Add "extern" to silence compiler warnings
Add "extern" to silence compiler warnings

When declaring

    extern "C" { char foo[]; }

some C++ compiler configs will complain "definition of variable with array type needs an explicit size or an initializer". Adding another extern silences this:

    extern "C" { extern char foo[]; }

kgnk/Halide,psuriana/Halide,psuriana/Halide,psuriana/Halide,kgnk/Halide,kgnk/Halide,psuriana/Halide,psuriana/Halide,kgnk/Halide,kgnk/Halide,kgnk/Halide,psuriana/Halide,kgnk/Halide,kgnk/Halide,psuriana/Halide