* Peter Samuelson <peters@p12n.org>, 2014-02-26, 09:15:
And if there are any cases even more exotic (you need to restrict the arch but _not_ because of build-dep availability):Build-Conflicts-Indep: build-essential [!i386]
To be pedantically correct, one should conflict with a build-essential package (such as "dpkg-dev"), not with THE "build-essential" package.
dpkg-buildpackage currently requires the "build-essential" package to be installed, but that's an implementation detail that shouldn't be relied upon.
-- Jakub Wilk