Quoting Ilia Mirkin (2017-11-15 09:52:06) > On Wed, Nov 15, 2017 at 12:47 PM, Dylan Baker <dy...@pnwbakers.com> wrote: > > Nope. meson builds all C++ code as C++11 because so much of mesa's C++ code > > cannot be built without it (Because of LLVM). As far as I can tell the GLSL > > compiler and the Intel Compiler are the only C++ code in mesa not using > > C++11. > > Actually C++11 isn't used anywhere except clover and swr, AFAIK. (Look > for CXX11_CXXFLAGS.) > > -ilia
I should have added the Nouveau compiler to the list of code that doesn't require C++11, sorry about that :) However, LLVM has been built with C++11 since at least 4.0, and anything linking to it (r300, r600, radeonsi, radv, llvmpipe) have to be built with it even if they don't use C++11 features, because LLVM does. I think we mostly get around this because autotools doesn't set a standard (by default), and clang++ and g++ have had C++11 as the default standard for quite a while now (at least back to gcc 4.8). For giggles I tried to build just llvmpipe with the C++ standard set to c++03 and I got a massive pile of syntax errors from the compiler. If you want to try that with meson you could run: sed -i -e 's@c++11@c++03@g' meson.build meson build-cpp03 -Dgallium-drivers=swrast -Ddri-drivers= -Dvulkan-drivers= Dylan
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