[SYCL][E2E] Pass -std=c++17 to the compiler provided via -fsycl-host-compiler

[againull]

Author: Marcos Maronas marcos.maronas@intel.com

[bader]

@againull, do we need this change?

[againull]

@againull, do we need this change?

Yes, if gcc compiler is used which doesn't have c++17 enabled by default.

[bader]

@againull, do we need this change?

Yes, if gcc compiler is used which doesn't have c++17 enabled by default.

Shouldn't DPC++ driver set C++ mode for the host compiler? It configures include paths, links runtime library already.
Tagging @mdtoguchi for awareness.

[mdtoguchi]

@againull, do we need this change?

Yes, if gcc compiler is used which doesn't have c++17 enabled by default.

Shouldn't DPC++ driver set C++ mode for the host compiler? It configures include paths, links runtime library already. Tagging @mdtoguchi for awareness.

The driver doesn't make the C++17 assumption here as it requires an option. There are some assumptions we make in regards to options for headers and libraries for option names. Some determination would probably need to be done to make sure the option we are passing to set the std version is valid for the host compiler being used.