script: add OP_CHECKLOCKTIMEVERIFY.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Makefile

@@ -3,8 +3,8 @@
 # Needs to have oneof support: Ubuntu vivid's is too old :(
 PROTOCC:=protoc-c
 
-# Alpha has checksequenceverify, segregated witness+input-amount-in-sig+confidentual-transactions, schnorr
+# Alpha has checksequenceverify, segregated witness+input-amount-in-sig+confidentual-transactions, schnorr, checklocktimeverify
-FEATURES := -DHAS_CSV=1 -DALPHA_TXSTYLE=1 -DUSE_SCHNORR=1
+FEATURES := -DHAS_CSV=1 -DALPHA_TXSTYLE=1 -DUSE_SCHNORR=1 -DHAS_CLTV=1
 # Bitcoin uses DER for signatures
 #FEATURES := -DSCRIPTS_USE_DER
 

bitcoin/script.c

@@ -33,6 +33,14 @@
 /* OP_NOP, otherwise bitcoind complains */
 #define OP_CHECKSEQUENCEVERIFY	0x61
 #endif
+
+#ifdef HAS_CLTV
+#define OP_CHECKLOCKTIMEVERIFY	0xB1
+#else
+/* OP_NOP, otherwise bitcoind complains */
+#define OP_CHECKLOCKTIMEVERIFY	0x61
+#endif
+
 static void add(u8 **scriptp, const void *mem, size_t len)
 {
 	size_t oldlen = tal_count(*scriptp);