Juergen Kreileder writes:
>> I do not have the option to link against X11 libs directly.
> That was my first solution...
> With LD_PRELOAD all I have to do is
> $ LD_PRELOAD="libXm.so" LD_BIND_NOW=true ./bug
bash-2.01$ LD_PRELOAD="libXm.so" LD_BIND_NOW=true ./bug
./bug: error in loading shared libraries
/opt/local/lib/libXm.so: undefined symbol: XtStrings
> libXm.so is Metro Links' Motif 2.1 library.
Which I do not have. Frankly, it is nice of Metro to donate
their Motif for building, but if that's supposed to say I have
to buy it to get JDK to work, I am not too enthusiastic. What
is the problem with Lesstif?
> $ ldd /usr/X11R6/lib/libXm.so
bash-2.01$ ldd /opt/local/lib/libXm.so
libc.so.6 => /lib/libc.so.6 (0x40164000)
/lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x2aaaa000)
Hmmm. Maybe that's the problem with Lesstif. Guess I have to
take a closer look at a more recent release, and the way it
links. Anybody been down this road already?
> $ ldd ./bug
libjava.so
=> /opt/local/java/jdk/lib/i586/native_threads/libjava.so (0x40010000)
libc.so.6 => /lib/libc.so.6 (0x40075000)
libpthread.so.0 => /lib/libpthread.so.0 (0x4011c000)
libm.so.6 => /lib/libm.so.6 (0x40129000)
libdl.so.2 => /lib/libdl.so.2 (0x40142000)
/lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x40000000)
and no way to change this. In reality, it is even worse:
I want to create a DLL that is loaded by an application
with the following fixed linkage:
libX11.so.6 => /usr/X11R6/lib/libX11.so.6 (0x40010000)
libXext.so.6 => /usr/X11R6/lib/libXext.so.6 (0x400b3000)
libdl.so.2 => /lib/libdl.so.2 (0x400c1000)
libm.so.6 => /lib/libm.so.6 (0x400c4000)
libc.so.6 => /lib/libc.so.6 (0x400dd000)
/lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x40000000)
This app will do dlopen("bug"), effectively. I have to link
bug.so against libXm.so and libjava.so, and have to preload
them when starting an application that doesn't use them.
> The preload of libjava.so should not be necessary with v2/v3
> because I've added an ld lock.
OK. I got another bug program to test that ;-).
b.
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