Packages may ship both i386 and amd64 binaries in the same tarfile

[Michael Vogt]

This is a pretty tricky one, some binary packages ship both their "i386" and "amd64" shlibs in the same tarballs and switch at runtime. This will confuse dh_shlibdeps mightly as it will try to resolve them for the non-existing architecture.

A common workaround for this in the debian/rules packaging is:

override_dh_shlibdeps:
ifeq ($(DEB_BUILD_ARCH),i386)
 dh_shlibdeps -l"$(CURDIR)/debian/$(PACKAGE_NAME)/opt/$(PACKAGE_NAME)/x86"
else
 dh_shlibdeps -Xdebian/$(PACKAGE_NAME)/opt/$(PACKAGE_NAME)/.mojosetup -l"$(CURDIR)/debian/$(PACKAGE_NAME)/opt/$(PACKAGE_NAME)/amd64"
endif

Another one would be to write a custom install file, e.g. debian/install.i386, debian/install.amd64 that would install only the binary arch specific bits instead of everything. A good example for this is supermeatboy.