-Wl,-z,relro and -z,now were wiping out environmental LDFLAGS passed in by the user.
I moved them to HARDENING_* where they belong.
Merge pull request #3634

505867a -Wl,-z,relro and -z,now were wiping out environmental LDFLAGS passed in by the user. I moved them to HARDENING_* where they belong. (Midnight Magic)