While the accepted answer works(*), I think that there is a simpler solution:

install.packages(c("ada", "ipred", "evd"))
install.packages("http://cran.r-project.org/src/contrib/Archive/RecordLinkage/RecordLinkage_0.4-1.tar.gz")

That is, install.packages can take a URL, and so you don't need to manually download, install and delete the tarball. However, you do need to manually install the dependencies.

*The original answer was written 4 years ago and now generates this error:

ERROR: dependencies ‘e1071’, ‘RSQLite’, ‘ff’, ‘ffbase’ are not available for package ‘RecordLinkage’
 * removing ‘/Library/Frameworks/R.framework/Versions/4.4-arm64/Resources/library/RecordLinkage’

Presumably this is because the package's dependencies have changed. I get the same error with my solution. Also note that the ffbase package is also now archived.