hello i try to reinstall cabal in a customized directory but bootstrap launch fail because ghc-pkg list is failed thanks for help $ ghc --version The Glorious Glasgow Haskell Compilation System, version 7.10.3 $ ./bootstrap.sh --no-doc Using gcc for C compiler. If this is not what you want, set CC. Using /usr/libexec/gcc/x86_64-redhat-linux/4.8.5/collect2 instead. Checking installed packages for ghc-7.10.3... ghc-pkg: missing --global-package-db option, location of global package database unknown Error during cabal-install bootstrap: running 'ghc-pkg list' failed $ ghc-pkg list ghc-pkg: missing --global-package-db option, location of global package database unknown