Refactor Gmp and Libffi rules.
-rw-r--r-- 53 .ghci
-rw-r--r-- 241 .gitignore
-rw-r--r-- 2783 .travis.yml
-rw-r--r-- 1503 LICENSE
-rw-r--r-- 7970 README.md
-rw-r--r-- 1946 appveyor.yml
-rw-r--r-- 964 build.bat
-rwxr-xr-x 1636 build.cabal-new.sh
-rwxr-xr-x 1287 build.cabal.sh
-rwxr-xr-x 1546 build.sh
-rwxr-xr-x 1065 build.stack.sh
drwxr-xr-x - cfg
drwxr-xr-x - doc
-rw-r--r-- 5767 hadrian.cabal
drwxr-xr-x - src
-rw-r--r-- 1094 stack.yaml