#2 Problem compiling libcodec 0.0.3

[Pierre]

[...]
gmake[3]: Entering directory `/tmp/libcodec-0.0.3/libcodec'
/bin/sh ../libtool --mode=compile gcc -DHAVE_CONFIG_H
-I. -I. -I.. -s -O3 -march=i686
-I/usr/local/include/glib-1.2
-I/usr/local/lib/glib/include -O6 -march=pentiumpro -c
libcodec.c
rm -f .libs/libcodec.lo
gcc -DHAVE_CONFIG_H -I. -I. -I.. -s -O3 -march=i686
-I/usr/local/include/glib-1.2
-I/usr/local/lib/glib/include -O6 -march=pentiumpro -c
libcodec.c -fPIC -DPIC -o .libs/libcodec.lo
In file included from ../libcodec/scale.h:4,
from ../libcodec/libcodec.h:55,
from libcodec.c:6:
../libcodec/_scale.c:5:17: mmx.h: No such file or directory
In file included from ../libcodec/place.h:4,
from ../libcodec/libcodec.h:56,
from libcodec.c:6:
../libcodec/_place.c:5:17: mmx.h: No such file or directory
In file included from ../libcodec/mcomp/mcomp.h:4,
from ../libcodec/libcodec.h:57,
from libcodec.c:6:
../libcodec/mcomp/mcomp.c:11:17: mmx.h: No such file or
directory
../libcodec/mcomp/mcomp.c:12:17: sse.h: No such file or
directory
In file included from ../libcodec/mcomp/mcomp.h:4,
from ../libcodec/libcodec.h:57,
from libcodec.c:6:
../libcodec/mcomp/mcomp.c:25: warning: integer constant
is too large for "long" type
../libcodec/mcomp/mcomp.c:26: warning: integer constant
is too large for "long" type
../libcodec/mcomp/mcomp.c:27: warning: integer constant
is too large for "long" type
../libcodec/mcomp/mcomp.c:28: warning: integer constant
is too large for "long" type
../libcodec/mcomp/mcomp.c:29: warning: integer constant
is too large for "long" type
gmake[3]: *** [libcodec.lo] Error 1
gmake[3]: Leaving directory `/tmp/libcodec-0.0.3/libcodec'
gmake[2]: *** [all-recursive] Error 1
gmake[2]: Leaving directory `/tmp/libcodec-0.0.3/libcodec'
gmake[1]: *** [all-recursive] Error 1
gmake[1]: Leaving directory `/tmp/libcodec-0.0.3'
gmake: *** [all-recursive-am] Error 2