cl.exe installed but not found - c++

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:
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
I looked in my system variables and in path there is a route to cl.exe
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.15.26726\bin\Hostx64\x64\cl.exe
and
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.15.26726\bin
My system is 64-bit OS and x64-based processor
Searching windows for cl.exe returns 8 possibilities all under the directory: C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.15.26726\bin some in Hostx64 and Hostx86
Any ideas? I've been stuck on this for months.
# EDIT
On running:pip install git+https://github.com/mmolero/pypoisson.git
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

Related

v8 : visual studio release compilation static lib error: lld-link: error: could not open 'obj/v8_wrappers.lib': no such file or directory

i followed all the steps from https://v8.dev/docs/build-gn
to build release-static v8 lib but I'm getting this error :
using VC 2019 , win10 64bit from https://v8.dev/docs/build-gn
doing git branch it shows :
c:\Dev\my\v8\depot_tools\v8\v8>git branch
* (HEAD detached at origin/master)
master
the error I'm getting :
c:\Dev\my\v8\depot_tools\v8\v8>python tools/dev/v8gen.py x64.release
c:\Dev\my\v8\depot_tools\v8\v8>ninja -C out.gn/x64.release
ninja: Entering directory `out.gn/x64.release'
[1/1] Regenerating ninja files
[206/2990] LINK bytecode_builtins_list_generator.exe bytecode_builtins_list_generator.exe.pdb
FAILED: bytecode_builtins_list_generator.exe bytecode_builtins_list_generator.exe.pdb
ninja -t msvc -e environment.x64 -- ..\..\third_party\llvm-build\Release+Asserts\bin\lld-link.exe /nologo -libpath:..\..\third_party\llvm-build\Release+Asserts\lib\clang\12.0.0\lib\windows "-libpath:..\..\..\..\..\..\..\..\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.25.28610\ATLMFC\lib\x64" "-libpath:..\..\..\..\..\..\..\..\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.25.28610\lib\x64" "-libpath:..\..\..\..\..\..\..\..\Program Files (x86)\Windows Kits\NETFXSDK\4.8\lib\um\x64" "-libpath:..\..\..\..\..\..\..\..\Program Files (x86)\Windows Kits\10\lib\10.0.19041.0\ucrt\x64" "-libpath:..\..\..\..\..\..\..\..\Program Files (x86)\Windows Kits\10\lib\10.0.19041.0\um\x64" /OUT:./bytecode_builtins_list_generator.exe /PDB:./bytecode_builtins_list_generator.exe.pdb #./bytecode_builtins_list_generator.exe.rsp
lld-link: error: could not open 'obj/v8_wrappers.lib': no such file or directory
[207/2990] LINK torque-language-server.exe torque-language-server.exe.pdb
FAILED: torque-language-server.exe torque-language-server.exe.pdb
ninja -t msvc -e environment.x64 -- ..\..\third_party\llvm-build\Release+Asserts\bin\lld-link.exe /nologo -libpath:..\..\third_party\llvm-build\Release+Asserts\lib\clang\12.0.0\lib\windows "-libpath:..\..\..\..\..\..\..\..\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.25.28610\ATLMFC\lib\x64" "-libpath:..\..\..\..\..\..\..\..\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.25.28610\lib\x64" "-libpath:..\..\..\..\..\..\..\..\Program Files (x86)\Windows Kits\NETFXSDK\4.8\lib\um\x64" "-libpath:..\..\..\..\..\..\..\..\Program Files (x86)\Windows Kits\10\lib\10.0.19041.0\ucrt\x64" "-libpath:..\..\..\..\..\..\..\..\Program Files (x86)\Windows Kits\10\lib\10.0.19041.0\um\x64" /OUT:./torque-language-server.exe /PDB:./torque-language-server.exe.pdb #./torque-language-server.exe.rsp
lld-link: error: could not open 'obj/v8_wrappers.lib': no such file or directory
[208/2990] LINK torque.exe torque.exe.pdb
FAILED: torque.exe torque.exe.pdb
ninja -t msvc -e environment.x64 -- ..\..\third_party\llvm-build\Release+Asserts\bin\lld-link.exe /nologo -libpath:..\..\third_party\llvm-build\Release+Asserts\lib\clang\12.0.0\lib\windows "-libpath:..\..\..\..\..\..\..\..\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.25.28610\ATLMFC\lib\x64" "-libpath:..\..\..\..\..\..\..\..\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.25.28610\lib\x64" "-libpath:..\..\..\..\..\..\..\..\Program Files (x86)\Windows Kits\NETFXSDK\4.8\lib\um\x64" "-libpath:..\..\..\..\..\..\..\..\Program Files (x86)\Windows Kits\10\lib\10.0.19041.0\ucrt\x64" "-libpath:..\..\..\..\..\..\..\..\Program Files (x86)\Windows Kits\10\lib\10.0.19041.0\um\x64" /OUT:./torque.exe /PDB:./torque.exe.pdb #./torque.exe.rsp
lld-link: error: could not open 'obj/v8_wrappers.lib': no such file or directory
[215/2990] CXX obj/test/unittests/cppgc_unittests_sources/member-unittest.obj
ninja: build stopped: subcommand failed.

