mplayer-devel fails to build on 10.5.8

[admsimat@…]

After the last selfupdate, mplayer-devel fails to build on my Macbook Intel 10.5.8. The output of the command

sudo port -d build mplayer-devel

follows.

--->  Computing dependencies for mplayer-devel
--->  Building mplayer-devel
/usr/bin/gcc-4.0 -Wundef -Wdisabled-optimization -Wno-pointer-sign -Wdeclaration-after-statement -std=gnu99 -Wall -Wno-switch -Wpointer-arith -Wredundant-decls -O4 -march=i386 -mtune=i386 -pipe -ffast-math -fomit-frame-pointer -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -Ilibdvdread4 -mdynamic-no-pic -falign-loops=16 -shared-libgcc -I. -fomit-frame-pointer -I/opt/local/include/lzo -I/opt/local/include  -I/usr/X11/include   -c -o input/ar.o input/ar.c
In file included from /System/Library/Frameworks/CoreServices.framework/Frameworks/CarbonCore.framework/Headers/MachineExceptions.h:29,
                 from /System/Library/Frameworks/CoreServices.framework/Frameworks/CarbonCore.framework/Headers/DriverServices.h:32,
                 from /System/Library/Frameworks/CoreServices.framework/Frameworks/CarbonCore.framework/Headers/CarbonCore.h:125,
                 from /System/Library/Frameworks/CoreServices.framework/Frameworks/AE.framework/Headers/AE.h:20,
                 from /System/Library/Frameworks/CoreServices.framework/Headers/CoreServices.h:21,
                 from /System/Library/Frameworks/Carbon.framework/Headers/Carbon.h:20,
                 from input/ar.c:27:
/usr/lib/gcc/i686-apple-darwin9/4.0.1/include/xmmintrin.h:35:3: error: #error "SSE instruction set not enabled"
In file included from /System/Library/Frameworks/CoreServices.framework/Frameworks/CarbonCore.framework/Headers/DriverServices.h:32,
                 from /System/Library/Frameworks/CoreServices.framework/Frameworks/CarbonCore.framework/Headers/CarbonCore.h:125,
                 from /System/Library/Frameworks/CoreServices.framework/Frameworks/AE.framework/Headers/AE.h:20,
                 from /System/Library/Frameworks/CoreServices.framework/Headers/CoreServices.h:21,
                 from /System/Library/Frameworks/Carbon.framework/Headers/Carbon.h:20,
                 from input/ar.c:27:
/System/Library/Frameworks/CoreServices.framework/Frameworks/CarbonCore.framework/Headers/MachineExceptions.h:216: error: syntax error before '__m128'
/System/Library/Frameworks/CoreServices.framework/Frameworks/CarbonCore.framework/Headers/MachineExceptions.h:218: error: syntax error before 'sd'
/System/Library/Frameworks/CoreServices.framework/Frameworks/CarbonCore.framework/Headers/MachineExceptions.h:220: error: syntax error before '}' token
/System/Library/Frameworks/CoreServices.framework/Frameworks/CarbonCore.framework/Headers/MachineExceptions.h:264: error: array type has incomplete element type
make: *** [input/ar.o] Error 1
Warning: the following items did not execute (for mplayer-devel): org.macports.build