Vincent Legoll wrote: > On Thu, Nov 6, 2008 at 5:16 PM, Stefan Reinauer <[EMAIL PROTECTED]> wrote: > >> Vincent Legoll wrote: >> >>> Isn't all that kind of things doable via function pointers and link-time >>> dead >>> code elimination ? That would achieve the no ifdeffery goal, and may be >>> cleaner code... >>> >> Link time optimization would suggest we look into compiling with LLVM >> instead of gcc. >> > > I was believing that current linkers discarded code of unused functions. > Would LLVM really be needed for that to happen ? Or are you thing of > more involved optimizations ? > Any non-static functions in a file will stay in the final binary, unless you do some trickery like -combine, but that usually requires some changes to the build system.
llvm will kick those functions out at link time. As does the plan9
linker, as far as I understood.
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