alsa.m4: Fix the detection of topology library availability

The header file alsa/topology.h is mandatory and needs to be checked,
too.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/utils/alsa.m4 b/utils/alsa.m4
index 90e3ee56a9818ec076a7a76ef666efc0e3079022..4c457f0d4e1d592288c3369cf96f45c1f6144cc5 100644 (file)
--- a/utils/alsa.m4
+++ b/utils/alsa.m4
@@ -130,6 +130,7 @@ AC_LANG_C
 AC_MSG_CHECKING([for libatopology (sound headers version > 1.1.9)])
 AC_TRY_COMPILE([
 #include <alsa/asoundlib.h>
+#include <alsa/topology.h>
 ], [
 /* ensure backward compatibility */
 #if !defined(SND_LIB_VERSION)