unbreak the build

diff --git a/src/mesa/shader/slang/slang_compile_function.h b/src/mesa/shader/slang/slang_compile_function.h
index f9e908d..96a6598 100644 (file)
--- a/src/mesa/shader/slang/slang_compile_function.h
+++ b/src/mesa/shader/slang/slang_compile_function.h
@@ -29,6 +29,7 @@
 extern "C" {
 #endif
 
+struct slang_code_unit_;
 struct slang_translation_unit_;
 
 typedef enum slang_function_kind_