initial commit, 4.5 stable

modules/glslang/config.py

@@ -0,0 +1,8 @@
+def can_build(env, platform):
+    # glslang is only needed when Vulkan, Direct3D 12 or Metal-based renderers are available,
+    # as OpenGL doesn't use glslang.
+    return env["vulkan"] or env["d3d12"] or env["metal"]
+
+
+def configure(env):
+    pass