Why is emmintrin.h not installed?

Hi,

while building transcode today, I got the following error:

--------8<---------------------
===>   transcode-0.6.10 depends on file: /usr/local/bin/nasm - found
===>   transcode-0.6.10 depends on file: /usr/local/bin/ffmpeg - not
found
===>    Verifying install for /usr/local/bin/ffmpeg in
/usr/ports/multimedia/ffmpeg
===>  Building for ffmpeg-0.4.8
gmake -C libavcodec all
gmake[1]: Entering directory
`/usr/ports/multimedia/ffmpeg/work/ffmpeg-0.4.8/libavcodec'
cc -O -pipe -march=athlon-tbird -I/usr/local/include  -O3 -ffast-math
-fomit-frame-pointer -g -O3 -Wall -DHAVE_AV_CONFIG_H -I..
-D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_GNU_SOURCE -msse -c -o
i386/fft_sse.o i386/fft_sse.c 
In file included from i386/fft_sse.c:24:
/usr/include/xmmintrin.h:1227:23: emmintrin.h: No such file or directory
gmake[1]: *** [i386/fft_sse.o] Error 1
gmake[1]: Leaving directory
`/usr/ports/multimedia/ffmpeg/work/ffmpeg-0.4.8/libavcodec'
gmake: *** [lib] Error 2
*** Error code 2

Stop in /usr/ports/multimedia/ffmpeg.
*** Error code 1

Stop in /usr/ports/multimedia/transcode.
------------------------>8------------------------

Why isn't that file installed together with xmmintrin.h and mmintrin.h
by $SRC/gnu/usr.bin/cc/include/Makefile?

-----------------8<---------------------
--- gnu/usr.bin/cc/include/Makefile.org Sat Nov 22 13:54:14 2003
+++ gnu/usr.bin/cc/include/Makefile     Sat Nov 22 13:54:28 2003
_at__at_ -5,7 +5,7 _at__at_
 .PATH: ${GCCDIR}/config/${GCC_CPU}
 
 .if ${TARGET_ARCH} == "i386" || ${TARGET_ARCH} == "amd64"
-INCS=  mmintrin.h xmmintrin.h
+INCS=  emmintrin.h mmintrin.h xmmintrin.h 
 .elif ${TARGET_ARCH} == "ia64"
 INCS=  ia64intrin.h
 .endif
-------------------->8----------------------

[System info: FreeBSD klamath 5.1-CURRENT FreeBSD 5.1-CURRENT #13: Mon
Nov 17 22:55:15 CET 2003     root_at_klamath:/usr/obj/usr/src/sys/KLAMATH 
i386]

Regards, 
-- 
Andreas Kohn <andreas.kohn_at_gmx.net>