Thanks Anthony,
> I want to distribute an application written in python 3.1 that uses the
> > PyQt4 widget toolkit. I'd like to make the app available to as many
> people
> > as possible (in binary form). I've gotten it to freeze on both windows
> and
> > linux (I don't own a mac). In my experience the windows-frozen apps
> always
> > work on windows machines, but I've no clue how well this works in Linux.
> > Will the binaries work on *any* Linux distribution? Or only on Debian
> > derived Linuxes (I'm running Linux Mint myself)?
>
> On Linux the main issue is glibc which you need to make sure is "as
> old as possible" in order to cover most of the distributions out
> there. Glibc is backwards compatible but not forwards compatible so
> you need to act accordingly. I generally use CentOS 5.x as that is
> fairly old and covers most of the distributions in the past few years.
>
So you mean I'd best build the binaries on an old OS? And does this depend
on how much "exotic low level stuff" I use in my application, or only how
new the version is that is on my system?
And would that be a common problem, or only for 2% of people who use old
OS's?
It's just that I found installing Qt4 with Qscintilla for Python3.1 on Linux
quite a project itself, and I feel reluctant to having to do that again on a
distribution that I do not know. I'm rather new to Linux you see...
> Generally, you need to run ldd on the executable and see what turns up
> and make sure that either the shared library is "standard" and
> available on all distributions, your documentation includes a
> reference to this library as something that needs to be installed on
> the system (not normally installed but available from standard
> repositories) or is included in your package. cx_Freeze automatically
> performs ldd on the executable and all Python extensions but will
> ignore anything found in /lib and /usr/lib as "standard".
Does this mean that if it needs a library that is not standard, but which I
installed at some point, will not be included in the application?
Here's an idea: what if I installed say CentOS and test the binaries there.
If they'd work, would I be (relatively) save?
Thanks in advance,
Almar
PS: Sorry for the many questions. As I said, I'm a bit of a newby to Linux
:)
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