setting up vs

src/openssl/configuration.h.in

@@ -0,0 +1,69 @@
+/*
+ * {- join("\n * ", @autowarntext) -}
+ *
+ * Copyright 2016-2021 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#ifndef OPENSSL_CONFIGURATION_H
+# define OPENSSL_CONFIGURATION_H
+# pragma once
+
+# ifdef  __cplusplus
+extern "C" {
+# endif
+
+# ifdef OPENSSL_ALGORITHM_DEFINES
+#  error OPENSSL_ALGORITHM_DEFINES no longer supported
+# endif
+
+/*
+ * OpenSSL was configured with the following options:
+ */
+
+{- if (@{$config{openssl_sys_defines}}) {
+      foreach (@{$config{openssl_sys_defines}}) {
+        $OUT .= "# ifndef $_\n";
+        $OUT .= "#  define $_ 1\n";
+        $OUT .= "# endif\n";
+      }
+    }
+    foreach (@{$config{openssl_api_defines}}) {
+        (my $macro, my $value) = $_ =~ /^(.*?)=(.*?)$/;
+        $OUT .= "# define $macro $value\n";
+    }
+    if (@{$config{openssl_feature_defines}}) {
+      foreach (@{$config{openssl_feature_defines}}) {
+        $OUT .= "# ifndef $_\n";
+        $OUT .= "#  define $_\n";
+        $OUT .= "# endif\n";
+      }
+    }
+    "";
+-}
+
+/* Generate 80386 code? */
+{- $config{processor} eq "386" ? "# define" : "# undef" -} I386_ONLY
+
+/*
+ * The following are cipher-specific, but are part of the public API.
+ */
+# if !defined(OPENSSL_SYS_UEFI)
+{- $config{bn_ll} ? "#  define" : "#  undef" -} BN_LLONG
+/* Only one for the following should be defined */
+{- $config{b64l} ? "#  define" : "#  undef" -} SIXTY_FOUR_BIT_LONG
+{- $config{b64}  ? "#  define" : "#  undef" -} SIXTY_FOUR_BIT
+{- $config{b32}  ? "#  define" : "#  undef" -} THIRTY_TWO_BIT
+# endif
+
+# define RC4_INT {- $config{rc4_int} -}
+
+# ifdef  __cplusplus
+}
+# endif
+
+#endif                          /* OPENSSL_CONFIGURATION_H */