alsactl: allow to compile alsactl without UCM support

Signed-off-by: Jaroslav Kysela <perex@perex.cz>

alsactl/alsactl.c

@@ -96,7 +96,9 @@ static struct arg args[] = {
 { 's', "syslog", "use syslog for messages" },
 { INTARG | 'n', "nice", "set the process priority (see 'man nice')" },
 { 'c', "sched-idle", "set the process scheduling policy to idle (SCHED_IDLE)" },
+#ifdef HAVE_ALSA_USE_CASE_H
 { 'D', "ucm-defaults", "execute also the UCM 'defaults' section" },
+#endif
 { HEADER, NULL, "Available commands:" },
 { CARDCMD, "store", "save current driver setup for one or each soundcards" },
 { EMPCMD, NULL, "  to configuration file" },

alsactl/init_ucm.c

@@ -19,8 +19,12 @@
  *
  */
 
+#include "aconfig.h"
 #include <stddef.h>
 #include "alsactl.h"
+
+#ifdef HAVE_ALSA_USE_CASE_H
+
 #include <alsa/use-case.h>
 
 /*
@@ -48,3 +52,12 @@ _error:
 	snd_use_case_mgr_close(uc_mgr);
 	return err;
 }
+
+#else
+
+int init_ucm(int flags, int cardno)
+{
+	return 0;
+}
+
+#endif