Getting your Haskell executable statically linked with Nix

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#1

https://cs-syd.eu/posts/2024-04-20_static-linking-haskell-nix

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#2

Nice! I like to use file to tell if a binary is executable, viz.

$ file $(which ja)
/home/vanessa/.local/bin/ja: ELF 64-bit LSB executable, x86-64, version 1 (GNU/Linux), statically linked, for GNU/Linux 3.2.0, BuildID[sha1]=224fa312cf92297cbd4ed8fe488f77155434ac6f, stripped
``
#3

I’ve also had success using the Cabal flag --enable-executable-static in place of --ghc-option=-optl=-static.

According to the docs, it passes -optl=-static and -static to GHC.

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#4

That used to be broken on install (as opposed to build).

It was fixed here: Apply local configuration to install targets by alt-romes · Pull Request #9697 · haskell/cabal · GitHub

But I don’t know if that made it into a release yet.

You can use the gchup cabal prerelease 3.11.0.0.2024.4.19: ghcup-metadata/ghcup-prereleases-0.0.8.yaml at develop · haskell/ghcup-metadata · GitHub

ghcup config add-release-channel https://raw.githubusercontent.com/haskell/ghcup-metadata/master/ghcup-prereleases-0.0.8.yaml
ghcup install cabal latest-prerelease
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