fix compilation on old distros

deps/mariadb-client-library/mariadb_lib.c.x509cache.patch

@@ -10,17 +10,18 @@
  #define CONNECT_TIMEOUT 0
  
  struct st_mariadb_methods MARIADB_DEFAULT_METHODS;
-@@ -4078,6 +4083,18 @@
+@@ -4078,6 +4083,19 @@
  
  void STDCALL mysql_thread_end(void)
  {
 +  if (local_x509_files != NULL) {
-+    for (int i=0; local_x509_files[i] != NULL ; i++) {
++    int i;
++    for (i=0; local_x509_files[i] != NULL ; i++) {
 +      free(local_x509_files[i]);
 +      free(local_x509_sha1s[i]);
 +    }
-+	free(local_x509_files);
-+	free(local_x509_sha1s);
++    free(local_x509_files);
++    free(local_x509_sha1s);
 +  }
 +  if (thread_ctx != NULL) {
 +    SSL_CTX_free(thread_ctx);

deps/mariadb-client-library/openssl.c.x509cache.patch

@@ -35,14 +35,14 @@
 +
 +  if(fstat(fd, &statbuf) == 0) {
 +    unsigned char *fb = (unsigned char *)mmap(0, statbuf.st_size, PROT_READ, MAP_SHARED, fd, 0);
-+      if (fb != MAP_FAILED) {
-+
-+        SHA1(fb, statbuf.st_size, temp);
-+        for (int i=0; i < SHA_DIGEST_LENGTH; i++) {
-+          sprintf((char*)&(file_sha1[i*2]), "%02x", temp[i]);
-+        }
-+        munmap(fb,statbuf.st_size);
-+	} else {
++    if (fb != MAP_FAILED) {
++      SHA1(fb, statbuf.st_size, temp);
++      int i;
++      for (i=0; i < SHA_DIGEST_LENGTH; i++) {
++        sprintf((char*)&(file_sha1[i*2]), "%02x", temp[i]);
++      }
++      munmap(fb,statbuf.st_size);
++    } else {
 +      return 0;
 +    }
 +  } else {