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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - LLVM 11.0.0 always rebuilds due to VCS revision"
href="https://bugs.llvm.org/show_bug.cgi?id=48386">48386</a>
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<th>Summary</th>
<td>LLVM 11.0.0 always rebuilds due to VCS revision
</td>
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<th>Product</th>
<td>Build scripts
</td>
</tr>
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<th>Version</th>
<td>11.0
</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
</td>
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<th>Component</th>
<td>cmake
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>hahnjo@hahnjo.de
</td>
</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<p>
<div>
<pre>When building LLVM 11.0.0 from the monorepo source code, I always get a rebuild
due to target llvm_vcsrevision_h that generates VCSRevision.h and
__FakeVCSRevision.h. However, the latter doesn't exist so 'make' always
rebuilds that target and all others that depend on it. Touching
include/llvm/Support/__FakeVCSRevision.h (with empty content) avoids the
rebuild, but this should be fixed in CMake since releases are mostly not build
from a VCS.</pre>
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