--- third_party/glslang/BUILD.gn.orig	2017-04-19 19:06:51 UTC
+++ third_party/glslang/BUILD.gn
@@ -8,7 +8,7 @@ config("glslang_config") {
   include_dirs = [ "src" ]
 
   defines = []
-  if (is_linux || is_android) {
+  if (is_linux || is_bsd || is_android) {
     defines += [ "GLSLANG_OSINCLUDE_UNIX" ]
   } else if (is_win) {
     defines += [ "GLSLANG_OSINCLUDE_WIN32" ]
@@ -132,7 +132,7 @@ static_library("glslang") {
     "src/glslang/Public/ShaderLang.h",
   ]
 
-  if (is_linux || is_android) {
+  if (is_linux || is_bsd || is_android) {
     sources += [ "src/glslang/OSDependent/Unix/ossource.cpp" ]
   } else if (is_win) {
     sources += [