--- mongo-tools-r4.0.0/vendor/src/github.com/10gen/openssl/cert.go.orig
+++ mongo-tools-r4.0.0/vendor/src/github.com/10gen/openssl/cert.go
@@ -277,8 +277,8 @@
 		md = C.X_EVP_md_null()
 	case EVP_MD5:
 		md = C.X_EVP_md5()
-	case EVP_SHA:
-		md = C.X_EVP_sha()
+	//case EVP_SHA:
+	//	md = C.X_EVP_sha()
 	case EVP_SHA1:
 		md = C.X_EVP_sha1()
 	case EVP_DSS:
--- mongo-tools-r4.0.0/vendor/src/github.com/10gen/openssl/shim.c.orig
+++ mongo-tools-r4.0.0/vendor/src/github.com/10gen/openssl/shim.c
@@ -47,7 +47,7 @@
  * v1.1.X and later implementation
  ************************************************
  */
-#if OPENSSL_VERSION_NUMBER >= 0x1010000fL
+#if OPENSSL_VERSION_NUMBER >= 0x1010000fL && !defined(LIBRESSL_VERSION_NUMBER)
 
 void X_BIO_set_data(BIO* bio, void* data) {
 	BIO_set_data(bio, data);
@@ -174,7 +174,7 @@
  * v1.0.X implementation
  ************************************************
  */
-#if OPENSSL_VERSION_NUMBER < 0x1010000fL
+#if OPENSSL_VERSION_NUMBER < 0x1010000fL || defined(LIBRESSL_VERSION_NUMBER)
 
 static int x_bio_create(BIO *b) {
 	b->shutdown = 1;
@@ -260,7 +260,8 @@
 }
 
 const EVP_MD *X_EVP_sha() {
-	return EVP_sha();
+	//return EVP_sha();
+	return NULL;
 }
 
 int X_EVP_CIPHER_CTX_encrypting(const EVP_CIPHER_CTX *ctx) {