package/rsyslog: Add missing optional dependency libcrypt

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/rsyslog/rsyslog.mk

@@ -24,6 +24,7 @@ ifeq ($(BR2_PACKAGE_LIBEE),y)
 endif
 
 ifeq ($(BR2_PACKAGE_LIBGCRYPT),y)
+	RSYSLOG_DEPENDENCIES += libgcrypt
 	RSYSLOG_CONF_ENV += LIBGCRYPT_CONFIG=$(STAGING_DIR)/usr/bin/libgcrypt-config
 	RSYSLOG_CONF_OPT += --enable-libgcrypt=yes
 else