with the Cmake-built exe and libs, and in 
case of dynamic linking, the dependecies found by ldd


 5) I unpack the distribution on my target Cento0S 5.5 machine and run 
the execs, if needed using LD_LIBRARY_PATH for the local libs



Quite the workaround, but it works better than manually handling all 
glibc dependencies!



Michele


On 08/03/17 17:57, Chuck Atkins wrote:


I'll try and see if I can compile a gcc 4.9.3 chain on the CentOS
5 machine (I need C++11).

I'd suggest using the devtollset repo from 
https://people.centos.org/tru/devtools/devtools.repo


The docker container looks interesting but I haven't used it yet:
does it need some specific install on the target machine? I don't
have any install rights on the Cento 5.11 machine


I think you misunderstand.  I meant to use a docker container on your 
Ubuntu machine running CentOS 5 as a development environment.  That 
way you can use your Ubuntu workstation to build in a CentOS 5 
environment.


- Chuck



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Re: [CMake] Link to local glibc

[Chuck Atkins]

>
> I'll try and see if I can compile a gcc 4.9.3 chain on the CentOS 5
> machine (I need C++11).
>
I'd suggest using the devtollset repo from
https://people.centos.org/tru/devtools/devtools.repo


> The docker container looks interesting but I haven't used it yet: does it
> need some specific install on the target machine? I don't have any install
> rights on the Cento 5.11 machine
>

I think you misunderstand.  I meant to use a docker container on your
Ubuntu machine running CentOS 5 as a development environment.  That way you
can use your Ubuntu workstation to build in a CentOS 5 environment.

- Chuck
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Re: [CMake] Link to local glibc

[Michele Portolan]

I'll try and see if I can compile a gcc 4.9.3 chain on the CentOS 5 
machine (I need C++11).


The docker container looks interesting but I haven't used it yet: does 
it need some specific install on the target machine? I don't have any 
install rights on the Cento 5.11 machine


Thanks,


Michele


Le 07/03/2017 à 22:33, Chuck Atkins a écrit :
If you're using a newer Ubuntu environment, I'd suggest using a CentOS 
5 docker container.   Either that or the VM.


- Chuck

On Tue, Mar 7, 2017 at 1:53 PM, Marcel Loose > wrote:


Hi Michele,

This could become a painful exercise. You basically have two options:
1) Treat it as a cross-compilation project, or
2) Create a virtual machine running CentOS 5.8 and do the build there.
If I were you, I would go for the second option.

Cheers,
Marcel.

Op 07-03-17 om 17:56 schreef Michele Portolan:
> Hello,
>
> I build on a Ubuntu machine (kernel 4.4.0-64-generic), but I need my
> program to be executed on an old Cento 5.8 (kernel 2.6.18). I tried
> compiling with "-static" to have static linking, but when I try to
> execute I get "ERROR: Kernel too old!"
>
> I therefore locally compiled a glibc with support for kernel
2.6.18 ...
> but how can I have Cmake use it instead of the system one?
>
> Thanks,
>
>
> Michele
>



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Re: [CMake] Link to local glibc

[Chuck Atkins]

If you're using a newer Ubuntu environment, I'd suggest using a CentOS 5
docker container.   Either that or the VM.

- Chuck

On Tue, Mar 7, 2017 at 1:53 PM, Marcel Loose  wrote:

> Hi Michele,
>
> This could become a painful exercise. You basically have two options:
> 1) Treat it as a cross-compilation project, or
> 2) Create a virtual machine running CentOS 5.8 and do the build there.
> If I were you, I would go for the second option.
>
> Cheers,
> Marcel.
>
> Op 07-03-17 om 17:56 schreef Michele Portolan:
> > Hello,
> >
> > I build on a Ubuntu machine (kernel 4.4.0-64-generic), but I need my
> > program to be executed on an old Cento 5.8 (kernel 2.6.18). I tried
> > compiling with "-static" to have static linking, but when I try to
> > execute I get "ERROR: Kernel too old!"
> >
> > I therefore locally compiled a glibc with support for kernel 2.6.18 ...
> > but how can I have Cmake use it instead of the system one?
> >
> > Thanks,
> >
> >
> > Michele
> >
>
>
>
> --
>
> Powered by www.kitware.com
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> Please keep messages on-topic and check the CMake FAQ at:
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Re: [CMake] Link to local glibc

[Marcel Loose]

Hi Michele,

This could become a painful exercise. You basically have two options:
1) Treat it as a cross-compilation project, or
2) Create a virtual machine running CentOS 5.8 and do the build there.
If I were you, I would go for the second option.

Cheers,
Marcel.

Op 07-03-17 om 17:56 schreef Michele Portolan:
> Hello,
> 
> I build on a Ubuntu machine (kernel 4.4.0-64-generic), but I need my
> program to be executed on an old Cento 5.8 (kernel 2.6.18). I tried
> compiling with "-static" to have static linking, but when I try to
> execute I get "ERROR: Kernel too old!"
> 
> I therefore locally compiled a glibc with support for kernel 2.6.18 ...
> but how can I have Cmake use it instead of the system one?
> 
> Thanks,
> 
> 
> Michele
> 




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[CMake] Link to local glibc

[Michele Portolan]

Hello,

I build on a Ubuntu machine (kernel 4.4.0-64-generic), but I need my 
program to be executed on an old Cento 5.8 (kernel 2.6.18). I tried 
compiling with "-static" to have static linking, but when I try to 
execute I get "ERROR: Kernel too old!"


I therefore locally compiled a glibc with support for kernel 2.6.18 ... 
but how can I have Cmake use it instead of the system one?


Thanks,


Michele

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