How to tell Bazel which compiler to use without configuring a new toolchain

I would like to force Bazel to use a new compiler to build my project.
From what I understand I could configure a new toolchain or use some command-line options.
I tried the following options:
-CC=clang bazel build //main:hello-world
-export CC=C:\cygwin64\bin\clang++
- bazel build //main:hello-world --client_env=CC=clang
I think these are not working because if I compile the same hello-world.cc file with
clang hello-world.cc
I get the error:
clang-8: error: linker command failed with exit code 1 (use -v to see invocation)
but with
CC=clang bazel build //main:hello-world
or
bazel build //main:hello-world --client_env=CC=clang
the build is successful.
Any idea why the result is different, and how to solve this?
Where can I check which compiler is Bazel using?
EDIT:
here the output of:
CC=C:\cygwin64\bin\clang bazel build -s //main:hello-world
Starting local Bazel server and connecting to it...
Loading:
Loading: 0 packages loaded
Analyzing: target //main:hello-world (1 packages loaded, 0 targets configured)
Analyzing: target //main:hello-world (11 packages loaded, 18 targets configured)
INFO: Analyzed target //main:hello-world (14 packages loaded, 59 targets configured).
INFO: Found 1 target...
[0 / 6] [Prepa] BazelWorkspaceStatusAction stable-status.txt ... (4 actions, 0 running)
SUBCOMMAND: # //main:hello-world [action 'Compiling main/hello-world.cc', configuration: 1f7c3bee164375155568e7845819f422152903a0240344d14b0c6474746ef185, execution platform: #local_config_platform//:host]
cd C:/cygwin64/home/user/_bazel_user/5r4lncy4/execroot/__main__
SET INCLUDE=C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.25.28610\ATLMFC\include;C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.25.28610\include;C:\Program Files (x86)\Windows Kits\NETFXSDK\4.8\include\um;C:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\ucrt;C:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\shared;C:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\um;C:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\winrt;C:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\cppwinrt
SET PATH=C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.25.28610\bin\HostX64\x64;C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Common7\IDE\VC\VCPackages;C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Common7\IDE\CommonExtensions\Microsoft\TestWindow;C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Common7\IDE\CommonExtensions\Microsoft\TeamFoundation\Team Explorer;C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Current\bin\Roslyn;C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Team Tools\Performance Tools\x64;C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Team Tools\Performance Tools;C:\Program Files (x86)\Microsoft Visual Studio\Shared\Common\VSPerfCollectionTools\vs2019\\x64;C:\Program Files (x86)\Microsoft Visual Studio\Shared\Common\VSPerfCollectionTools\vs2019\;C:\Program Files (x86)\Microsoft SDKs\Windows\v10.0A\bin\NETFX 4.8 Tools\x64\;C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Common7\IDE\CommonExtensions\Microsoft\FSharp\;C:\Program Files (x86)\Windows Kits\10\bin\10.0.18362.0\x64;C:\Program Files (x86)\Windows Kits\10\bin\x64;C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\\MSBuild\Current\Bin;C:\Windows\Microsoft.NET\Framework64\v4.0.30319;C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Common7\IDE\;C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Common7\Tools\;;C:\WINDOWS\system32;C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\bin;C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Common7\IDE\CommonExtensions\Microsoft\CMake\Ninja;C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Common7\IDE\VC\Linux\bin\ConnectionManagerExe
