Stuart Henderson <[EMAIL PROTECTED]> wrote: > The livemedia commits break linking for vlc on amd64, -fPIC is needed. > This fixes the build, but I'm not sure how to test whether live555 then > works (and I don't understand when to use -fpic and when -fPIC, and > it's not particularly easy to google for).
gcc.info has something to say on it, I think. On some platforms, -fpic and -fPIC generate different code, using branch instructions that can only cover shorter (pic) or larger (PIC) distances, creating size limits for the object files. If -fpic is insufficient, you'll get a linking error and have to switch to -fPIC. Since we have a whole lot of architectures, testing this everywhere is a lot of effort, and any performance/code size difference doesn't matter in practice, so we just use -fPIC in the ports tree and don't worry about it. -- Christian "naddy" Weisgerber [EMAIL PROTECTED]
