On 6 Jul 2023, at 22:41, Nuno Teixeira <[email protected]> wrote: > > Could USES=compiler:c11 be removed from ports presuming that available > compilers support c11? (Do they ?)
There are probably older versions of gcc and clang that don't support C11 yet,
but I think all recent versions do. But it couldn't hurt to leave this in, I
guess.
This does not automatically mean that -std=c11 is added to the C compiler
command line, for that you have to specify USE_CSTD=c11 in the port Makefile.
> I'm confused because some aws CMakeLists.txt have:
>
> if(NOT CMAKE_CXX_STANDARD)
> set(CMAKE_CXX_STANDARD 11)
> endif()
>
> But c++11 have nothing to do with c11 (for what wikipedia says)....
Yes, that is only specifying for some CMake files that if the end-user does not
explicitly specify a C++ standard, it will use C++11. In practice, this will
put -std=c++11 on the C++ compiler (${CMAKE_CXX_COMPILER}) command line.
For ports you can achieve the same result by adding USE_CXXSTD=c++11 in the
port Makefile.
-Dimitry
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