Hello gem5-dev list, I've been trying to get gem5 to build on my system with gcc-9.2.0 or clang-9 without just downgrading errors / disabling warnings.
A pervasive issue I'm hitting is that recent releases of gcc/clang are starting to emit errors for a little-known c++11 requirement: > The implicit definition of a copy constructor as defaulted is deprecated > if the class has a user-declared copy assignment operator or a > user-declared destructor. The implicit definition of a copy assignment > operator as defaulted is deprecated if the class has a user-declared > copy constructor or a user-declared destructor. (see: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58407 ) tl;dr: gem5 needs a bunch of boilerplate of the form: Foo& operator=(const Foo&) = default; or Foo(const Foo&) = default; I have submitted a couple commits to gerrit that handle this and some other warnings: 21279 21280 21281, but they are far from complete, and maybe incorrect. I'm currently stuck trying to figure out what the code under `src/base/bitunion.hh` is doing and what sort of modification it needs for a default constexpr copy constructor. If someone more familiar could take a look, I'd appreciate it. Best, Nicholas _______________________________________________ gem5-dev mailing list gem5-dev@gem5.org http://m5sim.org/mailman/listinfo/gem5-dev
