title: cl.exe installed but not found
body: <p>I've looked at the other questions on this, all say install visual studio with c++, I have done this - 2017 version.
  I'm trying to build pypoisson in python3 which requires the c++ complier, I get this error:</p>
  
  <pre><code>cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -IC:\Users\garyn\PycharmProjects\pointcloudprocessor\venv\lib\site-packages\numpy\core\include -IC:\Users\garyn\PycharmProjects\pointcloudprocessor\venv\include "-IC:\Pr
  ogram Files\Python\Python37\include" "-IC:\Program Files\Python\Python37\include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.15.26726\ATLMFC\include" "-IC:\Program Files (x8
  6)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.15.26726\include" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.6.1\include\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.17134.0\ucrt"
  "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.17134.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.17134.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.17134.0\winrt" "-IC
  :\Program Files (x86)\Windows Kits\10\include\10.0.17134.0\cppwinrt" /EHsc /Tpsrc\pypoisson.cpp /Fobuild\temp.win-amd64-3.7\Release\src\pypoisson.obj -w -fopenmp
  error: command 'cl.exe' failed: No such file or directory
  </code></pre>
  
  <p>I looked in my system variables and in path there is a route to cl.exe </p>
  
  <p><code>C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.15.26726\bin\Hostx64\x64\cl.exe</code></p>
  
  <p>and</p>
  
  <p><code>C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.15.26726\bin</code></p>
  
  <p>My system is 64-bit OS and x64-based processor</p>
  
  <p>Searching windows for cl.exe returns 8 possibilities all under the directory: <code>C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.15.26726\bin</code> some in Hostx64 and Hostx86</p>
  
  <p>Any ideas? I've been stuck on this for months.</p>
  
  # EDIT
  
  <p>On running:pip install git+<a href="https://github.com/mmolero/pypoisson.git" rel="nofollow noreferrer">https://github.com/mmolero/pypoisson.git</a></p>
  
