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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - dllimport conflicts with exclude_from_explicit_instantiation."
href="https://bugs.llvm.org/show_bug.cgi?id=41018">41018</a>
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<th>Summary</th>
<td>dllimport conflicts with exclude_from_explicit_instantiation.
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<th>Product</th>
<td>clang
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<th>Version</th>
<td>trunk
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<th>Hardware</th>
<td>PC
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
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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>C++
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>eric@efcs.ca
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<th>CC</th>
<td>blitzrakete@gmail.com, dgregor@apple.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
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<pre>When both dllimport and exclude_from_explicit_instantiation are passed, Clang
still expects the function to have a externally available definition. But this
is not the case.
For example: <a href="https://godbolt.org/z/gKOHCk">https://godbolt.org/z/gKOHCk</a>
This leads to linker errors because of undefined symbols.
I think one approach would be to make Clang not inherit `dllimport` attributes
on functions declared with exclude_from_explicit_instantiation. When dllimport
is applied directly, we could emit an error for incompatible attributes.</pre>
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