<span style=" font-size:10pt;font-family:sans-serif">Hi Gabriele,</span><br><br><span style=" font-size:10pt;font-family:sans-serif">You can set the

-DGCC_INSTALL_PREFIX to point to the folder with the desired version of

GCC.</span><br><br><span style=" font-size:10pt;font-family:sans-serif">The GCC folder

you want to point to is the one containing the lib and include folders.

I use GCC 6.4. <span style=" font-size:10pt;font-family:sans-serif">Thanks a lot, <span style=" font-size:10pt;font-family:sans-serif">--Doru <span style=" font-size:10pt;font-family:sans-serif"> <span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">From:

       </span><span style=" font-size:9pt;font-family:sans-serif">"Jost,

Gabriele \(ARC-TNC\)\[Supersmith\] via Openmp-dev" <openmp-dev@lists.llvm.org> <span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">To:

       </span><span style=" font-size:9pt;font-family:sans-serif">"openmp-dev@lists.llvm.org"

<openmp-dev@lists.llvm.org></span><br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">Date:

       </span><span style=" font-size:9pt;font-family:sans-serif">11/27/2019

03:17 PM</span><br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">Subject:

       </span><span style=" font-size:9pt;font-family:sans-serif">[EXTERNAL]

[Openmp-dev] clang 9.0.0 + libstdc++ problem</span><br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">Sent

by:        </span><span style=" font-size:9pt;font-family:sans-serif">"Openmp-dev"

<openmp-dev-bounces@lists.llvm.org></span><br><hr noshade><br><br><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">Hello

llvm developers!</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">I

am trying to build the OpenMP runtime with clang 9.0.0. The clang compiler

fails to find the libstdc++ library.</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">I

specified the pathname, but it does not help.</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">I

had to resort to configuring like this:</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">cmake

-DCMAKE_BUILD_TYPE=Release \</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">-DCMAKE_INSTALL_PREFIX="/nobackupnfs2/clang-install"\</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">-DCMAKE_C_COMPILER=/nobackupnfs2/clang-install/bin/clang\</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">-DCMAKE_CXX_COMPILER=/nobackupnfs2/clang-install/bin/clang++\</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">-DLIBOMPTARGET_DEP_LIBELF_LIBRARIES:FILEPATH=/usr/lib64/libelf.so.1

\</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">-DLLVM_LIBSTDCXX:FILEPATH=/usr/lib64/libstdc++.so.6\</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">-DLLVM_TEMPORARILY_ALLOW_OLD_TOOLCHAIN=ON\</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">-DCLANG_OPENMP_NVPTX_DEFAULT_ARCH=sm_60

\</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">-DLIBOMPTARGET_NVPTX_COMPUTE_CAPABILITIES=35,60,70

../llvm-9.0.0.src</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"> </span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">Is

there a way to tell clang to use the correct library? It complains that

the library is too old, but I think it is because it does not find the

right one.</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"> </span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">Gabriele

Jost</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"> </span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt">************************************************************************</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt">Gabriele

Jost       NASA Ames Research Center<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt">Email:

Gabriele.Jost@nasa.gov    Mail Stop 258-6</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt">Work

Phone: (650) 604-0468     Bldg. 258, Rm. 232-4</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt">Scientific

& HPC Application        P.O. Box 1</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt">Development/Optimization

        Moffett Field, CA 94035-0001</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt">************************************************************************</span><tt><span style=" font-size:10pt">_______________________________________________<br>Openmp-dev mailing list<br>Openmp-dev@lists.llvm.org<br></span></tt><a href="https://lists.llvm.org/cgi-bin/mailman/listinfo/openmp-dev"><tt><span style=" font-size:10pt">https://lists.llvm.org/cgi-bin/mailman/listinfo/openmp-dev</span></tt></a><tt><span style=" font-size:10pt"><br></span></tt></p><p style="margin-top:0px;margin-Bottom:0px"></p><p style="margin-top:0px;margin-Bottom:0px"></p><BR>