On 30 June 2015 at 17:18, Dhole <dh...@openmailbox.org> wrote: > In the debian reproducible builds project we have considered several > options to address this issue. We considered redefining the __DATE__ and > __TIME__ defines by command line flags passed to gcc, but as you say, > that triggers warnings, which could become errors when building with > -Werror and thus may require manual intervention on many packages.
Well, it would require adding -Wno-something (-Wno-reproducible? -Wno-unreproducible? or perhaps simply -freproducible? ) to some CFLAGS/CXXFLAGS. Is that too much manual intervention? (I'm asking sincerely, perhaps indeed it is). This could be a big hammer option that simply disables any warning that is not relevant for reproducible builds (the default being -Wsomething), for example avoid emitting --Wbuiltin-macro-redefined warnings in the specific cases of __TIME__ and __DATE. Just an idea, the maintainers would need to say if they would accept such an option. Cheers, Manuel.
