The wiki says that unittest can be disabled in the configure script:
> You'll need cunit to compile the unittest suite which is enabled by default (disable with ./configure script)
However there is no build/modules/unittest.mk I think it is build/modules/testall.mk so the most obvious ./configure --disable-unittest fails.
Could the wiki be updated to indicate the actual configure command required to disable it, which should be the case regardless of how obvious it may be - most people compiling from source still aren't thinking for themselves and just want to copy and paste.