How to Compile and Distruite your application

dcbasso

So, I want to send a demo to my client. I have compile the app, but What I really to do to make my application be runnable at any linux...
Any tutorial, tip, video will help...

Thanks all.

fractalist

Perhaps you might want to test with a vanilla copy of the Linux distribution your client has with virtualizaion software such as VirtualBox.

dcbasso

I make that, I copy the binary file and does not works...

guziemic

Does it starts with some errors or just missing libraries?

cincirin

See "this thread":http://qt-project.org/forums/viewthread/1872
For me it works perfectly both on linux x86 and arm architectures.

dcbasso

The error that I get on VM Ubuntu:

bash: ./InoveSATBEV: cannot execute binary file

cincirin

try to change permission:
@
chmod u+x InoveSATBEV
@

dcbasso

Still not working... same error...
I clients computer I need to Install something?

cincirin

Are you sure your application was developed for the same client computer architecture ?
What give you
@
lscpu
@

command on client machine ?
And what return
@
file InoveSATBEV
@

command on client machine ?

dcbasso

Sure!
I'm testing in my Virtual Machine!
Ow good... I think I found the problem... 64bits!
I compile in 64bits and trying to run on 32bits...

Return of comand file InoveSATBEV:
InoveSATBV: setuid ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.4, BuildID[sha1]=0x0277d22e5789d5b31dd3e18ec41948e9d078fe21, not stripped

dcbasso

For each plataform I will need copy the code, compile and test?
I mean, in Linux 32bits and Linux 64bits I will need to compile for each platform... that's right?
On windows 7 is the same thing?

cincirin

Applications developed for 32bits can be executed on windows 64 bits. This also applies to almost all 64 bits linux distributions.

dcbasso

It's possible to me compile the application to Linux 32bits?
My computer is 64bits, it's possible to compile to both platform in my environment?

cincirin

Yes. Install QtSDK for linux 32 bits in your 64 bits environment.

dcbasso

Simple.
Thanks, I have have more problems I will ask here.

dcbasso

OK compiled in 32bits, and works fine on 64bits!
But When I copy the application to another computer, I got this message:

./InoveSATBV: error while loading shared libraries: libqextserialport-1.2.so.1: cannot open shared object file: No such file or directory

dcbasso

Can I embed this ".so" file in my binary?

cincirin

[quote author="dcbasso" date="1344085828"]Can I embed this ".so" file in my binary?[/quote]

Yes if you build libqextserialport as static library.

[quote author="dcbasso" date="1344085378"]./InoveSATBV: error while loading shared libraries: libqextserialport-1.2.so.1: cannot open shared object file: No such file or directory[/quote]

Well, did you build libqextserialport yourself, or did you installed as part as your linux libraries packages ?
What is the result of
@
ldd InoveSATBV
@

command on client machine ?

dcbasso

I fix the problem using a runner to my application.
I don't really like my solution:

@
#!/bin/sh
export LD_LIBRARY_PATH=.
./appname $*
@

See: http://www.qtcentre.org/wiki/index.php?title=Deploying_Qt_Applications

Static library? I will search for this "resource".

dcbasso

Static Lib need to be a File ended with ".a"?
How can I configure the .pro file to differ the compilation for 32bits and 64bits?