Anssi Hannula anssi.hannula@iki.fi writes:
Some Linux distributions (at least Mageia) build packages with -Wp,-D_FORTIFY_SOURCE=2 by default. There is a check in configure which checks for enabled fortify and adds "-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=0". Unfortunately, -Wp,-Dfoo are applied after -Dfoo, so the added flags fail to override the fortify in the CFLAGS.
I would say that's a distro bug. Defaulting to Fortify is already broken enough, but making it even harder to disable is stupid. I don't think we want to get into that kind of arms race.