package/octave: add optional libsndfile support

GNU Octave supports the --with-sndfile configure option since v4.0.0.

For reference, commit 40ea68b4b2 "package/octave: new package"
introduced the package at v7.1.0.

This commits adds this optional support.

Signed-off-by: Julien Olivain <ju.o@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/octave/octave.mk

@@ -43,6 +43,13 @@ else
 OCTAVE_CONF_OPTS += --without-curl
 endif
 
+ifeq ($(BR2_PACKAGE_LIBSNDFILE),y)
+OCTAVE_CONF_OPTS += --with-sndfile
+OCTAVE_DEPENDENCIES += libsndfile
+else
+OCTAVE_CONF_OPTS += --without-sndfile
+endif
+
 ifeq ($(BR2_PACKAGE_OPENSSL),y)
 OCTAVE_CONF_OPTS += --with-openssl=yes
 OCTAVE_DEPENDENCIES += openssl