glsl: implement compiling/linking of separate compilation units

A shader program may consist of multiple shaders (source code units).
If we find there are unresolved functions after compiling the unit that
defines main(), we'll concatenate all the respective vertex or fragment
shaders then recompile.

This isn't foolproof but should work in most cases.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/mesa/shader/slang/slang_codegen.h b/src/mesa/shader/slang/slang_codegen.h
index e812c1f7ea..d80013ad34 100644
--- a/src/mesa/shader/slang/slang_codegen.h
+++ b/src/mesa/shader/slang/slang_codegen.h
@@ -43,6 +43,7 @@ typedef struct slang_assemble_ctx_
    struct slang_ir_node_ *CurLoop;
    struct slang_function_ *CurFunction;
    GLuint UnrollLoop;
+   GLboolean UnresolvedRefs;
 } slang_assemble_ctx;