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    I did some more investigation of the size_t size error. I
    misunderstood what was happening. It turns out that size_t is
    already defined before my prefix header is included. I added the
    following static_asserts to the font of the header:<br>
    <br>
    <font face="Courier New, Courier, monospace">static_assert(sizeof(size_t)
      != 4, "sizeof(size_t) == 4");<br>
      static_assert(sizeof(size_t) != 8, "sizeof(size_t) == 8");<br>
    </font><br>
    The first static_assert fires:<br>
    <br>
    <font face="Courier New, Courier, monospace">1>Build started
      9/30/2014 2:29:54 PM.<br>
      1>clang-cl.exe : warning : argument unused during compilation:
      '/Gm-'<br>
      1>clang-cl.exe : warning : argument unused during compilation:
      '/GS'<br>
      1>clang-cl.exe : warning : argument unused during compilation:
      '/fp:precise'<br>
      1>clang-cl.exe : warning : argument unused during compilation:
      '/FdDebug\x64\vc120.pdb'<br>
      1>clang-cl.exe : warning : argument unused during compilation:
      '/Gd'<br>
      1>  In file included from <built-in>:187:<br>
      1>  In file included from <command line>:19:<br>
      1>[elided header file name](9,1): error : static_assert failed
      "sizeof(size_t) == 4"<br>
      1>  static_assert(sizeof(size_t) != 4, "sizeof(size_t) == 4");<br>
      1>  ^             ~~~~~~~~~~~~~~~~~~~<br>
    </font><br>
    Later on, I get an error saying that crtdefs.h is trying to redefine
    size_t from an unsigned int to an unsigned long long...<br>
    <br>
    Perhaps one of my preprocessor defines is causing these errors:<br>
    <br>
    <font face="Courier New, Courier, monospace">WIN32<br>
      _DEBUG<br>
      _WINDOWS<br>
      _USRDLL<br>
      _SCL_SECURE_NO_WARNINGS<br>
      _CRT_SECURE_NO_WARNINGS<br>
      _WIN64<br>
      _x86_64_ = 1<br>
    </font><br>
    (I added the "SECURE_NO_WARNINGS" defines when I ported an earlier
    version of this code to VS 2005; don't remember why any more...)<br>
    (There are a couple of other defines that are specific to the DLL
    I'm trying to build)<br>
    <br>
    Regards,<br>
    Eric Mader<br>
    <br>
    <div class="moz-cite-prefix">On 9/30/14, 1:01 PM, Eric Mader wrote:<br>
    </div>
    <blockquote cite="mid:542B3660.6090109@gmx.us" type="cite">
      <meta content="text/html; charset=UTF-8" http-equiv="Content-Type">
      Hi Reid,<br>
      <br>
      I copied the x64 toolsets by hand; they got installed to
      C:\Program Files (x86)\LLVM\tools\msbuild\x64; they just didn't
      get moved correctly by install.bat.<br>
      <br>
      I just verified that the LLVM-vs2013 toolset.props is correct.<br>
      <br>
      If it is a bitness problem, perhaps I'm failing to define
      something correctly?<br>
      <br>
      Regards,<br>
      Eric<br>
      <br>
      <div class="moz-cite-prefix">On 9/30/14, 11:29 AM, Reid Kleckner
        wrote:<br>
      </div>
      <blockquote
cite="mid:CACs=tyJqC2gxDtTNO_GBDOTFmBE1bf_M9NScZDpVMfUtREBt_Q@mail.gmail.com"
        type="cite">
        <div dir="ltr">This looks like some kind of bitness conflict. If
          you are building for win64, are you sure clang is getting the
          -m64 argument?
