[mythtv] Can't compile libavcodec in mythtv (v6754)

[Tj]

Dear all,

I have some problems compiling mythtv (version 6754). At the moment I'm 
stuck while compiling libavcodec.

My OS is Mandrake 10.1 with GCC 4.0.0...

---
ccache gcc -c -pipe -march=pentium4 -w -O3 -Wall -Wno-switch 
-fomit-frame-pointer -D_REENTRANT -DPIC -fPIC  -DMMX -Di386 
-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -DPREFIX=\"/usr/local\" 
-DHAVE_AV_CONFIG_H -D_LARGEFILE_SOURCE -DHAVE_XVMC -DQT_NO_DEBUG 
-DQT_THREAD_SUPPORT -DQT_SHARED -I/usr/lib/qt3/mkspecs/default -I. -I.. 
-I../.. -I/usr/lib/qt3//include -o dsputil_mmx.o i386/dsputil_mmx.c
i386/h264dsp_mmx.c: In function 'h264_h_loop_filter_luma_mmx2':
i386/dsputil_mmx.c:618: error: can't find a register in class 
'GENERAL_REGS' while reloading 'asm'
i386/dsputil_mmx.c:618: error: can't find a register in class 
'GENERAL_REGS' while reloading 'asm'
make[2]: *** [dsputil_mmx.o] Error 1
make[2]: Leaving directory `/home/tingjie/src/mythtv/libs/libavcodec'
make[1]: *** [sub-libavcodec] Error 2
make[1]: Leaving directory `/home/tingjie/src/mythtv/libs'
make: *** [sub-libs] Error 2
----

And if I manully take out "-march=pentium4 -O3" in the makefile, I hit 
another error at "i386/fdct_mmx.c".. And here I'm stuck..
----
ccache gcc -c -pipe -w -Wall -Wno-switch -fomit-frame-pointer 
-D_REENTRANT -DPIC -fPIC  -DMMX -Di386 -D_GNU_SOURCE 
-D_FILE_OFFSET_BITS=64 -DPREFIX=\"/usr/local\" -DHAVE_AV_CONFIG_H 
-D_LARGEFILE_SOURCE -DHAVE_XVMC -DQT_NO_DEBUG -DQT_THREAD_SUPPORT 
-DQT_SHARED -I/usr/lib/qt3/mkspecs/default -I. -I.. -I../.. 
-I/usr/lib/qt3//include -o fdct_mmx.o i386/fdct_mmx.c
{standard input}: Assembler messages:
{standard input}:1597: Error: suffix or operands invalid for `pshufw'
make: *** [fdct_mmx.o] Error 1
-----

Any pointers will be appreciated.Thanks.


Regards,
Tj