--- a/sphinxbase-0.8.ebuild
+++ b/sphinxbase-0.8.ebuild
@@ -8,7 +8,7 @@
 DISTUTILS_OPTIONAL=1
 AUTOTOOLS_AUTORECONF=1
 
-inherit autotools-utils distutils-r1
+inherit autotools-utils eutils distutils-r1
 
 DESCRIPTION="Support library required by the Sphinx Speech Recognition Engine"
 HOMEPAGE="http://cmusphinx.sourceforge.net/"
@@ -17,21 +17,44 @@
 LICENSE="BSD-2 HPND MIT"
 SLOT="0"
 KEYWORDS="amd64 x86"
-IUSE="doc lapack python static-libs"
+IUSE="alsa doc jack lapack +pulseaudio oss python static-libs"
 
-# automagic dep on pulseaudio
 RDEPEND="
-	media-sound/pulseaudio
+	pulseaudio? ( media-sound/pulseaudio )
 	lapack? ( virtual/lapack )
 	python? ( ${PYTHON_DEPS} )"
 DEPEND="${RDEPEND}
 	doc? ( >=app-doc/doxygen-1.4.7 )"
 
+REQUIRED_USE="( ^^ ( pulseaudio jack alsa oss ) )"
+
 # Due to generated Python setup.py.
 AUTOTOOLS_IN_SOURCE_BUILD=1
 
 PATCHES=( "${FILESDIR}"/${P}-unbundle-lapack.patch )
 
+src_prepare() {
+	if ! use pulseaudio ; then
+		local line="167"
+
+		sed -i '184d' configure.in
+
+		if ! use jack ; then
+			sed -i '184d' configure.in || die
+			line="173"
+		fi
+
+		if ! use alsa ; then
+			sed -i '184d' configure.in || die
+			line="179"
+		fi
+
+		sed -i "160,${line}d" configure.in
+
+		eautoreconf
+	fi
+}
+
 src_configure() {
 	local myeconfargs=(
 		$(use_with lapack)