• Emil Velikov's avatar
    configure: add CXX11_CXXFLAGS to LLVM_CXXFLAGS · 12187550
    Emil Velikov authored
    Seemingly with LLVM7 and GCC 5.0, the former won't properly advertise
    -std=c++11 and the latter will choke.
    
    dd this temporary workaround, otherwise we'll get errors like:
    
    In file included from /usr/include/c++/5/type_traits:35:0,
                     from /usr/lib/llvm-7/include/llvm/Support/type_traits.h:18,
                     from /usr/lib/llvm-7/include/llvm/ADT/Optional.h:22,
                     from /usr/lib/llvm-7/include/llvm/ADT/STLExtras.h:20,
                     from /usr/lib/llvm-7/include/llvm/ADT/StringRef.h:13,
                     from /usr/lib/llvm-7/include/llvm/Target/TargetMachine.h:17,
                     from ../../../src/amd/common/ac_llvm_helper.cpp:36:
    /usr/include/c++/5/bits/c++0x_warning.h:32:2: error: #error This file requires compiler and library support for the ISO C++ 2011 standard. This support must be enabled with the -std=c++11 or -std=gnu++11 compiler options.
    Signed-off-by: 's avatarEmil Velikov <emil.velikov@collabora.com>
    Reviewed-by: Dylan Baker's avatarDylan Baker <dylan@pnwbakers.com>
    12187550