Bugs item #670756, was opened at 2003-01-19 18:59 You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=108032&aid=670756&group_id=8032
Category: Driver Group: 5.04.2 Status: Open >Resolution: Invalid Priority: 5 Submitted By: Axel Simon (as49) Assigned to: Nobody/Anonymous (nobody) Summary: package cc and ld opts inconsistent Initial Comment: I try to create a package which passes "--subsystem windows" to the linker. As far as I understand it should be ok to have extra_ld_opts = ["--subsystem windows"] or, as ghc itself does it extra_ld_opts = ["--subsystem", "windows"] in the package description. However these flags are not given to the linker. I tried extra_cc_opts = ["-Wl,--subsystem", "-Wl,windows"] but these flags are not passed to the C compiler either. I finally succeeded with extra_ld_opts = ["-Wl,--subsystem", "-Wl,windows"] which I suspect fails when compiling with the native code generator. I am using the MSI of ghc 5.04.2. Axel. ---------------------------------------------------------------------- >Comment By: Axel Simon (as49) Date: 2003-02-05 10:35 Message: Logged In: YES user_id=489164 Ok, so it's just a misunderstanding on my side. I use ghc --make to build programs with my package so the whole build is just one invocation. I then assumed that extra_hc_flags are added to ghc's command line, extra_cc_flags are passed to gcc's command line and extra_ld_flags are passed to ld's command line. The latter doesn't hold because you invoke gcc to link. When I compiled with -v I got confused: I saw gcc when it linked the code, so I assumed extra_cc_flags is the place to alter this command line. Sorry about the hassle, Axel. ---------------------------------------------------------------------- Comment By: Simon Marlow (simonmar) Date: 2003-02-04 12:16 Message: Logged In: YES user_id=48280 extra_cc_opts gets passed to gcc when doing C compilations (either Haskell compilations via C, or compilation of plain C files). extra_ld_opts gets passed to gcc when doing linking. You can use -v to see what options are being passed to which commands. What exactly is wrong? ---------------------------------------------------------------------- Comment By: Axel Simon (as49) Date: 2003-02-04 11:52 Message: Logged In: YES user_id=489164 I thought the linker is the linker and not the C compiler. With this in mind I would have expected that extra_ld_opts = ["--subsystem", "windows"] winds up as -Wl,--subsystem -Wl,windows on the gcc command line. Similarly, I expected extra_cc_opts = ["-Wl,--subsystem", "-Wl,windows"] to end up on the command line of gcc. Where do these flags go to? Furthermore, how am I to specify linker options if compilation is not via C? I find the behaviour just very confusing. Axel. ---------------------------------------------------------------------- Comment By: Simon Marlow (simonmar) Date: 2003-02-04 11:26 Message: Logged In: YES user_id=48280 The "linker" is in fact gcc, so when you add options to extra_ld_opts they are passed on the gcc command line. If you want to actually pass options to ld, then you need to use the -Wl, prefix as you mentioned. I don't understand your comments about extra_cc_opts - as far as I can tell these are always passed to C compilations. Could you give a specific example? ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=108032&aid=670756&group_id=8032 _______________________________________________ Glasgow-haskell-bugs mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
