Hi,

I downloaded and compiled idesk-0.5.6 without problems in Slack 9.0.

But when I run idesk, I get the following messages before idesk aborts:

libpng warning: Application was compiled with png.h from libpng-1.0.12
libpng warning: Application is running with png.c from libpng-1.2.5
libpng error: Incompatible libpng version in application and library
IMLIB ERROR: Cannot load immage: /home/mcp/.idesktop/firefox.png
All fallbacks failed

The same happens with the executables for idesk found at www.linxpackages.net. I've tried a couple of them, and I keep getting the same error, regardless of the idesk version.

I am sure I do not have libpng-1.0.12 in my system - the only libpng package that I have is libpng-1.2.5-i386-1.tgz that came in the Slackware 9.0 installation cd-rom- doing a "locate png.h" I only get version 1.2.5 files.

Does someone know how to fix this? I guess it's got to do with pkgconfig, but I'm not sure and if it is so, I don't know exactly how to fix it.

Regards,

marcelocp

Try this:
cd /usr/lib
ln -s libpng-1.2.5 libpng-1.0.12
I had similar problem with nedit.

Thanks for your post, gnashley,

But I do not have in /usr/lib a single target named "libpng-1.2.5". I have several libpng.a.*, libpng.so.* and libpng12.*

So I do not know to what of those files I'd link "libpng-1.0.2"- would you know?

Thks again!

marcelocp

Go into /usr/lib and do:
ls -l libpng*
You'll see the way the files are linked.
I have like this:
libpng.a -> libpng12.a
libpng.so -> libpng.so.3
libpng.so -> libpng.so.3.1.2.5
libpng12.a
libpng12.so -> libpng12.so.0
libpng12.so.0 -> libpng12.so.0.1.2.5
libpng12.so.0.1.2.5

What you need to add is something like this:
libpng10.so -> libpng12.so
( ln -s libpng12.so libpng10.so )
libpng10.so.0 -> libpng12.so.0
( ln -s libpng12.so.0 libpng10.so.0 )
etc, etc...
This will link the all to the old libs with the new libs. you may need to adjust the names still.

Hi gnashley,

Thanks for your willingness to help!

I found out the problem and was able to fix it- the errors messages were not actually from idesk executable, but from Imlib.

For some reasons I got old static libimglib's in my system, which were compiled for libpng 1.0.12. I just deleted them, compiled and installed the most recent version of imlib (2.1.6), and executed ldconfig - and idesk started working.

I don't remember, but I must have installed those old libimglib's some time ago, when I was noobier than now!

Again, tks for your help!

Possible that they were part of elflibs also.