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<base href="https://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - <cmath>: C++11 templates disabled (?) on sunos"
href="https://llvm.org/bugs/show_bug.cgi?id=28506">28506</a>
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<th>Summary</th>
<td><cmath>: C++11 templates disabled (?) on sunos
</td>
</tr>
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<th>Product</th>
<td>libc++
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>All Bugs
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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</tr>
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<th>Reporter</th>
<td>mgorny@gentoo.org
</td>
</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org, mclow.lists@gmail.com
</td>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>I'm attempting to build new LLVM using current nightly pathCC (w/ libcxx
backend) on openindiana. I'm getting the following error:
/root/mgorny-test/enzo-suite/ekopath/psllvm/lib/DebugInfo/Symbolize/DIPrinter.cpp:52:41:
error:
call to 'log10' is ambiguous
size_t MaxLineNumberWidth = std::ceil(std::log10(LastLine));
^~~~~~~~~~
/usr/include/iso/math_iso.h:81:15: note: candidate function
extern double log10 __P((double));
^
/usr/include/iso/math_iso.h:179:15: note: candidate function
inline float log10(float __X) { return __log10f(__X); }
^
/usr/include/iso/math_iso.h:209:21: note: candidate function
inline long double log10(long double __X) { return __log10l(__X); }
^
1 error generated.
It seems that LLVM has started relying on the C++11 integral definition of
log10(). However, the one provided in libcxx is #ifndef'ed for __sun__. I guess
this happens because system math.h is including iso/math_iso.h which has some
C++ definitions aside the usual C functions. Sadly, those definitions lack
support for C++11.</pre>
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