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<base href="http://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Clang is redefining std::string's _S_construct at -Os"
href="http://llvm.org/bugs/show_bug.cgi?id=19222">19222</a>
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<th>Summary</th>
<td>Clang is redefining std::string's _S_construct at -Os
</td>
</tr>
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<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Windows NT
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>new bugs
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>heavenandhell171@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
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<pre>I'm having problems with wxWidgets (static library) built with Clang (trunk +
Mingw-w64 4.8.2). The build of wxWidgets went fine, the problem is when i try
to link against it.
The wxWidgets -Os build doesn't work with static libstdc++. I get a "multiple
definition of `char* std::string::_S_construct<char*>(char*, char*,
std::allocator<char> const&, std::forward_iterator_tag)'" error.
The -O2/-O3 build works fine.
Here's a litle test case:
$ cat > Test.cpp
#include <string>
#include <sstream>
// This is a stripped version of the wxWidgets method.
std::string FromCDouble(double val, int precision) {
std::ostringstream os;
os << val;
return os.str();
}
int main() {
return 0;
}
$ clang++ -Os Test.cpp -std=c++11 -static
c:/dev/mingw32/bin/../lib/gcc/i686-w64-mingw32/4.8.2/../../../../lib\libstdc++.a(string-inst.o):(.text$_ZNSs12_S_constructIPcEES0_T_S1_RKSaIcESt20forward_iterator_tag[__ZNSs12_S_constructIPcEES0_T_S1_RKSaIcESt20forward_iterator_tag]+0x0):
multiple definition of `char* std::string::_S_construct<char*>(char*, char*,
std::allocator<char> const&, std::forward_iterator_tag)'
C:\Dev\MSys2\tmp\Test2-525d5d.o:(.text[__ZNSs12_S_constructIPcEES0_T_S1_RKSaIcESt20forward_iterator_tag]+0x0):
first defined here
collect2.exe: error: ld returned 1 exit status
clang++.exe: error: linker (via gcc) command failed with exit code 1 (use -v to
see invocation)</pre>
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