emacs24 while byte compiling will keep asking for a shared lib not existing in my system

[Pascal Mons]

I was running emacs24 on Precise 12.04 after an install from this ppa @ https://launchpad.net/~cassou/+archive/emacs

Install worked fine. Until recently when installing new programs (SuperCollider) which were byte compiling for emacs24.

For some mysterious reason at that time emacs24 was trying to open a shared library libgvc.so.6 which was never present in my system for a good reason : It will be on the soon to be released Trusty 14.04. The library is libgvc.so.6 which is part of a Graphviz package libgvc6. At that time I had subscribed to the GraphvizDev ppa @ https://launchpad.net/~gviz-adm/+archive/graphviz-dev which later on forbid me to intall the package python-pygraphviz . Then I decided to remove this ppa and install Graphviz from the regular Precise 12.04 repository for packages graphviz libcdt4 libgraphviz-dev libcgraph5 libgvc5. This later package libgvc5 contains the shared lib libgvc.so.5 . Here is the error message :

[...]
Install cmake-data for emacs24
install/cmake-data: Byte-compiling for emacs24
emacs24: error while loading shared libraries: libgvc.so.6: cannot open shared object file: No such file or directory
Install dictionaries-common for emacs24
install/dictionaries-common: Byte-compiling for emacsen flavour emacs24
emacs24: error while loading shared libraries: libgvc.so.6: cannot open shared object file: No such file or directory
ERROR: install script from dictionaries-common package failed
dpkg: error processing emacs24 (--configure):
 subprocess installed post-installation script returned error exit status 1
Setting up emacs24-common-non-dfsg (24.3+1-1~ppa1~precise1) ...
E: Sub-process /usr/bin/dpkg returned an error code (1)
$

I tried to remove alltogether Graphviz and cmake ... to no avail. Does anyone know why emacs24 keeps asking for this particular shared lib ?

I tried to install the packages from Trusty 14.04 as well but didn't go far as it's a chain of broken dependencies.

Whem removing emacs24 , the system re-install emacs23 and there is no problem in byte compiling all the installed apps. Why was it working for some days then suddenly asking for a non existent shared lib ? Can anyone sheds light on this ?

Is there any workaround ?

At the moment I returned to emacs23.

[Pascal Mons (anton+)]

I have looked to the shared libraries cache and there is no trace (as expected) of the library reported as missing libgvc.so.6 (this is a symlink to libgvc.so.6.0.0 the actual lib).

$ ldconfig -p | grep libgvc
 libgvc.so.5 (libc6,x86-64) => /usr/lib/libgvc.so.5
 libgvc.so (libc6,x86-64) => /usr/lib/libgvc.so
$
$ cd /
$
$ locate libgvc.so.5
/usr/lib/libgvc.so.5
/usr/lib/libgvc.so.5.0.0
$ locate libgvc.so.6
$

To cir-convent this bug I resorted to make a symlink libgvc6.0

$ sudo ln -sv libgvc.so.5.0.0 /usr/lib/libgvc.so.6

$ ls -l /usr/lib/libgvc*
lrwxrwxrwx 1 root root 15 Jan 14 14:42 /usr/lib/libgvc.so -> libgvc.so.5.0.0
lrwxrwxrwx 1 root root 15 Jan 14 14:42 /usr/lib/libgvc.so.5 -> libgvc.so.5.0.0
-rw-r--r-- 1 root root 506184 Jan 14 14:42 /usr/lib/libgvc.so.5.0.0
lrwxrwxrwx 1 root root 11 Apr 1 16:02 /usr/lib/libgvc.so.6 -> libgvc.so.5
$

However this is not a regular procedure. I would like to know where the request from emacs24 install comes from ? for a non-existent shared library.

[era (era)]

If I understand your bug report correctly, you are not using emacs24 as shipped by Ubuntu. Is there something we can fix in Ubuntu or should this be converted into a question?

  New => Incomplete

[Launchpad Janitor (janitor)]

[Expired for emacs24 (Ubuntu) because there has been no activity for 60 days.]