SET PWD=/proc/self/cwd
SET RUNFILES_MANIFEST_ONLY=1
SET TEMP=C:\cygwin64\tmp
SET TMP=C:\cygwin64\tmp
C:/Program Files (x86)/Microsoft Visual Studio/2019/Community/VC/Tools/MSVC/14.25.28610/bin/HostX64/x64/cl.exe /nologo /DCOMPILER_MSVC /DNOMINMAX /D_WIN32_WINNT=0x0601 /D_CRT_SECURE_NO_DEPRECATE /D_CRT_SECURE_NO_WARNINGS /bigobj /Zm500 /EHsc /wd4351 /wd4291 /wd4250 /wd4996 /I. /Ibazel-out/x64_windows-fastbuild/bin /Iexternal/bazel_tools /Ibazel-out/x64_windows-fastbuild/bin/external/bazel_tools /showIncludes /MD /Od /Z7 /wd4117 -D__DATE__="redacted" -D__TIMESTAMP__="redacted" -D__TIME__="redacted" /Fobazel-out/x64_windows-fastbuild/bin/main/_objs/hello-world/hello-world.obj /c main/hello-world.cc
SUBCOMMAND: # //main:hello-world [action 'Linking main/hello-world.exe', configuration: 1f7c3bee164375155568e7845819f422152903a0240344d14b0c6474746ef185, execution platform: #local_config_platform//:host]
cd C:/cygwin64/home/user/_bazel_user/5r4lncy4/execroot/__main__
SET LIB=C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.25.28610\ATLMFC\lib\x64;C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.25.28610\lib\x64;C:\Program Files (x86)\Windows Kits\NETFXSDK\4.8\lib\um\x64;C:\Program Files (x86)\Windows Kits\10\lib\10.0.18362.0\ucrt\x64;C:\Program Files (x86)\Windows Kits\10\lib\10.0.18362.0\um\x64;
SET PATH=C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.25.28610\bin\HostX64\x64;C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Common7\IDE\VC\VCPackages;C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Common7\IDE\CommonExtensions\Microsoft\TestWindow;C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Common7\IDE\CommonExtensions\Microsoft\TeamFoundation\Team Explorer;C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Current\bin\Roslyn;C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Team Tools\Performance Tools\x64;C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Team Tools\Performance Tools;C:\Program Files (x86)\Microsoft Visual Studio\Shared\Common\VSPerfCollectionTools\vs2019\\x64;C:\Program Files (x86)\Microsoft Visual Studio\Shared\Common\VSPerfCollectionTools\vs2019\;C:\Program Files (x86)\Microsoft SDKs\Windows\v10.0A\bin\NETFX 4.8 Tools\x64\;C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Common7\IDE\CommonExtensions\Microsoft\FSharp\;C:\Program Files (x86)\Windows Kits\10\bin\10.0.18362.0\x64;C:\Program Files (x86)\Windows Kits\10\bin\x64;C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\\MSBuild\Current\Bin;C:\Windows\Microsoft.NET\Framework64\v4.0.30319;C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Common7\IDE\;C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Common7\Tools\;;C:\WINDOWS\system32;C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\bin;C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Common7\IDE\CommonExtensions\Microsoft\CMake\Ninja;C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Common7\IDE\VC\Linux\bin\ConnectionManagerExe
SET PWD=/proc/self/cwd
SET RUNFILES_MANIFEST_ONLY=1
SET TEMP=C:\cygwin64\tmp
SET TMP=C:\cygwin64\tmp
C:/Program Files (x86)/Microsoft Visual Studio/2019/Community/VC/Tools/MSVC/14.25.28610/bin/HostX64/x64/link.exe #bazel-out/x64_windows-fastbuild/bin/main/hello-world.exe-2.params
Target //main:hello-world up-to-date:
bazel-bin/main/hello-world.exe
INFO: Elapsed time: 4.561s, Critical Path: 0.67s
INFO: 2 processes: 2 local.
INFO: Build completed successfully, 6 total actions
INFO: Build completed successfully, 6 total actions
Any idea why this happens? i am using windows 10. Thank you in advance

