cabal v2-install --lib git+https://github.com/username/gtools.git Once cabal install gtools --lib succeeds, you can use it in a .hs file:
cabal list --installed cabal list gtools # searches Hackage If nothing appears, the package may be from a different ecosystem or a private repository. Cause: Your GHC version is too old or too new for the gtools version you’re trying to install. Fix: Use cabal install gtools --allow-older or switch GHC versions via ghcup . Error 3: "Cabal: Failed to build gtools: Missing foreign library" Some gtools versions depend on C libraries (e.g., gsl , blas ). Install them system-wide: gtools cabal download
cabal --version # Output: cabal-install version 3.10.1.0 The typical cabal workflow involves updating your package list, then downloading and building gtools . Step 1: Update the Package Index cabal update This command downloads the latest list of packages from Hackage (Haskell’s central package repository). Step 2: Download Gtools Source (Without Installing) If you only want to download the source code without building it: cabal v2-install --lib git+https://github
If you’ve landed on this page searching for "gtools cabal download," you are likely a Haskell developer venturing into statistical computing, data visualization, or bioinformatics. Alternatively, you might be trying to replicate a research environment that depends on the gtools library—a powerful but often misunderstood package in the Haskell ecosystem. Error 3: "Cabal: Failed to build gtools: Missing
import Data.GTools.Statistics (permutationTest) import Data.GTools.Sorting (mixedsort) main :: IO () main = do let result = permutationTest [1,2,3] [4,5,6] print result