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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - unresolved external public: virtual __thiscall ... `vbase destructor'(void)""
href="http://llvm.org/bugs/show_bug.cgi?id=17823">17823</a>
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<th>Summary</th>
<td>unresolved external public: virtual __thiscall ... `vbase destructor'(void)"
</td>
</tr>
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<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Windows NT
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>-New Bugs
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>james.baker@bullochtech.com
</td>
</tr>
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>In some circumstances I get linker errors starting sometime since Saturday
November 2.
LongField is a subclass of another class called Field.
Field has a virtual destructor, but LongField does not declare or define a
destructor.
Removing the virtual keyword from the parent class' destructor solves the
issue,
However, it compiled and linked on a version I build of clang/llvm on Saturday
as well as in Visual C++, and Embarcadero C++ with the destructor of the parent
class set as virtual.
Here is a sample of the link output:
INPUT.LIB(field.obj) : error LNK2001: unresolved external symbol "public:
virtual __thiscall LongField::`vbase destructor'(void)" (??_DLongField@@UAE@XZ)</pre>
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