Trying to build from source on Debian testing results in the following:
$ ./configure
creating cache ./config.cache
checking host system type... rm: cannot remove 'dummy': Is a directory
rm: cannot remove 'dummy': Is a directory
configure: error: can not guess host type; you must specify one
Looking in config.guess it tries to build and then remove a binary called dummy but it can't as you are shipping with a directory called dummy so it fails on line 49.
I manually deleted the dummy directory and then tried again, this time it fails as it doesn't know the machine type:
checking build system type... Invalid configuration x86_64-pc-linux-gnu': machinex86_64-pc' not recognized