and want to do regtests comparison for all of them, you can
@code{make test-baseline} with git master, checkout some branch,
@code{make} and @code{make check} it, then switch to another branch,
-@code{make} and @code{make check} it without doing @code{make test-baseline}
-again.}
+@code{make test-clean}, @code{make} and @code{make check} it without doing
+@code{make test-baseline} again.}
@node Finding the cause of a regression
For tracking memory usage as part of this test, you will need
GUILE CVS; especially the following patch:
+@smallexample
@uref{http://www.lilypond.org/vc/old/gub.darcs/patches/guile-1.9-gcstats.patch}.
+@end smallexample
@subheading Code coverage