fade: Introduce --mixer-api to choose between ALSA and OSS.

[paraslash.git] / m4 / gengetopt / fade.m4

diff --git a/m4/gengetopt/fade.m4 b/m4/gengetopt/fade.m4
index 42f135fa3ee5d3ed6d61faf9b4088fd00d8302e2..450e05423db66925449934e0c5efab0b8d850c3e 100644 (file)
--- a/m4/gengetopt/fade.m4
+++ b/m4/gengetopt/fade.m4
@@ -32,6 +32,18 @@ option "config-file" c
        string typestr = "filename"
        optional
 
+option "mixer-api" a
+#~~~~~~~~~~~~~~~~~~~
+"choose the mixer API"
+       string typestr = "api"
+       optional
+       details = "
+               ALSA is preferred over OSS if both APIs are supported
+               and this option is not given. To see the supported
+               mixer APIs, use this option with an invalid string
+               as the mixer API, e.g. --mixer-api help.
+       "
+
 option "mixer-device" m
 #~~~~~~~~~~~~~~~~~~~~~~
 "choose mixer device"