diff -Naur ruby-1.9.3-p286.pristine/ext/openssl/openssl_missing.c ruby-1.9.3-p286/ext/openssl/openssl_missing.c
--- ruby-1.9.3-p286.pristine/ext/openssl/openssl_missing.c	2011-06-26 01:32:03.000000000 +0000
+++ ruby-1.9.3-p286/ext/openssl/openssl_missing.c	2013-01-28 05:08:38.192083253 +0000
@@ -22,7 +22,7 @@
 #include "openssl_missing.h"

 #if !defined(HAVE_HMAC_CTX_COPY)
-void
+int
 HMAC_CTX_copy(HMAC_CTX *out, HMAC_CTX *in)
 {
     if (!out || !in) return;
@@ -118,7 +118,7 @@
  * tested on 0.9.7d.
  */
 int
-EVP_CIPHER_CTX_copy(EVP_CIPHER_CTX *out, EVP_CIPHER_CTX *in)
+EVP_CIPHER_CTX_copy(EVP_CIPHER_CTX *out, const EVP_CIPHER_CTX *in)
 {
     memcpy(out, in, sizeof(EVP_CIPHER_CTX));

diff -Naur ruby-1.9.3-p286.pristine/ext/openssl/openssl_missing.h ruby-1.9.3-p286/ext/openssl/openssl_missing.h
--- ruby-1.9.3-p286.pristine/ext/openssl/openssl_missing.h	2011-06-26 01:32:03.000000000 +0000
+++ ruby-1.9.3-p286/ext/openssl/openssl_missing.h	2013-01-28 05:08:38.192500215 +0000
@@ -68,7 +68,7 @@
 #endif

 #if !defined(HAVE_HMAC_CTX_COPY)
-void HMAC_CTX_copy(HMAC_CTX *out, HMAC_CTX *in);
+int HMAC_CTX_copy(HMAC_CTX *out, HMAC_CTX *in);
 #endif

 #if !defined(HAVE_HMAC_CTX_CLEANUP)
@@ -92,7 +92,7 @@
 #endif

 #if !defined(HAVE_EVP_CIPHER_CTX_COPY)
-int EVP_CIPHER_CTX_copy(EVP_CIPHER_CTX *out, EVP_CIPHER_CTX *in);
+int EVP_CIPHER_CTX_copy(EVP_CIPHER_CTX *out, const EVP_CIPHER_CTX *in);
 #endif

 #if !defined(HAVE_EVP_DIGESTINIT_EX)