When not defining your own toolchain, bazel attempts to perform automatic configuration for you which indeed takes into account value of CC variable when defined. Why your bare compilation attempt has failed is not entirely clear from the part of error message posted, but when in doubt, you can add -s to your bazel command line to see commands called and with that see which compiler has been called:
$ CC=/usr/bin/clang bazel build -s //:hello
INFO: Analyzed target //:hello (1 packages loaded, 15 targets configured).
INFO: Found 1 target...
SUBCOMMAND: # //:greet [action 'Compiling greet.cpp', configuration: dd44f3279b21e91676f65783c46b7b7816026ef7e696e80c251418ec64ffdf5e]
(cd /tmp/_bzl/execroot/__main__ && \
exec env - \
PATH=/bin:/usr/bin:/usr/local/bin \
PWD=/proc/self/cwd \
/usr/bin/clang -U_FORTIFY_SOURCE -fstack-protector -Wall -Wthread-safety -Wself-assign -fcolor-diagnostics -fno-omit-frame-pointer '-std=c++0x' -I/usr/lib64/qt/include -MD -MF bazel-out/k8-fastbuild/bin/_objs/greet/greet.pic.d '-frandom-seed=bazel-out/k8-fastbuild/bin/_objs/greet/greet.pic.o' -fPIC -iquote . -iquote bazel-out/k8-fastbuild/bin -Ibazel-out/k8-fastbuild/bin/_virtual_includes/greet -no-canonical-prefixes -Wno-builtin-macro-redefined '-D__DATE__="redacted"' '-D__TIMESTAMP__="redacted"' '-D__TIME__="redacted"' -c greet.cpp -o bazel-out/k8-fastbuild/bin/_objs/greet/greet.pic.o)
SUBCOMMAND: # //:hello [action 'Compiling hello.cpp', configuration: dd44f3279b21e91676f65783c46b7b7816026ef7e696e80c251418ec64ffdf5e]
(cd /tmp/_bzl/execroot/__main__ && \
exec env - \
PATH=/bin:/usr/bin:/usr/local/bin \
PWD=/proc/self/cwd \
/usr/bin/clang -U_FORTIFY_SOURCE -fstack-protector -Wall -Wthread-safety -Wself-assign -fcolor-diagnostics -fno-omit-frame-pointer '-std=c++0x' -I/usr/lib64/qt/include -MD -MF bazel-out/k8-fastbuild/bin/_objs/hello/hello.pic.d '-frandom-seed=bazel-out/k8-fastbuild/bin/_objs/hello/hello.pic.o' -fPIC -iquote . -iquote bazel-out/k8-fastbuild/bin -iquote external/bazel_tools -iquote bazel-out/k8-fastbuild/bin/external/bazel_tools -Ibazel-out/k8-fastbuild/bin/_virtual_includes/greet -no-canonical-prefixes -Wno-builtin-macro-redefined '-D__DATE__="redacted"' '-D__TIMESTAMP__="redacted"' '-D__TIME__="redacted"' -c hello.cpp -o bazel-out/k8-fastbuild/bin/_objs/hello/hello.pic.o)
SUBCOMMAND: # //:hello [action 'Linking hello', configuration: dd44f3279b21e91676f65783c46b7b7816026ef7e696e80c251418ec64ffdf5e]
(cd /tmp/_bzl/execroot/__main__ && \
exec env - \
PATH=/bin:/usr/bin:/usr/local/bin \
PWD=/proc/self/cwd \
/usr/bin/clang #bazel-out/k8-fastbuild/bin/hello-2.params)
Target //:hello up-to-date:
bazel-bin/hello
INFO: Elapsed time: 1.606s, Critical Path: 0.44s
INFO: 3 processes: 3 linux-sandbox.
INFO: Build completed successfully, 5 total actions
Windows is a bit special / different case: I've started looking at the the corresponding rules_cc, but from there actually followed back to the docs, currently recommended method would be to add a platform definition (e.g. in your workspace root BUILD):
platform(
name = "x64_windows-clang-cl",
constraint_values = [
"#platforms//cpu:x86_64",
"#platforms//os:windows",
"#bazel_tools//tools/cpp:clang-cl",
],
)
And registering the additional toolchain in your WORKSPACE file:
register_execution_platforms(
":x64_windows-clang-cl"
)
register_toolchains(
"#local_config_cc//:cc-toolchain-x64_windows-clang-cl",
)
Then (for now) use --incompatible_enable_cc_toolchain_resolution flag with bazel.
At least at the moment, alternatively you should be able to tell bazel to use LLVM on Windows by running bazel with: --compiler=clang-cl.
You may need to set BAZEL_LLVM (this time) to a directory where LLVM is installed (or try relying on automatic resolution).
That said, it does not look like you could use cygwin LLVM compiler on Windows while still relying on automatic toolchain configuration. I suspect you would really need to define your own toolchain for that (not sure how substantial problems would you encounter crossing the boundary between bazel for Windows and cygwin based compiler each having different idea about what path names to use).

