configure: add subdir support

Jaska Uimonen · Jaska Uimonen · commit 90763f906dba · 2021-08-24T09:04:07.000+03:00
Signed-off-by: Jaska Uimonen &lt;jaska.uimonen@linux.intel.com&gt;
diff --git a/configure.ac b/configure.ac
@@ -3,7 +3,7 @@ AC_PREREQ(2.59)
 AC_INIT(alsa-utils, 1.2.5.1)
 AC_CONFIG_SRCDIR([aplay/aplay.c])
 AC_PREFIX_DEFAULT(/usr)
-AM_INIT_AUTOMAKE
+AM_INIT_AUTOMAKE([subdir-objects])
 
 AM_MAINTAINER_MODE([enable])
 
