hi as libxine in fink is quite outdated, I tried the latest releases, had to fix a display bug for powerpc (in 1.1.9) and then stumbled upon a compiler/linker issue with XCode 3.0 on Leopard for all libxine versions.
The story is this: libxine builds and links against static libraries of ffmpeg. ffmpeg uses platform dependent asm code for maximum performance. this asm code also uses absoute adressing modes on 386-32 (it uses relative addressing for x86-64). libxine itself is used as a shared library e.g. in Perian, VLC or in my libxine java bindings (libxine-java.net.sf). But... the linker of XCode (ld64-77) does not want to build a shared library if the object files contain absolute addressing (relocation addresses). Note: this problem only shows up on i386-32 when using XCode 3.0... which is the default resp. required to use Fink on Leopard if I'm not wrong. xine should compile with XCode 2.5 and it also compiles with XCode 3.1 from the iPhone SDK. How can libxine be packaged? Is there support Fink to request (or reject) a particular linker version? What are other projects doing? - MPlayer builds an application, so the linker does not complain - VLC -- I forgot what they did, but it did not solve the problem - MacPorts is disabling the MMX optimization in ffmpeg before they link xine against it. - Perian fixed parts of ffmpeg's assembly code to use relative addressing and build the static libraries without the -mdynamic-no-pic flag Discussion on the ffmpeg devel list suggest they are not going to use relative addressing in the assembly code for the whole library. Also someone mentioned "... that PIC/i386 is slow..". I cannot comment on that, I had enough trouble to understand Perian's fix. Disabling MMX support generally or only on XCode 3.0 Intel i386-32 systems does not look like a good idea. So, stopping the build with a warning "XCode 3.0 sucks, get the iPhone SDK to compile libxine!" seams like the best approach - but it's not convincing, is it? Any ideas? Cheers, Matthias Ringwald ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Fink-devel mailing list Fink-devel@lists.sourceforge.net http://news.gmane.org/gmane.os.apple.fink.devel
