Index: alsa-plugins-1.0.11/configure.in
===================================================================
--- alsa-plugins-1.0.11.orig/configure.in
+++ alsa-plugins-1.0.11/configure.in
@@ -13,15 +13,29 @@ PKG_CHECK_MODULES(ALSA, alsa >= 1.0.11)
 AC_CHECK_LIB(asound, snd_pcm_ioplug_create,,
 	     AC_ERROR([*** libasound has no external plugin SDK]), -ldl)
 
-PKG_CHECK_MODULES(JACK, jack >= 0.98, [HAVE_JACK=yes], [HAVE_JACK=no])
+AC_ARG_ENABLE([jack],
+	AC_HELP_STRING([--disable-jack], [Disable building of JACK plugin]))
+if test "x$enable_jack" != "xno"; then
+	PKG_CHECK_MODULES(JACK, jack >= 0.98, [HAVE_JACK=yes], [HAVE_JACK=no])
+fi
 AM_CONDITIONAL(HAVE_JACK, test x$HAVE_JACK = xyes)
 
-PKG_CHECK_MODULES(polypaudio, [polyplib], [HAVE_POLYP=yes], [HAVE_POLYP=no])
+AC_ARG_ENABLE([polypaudio],
+	AC_HELP_STRING([--disable-polypaudio], [Disable building of polypaudio plugin]))
+if test "x$enable_polypaudio" != "xno"; then
+	PKG_CHECK_MODULES(polypaudio, [polyplib], [HAVE_POLYP=yes], [HAVE_POLYP=no])
+fi
 AM_CONDITIONAL(HAVE_POLYP, test x$HAVE_POLYP = xyes)
 
-PKG_CHECK_MODULES(samplerate, [samplerate], [HAVE_SAMPLERATE=yes], [HAVE_SAMPLERATE=no])
+AC_ARG_ENABLE([samplerate],
+	AC_HELP_STRING([--disable-samplerate], [Disable building of samplerate plugin]))
+if test "x$enable_samplerate" != "xno"; then
+	PKG_CHECK_MODULES(samplerate, [samplerate], [HAVE_SAMPLERATE=yes], [HAVE_SAMPLERATE=no])
+fi
 AM_CONDITIONAL(HAVE_SAMPLERATE, test x$HAVE_SAMPLERATE = xyes)
 
+AC_ARG_ENABLE([avcodec],
+	AC_HELP_STRING([--disable-avcodec], [Disable building of avcodec code (a52 plugin)]))
 AC_ARG_WITH([avcodec-includedir],
 	[--with-avcodec-includedir=dir    AVcodec include directory],
 	[AVCODEC_CFLAGS="-I$withval"], [AVCODEC_CFLAGS=""])
@@ -35,9 +49,11 @@ LDFLAGS="$LDFLAGS $AVCODEC_LIBS"
 AC_SUBST(AVCODEC_CFLAGS)
 AVCODEC_LIBS="$AVCODEC_LIBS -lavcodec"
 AC_SUBST(AVCODEC_LIBS)
-AC_CHECK_LIB([avcodec], [avcodec_open], [HAVE_AVCODEC=yes], [HAVE_AVCODEC=no])
-if test x$HAVE_AVCODEC = xyes; then
-  AC_CHECK_HEADER([ffmpeg/avcodec.h], [], [HAVE_AVCODEC=no])
+if test "x$enable_avcodec" != "xno"; then
+	AC_CHECK_LIB([avcodec], [avcodec_open], [HAVE_AVCODEC=yes], [HAVE_AVCODEC=no])
+	if test x$HAVE_AVCODEC = xyes; then
+	  AC_CHECK_HEADER([ffmpeg/avcodec.h], [], [HAVE_AVCODEC=no])
+	fi
 fi
 AM_CONDITIONAL(HAVE_AVCODEC, test x$HAVE_AVCODEC = xyes)
 CFLAGS="$CFLAGS_saved"