#12377: getExecutablePath doesn't return absolute path on OpenBSD (and maybe other OS also) -------------------------------------+------------------------------------- Reporter: oherrala | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: | Version: 8.0.1 libraries/base | Keywords: | Operating System: OpenBSD Architecture: | Type of failure: Incorrect result Unknown/Multiple | at runtime Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- System.Environment.getExecutablePath doesn't return absolute path to executable in OpenBSD. This happens because getExecutablePath uses argv[0] to determine path and argv[0] might not be absolute path. My environment: {{{ $ uname -a OpenBSD fizbuz.pilkki.ciz.fi 6.0 GENERIC.MP#2274 amd64 $ ghc -V The Glorious Glasgow Haskell Compilation System, version 7.10.3 }}} This test program in OpenBSD: {{{#!hs module Main where import System.Environment main = getExecutablePath >>= print }}} returns {{{ $ ./test "./test" }}} For example in OS X the call returns absolute path: {{{ $ ./test "/Users/oherrala/tmp/test" }}} OpenBSD is one of the operating systems which gets fall back to using argv[0] to determine exec's location: https://git.haskell.org/ghc.git/blob/HEAD:/libraries/base/System/Environment... Maybe the argv[0] result should be wrapped with realpath(3) to get absolute path? This bug is also present in cabal-install and reported here: https://github.com/haskell/cabal/issues/3512#issuecomment-231604356 -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12377 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler