Add BUILD.gn file for fuchsia and stubs header

This adds a GN build definition and a hand-generated stub header.

Change-Id: I6843a5c07e4cf0d198e49a8caf75fcf9bd9a9909
diff --git a/BUILD.gn b/BUILD.gn
new file mode 100644
index 0000000..51da9e4
--- /dev/null
+++ b/BUILD.gn
@@ -0,0 +1,30 @@
+# Copyright 2016 The Fuchsia Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+config("snappy_config") {
+  include_dirs = [ "." ]
+}
+
+source_set("snappy") {
+  sources = [
+    "snappy-internal.h",
+    "snappy-sinksource.cc",
+    "snappy-sinksource.h",
+    "snappy-stubs-internal.cc",
+    "snappy-stubs-internal.h",
+    "snappy.cc",
+    "snappy.h",
+  ]
+
+  public_configs = [ ":snappy_config" ]
+
+  configs -= [ "//build/config:default_warnings" ]
+
+  cflags = [
+    "-Wall",
+    "-Wextra",
+    "-Wno-sign-compare",
+    "-Wno-unused-parameter",
+  ]
+}
diff --git a/snappy-stubs-public.h b/snappy-stubs-public.h
new file mode 100644
index 0000000..8b3e4aa
--- /dev/null
+++ b/snappy-stubs-public.h
@@ -0,0 +1,72 @@
+// Copyright 2011 Google Inc. All Rights Reserved.
+// Author: sesse@google.com (Steinar H. Gunderson)
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Various type stubs for the open-source version of Snappy.
+//
+// This file cannot include config.h, as it is included from snappy.h,
+// which is a public header. Instead, snappy-stubs-public.h is generated by
+// from snappy-stubs-public.h.in at configure time.
+
+#ifndef THIRD_PARTY_SNAPPY_OPENSOURCE_SNAPPY_STUBS_PUBLIC_H_
+#define THIRD_PARTY_SNAPPY_OPENSOURCE_SNAPPY_STUBS_PUBLIC_H_
+
+#include <stdint.h>
+#include <stddef.h>
+#include <sys/uio.h>
+
+#define SNAPPY_MAJOR @SNAPPY_MAJOR@
+#define SNAPPY_MINOR @SNAPPY_MINOR@
+#define SNAPPY_PATCHLEVEL @SNAPPY_PATCHLEVEL@
+#define SNAPPY_VERSION \
+    ((SNAPPY_MAJOR << 16) | (SNAPPY_MINOR << 8) | SNAPPY_PATCHLEVEL)
+
+#include <string>
+
+namespace snappy {
+
+typedef int8_t int8;
+typedef uint8_t uint8;
+typedef int16_t int16;
+typedef uint16_t uint16;
+typedef int32_t int32;
+typedef uint32_t uint32;
+typedef int64_t int64;
+typedef uint64_t uint64;
+
+typedef std::string string;
+
+#ifndef DISALLOW_COPY_AND_ASSIGN
+#define DISALLOW_COPY_AND_ASSIGN(TypeName) \
+  TypeName(const TypeName&);               \
+  void operator=(const TypeName&)
+#endif
+
+}  // namespace snappy
+
+#endif  // THIRD_PARTY_SNAPPY_OPENSOURCE_SNAPPY_STUBS_PUBLIC_H_