[build] Copy BUILD.gn from //build/secondary
As part of soft transition to updating glfw to version 3.3,
copy //build/secondary/third_party/glfw/BUILD.gn so it is colocated
with the source and can atomically be revved when we update to 3.3.
BLD-564 #comment
Change-Id: I56bb98950b5e7697a8bd4587ad4b268400b475eb
diff --git a/BUILD.gn b/BUILD.gn
new file mode 100644
index 0000000..81a74fa
--- /dev/null
+++ b/BUILD.gn
@@ -0,0 +1,74 @@
+# Copyright 2017 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("glfw_config") {
+ include_dirs = [
+ "include",
+ "deps",
+ ]
+ cflags = [
+ "-Wall",
+ "-Wno-deprecated",
+ ]
+
+ # add flags to avoid compiler warnings
+ cflags += [
+ "-Wno-int-conversion",
+ "-Wno-implicit-function-declaration",
+ "-Wno-sign-compare",
+ ]
+}
+static_library("glfw") {
+ defines = [
+ "_GLFW_BUILD_DLL",
+ "__GLFW_USE_HYBRID_HPG",
+ ]
+ sources = [
+ "deps/getopt.c",
+ "deps/glad.c",
+ "src/context.c",
+ "src/init.c",
+ "src/input.c",
+ "src/monitor.c",
+ "src/vulkan.c",
+ "src/window.c",
+ ]
+ if (is_mac) {
+ defines += [
+ "_GLFW_COCOA",
+ "_GLFW_USE_RETINA",
+ ]
+ libs = [
+ "Cocoa.framework",
+ "CoreFoundation.framework",
+ "CoreGraphics.framework",
+ "CoreVideo.framework",
+ "IOKit.framework",
+ "OpenGL.framework",
+ ]
+ sources += [
+ "src/cocoa_init.m",
+ "src/cocoa_joystick.m",
+ "src/cocoa_monitor.m",
+ "src/cocoa_time.c",
+ "src/cocoa_window.m",
+ "src/nsgl_context.m",
+ "src/posix_tls.c",
+ ]
+ } else if (is_linux) {
+ defines += [ "_GLFW_X11" ]
+ sources += [
+ "src/egl_context.c",
+ "src/glx_context.c",
+ "src/linux_joystick.c",
+ "src/posix_time.c",
+ "src/posix_tls.c",
+ "src/x11_init.c",
+ "src/x11_monitor.c",
+ "src/x11_window.c",
+ "src/xkb_unicode.c",
+ ]
+ }
+ public_configs = [ ":glfw_config" ]
+}
