Well, Compress-DSRC-0.002/Build.PL uses Module::Build::WithXSpp which uses ExtUtils::CppGuess

It is those modules that need enhancing not your Build.PL, so you can simply tell them you want C++11, without having to use extra_compiler_flags -std=c++11 or ... in your Build.PL

But speaking generically,

Yes, %Config is where you're supposed to retrieve the compiler name, compiler options..... used to build perl, they're going to be used to build your module as well

If a user is going to use a different compiler, hes going to override %Config with ExtUtils::FakeConfig ...

Sure, print an extra message to make it easy for user to understand that it probably won't work; compiler messages can be hard to understand

But you shouldn't prevent the compiler from trying

Only the compiler knows for sure if it supports C++11

Best option is to let the compiler try

In reply to Re^3: Check compiler features before building XS module ( extra_compiler_flags -std=c++11 ) by Anonymous Monk
in thread Check compiler features before building XS module by jdv

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