[Bug 629209] Update mingw32-runtime to 3.18

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https://bugzilla.redhat.com/show_bug.cgi?id=629209

John Stebbins <stebbins at jetheaddev.com> changed:

           What    |Removed                     |Added
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                 CC|                            |stebbins at jetheaddev.com

--- Comment #22 from John Stebbins <stebbins at jetheaddev.com> 2010-09-11 11:59:49 EDT ---
(In reply to comment #4)
> mingw32-gcc doesn't appear to build against mingw32-runtime-3.18, see
> http://koji.fedoraproject.org/koji/getfile?taskID=2449090&name=build.log
> 
> Creating library file:
> .libs/libgfortran.dll.a/builddir/build/BUILD/gcc-4.5.1/build/./gcc/libgcc_eh.a(unwind-sjlj.o):
> In function `__gthread_key_create':
> /builddir/build/BUILD/gcc-4.5.1/build/i686-pc-mingw32/libgcc/../../../libgcc/../gcc/gthr-win32.h:582:
> undefined reference to `_TlsAlloc at 0'

I ran across a what appears to be the same problem when compiling a library
with mingw64 which is available here (which is also gcc-4.5)
http://www.mail-archive.com/mingw@lists.fedoraproject.org/msg00135.html

After a little experimentation, I discovered that the code that provokes it is
a function that uses varargs.  e.g.
int my_printf( char *fmt, ... )
{
}

Removing the function allowed the link to succeed.  
Also, leave the function in and link with g++ instead of gcc succeeds.

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