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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - llvm-config --system-libs reports absolute path for zlib without rpath"
href="https://bugs.llvm.org/show_bug.cgi?id=44780">44780</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>llvm-config --system-libs reports absolute path for zlib without rpath
</td>
</tr>
<tr>
<th>Product</th>
<td>Build scripts
</td>
</tr>
<tr>
<th>Version</th>
<td>10.0
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>cmake
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>andrew@ziglang.org
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>Similar to <a class="bz_bug_link
bz_status_NEW "
title="NEW - llvm-config --system-libs prints entire libxml2 path"
href="show_bug.cgi?id=44179">https://bugs.llvm.org/show_bug.cgi?id=44179</a>
9.0.1 behavior:
$ llvm-config --system-libs
-lz -lrt -ldl -lpthread -lm
10.0.0rc1 behavior:
$ llvm-config --system-libs
/nix/store/a3q9zl42d0hmgwmgzwkxi5qd88055fh8-zlib-1.2.11/lib/libz.so -lrt -ldl
-lpthread -lm
This ends up going onto the linker line for LLD, producing a binary like this:
[nix-shell:~/tmp/zig/build-llvm10-release]$ ldd
/home/andy/tmp/zig/zig-cache/o/39NGPp09af-0J9UEs7IabCuJBpR-9JHgtGfNslZiZIiA6j-mQbVfX1mISEjZIn7Y/test
linux-vdso.so.1 (0x00007ffd68593000)
libz.so.1 => not found
libc.so.6 =>
/nix/store/aag9d1y4wcddzzrpfmfp9lcmc7skd7jk-glibc-2.27/lib/libc.so.6
(0x00007f873f1e2000)
libm.so.6 =>
/nix/store/aag9d1y4wcddzzrpfmfp9lcmc7skd7jk-glibc-2.27/lib/libm.so.6
(0x00007f873f04c000)
libpthread.so.0 =>
/nix/store/aag9d1y4wcddzzrpfmfp9lcmc7skd7jk-glibc-2.27/lib/libpthread.so.0
(0x00007f873f02b000)
libdl.so.2 =>
/nix/store/aag9d1y4wcddzzrpfmfp9lcmc7skd7jk-glibc-2.27/lib/libdl.so.2
(0x00007f873f026000)
librt.so.1 =>
/nix/store/aag9d1y4wcddzzrpfmfp9lcmc7skd7jk-glibc-2.27/lib/librt.so.1
(0x00007f873f01c000)
/nix/store/aag9d1y4wcddzzrpfmfp9lcmc7skd7jk-glibc-2.27/lib/ld-linux-x86-64.so.2
=>
/nix/store/aag9d1y4wcddzzrpfmfp9lcmc7skd7jk-glibc-2.27/lib64/ld-linux-x86-64.so.2
(0x00007f873f39a000)
(notice the "libz.so.1 => not found")
This issue would be resolved if --system-libs also reported the rpath for
libz.so, or if it reported `-lz` like it did in llvm 9.
I believe the related patch is <a href="https://reviews.llvm.org/D70764">https://reviews.llvm.org/D70764</a>.</pre>
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