          <div><br>
          </div>
          <div>I recall that you copied the win32 platform toolset xml
            files over by hand, and I don't think they will have the
            correct flags. If you see this line in the x64 toolset.props
            file, replace -m32 with -m64 and try again:</div>
          <div><AdditionalOptions>-m32 -fmsc-version=1700
            %(AdditionalOptions)</AdditionalOptions><br>
          </div>
          <div><br>
          </div>
          <div>In the meantime, I think Hans is trying to fix the
            installation of those xml files and hopefully that will fix
            issues for other users going forwards.</div>
        </div>
        <div class="gmail_extra"><br>
          <div class="gmail_quote">On Tue, Sep 30, 2014 at 1:55 PM, Eric
            Mader <span dir="ltr"><<a moz-do-not-send="true"
                href="mailto:emader@gmx.us" target="_blank">emader@gmx.us</a>></span>
            wrote:<br>
            <blockquote class="gmail_quote" style="margin:0 0 0
              .8ex;border-left:1px #ccc solid;padding-left:1ex">
              <div bgcolor="#FFFFFF" text="#000000"> I'm getting compile
                errors because size_t is getting redefined. My "forced
                include file" starts with:<br>
                <br>
                <font face="Courier New, Courier, monospace">#if
                  BUILDING_FOR_WINDOWS<br>
                  #define NOMINMAX<br>
                  <br>
                  /* deal with the fact that windef.h also defines BOOL
                  */<br>
                  #define BOOL WINBOOL<br>
                  <br>
                  #include <windows.h><br>
                  #include <intrin.h><br>
                  <br>
                  #undef BOOL<br>
                  #endif<br>
                </font><br>
                Looking at the preprocessor expansion of a typical .cpp
                file, I see that crtdefs.h defines size_t like this:<br>
                <br>
                <font face="Courier New, Courier, monospace">typedef
                  unisgned __int64 size_t;<br>
                </font><br>
                Later on, <LLVM>\lib\clang\3.6.0\includes\stddef.h
                defines it as:<br>
                <br>
                <font face="Courier New, Courier, monospace">typedef
                  unsigned int size_t;<br>
                </font><br>
                Is there some other magic I need to do to get these to
                work?<br>
                <br>
                I'm also seeing a bunch of errors like this having to do
                with intrinsics:<br>
                <br>
                <font face="Courier New, Courier, monospace">1>  In
                  file included from C:\Program Files (x86)\Microsoft
                  Visual Studio 12.0\VC\include\algorithm:6:<br>
                  1>  In file included from C:\Program Files
                  (x86)\Microsoft Visual Studio
                  12.0\VC\include\xmemory:6:<br>
                  1>  In file included from C:\Program Files
                  (x86)\Microsoft Visual Studio
                  12.0\VC\include\xmemory0:909:<br>
                  1>  In file included from C:\Program Files
                  (x86)\LLVM\msbuild-bin\..\lib\clang\3.6.0\include\intrin.h:34:<br>
                  1>  In file included from C:\Program Files
                  (x86)\LLVM\msbuild-bin\..\lib\clang\3.6.0\include\x86intrin.h:29:<br>
                  1>  In file included from C:\Program Files
                  (x86)\LLVM\msbuild-bin\..\lib\clang\3.6.0\include\immintrin.h:28:<br>
                  1>C:\Program Files
                  (x86)\LLVM\msbuild-bin\..\lib\clang\3.6.0\include\mmintrin.h(52,40):
                  error : cannot initialize a parameter of type
                  '__attribute__((__vector_size__(2 * sizeof(int))))
                  int' (vector of 2 'int' values) with an rvalue of type
                  '__v2si' (aka 'int')<br>
                  1>      return
                  __builtin_ia32_vec_ext_v2si((__v2si)__m, 0);<br>
                  1>                                        
                  ^~~~~~~~~~~<br>
                </font><br>
                I suspect that these might be caused by the same thing
                as the size_t problem...<br>
                <br>
                Regards,<br>
                Eric Mader<br>
                <br>
                <br>
                <br>
              </div>
              <br>
              _______________________________________________<br>
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              <br>
            </blockquote>
          </div>
          <br>
        </div>
      </blockquote>
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      <pre wrap="">_______________________________________________
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</pre>
    </blockquote>
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