Add GnuTLS build option for eap_example

eap_example/Makefile

@@ -13,6 +13,7 @@ endif
 CONFIG_TLS=openssl
 #CONFIG_TLS=internal
 #CONFIG_INTERNAL_LIBTOMMATH=y
+#CONFIG_TLS=gnutls
 
 
 CFLAGS += -I.
@@ -113,6 +114,14 @@ LIBS += -lssl -lcrypto
 CONFIG_INTERNAL_SHA256=y
 endif
 
+ifeq ($(CONFIG_TLS), gnutls)
+CFLAGS += -DEAP_TLS_GNUTLS
+OBJS_both += ../src/crypto/tls_gnutls.o
+OBJS_both += ../src/crypto/crypto_gnutls.o
+LIBS += -lgnutls -lgcrypt
+CONFIG_INTERNAL_SHA256=y
+endif
+
 ifeq ($(CONFIG_TLS), internal)
 OBJS_both += ../src/crypto/tls_internal.o
 OBJS_both += ../src/tls/tlsv1_common.o ../src/tls/tlsv1_record.o