This represents a mismatch between the behavior of the compiler and its documentation. People looking to make shared libraries will read [https://www.haskell.org/ghc/docs/latest/html/users_guide/using-shared-
#9348: "Symbol not found" when using a shared library -------------------------------------+----------------------------------- Reporter: alex.davis | Owner: simonmar Type: bug | Status: new Priority: normal | Milestone: Component: Documentation | Version: 7.8.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: x86 Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+----------------------------------- Changes (by thomie): * cc: simonmar (removed) * os: MacOS X => Unknown/Multiple * component: Runtime System => Documentation Comment: Replying to [comment:3 alex.davis]: libs.html#idp12506320 section 4.13.3 of the GHC user's guide]. They will see "To build Haskell modules that export a C API into a shared library use the -dynamic, -fPIC and -shared flag". No mention of linking the runtime system. The next sentence does say: "As before, the -dynamic flag specifies that this library links against the shared library versions of the rts and base package." And after that: "In principle you can use -shared without -dynamic in the link step. That means to statically link the rts all the base libraries into your new shared library. This would make a very big, but standalone shared library. On most platforms however that would require all the static libraries to have been built with -fPIC so that the code is suitable to include into a shared library and we do not do that at the moment." Improvements to the documentation are always welcome. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9348#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler