compiler: Import Mesa compiler components

Merciliess removal of gl_context state
compiler: Bring glslang and LunarGLASS into CMake process
compiler: Progress (?) towards standalone xglCompiler
diff --git a/icd/intel/compiler/shader/ir.cpp b/icd/intel/compiler/shader/ir.cpp
index ba8a839..2a3a5c6 100644
--- a/icd/intel/compiler/shader/ir.cpp
+++ b/icd/intel/compiler/shader/ir.cpp
@@ -21,10 +21,10 @@
  * DEALINGS IN THE SOFTWARE.
  */
 #include <string.h>
-#include "main/core.h" /* for MAX2 */
 #include "ir.h"
 #include "ir_visitor.h"
 #include "glsl_types.h"
+#include "libfns.h"
 
 ir_rvalue::ir_rvalue()
 {