--- third_party/angle/third_party/vulkan-loader/BUILD.gn	2018-09-11 
21:11:45.000000000 +0200
+++ third_party/angle/third_party/vulkan-loader/BUILD.gn.orig	2018-09-15 
13:20:11.933889339 +0200
@@ -192,10 +192,6 @@
   if (is_win) {
     cflags = [ "/wd4201" ]
   }
-  if (is_linux) {
-    # assume secure_getenv() is available
-    defines += [ "HAVE_SECURE_GETENV" ]
-  }
 }
 
 if (!is_android) {