<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">I met the same problem before. In my memory, the solution is simple: adjust the appearance of the "-lm" parameter to be the last parameter. You can have a try.<div><br></div><div>Lei<br><div>
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<br><div><div>On Aug 23, 2012, at 11:24 AM, 孙龙 wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><pre>Hi all, I met the same problem as <a href="https://sos.ece.cmu.edu/pipermail/disksim-users/2011-December/000699.html">https://sos.ece.cmu.edu/pipermail/disksim-users/2011-December/000699.html</a>. But I didn't find any solutions. Can anyone help me?<br>
<br>"Hi all,
I'm trying to compile the DiskSim 4.0 and have the following error:
"...memsmodel/mems_piecewise_seek.c:524: undefined reference to `sqrt'"
and so on... (see the log file)
It seems to be a problem with the mathlib link, however I've check in
the makefile, and there is all ok (i.g. gcc -lm ...).
I'm actually not very familar with C/C++ and linux systems, so I'm in trouble :)"
</pre>
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