Bug#212183: apt: FTBFS when gain-root command gains real root

[Robert Millan <rmh@debian.org>]

Package: apt
Version: 0.5.12
Severity: serious

I get FTBFS when gain-root command passed as "-r" to dpkg-buildpackage does
gain real root, such as sudo:

rmh@aragorn:/tmp/apt-0.5.12$ dpkg-buildpackage -rsudo -B
[...]
cp -a /usr/share/misc/config.sub buildlib/config.sub
cp: cannot create regular file `buildlib/config.sub': Permission denied
make: *** [build/configure-stamp] Error 1

-- System Information:
Debian Release: testing/unstable
Architecture: i386
Kernel: Linux aragorn 2.2.25 #1 Fri Jun 20 19:28:33 EST 2003 i686
Locale: LANG=C, LC_CTYPE=C

Versions of packages apt depends on:
ii  libc6                      2.3.2-8       GNU C Library: Shared libraries an
ii  libgcc1                    1:3.3.2-0pre4 GCC support library
ii  libstdc++5                 1:3.3.2-0pre4 The GNU Standard C++ Library v3

-- no debconf information