Added bep file to build sdl-mixer from hg, patched native_midi cpp file that got cut off in previous patch.

media-libs/sdl-mixer/sdl-mixer-1.2-hg.bep

@@ -0,0 +1,39 @@
+DESCRIPTION="Simple Direct Layer Mixer Library" 
+HOMEPAGE="http://www.libsdl.org/projects/SDL_mixer/" 
+SRC_URI="hg+http://hg.libsdl.org/SDL_mixer/"
+#CHECKSUM_MD5=""
+REVISION="1"
+STATUS_HAIKU="stable"
+DEPEND="libsdl >= 1.2.14
+	media-libs/flac >= 1.2.1
+	media-libs/libmad >= 0.15.1
+	media-libs/libvorbis >= 1.3.1
+	media-libs/libmikmod >= 3.1.11
+	media-libs/libogg >= 1.2.0
+	media-libs/smpeg >= 0.4.5"
+BUILD {
+	cd sdl-mixer-1.2-hg
+	libtoolize --force --copy --install
+	cp ltmain.sh build-scripts/ltmain.sh
+	cp `aclocal --print-ac-dir`/libtool.m4 acinclude
+	cp `aclocal --print-ac-dir`/ltoptions.m4 acinclude
+	cp `aclocal --print-ac-dir`/ltversion.m4 acinclude
+	cp `aclocal --print-ac-dir`/ltsugar.m4 acinclude
+	cp `aclocal --print-ac-dir`/lt~obsolete.m4 acinclude
+	./autogen.sh
+	MANDIR=`finddir B_COMMON_DOCUMENTATION_DIRECTORY`/man
+	LIBDIR=`finddir B_COMMON_LIB_DIRECTORY`
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` \
+		--libdir=$LIBDIR \
+		--mandir=$MANDIR \
+		--enable-music-midi
+	make
+}
+
+INSTALL {
+	cd sdl-mixer-1.2-hg
+	make install
+}
+
+LICENSE="GNU LGPL v2.1"
+COPYRIGHT="1997-2011 Sam Lantinga"