#9074: GHC 7.8.2's ghci does not track missing symbols when loading non-Haskell object files -------------------------------------+------------------------------------ Reporter: massysett | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.8.2 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 tulcod): * cc: tulcod (added) Comment: I have a similar issue. In particular, my cabal project defines a C source file which in turn calls a C function from a library (outside of my project). But since cabal repl tries to load the in-project .o file first, it encounters undefined symbols (in particular, it errors on a struct which is declared "extern" by the library). This is not influenced by the order of the "c-sources" and "extra- libraries" in my .cabal file. PS: overview of symbols: My C source file (in-project): function myfunc, which calls the C function libfunc Library C header file (outside project): declares somestruct as "extern"; defines libfunc "static inline", which uses a pointer to somestruct as an argument to libfunc_internal; declares libfunc_internal Library .so code: defines libfunc_internal, defines somestruct So "cabal repl" errors on "undefined symbol: somestruct" -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9074#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler