On Sun, 2010-03-14 at 23:40 +0100, Thomas Tempelmann wrote: > Hi there, > this is my first post. I've signed up here because I have a particular > problem I like to discuss with the developers. > > I'm a long-time software developer, although I'm not a big fan of Unix and > derivates. I am mostly developing for OS X, and used to do for classic Mac > OS, so I'm more of a autmatic tools user than a user of command line tools. > > > Anyway. I've created a 32 bit application that uses Gtk 2, which launches > fine on the 32 Bit Ubuntu 9.10 default installation. > > But when I launch the same app on the 64 bit Ubuntu version, the following > things happen: > > 1. > When launching by double clicking it within the Explorer (sorry, haven't > figured out the name of the UI desktop app yet), _nothing_ happens. Not even > a error message popping up. This is, IMO, something that should be fixed, > i.e. that the user needs to get some kind of response telling him that his > attempt to launch the app was actually understood. > > 2. > When launching it from the Terminal, the only message I get is "bash: > ./appname: No such file or directory". > > Now, this is a bad error message as well. The file exists and is executable. > So, the error message should be something like "required lib .. not found" > or "this executable has no code for this architecture" or whatever. But not > a message saying "there is no file". > > So, is there a chance that this gets fixed/improved without me actually > having to do that (I won't, I've got other problems, thank you :) ? > If so, where should I address this issue, or does this post already make it > into the bug DB even, magically? > > > BTW, I'm still stuck solving this problem, i.e. getting the right libs > installed so that this app eventually launches (no, I can not build a 64 bit > version of this app, just believe me), and so I installed, as a first step, > the "ia32-libs". This, in fact, made the misleading error msg in Terminal go > away, replaced by a similarly useless "segmentation fault" without any > further info even in which context this happened, and again with no error > msg when double clicking the app in Explorer. Any suggestions how I could > get at least some more information so that I can figure out which other 32 > bit libs are missing?
Hi, ldd <your binary> Will at least give you the list of shared libraries that your binary is using an if not present, tell you so. I'd expect a 32-bit only program that's to run on 64bit to be distributed in a static form to avoid issues like missing shared libraries. -- Stéphane Graber Ubuntu developer http://www.ubuntu.com
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