Fixes to better handle various wolfSSL versions and build options.

ecc/Makefile

@@ -34,5 +34,5 @@ debug: all
 
 clean:
 	rm -f $(TARGETS)
-	rm ECC*.der
-	rm ECC*.pem
+	rm -f ECC*.der
+	rm -f ECC*.pem

ecc/ecc-key-export.c

@@ -133,6 +133,10 @@ int main(void)
 #ifdef WOLFSSL_DER_TO_PEM
     memset(pem, 0, sizeof(pem));
     ret = wc_DerToPem(der, derSz, pem, sizeof(pem), ECC_PUBLICKEY_TYPE);
+    if (ret < 0) {
+        /* try old type */
+        ret = wc_DerToPem(der, derSz, pem, sizeof(pem), PUBLICKEY_TYPE);
+    }
     if (ret < 0) {
         printf("wc_DerToPem error %s (%d)\n", wc_GetErrorString(ret), ret);
         return -1;
@@ -147,10 +151,10 @@ int main(void)
     }
     fwrite(pem, pemSz, 1, fp);
     fclose(fp);
-#endif
 
     printf("ECC Public Key Exported to %s\n",
         "./" XSTRINGIFY(TEST_ECC_KEY_CURVE) "_pub.pem");
+#endif
 
     wc_ecc_free(&key);
     wc_FreeRng(&rng);

ecc/parsekeys.sh

@@ -1,7 +1,32 @@
 #!/bin/sh
 
-openssl ec -inform der -in ECC_SECP256K1.der -text
-openssl ec -inform pem -in ECC_SECP256K1.pem -text
+# SECP256R1
+if [ -f ECC_SECP256R1.der ]; then
+	openssl ec -inform der -in ECC_SECP256R1.der -text
+fi
+if [ -f ECC_SECP256R1_pub.der ]; then
+	openssl ec -inform der -in ECC_SECP256R1_pub.der -text -pubin
+fi
 
-openssl ec -inform der -in ECC_SECP256K1_pub.der -text -pubin
-openssl ec -inform pem -in ECC_SECP256K1_pub.pem -text -pubin
+if [ -f ECC_SECP256R1.pem ]; then
+	openssl ec -inform pem -in ECC_SECP256R1.pem -text
+fi
+if [ -f ECC_SECP256R1_pub.pem ]; then
+	openssl ec -inform pem -in ECC_SECP256K1_pub.pem -text -pubin
+fi
+
+
+# SECP256K1
+if [ -f ECC_SECP256K1.der ]; then
+	openssl ec -inform der -in ECC_SECP256K1.der -text
+fi
+if [ -f ECC_SECP256K1_pub.der ]; then
+	openssl ec -inform der -in ECC_SECP256K1_pub.der -text -pubin
+fi
+
+if [ -f ECC_SECP256K1.pem ]; then
+	openssl ec -inform pem -in ECC_SECP256K1.pem -text
+fi
+if [ -f ECC_SECP256K1_pub.pem ]; then
+	openssl ec -inform pem -in ECC_SECP256K1_pub.pem -text -pubin
+fi