a52dec and libmpeg2 both failing to compile

[schleppy]

Hi all,
Anyone having trouble compiling these two, with some kind of src_compile error? Something to do with 'O_BINARY undeclared'
My output:
make[1]: Leaving directory `/var/tmp/portage/a52dec-0.7.4/work/a52dec-0.7.4/libao'
Making all in src
make[1]: Entering directory `/var/tmp/portage/a52dec-0.7.4/work/a52dec-0.7.4/src'
gcc -DHAVE_CONFIG_H -I. -I. -I../include -I../include -I../include -march=athlon -pipe -fPIC -O3 -fomit-frame-pointer -mcpu=pentiumpro -c a52dec.c
a52dec.c: In function `main':
a52dec.c:572: `O_BINARY' undeclared (first use in this function)
a52dec.c:572: (Each undeclared identifier is reported only once
a52dec.c:572: for each function it appears in.)
make[1]: *** [a52dec.o] Error 1
make[1]: Leaving directory `/var/tmp/portage/a52dec-0.7.4/work/a52dec-0.7.4/src'
make: *** [all-recursive] Error 1

!!! ERROR: media-libs/a52dec-0.7.4 failed.
!!! Function src_compile, Line 28, Exitcode 2
!!! (no error message)

and for libmpeg2 as well:make[1]: Entering directory `/var/tmp/portage/libmpeg2-0.3.1/work/mpeg2dec-0.3.1/src'
if gcc -DHAVE_CONFIG_H -I. -I. -I../include -I../include -I../include -march=athlon -pipe -Wall -O3 -fomit-frame-pointer -MT mpeg2dec.o -MD -MP -MF ".deps/mpeg2dec.Tpo" \
-c -o mpeg2dec.o `test -f 'mpeg2dec.c' || echo './'`mpeg2dec.c; \
then mv ".deps/mpeg2dec.Tpo" ".deps/mpeg2dec.Po"; \
else rm -f ".deps/mpeg2dec.Tpo"; exit 1; \
fi
mpeg2dec.c: In function `main':
mpeg2dec.c:669: warning: implicit declaration of function `setmode'
mpeg2dec.c:669: `O_BINARY' undeclared (first use in this function)
mpeg2dec.c:669: (Each undeclared identifier is reported only once
mpeg2dec.c:669: for each function it appears in.)
make[1]: *** [mpeg2dec.o] Error 1
make[1]: Leaving directory `/var/tmp/portage/libmpeg2-0.3.1/work/mpeg2dec-0.3.1/src'
make: *** [all-recursive] Error 1

!!! ERROR: media-libs/libmpeg2-0.3.1 failed.
!!! Function src_compile, Line 49, Exitcode 2
!!! (no error message)

Any help appreciated.