I have recently upgraded to Leopard, XCode 3.0, and Darwin Ports 1.5.0 on my MacBook Pro. I am trying to install mplayer, but the build goes for a while and then finally fails with this error (some long lines manually broken in order to get this posted via Gmane): . Error: Target org.macports.build returned: shell command . "cd "/opt/local/var/macports/build/ . _opt_local_var_macports_sources_rsync.macports. . org_release_ports_multimedia_MPlayer/work/MPlayer-1.0rc1" && make all " . returned error 2 . Command output: make -C libavformat LIBPREF=lib LIBSUF=.a . make[1]: Nothing to be done for `all'. . make -C libavcodec LIBPREF=lib LIBSUF=.a . cc -Wdeclaration-after-statement -fno-PIC -O4 -march=pentium-m . -mtune=pentium-m -pipe -ffast-math -fomit-frame-pointer . -mdynamic-no-pic -falign-loops=16 -DSYS_DARWIN -DCONFIG_DARWIN . -shared-libgcc -arch i386 -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 . -I/opt/local/include/lzo -I/opt/local/include -I/usr/X11/include -I. . -I./libavutil -I./libavcodec -DHAVE_AV_CONFIG_H -D_FILE_OFFSET_BITS=64 . -D_LARGEFILE_SOURCE -D_ISOC9X_SOURCE -I.. -I.. -I../libavutil . -Wdeclaration-after-statement -fno-PIC -O4 -march=pentium-m . -mtune=pentium-m -pipe -ffast-math -fomit-frame-pointer . -mdynamic-no-pic -falign-loops=16 -DSYS_DARWIN -DCONFIG_DARWIN . -shared-libgcc -arch i386 -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 . -I/opt/local/include/lzo -I/opt/local/include -I/usr/X11/include . -c -o i386/dsputil_mmx.o i386/dsputil_mmx.c . i386/h264dsp_mmx.c: In function 'h264_h_loop_filter_luma_mmx2': . i386/dsputil_mmx.c:634: error: can't find a register in class . 'GENERAL_REGS' while reloading 'asm' . i386/dsputil_mmx.c:634: error: can't find a register in class . 'GENERAL_REGS' while reloading 'asm' . make[1]: *** [i386/dsputil_mmx.o] Error 1 . make: *** [libavcodec/libavcodec.a] Error 2 . . Error: Status 1 encountered during processing. Based on my googling and looking elsewhere, I think this is related to the choice of C compiler that is used. Here are the results of "cc --version": . i686-apple-darwin9-gcc-4.0.1 (GCC) 4.0.1 (Apple Inc. build 5465) . Copyright (C) 2005 Free Software Foundation, Inc. . This is free software; see the source for copying conditions. There is NO . warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Does anyone have any ideas as to what I can do to get mplayer to build under my configuration? Thanks in advance. -- Lloyd Zusman hippoman@potamuses.net God bless you.