Hi! On Mon, 2024-06-10 at 18:01:58 +0200, Helmut Grohne wrote: > Ideally, we'd not just do a rebuild with the flags, but also do a > rebuild without and then compare the binary .debs. In the event that we > misguide configure, we expect the .debs to differ and otherwise to equal > due to the work of the reproducible builds folks. That equality has a > really annoying difference in practice though: Build ids are dependent > on the compiler flags, so the comparison would have to magically ignore > changes in build id and this is where things become quite difficult.
A quick check seems to indicate warning flags do not get recorded in the object files, which make sense as these are not supposed to change the emitted objects. (This can be seen with «dwarfdump .../*.debug | grep DW_AT_producer» on the debug files from the -dbgsym packages.) Thanks, Guillem
