GN: Add support for Google Games Platform.

This is conditional upon defining a variable 'is_ggp'. The variable is
optional.

1 files changed, 3 insertions, 0 deletions

diff --git a/BUILD.gn b/BUILD.gn
index 56c115d..79d186f 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -31,6 +31,9 @@ config("vulkan_headers_config") {
   if (is_mac) {
     defines = [ "VK_USE_PLATFORM_METAL_EXT" ]
   }
+  if (defined(is_ggp) && is_ggp) {
+    defines = [ "VK_USE_PLATFORM_GGP" ]
+  }
 }
 
 # Vulkan headers only, no compiled sources.