Compiler Errors WRT json.hpp and CPP version 14 requirement

[sc0m3r]

problem seems to stem from :
CUDACOMPILE : nvcc warning : The -std=c++14 flag is not supported with the configured host compiler. Flag will be ignored. [P:\opensource\tiny-cuda-nn\build\src\tiny-cuda-nn.vcxproj]
json cpp which needs c++14
is there a way to tweak the nvcc compiler ?

this also happens when compiling instant-ngp

Tried to build on multiple systems, specs listed

• cuda 11.4, sm86 - 3090
• cuda 10.2 sm70 - TitanV

build output:
tiny-cuda-nn_build.log

[Tom94]

Could you let us know which host compiler (+ version) you are using? That might shed light on why nvcc reports that it doesn't support C++14.

[xuxmin]

I met the same compiler error in vs2019 16.11 and cuda 10.2, and finally compile success when I change cuda version to 11.4

[sc0m3r]

VS2019 Version16.8.3, cuda 11.4, sm86 - 3090
and
VS2019 Version 16.11.5, cuda 10.2 sm70 - TitanV