AC_SUBST($1_LIBS)
])
+AC_DEFUN(_TUXBOX_APPS_LIB_PKGCONFIG_OPTIONAL,[
+PKG_CHECK_MODULES($1,$2,$3="yes",$3="no")
+if test "$$3" = "yes"; then
+ AC_DEFINE($3, 1, [$2 available])
+else
+ $1_CFLAGS=""
+ $1_LIBS=""
+fi
+AC_SUBST($1_CFLAGS)
+AC_SUBST($1_LIBS)
+])
+
AC_DEFUN(TUXBOX_APPS_LIB_PKGCONFIG,[
_TUXBOX_APPS_LIB_PKGCONFIG($1,$2)
if test -z "$$1_CFLAGS" ; then