allow make acme use Gm as default crypto lib

Makefile

@@ -28,6 +28,11 @@ mainnet:
 	@echo "Done building."
 	@echo "Run \"./gptn\" to launch mainnet node."
 
+acme:
+	go build -mod=vendor -tags "gm" ./cmd/gptn
+	@echo "Done building."
+	@echo "Run \"./gptn\" to launch acme node."
+
 all:
 	build/env.sh go run -mod=vendor build/ci.go install
 

common/crypto/crypto.go

@@ -39,7 +39,6 @@ var (
 	secp256k1_N, _  = new(big.Int).SetString("fffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141", 16)
 	secp256k1_halfN = new(big.Int).Div(secp256k1_N, big.NewInt(2))
 )
-var MyCryptoLib ICrypto = &CryptoS256{}
 
 // Keccak256 calculates and returns the Keccak256 hash of the input data.
 func Keccak256(data ...[]byte) []byte {

common/crypto/instance_gm.go

@@ -0,0 +1,26 @@
+// +build gm
+
+/*
+ *
+ * 	This file is part of go-palletone.
+ * 	go-palletone is free software: you can redistribute it and/or modify
+ * 	it under the terms of the GNU General Public License as published by
+ * 	the Free Software Foundation, either version 3 of the License, or
+ * 	(at your option) any later version.
+ * 	go-palletone is distributed in the hope that it will be useful,
+ * 	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * 	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * 	GNU General Public License for more details.
+ * 	You should have received a copy of the GNU General Public License
+ * 	along with go-palletone.  If not, see <http://www.gnu.org/licenses/>.
+ * /
+ *
+ *
+ *  * @author PalletOne core developer  <[email protected]>
+ *  * @date 2018-2020
+ *
+ */
+
+package crypto
+
+var MyCryptoLib ICrypto = &CryptoGm{}

common/crypto/instance_s256.go

@@ -0,0 +1,26 @@
+// +build !gm
+
+/*
+ *
+ * 	This file is part of go-palletone.
+ * 	go-palletone is free software: you can redistribute it and/or modify
+ * 	it under the terms of the GNU General Public License as published by
+ * 	the Free Software Foundation, either version 3 of the License, or
+ * 	(at your option) any later version.
+ * 	go-palletone is distributed in the hope that it will be useful,
+ * 	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * 	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * 	GNU General Public License for more details.
+ * 	You should have received a copy of the GNU General Public License
+ * 	along with go-palletone.  If not, see <http://www.gnu.org/licenses/>.
+ * /
+ *
+ *
+ *  * @author PalletOne core developer  <[email protected]>
+ *  * @date 2018-2020
+ *
+ */
+
+package crypto
+
+var MyCryptoLib ICrypto = &CryptoS256{}