How to rebuild a Debian package for a foreign architecture?

[Vincent Lefevre <vincent@vinc17.net>]

To rebuild a Debian package, one can use:

  debuild -i -us -uc -b

But how to rebuild a Debian package for a foreign architecture?
In my case for i386 from an amd64 machine. I've tried

  debuild -i -us -uc -b -a i386

but the build fails at some point:

[...]
dh_strip -a
dh_strip: Compatibility levels before 9 are deprecated (level 7 in use)
dh_strip: Compatibility levels before 9 are deprecated (level 7 in use)
dh_strip: Compatibility levels before 9 are deprecated (level 7 in use)
Can't exec "i686-linux-gnu-strip": No such file or directory at /usr/share/perl5/Debian/Debhelper/Dh_Lib.pm line 358.
[...]

If I need binutils-i686-linux-gnu, shouldn't dpkg-buildpackage fail
when checking the build dependencies?

-- 
Vincent Lefèvre <vincent@vinc17.net> - Web: <https://www.vinc17.net/>
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