#8741: `System.Directory.getPermissions` fails on read-only filesystem -------------------------------------+------------------------------------- Reporter: hvr | Owner: Type: bug | Status: new Priority: high | Milestone: Component: | Version: 7.6.3 libraries/directory | Operating System: POSIX Keywords: | Type of failure: Incorrect result Architecture: Unknown/Multiple | at runtime Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | -------------------------------------+------------------------------------- Alain O'Dea reports in an [http://permalink.gmane.org/gmane.comp.lang.haskell.libraries/21078 email] that: {{{ Prelude> System.Directory.getPermissions "/usr/bin/ld" *** Exception: /usr/bin/ld: fileAccess: permission denied (Read-only file system) }}}
That seems wrong.
An `access(*, W_OK)` syscall by design should return `EROFS` on a read- only file system by specification.
This breaks Cabal on SmartOS since `/usr` is read-only by design and Cabal calls `getPermissions "/usr/bin/ld"`.
-- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8741 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler