diff -u -b -B -r1.1 mjpegtools-1.8.0.ebuild
--- mjpegtools-1.8.0.ebuild     5 Oct 2005 08:06:32 -0000       1.1
+++ mjpegtools-1.8.0.ebuild     7 Oct 2005 22:34:19 -0000
@@ -28,10 +28,10 @@
        X? ( virtual/x11 )"

 DEPEND="${RDEPEND}
-       x86? ( mmx? ( dev-lang/nasm )
+       mmx? ( dev-lang/nasm )
                3dnow? ( dev-lang/nasm )
                sse? ( dev-lang/nasm )
-               )
+       amd64? ( dev-lang/nasm )
        >=sys-apps/sed-4
        sys-devel/autoconf
        =sys-devel/automake-1.5*"
@@ -69,6 +69,10 @@
                [[ $(gcc-major-version) -eq 3 ]] && append-flags -mno-sse2
        fi

+       if use amd64; then
+               myconf="${myconf} --enable-simd-accel"
+       fi
+
        econf \
                $(use_with X x) \
                $(use_enable dga xfree-ext) \