stunnel: security bump to version 4.55

Fixes CVE-2013-1762, improves CVE-2010-3684 workaround.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/stunnel/Config.in

@@ -1,5 +1,6 @@
 config BR2_PACKAGE_STUNNEL
 	bool "stunnel"
+	depends on BR2_USE_MMU # fork()
 	select BR2_PACKAGE_OPENSSL
 	help
 	  Stunnel is a program that wraps any TCP connection with an SSL

package/stunnel/stunnel.mk

@@ -4,12 +4,12 @@
 #
 #############################################################
 
-STUNNEL_VERSION = 4.44
+STUNNEL_VERSION = 4.55
 STUNNEL_SITE = http://ftp.nluug.nl/pub/networking/stunnel
 STUNNEL_DEPENDENCIES = openssl
-STUNNEL_CONF_OPT += \
-	--with-ssl=$(STAGING_DIR)/usr \
-	--with-threads=fork
+STUNNEL_CONF_OPT = --with-ssl=$(STAGING_DIR)/usr --with-threads=fork
+STUNNEL_LICENSE = GPLv2+
+STUNNEL_LICENSE_FILES = COPYING COPYRIGHT.GPL
 
 define STUNNEL_INSTALL_CONF_SCRIPT
 	$(INSTALL) -m 0755 -D package/stunnel/S50stunnel $(TARGET_DIR)/etc/init.d/S50stunnel