Enable building with openssl 1.1

Upstream-Status: Pending
Signed-off-by: Armin Kuster <akuster808@gmail.com>

Index: git/src/pcr-extend.c
===================================================================
--- git.orig/src/pcr-extend.c
+++ git/src/pcr-extend.c
@@ -118,7 +118,7 @@ dump_buf (FILE *file, char *buf, size_t
 static unsigned char*
 sha1_file (FILE *file, unsigned int *hash_len)
 {
-    EVP_MD_CTX ctx = { 0 };
+    EVP_MD_CTX *ctx = EVP_MD_CTX_new();
     unsigned char *buf = NULL, *hash = NULL;
     size_t num_read = 0;
 
@@ -127,7 +127,7 @@ sha1_file (FILE *file, unsigned int *has
         perror ("malloc:\n");
         goto sha1_fail;
     }
-    if (EVP_DigestInit (&ctx, EVP_sha1 ()) == 0) {
+    if (EVP_DigestInit (ctx, EVP_sha1 ()) == 0) {
         ERR_print_errors_fp (stderr);
         goto sha1_fail;
     }
@@ -135,7 +135,7 @@ sha1_file (FILE *file, unsigned int *has
         num_read = fread (buf, 1, BUF_SIZE, file);
         if (num_read <= 0)
             break;
-        if (EVP_DigestUpdate (&ctx, buf, num_read) == 0) {
+        if (EVP_DigestUpdate (ctx, buf, num_read) == 0) {
             ERR_print_errors_fp (stderr);
             goto sha1_fail;
         }
@@ -149,7 +149,7 @@ sha1_file (FILE *file, unsigned int *has
         perror ("calloc of hash buffer:\n");
         goto sha1_fail;
     }
-    if (EVP_DigestFinal (&ctx, hash, hash_len) == 0) {
+    if (EVP_DigestFinal (ctx, hash, hash_len) == 0) {
         ERR_print_errors_fp (stderr);
         goto sha1_fail;
     }