Add `build-expression->derivation'.
-rw-r--r-- 27 .gitignore
-rw-r--r-- 32 AUTHORS
-rw-r--r-- 35147 COPYING
-rw-r--r-- 315 README
-rw-r--r-- 1209 guix.scm
drwxr-xr-x - guix
drwxr-xr-x - srfi
drwxr-xr-x - tests