glsl: Add opt_copy_propagation_elements.cpp to SConscript.

Fixes SCons build.

diff --git a/src/glsl/SConscript b/src/glsl/SConscript
index 2cc7b0eda7a4ca0878dc50ddcb624456e8d9c0b5..f55d7de744f72831ea6d7e591b462c5ec0555755 100644 (file)
--- a/src/glsl/SConscript
+++ b/src/glsl/SConscript
@@ -64,6 +64,7 @@ sources = [
     'opt_constant_propagation.cpp',
     'opt_constant_variable.cpp',
     'opt_copy_propagation.cpp',
+    'opt_copy_propagation_elements.cpp',
     'opt_dead_code.cpp',
     'opt_dead_code_local.cpp',
     'opt_dead_functions.cpp',