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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Using wrong compiler when linking Lsan-x86_64-Test (and maybe elsewhere)"
href="http://llvm.org/bugs/show_bug.cgi?id=16272">16272</a>
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<th>Summary</th>
<td>Using wrong compiler when linking Lsan-x86_64-Test (and maybe elsewhere)
</td>
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<th>Product</th>
<td>compiler-rt
</td>
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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>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>compiler-rt
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>andyg1001@hotmail.co.uk
</td>
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
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<p>
<div>
<pre>When compiling compiler-rt using cmake, the just-built version of clang is used
to compile source files (e.g. lsan_dummy_unittest.cc.x86_64.o), but when it
comes to linking (e.g. Lsan-x86_64-Test), the compiler used for linking is the
system one.
On my system, this causes the build to fail on linking Lsan-x86_64-Test with
"undefined reference to `std::ios_base::Init::Init()'" since the source file is
compiled against libstdc++11 but being linked against libc++11.
I expect there is a simple solution, i.e. to ensure that the same compiler is
used for compiling and for linking, but I am not familiar with compiler-rt so
can't provide a fix myself.
I also don't know whether this problem occurs elsewhere -- it may just be
fortunate that the conflict arises here!</pre>
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