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    <p>I uninstalled Cmake 2.20 and installed 2.19. Then I could make
      some progress. My build is now hanging after a series of the
      following messages. I mean really hanging; I have to blow away the
      process. Does anyone know what a PDB error is?<br>
    </p>
    <div class="moz-signature"><font size="3"><font face="monospace">[18/356]
          Linking CXX executable bin\llc.exe<br>
          FAILED: bin/llc.exe<br>
          cmd.exe /C "cd . && "C:\Program
          Files\CMake\bin\cmake.exe" -E vs_link_exe
          --intdir=tools\llc\CMakeFiles\llc.dir
          --rc=C:\PROGRA~2\WI3CF2~1\10\bin\100183~1.0\x86\rc.exe
          --mt=C:\PROGRA~2\WI3CF2~1\10\bin\100183~1.0\x86\mt.exe
          --manifests  --
C:\PROGRA~2\MICROS~2\2019\COMMUN~1\VC\Tools\MSVC\1428~1.293\bin\Hostx86\x86\link.exe
          /nologo @CMakeFiles\llc.rsp  /out:bin\llc.exe
          /implib:lib\llc.lib /pdb:bin\llc.pdb /version:0.0 /machine:X86
          /STACK:10000000 /debug /INCREMENTAL /subsystem:console 
          && cd ."<br>
          LINK Pass 1: command
"C:\PROGRA~2\MICROS~2\2019\COMMUN~1\VC\Tools\MSVC\1428~1.293\bin\Hostx86\x86\link.exe
          /nologo @CMakeFiles\llc.rsp /out:bin\llc.exe
          /implib:lib\llc.lib /pdb:bin\llc.pdb /version:0.0 /machine:X86
          /STACK:10000000 /debug /INCREMENTAL /subsystem:console
          /MANIFEST
          /MANIFESTFILE:tools\llc\CMakeFiles\llc.dir/intermediate.manifest
          tools\llc\CMakeFiles\llc.dir/manifest.res" failed (exit code
          1318) with the following output:<br>
          LINK : the 32-bit linker
(C:\PROGRA~2\MICROS~2\2019\COMMUN~1\VC\Tools\MSVC\1428~1.293\bin\Hostx86\x86\link.exe)
          ran out of heap space and is going to restart linking with a
          64-bit linker<br>
          LINK : fatal error LNK1318: Unexpected PDB error; RPC (23)
          '(0x000006BA)'<br>
          [19/356] Linking CXX executable bin\bugpoint.exe<br>
          FAILED: bin/bugpoint.exe<br>
          cmd.exe /C "cd . && "C:\Program
          Files\CMake\bin\cmake.exe" -E vs_link_exe
          --intdir=tools\bugpoint\CMakeFiles\bugpoint.dir
          --rc=C:\PROGRA~2\WI3CF2~1\10\bin\100183~1.0\x86\rc.exe
          --mt=C:\PROGRA~2\WI3CF2~1\10\bin\100183~1.0\x86\mt.exe
          --manifests  --
C:\PROGRA~2\MICROS~2\2019\COMMUN~1\VC\Tools\MSVC\1428~1.293\bin\Hostx86\x86\link.exe
          /nologo @CMakeFiles\bugpoint.rsp  /out:bin\bugpoint.exe
          /implib:lib\bugpoint.lib /pdb:bin\bugpoint.pdb /version:0.0
          /machine:X86 /STACK:10000000 /debug /INCREMENTAL
          /subsystem:console  && cd ."<br>
          LINK Pass 1: command
"C:\PROGRA~2\MICROS~2\2019\COMMUN~1\VC\Tools\MSVC\1428~1.293\bin\Hostx86\x86\link.exe
          /nologo @CMakeFiles\bugpoint.rsp /out:bin\bugpoint.exe
          /implib:lib\bugpoint.lib /pdb:bin\bugpoint.pdb /version:0.0
          /machine:X86 /STACK:10000000 /debug /INCREMENTAL
          /subsystem:console /MANIFEST
/MANIFESTFILE:tools\bugpoint\CMakeFiles\bugpoint.dir/intermediate.manifest
          tools\bugpoint\CMakeFiles\bugpoint.dir/manifest.res" failed
          (exit code 1318) with the following output:<br>
          LINK : bin\bugpoint.exe not found or not built by the last
          incremental link; performing full link<br>
          LINK : the 32-bit linker
(C:\PROGRA~2\MICROS~2\2019\COMMUN~1\VC\Tools\MSVC\1428~1.293\bin\Hostx86\x86\link.exe)
          ran out of heap space and is going to restart linking with a
          64-bit linker<br>
          LINK : fatal error LNK1318: Unexpected PDB error; RPC (23)
          '(0x000006BA)'<br>
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