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<p>For CentOS 8, there should be no difference between the ChimeraX
1.1 and ChimeraX 1.2 dependency on LLVM. There is no direct
dependency on LLVM. The dependency comes from ChimeraX's
dependency on CentOS 8's mesa-libOSMesa. No version number is
given for mesa-libOSMesa, so any version your system provides
should work. The version of LLVM needed by mesa-libOSMesa varies
depending on which version of CentOS 8 you have installed. On our
CentOS 8 build VM, it happens to be LLVM version 10. On a CentOS
Stream 8 machine I have access to, it is LLVM version 12. The
CentOS 8 ChimeraX 1.2 rpm installs on both.<br>
</p>
<p>So I believe the problem is something to do with your particular
setup. I hope I have given you enough clues to figure it out .</p>
<p> -- Greg<br>
</p>
<div class="moz-cite-prefix">On 7/5/2021 3:10 AM, Zhe Wang via
ChimeraX-users wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAPucnrjqQ7sPk6Oohk0XTjttaocQV4Qj0AWdmEW3fhyybrtkjg@mail.gmail.com">
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<div dir="ltr">Hi,
<div><br>
</div>
<div>We were trying to install ChimerX 1.2 on our Centos 8
system.</div>
<div>It seems like ChimeraX 1.2 asks for libLLVM with version 10
which is not a default package that built in the rpm. The
default one for CentOS 8 is version 9. <span style="color:rgb(23,43,77);font-family:-apple-system,system-ui,"Segoe UI",Roboto,Oxygen,Ubuntu,"Fira Sans","Droid Sans","Helvetica Neue",sans-serif;letter-spacing:-0.07px;white-space:pre-wrap">Centos 7 does not provide and not available in EPEL either. Could ChimeraX provide the corresponding library for centos 8 and 7?</span></div>
<div><span style="color:rgb(23,43,77);font-family:-apple-system,system-ui,"Segoe UI",Roboto,Oxygen,Ubuntu,"Fira Sans","Droid Sans","Helvetica Neue",sans-serif;letter-spacing:-0.07px;white-space:pre-wrap">
</span></div>
<div><span style="color:rgb(23,43,77);font-family:-apple-system,system-ui,"Segoe UI",Roboto,Oxygen,Ubuntu,"Fira Sans","Droid Sans","Helvetica Neue",sans-serif;letter-spacing:-0.07px;white-space:pre-wrap">Another question that I have is if the following is correct for ChimeraX 1.1: ChimeraX 1.1 is using the default <a href="http://libLLVM3.9-mesa.so" moz-do-not-send="true">libLLVM3.9-mesa.so</a> for centos 8. And for centos 7, you have ChimeraX 1,1 using the libOSMesa.so.8.0.0 which ChimeraX provided, as I see ChimeraX 1.1 works fine one both, but not 1.2.</span></div>
<div><span style="color:rgb(23,43,77);font-family:-apple-system,system-ui,"Segoe UI",Roboto,Oxygen,Ubuntu,"Fira Sans","Droid Sans","Helvetica Neue",sans-serif;letter-spacing:-0.07px;white-space:pre-wrap">
</span></div>
<div><span style="color:rgb(23,43,77);font-family:-apple-system,system-ui,"Segoe UI",Roboto,Oxygen,Ubuntu,"Fira Sans","Droid Sans","Helvetica Neue",sans-serif;letter-spacing:-0.07px;white-space:pre-wrap">Best, </span></div>
<div><span style="color:rgb(23,43,77);font-family:-apple-system,system-ui,"Segoe UI",Roboto,Oxygen,Ubuntu,"Fira Sans","Droid Sans","Helvetica Neue",sans-serif;letter-spacing:-0.07px;white-space:pre-wrap">Zhe</span></div>
</div>
<br>
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</blockquote>
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