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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 --- - (mingw) undefined reference to `__chkstk_ms'"
href="https://llvm.org/bugs/show_bug.cgi?id=24395">24395</a>
</td>
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<tr>
<th>Summary</th>
<td>(mingw) undefined reference to `__chkstk_ms'
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>3.7
</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>release blocker
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>-New Bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>t.poechtrager@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>I am getting the following linker errors when I am tryink to link a MinGW
project on Linux with Clang.
config.o:(.text+0x29a): undefined reference to `_alloca'
/usr/i686-w64-mingw32/lib/libmingw32.a(lib32_libmingw32_a-pseudo-reloc.o): In
function `pei386_runtime_relocator':
/build/mingw-w64-crt/src/mingw-w64-v4.0.2/mingw-w64-crt/crt/pseudo-reloc.c:476:
undefined reference to `__chkstk_ms'
/usr/i686-w64-mingw32/lib/libmingwex.a(lib32_libmingwex_a-mingw_vfscanf.o): In
function `_mingw_vfscanf':
/build/mingw-w64-crt/src/mingw-w64-v4.0.2/mingw-w64-crt/stdio/mingw_vfscanf.c:1614:
undefined reference to `__chkstk_ms'
/usr/i686-w64-mingw32/lib/libmingwex.a(lib32_libmingwex_a-mingw_vfscanf.o): In
function `_mingw_vsscanf':
/build/mingw-w64-crt/src/mingw-w64-v4.0.2/mingw-w64-crt/stdio/mingw_vfscanf.c:1623:
undefined reference to `__chkstk_ms'
/usr/i686-w64-mingw32/lib/libmingwex.a(lib32_libmingwex_a-mingw_pformat.o): In
function `_pformat_emit_radix_point':
/build/mingw-w64-crt/src/mingw-w64-v4.0.2/mingw-w64-crt/stdio/mingw_pformat.c:1183:
undefined reference to `__chkstk_ms'
/usr/i686-w64-mingw32/lib/libmingwex.a(lib32_libmingwex_a-mingw_pformat.o): In
function `_pformat_int':
/build/mingw-w64-crt/src/mingw-w64-v4.0.2/mingw-w64-crt/stdio/mingw_pformat.c:685:
undefined reference to `__chkstk_ms'
/usr/i686-w64-mingw32/lib/libmingwex.a(lib32_libmingwex_a-mingw_pformat.o):/build/mingw-w64-crt/src/mingw-w64-v4.0.2/mingw-w64-crt/stdio/mingw_pformat.c:860:
more undefined references to `__chkstk_ms' follow
clang-3.7: error: linker command failed with exit code 1 (use -v to see
invocation)
>From comparing gcc's and clang's linker flags it looks like -lgcc went missing.
Clang:
-ldl -lconfig -lGeoIP -lenet -lz -lws2_32 -lwinmm -lshlwapi -lstdc++
-lmingw32 -lgcc_s -lmoldname -lmingwex -lmsvcrt -lpthread -ladvapi32
-lshell32 -luser32 -lkernel32 -lmingw32 -lgcc_s -lmoldname -lmingwex
-lmsvcrt /usr/lib/gcc/i686-w64-mingw32/5.2.0/crtend.o
GCC:
-ldl -lconfig -lGeoIP -lenet -lz -lws2_32 -lwinmm -lshlwapi -lstdc++
-lmingw32 -lgcc_s --> -lgcc <-- -lmoldname -lmingwex -lmsvcrt -lpthread
-ladvapi32
-lshell32 -luser32 -lkernel32 -lmingw32 -lgcc_s --> -lgcc <-- -lmoldname
-lmingwex
-lmsvcrt /usr/lib/gcc/i686-w64-mingw32/5.2.0/crtend.o
$ clang --version
clang version 3.7.0 (branches/release_37 244340)</pre>
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