Facing problem in installing mysqlclient in python

I am a beginner in python. I am doing my college project in django-python. I want to use MySQL (phpMyAdmin). I am facing problem in installing mysqlclient.
The error is given below...
C:\Program Files (x86)\Microsoft Visual Studio\2017\BuildTools\VC\Tools\MSVC\14.15.26726\bin\HostX86\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -Dversion_info=(1,3,12,'final',0) -D__version__=1.3.12 "-IC:\Program Files (x86)\MySQL\MySQL Connector C 6.1\include" -Ic:\users\bhuvan_02\appdata\local\programs\python\python37\include -Ic:\users\bhuvan_02\appdata\local\programs\python\python37\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\BuildTools\VC\Tools\MSVC\14.15.26726\include" "-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" /Tc_mysql.c /Fobuild\temp.win-amd64-3.7\Release_mysql.obj /Zl
_mysql.c
_mysql.c(29): fatal error C1083: Cannot open include file: 'mysql.h': No such file or directory
error: command 'C:\Program Files (x86)\Microsoft Visual Studio\2017\BuildTools\VC\Tools\MSVC\14.15.26726\bin\HostX86\x64\cl.exe' failed with exit status 2
Any type of help is appreciated...

Install older version, latest version 1.3.13 is having problems.
pip install mysqlclient==1.3.12

compiling C++ in windows cannot open file 'libcpmt.lib'

I am trying to compile libffm on my windows 10 machine:
https://github.com/guestwalk/libffm
I have Visual Studio Express 2013 installed and am using the VS2013 x64 Cross Tools Command Prompt to try and compile the package.
e:\libffm\nmake -f Makefile.win clean all
Microsoft (R) Program Maintenance Utility Version 12.00.21005.1
Copyright (C) Microsoft Corporation. All rights reserved.
erase /Q *.obj *.exe windows\.
rd windows
mkdir windows
cl.exe /nologo /O2 /EHsc /D "_CRT_SECURE_NO_DEPRECATE" /D "USEOMP" /openmp -c ffm.cpp
ffm.cpp
ffm.cpp(1) : warning C4068: unknown pragma
cl.exe /nologo /O2 /EHsc /D "_CRT_SECURE_NO_DEPRECATE" /D "USEOMP" /openmp ffm-train.cpp ffm.obj -Fewindows\ffm-train.exe
ffm-train.cpp
ffm-train.cpp(1) : warning C4068: unknown pragma
LINK : fatal error LNK1104: cannot open file 'libcpmt.lib'
NMAKE : fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\BIN\x86_amd64\cl.exe"' : return code '0x2'
Stop.
I read that it maybe issues with my environment variables so have reinstalled the tools for C++ for VS2013 Express.
When I check the path variables I get:
echo %LIB%
C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\LIB\amd64;C:\Program Files (x86)\Windows Kits\8.1\lib\winv6.3\um\x64;
echo %LIBPATH%
C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319;C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\LIB\amd64;C:\Program Files (x86)\Windows Kits\8.1\References\CommonConfiguration\Neutral;C:\Program Files (x86)\Microsoft SDKs\Windows\v8.1\ExtensionSDKs\Microsoft.VCLibs\12.0\References\CommonConfiguration\neutral;
any ideas what to try next?

Separating Cuda CU file to many other files and OPENGL compiling issue

i have a huge CU file which contains my project , im trying to separate it into small CU files , but im getting many gl.h errors , i dont know what to do... it's driving me crazy..
1> Compiling CUDA source file core.cu...
1>
1> C:\Users\igal\Desktop\prj trying to devide files\graph>"C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v4.0\bin\nvcc.exe" -gencode=arch=compute_10,code=\"sm_10,compute_10\" --use-local-env --cl-version 2010 -ccbin "c:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\bin" -I"C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v4.0\include" -G0 --keep-dir "Debug" -maxrregcount=0 --machine 32 --compile -D_NEXUS_DEBUG -g -Xcompiler "/EHsc /nologo /Od /Zi /MDd " -o "Debug\core.cu.obj" "C:\Users\igal\Desktop\prj trying to devide files\graph\core.cu"
1>c:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\include\GL/gl.h(1152): error : this declaration has no storage class or type specifier
1>c:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\include\GL/gl.h(1152): error : expected a ";"
1>c:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\include\GL/gl.h(1153): error : this declaration has no storage class or type specifier
1>c:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\include\GL/gl.h(1153): error : variable "WINGDIAPI" has already been defined
1>c:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\include\GL/gl.h(1153): error : expected a ";"
and the list goes on..

Since you're on Windows, make sure that you include windows.h before including gl.h, or any other file which may indirectly include gl.h.
As stated on MSDN, this is necessary for OpenGL to work.