Bug#1061049: libsuitesparse-dev: libsuitesparse-dev 7.4.0 has an ABI break in libcholmod5 without bumping to "libcholmod6"

[Dima Kogan]

Thanks.

In case you're unaware, there're tools that can report ABI and API
breaks. I usually use abi-compliance-checker (works great). And there's
also abigail (have't tried it myself, but supposedly works well). Both
are in Debian.

Cheers.