From a70857114d8394ad693e515f7bb6fead6eb97514 Mon Sep 17 00:00:00 2001 From: alexwl Date: Sat, 23 Mar 2019 02:19:15 +0300 Subject: Update README --- README.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/README.md b/README.md index cffa428..e4041ac 100644 --- a/README.md +++ b/README.md @@ -90,6 +90,8 @@ stack --stack-yaml=stack-8.0.2.yaml install A package should be built using either cabal-install or stack before indexing (`cabal new-build`,`cabal build`, or `stack build` command should be executed). +The version of GHC used to build `haskell-code-indexer` must match the version of GHC used to build a package you are indexing (to find out the version of GHC try `ghc --version` or `stack exec ghc -- --version` command). + `haskell-code-indexer` requires globally installed GHC and cabal-install (`cabal`). The reason for this is that `haskell-code-indexer` uses `cabal-helper` library [https://hackage.haskell.org/package/cabal-helper](https://hackage.haskell.org/package/cabal-helper) to get package build information. `cabal-helper` builds (at runtime) an executable linked against a version of Cabal library that was used to configure the package. If there is no globally installed GHC on the system, then it is possible to use `stack exec` command ([https://docs.haskellstack.org/en/stable/GUIDE/#exec](https://docs.haskellstack.org/en/stable/GUIDE/#exec)) that adds a path to GHC binaries installed by Stack to `PATH` environment variable: -- cgit v1.2.3