#7779: building GHC overwrites the installed package database if GHC_PACKAGE_PATH is set -------------------------------------+------------------------------------ Reporter: heatsink | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.8.1 Component: Build System | Version: 7.4.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------------+------------------------------------ Changes (by igloo): * owner: igloo => Comment: Ah, I suspect you have an old version of `cabal`; it looks like 1.14 doesn't mind `GHC_PACKAGE_PATH` being set. But in 1.16 it just fails: {{{ $ cabal --version cabal-install version 1.16.0.2 using version 1.16.0 of the Cabal library $ export GHC_PACKAGE_PATH=something $ cabal install text cabal: Use of GHC's environment variable GHC_PACKAGE_PATH is incompatible with Cabal. Use the flag --package-db to specify a package database (it can be used multiple times). $ echo $? 1 }}} You can use flags such as `-package-db` and `-global-package-db` with GHC too. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/7779#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler