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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Inconsistency in symbol visibility for explicit template instantiation between cl.exe and clang-cl.exe"
href="https://llvm.org/bugs/show_bug.cgi?id=29137">29137</a>
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<th>Summary</th>
<td>Inconsistency in symbol visibility for explicit template instantiation between cl.exe and clang-cl.exe
</td>
</tr>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>3.9
</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>C++
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>6yearold@gmail.com
</td>
</tr>
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<th>CC</th>
<td>dgregor@apple.com, llvm-bugs@lists.llvm.org
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>The code in question is
<a href="https://lxr.kde.org/source/frameworks/kcoreaddons/src/lib/util/kuser.h">https://lxr.kde.org/source/frameworks/kcoreaddons/src/lib/util/kuser.h</a> on line
0114
and
<a href="https://lxr.kde.org/source/frameworks/kcoreaddons/src/lib/util/kuser_win.cpp">https://lxr.kde.org/source/frameworks/kcoreaddons/src/lib/util/kuser_win.cpp</a> on
line 0731
Compiling it with cl.exe works fine, while clang-cl.exe gives linking errors:
[ 22%] Linking CXX shared library ..\..\bin\KF5CoreAddons.dll
Creating library ..\..\lib\KF5CoreAddons.lib and object
..\..\lib\KF5CoreAddons.exp
kshell.cpp.obj : error LNK2019: unresolved external symbol "protected: struct
KUserOrGroupId<void *> & __cdecl KUserOrGroupId<void *>::operator=(struct
KUserOrGroupId<void *> const &)" (??4?$KUserOrGroupId@PEAX@@IEAAAEAU0@AEBU0@@Z)
referenced in function "public: struct KUserId & __cdecl
KUserId::operator=(struct KUserId const &)" (??4KUserId@@QEAAAEAU0@AEBU0@@Z)
..\..\bin\KF5CoreAddons.dll : fatal error LNK1120: 1 unresolved externals
I could try to come up with a lesser testcase if needed.</pre>
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</p>
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