  <pre><code>Collecting git+https://github.com/mmolero/pypoisson.git
    Cloning https://github.com/mmolero/pypoisson.git to c:\users\garyn\appdata\local\temp\pip-req-build-mp9rv8zh
  Installing collected packages: pypoisson
    Running setup.py install for pypoisson ... error
      Complete output from command C:\Users\garyn\PycharmProjects\pointcloudprocessor\venv\Scripts\python.exe -u -c "import setuptools, tokenize;__file__='C:\\Users\\garyn\\AppData\\Local\\Temp\\pip-req-build-mp9rv
  8zh\\setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record C:\Users\garyn\AppData\Local\Temp\pip-record-z9a0hu
  hl\install-record.txt --single-version-externally-managed --compile --install-headers C:\Users\garyn\PycharmProjects\pointcloudprocessor\venv\include\site\python3.7\pypoisson:
      running install
      running build
      running build_ext
      cythoning src/pypoisson.pyx to src\pypoisson.cpp
      C:\Users\garyn\PycharmProjects\pointcloudprocessor\venv\lib\site-packages\Cython\Compiler\Main.py:367: FutureWarning: Cython directive 'language_level' not set, using 2 for now (Py2). This will change in a la
  ter release! File: C:\Users\garyn\AppData\Local\Temp\pip-req-build-mp9rv8zh\src\pypoisson.pyx
        tree = Parsing.p_module(s, pxd, full_module_name)
      warning: src\pypoisson.pyx:130:67: Index should be typed for more efficient access
      building 'pypoisson' extension
      creating build
      creating build\temp.win-amd64-3.7
      creating build\temp.win-amd64-3.7\Release
      creating build\temp.win-amd64-3.7\Release\src
      creating build\temp.win-amd64-3.7\Release\src\PoissonRecon_v6_13
      creating build\temp.win-amd64-3.7\Release\src\PoissonRecon_v6_13\src
      C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.15.26726\bin\HostX86\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -IC:\Users\garyn\PycharmProjects\pointcloudprocessor\venv\lib
  \site-packages\numpy\core\include -IC:\Users\garyn\PycharmProjects\pointcloudprocessor\venv\include "-IC:\Program Files\Python\Python37\include" "-IC:\Program Files\Python\Python37\include" "-IC:\Program Files (x
  86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.15.26726\ATLMFC\include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.15.26726\include" "-IC:\Program Files (x86)\W
  indows Kits\NETFXSDK\4.6.1\include\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.17134.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.17134.0\shared" "-IC:\Program Files (x86)\Windows
   Kits\10\include\10.0.17134.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.17134.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.17134.0\cppwinrt" /EHsc /Tpsrc\pypoisson.cpp /Fobuild
  \temp.win-amd64-3.7\Release\src\pypoisson.obj -w -fopenmp
      cl : Command line warning D9025 : overriding '/W3' with '/w'
      cl : Command line warning D9002 : ignoring unknown option '-fopenmp'
      pypoisson.cpp
      c:\users\garyn\pycharmprojects\pointcloudprocessor\venv\lib\site-packages\numpy\core\include\numpy\npy_1_7_deprecated_api.h(14) : Warning Msg: Using deprecated NumPy API, disable it with #define NPY_NO_DEPREC
  ATED_API NPY_1_7_API_VERSION
      C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.15.26726\bin\HostX86\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -IC:\Users\garyn\PycharmProjects\pointcloudprocessor\venv\lib
  \site-packages\numpy\core\include -IC:\Users\garyn\PycharmProjects\pointcloudprocessor\venv\include "-IC:\Program Files\Python\Python37\include" "-IC:\Program Files\Python\Python37\include" "-IC:\Program Files (x
  86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.15.26726\ATLMFC\include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.15.26726\include" "-IC:\Program Files (x86)\W
  indows Kits\NETFXSDK\4.6.1\include\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.17134.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.17134.0\shared" "-IC:\Program Files (x86)\Windows
   Kits\10\include\10.0.17134.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.17134.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.17134.0\cppwinrt" /EHsc /Tpsrc/PoissonRecon_v6_13/src
  /CmdLineParser.cpp /Fobuild\temp.win-amd64-3.7\Release\src/PoissonRecon_v6_13/src/CmdLineParser.obj -w -fopenmp
      cl : Command line warning D9025 : overriding '/W3' with '/w'
      cl : Command line warning D9002 : ignoring unknown option '-fopenmp'
      CmdLineParser.cpp
      C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.15.26726\bin\HostX86\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -IC:\Users\garyn\PycharmProjects\pointcloudprocessor\venv\lib
  \site-packages\numpy\core\include -IC:\Users\garyn\PycharmProjects\pointcloudprocessor\venv\include "-IC:\Program Files\Python\Python37\include" "-IC:\Program Files\Python\Python37\include" "-IC:\Program Files (x
  86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.15.26726\ATLMFC\include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.15.26726\include" "-IC:\Program Files (x86)\W
  indows Kits\NETFXSDK\4.6.1\include\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.17134.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.17134.0\shared" "-IC:\Program Files (x86)\Windows
   Kits\10\include\10.0.17134.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.17134.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.17134.0\cppwinrt" /EHsc /Tpsrc/PoissonRecon_v6_13/src
  /Factor.cpp /Fobuild\temp.win-amd64-3.7\Release\src/PoissonRecon_v6_13/src/Factor.obj -w -fopenmp
      cl : Command line warning D9025 : overriding '/W3' with '/w'
      cl : Command line warning D9002 : ignoring unknown option '-fopenmp'
      Factor.cpp
      C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.15.26726\bin\HostX86\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -IC:\Users\garyn\PycharmProjects\pointcloudprocessor\venv\lib
  \site-packages\numpy\core\include -IC:\Users\garyn\PycharmProjects\pointcloudprocessor\venv\include "-IC:\Program Files\Python\Python37\include" "-IC:\Program Files\Python\Python37\include" "-IC:\Program Files (x
  86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.15.26726\ATLMFC\include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.15.26726\include" "-IC:\Program Files (x86)\W
  indows Kits\NETFXSDK\4.6.1\include\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.17134.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.17134.0\shared" "-IC:\Program Files (x86)\Windows
   Kits\10\include\10.0.17134.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.17134.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.17134.0\cppwinrt" /EHsc /Tpsrc/PoissonRecon_v6_13/src
  /Geometry.cpp /Fobuild\temp.win-amd64-3.7\Release\src/PoissonRecon_v6_13/src/Geometry.obj -w -fopenmp
      cl : Command line warning D9025 : overriding '/W3' with '/w'
      cl : Command line warning D9002 : ignoring unknown option '-fopenmp'
      Geometry.cpp
      c:\users\garyn\appdata\local\temp\pip-req-build-mp9rv8zh\src\poissonrecon_v6_13\src\Geometry.h(33): fatal error C1189: #error:  OpenMP is required
      error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2017\\Community\\VC\\Tools\\MSVC\\14.15.26726\\bin\\HostX86\\x64\\cl.exe' failed with exit status 2
  </code></pre>