<div dir="ltr"><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small">​You are totally right. I think I found the problematic ​part in one of the Makefiles. Thank you for all your helps. Sorry for pointing to the wrong direction.</div>

<div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small">- Mani</div><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small">

<br></div></div><div class="gmail_extra"><br clear="all"><div>Mani Monajjemi</div>
<br><br><div class="gmail_quote">On Fri, Feb 21, 2014 at 2:02 PM, Tully Foote <span dir="ltr"><<a href="mailto:tfoote@osrfoundation.org" target="_blank">tfoote@osrfoundation.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">

<div dir="ltr">Yes, ccache is there and available. But the build of the sdk is calling the full path to /usr/lib/ccache/ar but ccache doesn't install a different version of ar in that location. You need to look into that build rule and find out why it's trying to use ar from that directory.<span class="HOEnZb"><font color="#888888"><div>



<br></div><div>Tully<br><div><br></div><div><br></div></div></font></span></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><br><div class="gmail_quote">On Fri, Feb 21, 2014 at 12:16 PM, Mani Monajjemi <span dir="ltr"><<a href="mailto:mani.monajjemi@gmail.com" target="_blank">mani.monajjemi@gmail.com</a>></span> wrote:<br>



<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small">Hi Tully,<br><br></div>



<div><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small">Thank you for your answer. <br>

<br></div></div><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small">I think the reference to `ccache` in that folder name is because `ccache` is being used by default in the environment. I checked console output for two other ROS packages and they both have this line in their CMake output: <br>





<br><pre>-- Check for working C compiler: /usr/lib/ccache/gcc
-- Check for working C compiler: /usr/lib/ccache/gcc -- works</pre><br></div><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small">For example: <br><br>[actionlib] <a href="http://jenkins.ros.org/job/devel-hydro-actionlib/ARCH_PARAM=amd64,UBUNTU_PARAM=precise,label=devel/lastBuild/console" target="_blank">http://jenkins.ros.org/job/devel-hydro-actionlib/ARCH_PARAM=amd64,UBUNTU_PARAM=precise,label=devel/lastBuild/console</a><br>





[convex_decomposition] <a href="http://jenkins.ros.org/job/devel-hydro-convex_decomposition/ARCH_PARAM=amd64,UBUNTU_PARAM=precise,label=devel/16/console" target="_blank">http://jenkins.ros.org/job/devel-hydro-convex_decomposition/ARCH_PARAM=amd64,UBUNTU_PARAM=precise,label=devel/16/console</a><br>





<br></div><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small">Exactly similar thing happens in the full console of the problematic package: <a href="http://jenkins.ros.org/job/ros-hydro-ardrone-autonomy_binarydeb_precise_amd64/2/consoleFull" target="_blank">http://jenkins.ros.org/job/ros-hydro-ardrone-autonomy_binarydeb_precise_amd64/2/consoleFull</a><br>





<br></div><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small">I guess `pbuilder` is integrating `ccache` by default: <a href="https://wiki.ubuntu.com/PbuilderHowto#Integration_with_ccache" target="_blank">https://wiki.ubuntu.com/PbuilderHowto#Integration_with_ccache</a><br>





<br></div><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small">- Mani<span><font color="#888888"><br></font></span></div></div><div class="gmail_extra"><span><font color="#888888"><br clear="all">



<div>Mani Monajjemi</div></font></span><div><div>
<br><br><div class="gmail_quote">On Fri, Feb 21, 2014 at 11:23 AM, Tully Foote <span dir="ltr"><<a href="mailto:tfoote@osrfoundation.org" target="_blank">tfoote@osrfoundation.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">





<div dir="ltr">From your build output I see the following reference to ccache in the target architecture. I think that's probably where you want to look. <div><br></div>    Building architecture x86_64 <Output in /tmp/buildd/ros-hydro-ardrone-autonomy-1.3.1-0precise-20140219-2242/obj-x86_64-linux-gnu/ardrone/src/ardronelib/ARDroneLib/FFMPEG/ffmpeg/../../Soft/Build/targets_versions//ffmpeg_x86_64_PROD_MODE_Linux_3.5.0-46-generic_GNU_Linux_usrlibccachegcc_4.6.3><br>







<br>Here: <a href="http://jenkins.ros.org/job/ros-hydro-ardrone-autonomy_binarydeb_precise_amd64/2/console" target="_blank">http://jenkins.ros.org/job/ros-hydro-ardrone-autonomy_binarydeb_precise_amd64/2/console</a><span><font color="#888888"><div>





<font color="#000000"><span style="font-size:11px;white-space:pre-wrap"><br>

</span></font></div><div><font color="#000000"><span style="font-size:11px;white-space:pre-wrap">Tully</span></font></div></font></span></div><div><div><div class="gmail_extra"><br><br><div class="gmail_quote">

On Fri, Feb 21, 2014 at 10:28 AM, Mani Monajjemi <span dir="ltr"><<a href="mailto:mani.monajjemi@gmail.com" target="_blank">mani.monajjemi@gmail.com</a>></span> wrote:<br>

<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small">Hi Martin,<br><br></div>







<div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small">Thank you for your answer. `ccache` seems to be the default compiler front-end on the build server. There is no reference to `ccache` in any of Makefiles. <br>









<br></div><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small">You are right `ar` is in `binutils` and `binutils` seems to be installed on the server (my prev. email). However `ar` seems not to be in the PATH or there might be a bad symlink to it.<br>









</div><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small">- Mani <br><span><font color="#888888"><br>







</font></span></div></div><div class="gmail_extra"><span><font color="#888888">

<br clear="all"><div>Mani Monajjemi</div>
<br><br></font></span><div class="gmail_quote"><div><div>On Fri, Feb 21, 2014 at 2:43 AM, Martin Günther <span dir="ltr"><<a href="mailto:mguenthe@uos.de" target="_blank">mguenthe@uos.de</a>></span> wrote:<br>

</div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div>

Hi Mani,<br>
<br>
On Thu, 20 Feb 2014 18:21:14 -0800<br>
Mani Monajjemi <<a href="mailto:mani.monajjemi@gmail.com" target="_blank">mani.monajjemi@gmail.com</a>> wrote:<br>
<br>
> [...]<br>
<div>> `ar` is in `binutils` Ubuntu package<br>
</div>> [...]<br>
<div>><br>
> However, `ar` is still not found:<br>
><br>
> /usr/lib/ccache/ar: Command not found<br>
<br>
</div>`/usr/bin/ar` is in the binutils package, `/usr/lib/ccache/ar` is in no<br>
Debian package. (Also, installing ccache didn't set up that<br>
symlink on my machine). There's probably a problem in your makefiles;<br>
you shouldn't assume ccache is installed.<br>
<br>
Cheers,<br>
Martin<br>
<span><font color="#888888"><br>
--<br>
Dipl.-Inf. Martin Günther<br>
Universität Osnabrück<br>
Institut für Informatik<br>
Albrechtstr. 28  (Raum 31/503)<br>
D-49076 Osnabrück<br>
<br>
Fon: 0541 969 2434<br>
<a href="http://www.inf.uos.de/mguenthe/" target="_blank">http://www.inf.uos.de/mguenthe/</a><br>
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