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<base href="https://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW " title="NEW --- - attempted to build llvm again using formerly built llvm" href="https://urldefense.proofpoint.com/v2/url?u=https-3A__llvm.org_bugs_show-5Fbug.cgi-3Fid-3D23755&d=AwMBaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=pF93YEPyB-J_PERP4DUZOJDzFVX5ZQ57vQk33wu0vio&m=KwzHWJgOIjbKl6b1tT4M6niUzlBwNZtIUYKYWyoIhvw&s=JySd1NrbfHS9T3waiqcMZe1vSSYmBLhnofGomQQ5vYg&e=">23755</a>
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<th>Summary</th>
<td>attempted to build llvm again using formerly built llvm
</td>
</tr>
<tr>
<th>Product</th>
<td>new-bugs
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>new bugs
</td>
</tr>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>goochmi@gmail.com
</td>
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>downloaded sources for 3.6.1
extracted the tarballs
clang extra tools was symlinked into the clang source tree as tools/extra
clang was symlinked into llvm source tree as tools/clang
lld was symlinked into llvm source tree as tools/lld
compiler-rt was symlinked into llvm source tree as projects/compiler-rt
libcxx was symlinked into llvm source tree as projects/libcxx
libcxxabi was symlinked into llvm source tree as projects/libcxxabi
I built this once using GCC and libstdc++.
I was hoping to build it again using the now available clang/clang++ and
libc++/libc++abi, but when I attempt this, various executable linking stages
fail claiming they can't find __cxa_guard_acquire, __cxa_guard_release, and
__cxa_pure_virtual
this seems to indicate something isn't being linked against libc++, or that
libc++ lacks those symbols/targets for some reason.
it is ENTIRELY possible that I did something incorrectly with my former build
or setup or that I am doing something incorrectly this time.
the command for cmake would be something like this correct?:
cmake /path/to/llvm/source/tree \
-DCMAKE_INSTALL_PREFIX=/UCHC/HPC/Gooch/biotoolmodules/llvm_suite/3.6.1 \
-DCMAKE_C_COMPILER=/UCHC/HPC/Gooch/biotoolmodules/llvm_suite/3.6.1/bin/clang \
-DCMAKE_CXX_COMPILER=/UCHC/HPC/Gooch/biotoolmodules/llvm_suite/3.6.1/bin/clang++
\
-DLLVM_ENABLE_LIBCXX=1 \
-DLIBCXX_CXX_ABI=libcxxabi
if not, what am I missing?</pre>
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