Add an option to disable the ossaudiodev module

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

Index: b/configure.ac
===================================================================
--- a/configure.ac
+++ b/configure.ac
@@ -2417,6 +2417,12 @@
 fi
 AC_SUBST(MPDEC)
 
+AC_ARG_ENABLE(ossaudiodev,
+	AS_HELP_STRING([--disable-ossaudiodev], [disable OSSAUDIODEV]),
+	[ if test "$enableval" = "no"; then
+	  DISABLED_EXTENSIONS="${DISABLED_EXTENSIONS} ossaudiodev"
+	  fi])
+
 # Check for support for loadable sqlite extensions
 AC_MSG_CHECKING(for --enable-loadable-sqlite-extensions)
 AC_ARG_ENABLE(loadable-sqlite-extensions,