Hardinfo: Hardinfo cannot run CPU Zlib benchmark. Cannot find libz.so.

[moma]

Binary package hint: hardinfo

This installation is a 32 bits version of Hardy Heron Test 2.

I start the "hardinfo" utility and try to run the CPU ZLib benchmark on it.

But it fails with an error message: "Cannot load ZLib. /usr/lib/libz.so not found".
See picture: http://www.edbl.no/tmp/hardinfo-error-2.png

I had already installed the "zlib1g" package so something else had to be wrong. The symbolic link to "libz.so" is missing.
$ ls -l /usr/lib/libz.*
lrwxrwxrwx 1 root root 15 2007-12-22 21:24 /usr/lib/libz.so.1 -> libz.so.1.2.3.3
-rw-r--r-- 1 root root 81240 2007-11-15 13:08 /usr/lib/libz.so.1.2.3.3

This error can be fixed by installing the development package "zlib1g-dev" . It creates the missing sym link to libz.so.

Hardinfo should not be dependent on the 2zlib1g-dev development package.
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A question:
I was told that the actual program line (in the source) is
libz = g_module_open("/usr/lib/libz.so", G_MODULE_BIND_LAZY);

Why does it use a fixed library path (/usr/lib/)?
Maybe the path is different on other Linux-distributions (eg. /lib/ or /usr/local/lib/)?
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Study also this related bugreport: https://bugs.launchpad.net/ubuntu/+source/hardinfo/+bug/178267
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[Cesare Tirabassi (norsetto)]

Please add any additional remark you feel is needed in the bug I opened in Debian (see link above).

[Wouter Stomp (wouterstomp-deactivatedaccount)]

This benchmark will be removed in the next version.

[Hew (hew)]

Bug is still present in Hardy release.

[Fevrin (fevrin)]

I can confirm as well that the bug is present in Ubuntu 8.04 (AMD64). As a workaround, I manually created a link called "libz.so.1" in /usr/lib/, which seems to be what zlib1g-dev does. So which "next version" is the benchmark going to be removed from? And any particular reason why?

[Julian Alarcon (julian-alarcon)]

I also like HardInfo. The benchmark to remove is the zlib. HardInfo is and stand still on the repos.

[Roberto Leinardi (leinardi)]

I solved the problem simply by installing zlib1g-dev:

sudo apt-get install zlib1g-dev

[Hew (hew)]

Is upstream ever going to release the new version with the fix? Perhaps it's time for Ubuntu to add a patch.

[Cesare Tirabassi (norsetto)]

>Perhaps it's time for Ubuntu to add a patch.

Yes, it is.

[Cesare Tirabassi (norsetto)]

hardinfo (0.4.2.3-4ubuntu1) intrepid; urgency=low

  * Correct libz SONAME to make the CPU Zlib benchmark available (LP: #178583).

 -- Cesare Tirabassi < <email address hidden>> Tue, 30 Sep 2008 11:38:28 +0200

[spcwingo (spcwingo1)]

I solved this problem by manually creating a symlink in /usr/lib/ named libz.so pointing to /usr/lib/libz.so.1.2.3.3. Now CPU ZLib benchmark works perfectly!