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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Have you tried the versions of jasper and libpng that are in the EPEL repository? It should be as simple as enabling EPEL, and doing a
<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"># yum install jasper-libs libpng libpng-devel<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I believe I compiled WPS/WRF using these versions, on CentOS x86_64.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Bart<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext"> wrf-users-bounces@ucar.edu [mailto:wrf-users-bounces@ucar.edu]
<b>On Behalf Of </b>wxtofly<br>
<b>Sent:</b> Tuesday, December 13, 2011 11:33 PM<br>
<b>To:</b> Hein Zelle; WRF Users; WRF DA; WRF Users<br>
<b>Subject:</b> [Wrf-users] Resolved: Re: WPS 3.3.1 OK, but no jasper no png<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I reinstalled all fedora libz libpng and jasper. <br>
I got this:<br>
./ngl/libg2_4.a(dec_png.o): In function `dec_png_':<br>
dec_png.c:(.text+0x148): undefined reference to `png_set_longjmp_fn' <br>
<br>
<br>
I finally compiled and installed those three libraries (<a href="http://www.mmm.ucar.edu/wrf_tmp/WRF_OnLineTutorial/SOURCE_DATA/libs_for_wps.tar">http://www.mmm.ucar.edu/wrf_tmp/WRF_OnLineTutorial/SOURCE_DATA/libs_for_wps.tar</a>)<br>
to my WPS working directory and adjusted all the configure paths to them.<br>
I then succeeded in compiling ungrib with libpng and jasper.<br>
<br>
<br>
It seems that the new libpng libraries ( >1.4 )are not compatible with WPSV3.3.1 as distributed.<br>
<br>
A patch by someone who knows what they are doing along the lines of the one described at:<br>
<br>
<a href="http://stackoverflow.com/questions/5190554/unresolved-external-png-set-longjmp-fn-in-libpng">http://stackoverflow.com/questions/5190554/unresolved-external-png-set-longjmp-fn-in-libpng</a><br>
<br>
would be a welcome thing.<br>
<br>
TJ Olney <o:p></o:p></p>
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