I&#x27;ve built the new Guile from source a handful of times now.  It&#x27;s definitely a slow process, but I&#x27;m very grateful that Guile doesn&#x27;t require an older version of itself in order to build like a lot of other self-hosted languages.  Self-hosting is good, but it&#x27;s imperative that users can bootstrap on their own so that they don&#x27;t have to place trust in a pre-built binary of the compiler in order to build the compiler.  For example, Go has a self-hosted compiler now, but you don&#x27;t need to trust a pre-built Go compiler binary to build Go, because you can bootstrap it using gccgo.