Bug#1100187: dpkg-dev: Please drop pie-{compile,link}.spec also on x32 and elsewhere

Package: dpkg-dev
Version: 1.22.2
Severity: important
Tags: ftbfs
X-Debbugs-Cc: [email protected], John Paul Adrian Glaubitz <[email protected]>

This is a continuation of #1040062, with two parts:

First, I would appreciate if an x32 porter could take a look
and approve that pie-{compile,link}.spec should also be dropped
on x32.

Changing gcc to default to PIE on x32 would likely work,
but the current situation with x32 being the only half-PIE
architecture due to the random set of packages with
hardening=+all being PIE and others not causes breakage.

Examples of packages broken due to that:
https://buildd.debian.org/freefem++
https://buildd.debian.org/gpgme1.0
https://buildd.debian.org/gprbuild
https://buildd.debian.org/libedlib
https://buildd.debian.org/libgpiod
https://buildd.debian.org/marisa
https://buildd.debian.org/python-pylibacl
https://buildd.debian.org/python-pyxattr
https://buildd.debian.org/roc-toolkit
https://buildd.debian.org/uncalled

It also causes extra work when people workaround this
breakage for individual packages:
https://bugs.debian.org/1092588
https://bugs.debian.org/1095522


Second, even on architectures like m68k and sh4 where the pie
specs do not make a difference there is the occasional breakage like
https://buildd.debian.org/status/package.php?p=pylsqpack&suite=sid

While this might technically be a bug in a package,
obscure breakage only on some of the most exotic ports
rarely lead to fixing.