On Fri, 29 Mar 2024, Volker Wysk wrote:
I've migrated my HsShellScript library to Cabal 3.0 and now I get an error when I try to install it:
-----snip----- desktop /usr/local/src/hsshellscript $ cabal install --user Wrote tarball sdist to /usr/local/src/hsshellscript/dist-newstyle/sdist/hsshellscript-3.6.0.tar.gz Resolving dependencies... Error: cabal: Cannot build the executables in the package hsshellscript because it does not contain any executables. Check the .cabal file for the package and make sure that it properly declares the components that you expect. -----snip-----
I don't understand this error message. Why does it think it should build executables? There aren't any. It's a library only.
Things changed from Cabal-1 to Cabal-3. Old behaviour is retained by 'cabal v1-install'. Today, 'cabal install' is synonym for 'cabal v2-install' and refers to Nix-style builds.