cleveref incompatibilities with Elsevier and Springer

elsart problems: If you try using cleveref with any of the elsart packages, you may get this error:

! TeX capacity exceeded, sorry [input stack size=5000].
\cl@part ->\cl@part 
                    \@elt {section}

This is due to a flaw in the elsart packages. They setup some part counters even though part isn't defined. This confuses cleveref. To fix this, add the following anywhere in your preamble:

\makeatletter \let\cl@part\relax \makeatother

Later, you can use cleveref's poorman option to strip all of the cleveref stuff from your document. After that, you can remove this line.

svjour problems: Similarly, if you try combining cleveref with Springer journal support files, you may get this error:

! TeX capacity exceeded, sorry [input stack size=5000].
\cl@chapter ->\cl@chapter
                          \@elt {theorem}

Again, this is due to a flaw in the Springer packages. They setup some chapter counters even though chapter isn't defined. To fix this, add the following anywhere in your preamble:

\makeatletter \let\cl@chapter\relax \makeatother

Again, this can be removed after cleveref's poorman procedure is applied.

Source and acknowledgments: The Springer solution was given by "Dan" in a comp.text.tex post. I used it to generate the elsart solution.