Re-order configure.ac statements

configure.ac

@@ -24,29 +24,27 @@ midi_default_port=
 AC_ARG_WITH([alsa],
             [AS_HELP_STRING([--with-alsa],
                             [use ALSA MIDI backend])],
-            [AS_IF([test "x$with_alsa" = xyes],
-                   [midi_backend=alsa
-                    midi_default_port="hw:1,0,0"])])
+            [AS_IF([test "x$with_alsa" = xyes], [midi_backend=alsa])])
 AC_ARG_WITH([oss],
             [AS_HELP_STRING([--with-oss],
                             [use OSS MIDI backend])],
-            [AS_IF([test "x$with_oss" = xyes],
-                   [midi_backend=oss
-                    midi_default_port="/dev/midi00"])])
-AC_DEFINE_UNQUOTED([DEFAULT_MIDI_PORT], ["$midi_default_port"],
-                   [Default MIDI port to use.])
-AC_SUBST([DEFAULT_MIDI_PORT], [$midi_default_port])
+            [AS_IF([test "x$with_oss" = xyes], [midi_backend=oss])])
 
 dnl Check for selected backend
 AS_CASE(["x$midi_backend"],
         [xalsa],
         [AM_PATH_ALSA([1.0.0],
                       [AC_DEFINE([USE_ALSA_MIDI_API], [1],
-                                 [Define wether to use the ALSA MIDI API.])])],
+                                 [Define wether to use the ALSA MIDI API.])
+                       midi_default_port="hw:1,0,0"])],
         [xoss],
         [AC_DEFINE([USE_OSS_MIDI_API], [1],
-                   [Define whether to use the OSS MIDI API.])],
+                   [Define whether to use the OSS MIDI API.])
+         midi_default_port="/dev/midi00"],
         [AC_MSG_ERROR([No MIDI backend selected.])])
+AC_DEFINE_UNQUOTED([DEFAULT_MIDI_PORT], ["$midi_default_port"],
+                   [Default MIDI port to use.])
+AC_SUBST([DEFAULT_MIDI_PORT], [$midi_default_port])
 
 dnl Output files
 AC_CONFIG_FILES([Makefile lib/Makefile src/Makefile