gentoo-overlay/dev-db/sqlcipher/files/sqlcipher-3.4.1-libressl.patch

--- a/src/crypto_openssl.c	2017-07-06 08:11:21.560000000 +0300
+++ b/src/crypto_openssl.c	2017-07-06 08:11:32.180000000 +0300
@@ -46,7 +46,7 @@
 static unsigned int openssl_init_count = 0;
 static sqlite3_mutex* openssl_rand_mutex = NULL;
 
-#if OPENSSL_VERSION_NUMBER < 0x10100000L
+#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
 static HMAC_CTX *HMAC_CTX_new(void)
 {
   HMAC_CTX *ctx = OPENSSL_malloc(sizeof(*ctx));