Re: Compiling for multiple Linux distros

[Andrew Haley <aph at redhat dot com>]

Donal Riordan wrote:
> Hi, sorry to re-open this problem but compiling SWT applications for
> multiple distros is proving troublesome.
> 
> For my test case I'm trying to compile a simple 'hello world' swt app on
> Ubuntu and have the executable run on a fresh Fedora installation (it's
> a vm-ware image in case that matters).
> 
> On Ubuntu I compile the libswt.a library using:
> gcj -c -findirect-dispatch -fjni swt.jar -o libswt.a
> and then compile my application using:
> gcj -fjni -findirect-dispatch -classpath swt.jar --main=SWT SWT.java -o
> swt-ubuntu -L. -Wl,--no-whole-archive -lswt
> 
> The resultant executable works fine in Ubuntu but when I try to execute
> it in Fedora I get libgcj linking problems again:
> error while loading shared libraries: libgcj.so.81: cannot open shared
> object file: No such file or directory
> 
> I've been able to compile non-SWT programs in Ubuntu such that they run
> correctly on Fedora - I only encounter this problem when I try to use SWT.

Well, I could debug it but I don't have the code, so either you'll have to
produce a small (very small) test case that demonstrates the problem, or
you'll have to debug it yourself.  Clearly, someone is retaining a hard
link against libgcj, but I don't know which file it is.

Andrew.