1 files changed, 73 insertions, 0 deletions
diff --git a/libcrypto/libcrypto/downstream/internal/platform.h b/libcrypto/libcrypto/downstream/internal/platform.h
new file mode 100644
index 0000000..251c223
--- /dev/null
+++ b/libcrypto/libcrypto/downstream/internal/platform.h
@@ -0,0 +1,73 @@
+/* file      : libcrypto/downstream/internal/platform.h -*- C -*-
+ * copyright : Copyright (c) 2018-2019 Code Synthesis Ltd
+ * license   : OpenSSL and SSLeay Licenses; see accompanying LICENSE file
+ */
+
+/*
+ * This header is used for inclusion of upstream's auto-generated
+ * platform-specific header.
+ *
+ * If there is the auto-generated header foo.h, then the workflow is normally
+ * as follows:
+ *
+ * - Create foo/.
+ *
+ * - Symlink platform.h into foo/.
+ *
+ * - Copy upstream's auto-generated for different platforms foo.h into foo/,
+ *   using the `<architecture>-<os>[-<compiler>].h` naming convention (see
+ *   below for exact names).
+ *
+ * - Create foo.h including foo/platform.h.
+ *
+ * See bn_conf.h for the real example.
+ */
+
+#ifndef _WIN32
+#  if defined(__x86_64__)                                 /* POSIX x86_64 */
+#    if defined(__linux__)
+#      include "x86_64-linux.h"
+#    elif defined(__FreeBSD__)
+#      include "x86_64-freebsd.h"
+#    elif defined(__APPLE__)
+#      include "x86_64-macos.h"
+#    else
+#      error x86_64 architecture is not supported for this OS
+#    endif
+#  elif defined(__i386__)                                 /* POSIX i386 */
+#    if defined(__linux__)
+#      include "i686-linux.h"
+/*
+ * i686 architecture is not currently supported for FreeBSD and Mac OS.
+ */
+/*
+#    elif defined(__FreeBSD__)
+#      include "i686-freebsd.h"
+#    elif defined(__APPLE__)
+#      include "i686-macos.h"
+*/
+#    else
+#      error i686 architecture is not supported for this OS
+#    endif
+#  else
+#    error unknown architecture
+#  endif
+#else
+#  if defined(_WIN64)                                     /* Windows x86_64 */
+#    if defined(_MSC_VER)
+#      include "x86_64-win32-msvc.h"
+#    elif defined(__MINGW32__)
+#      include "x86_64-win32-mingw32.h"
+#    else
+#      error x86_64 architecture is not supported for this compiler
+#    endif
+#  else                                                   /* Windows i386 */
+#    if defined(_MSC_VER)
+#      include "i686-win32-msvc.h"
+#    elif defined(__MINGW32__)
+#      include "i686-win32-mingw32.h"
+#    else
+#      error i686 architecture is not supported for this compiler
+#    endif
+#  endif
+#endif