glsl2: do not use __retval name; two underscores is reserved word according to GLSL spec (and Win7 ATI drivers do complain about that)
diff --git a/src/glsl/ir_function_inlining.cpp b/src/glsl/ir_function_inlining.cpp
index fd52d10..874602c 100644
--- a/src/glsl/ir_function_inlining.cpp
+++ b/src/glsl/ir_function_inlining.cpp
@@ -127,7 +127,7 @@
/* Generate storage for the return value. */
if (this->callee->return_type) {
- retval = new(ctx) ir_variable(this->callee->return_type, "__retval",
+ retval = new(ctx) ir_variable(this->callee->return_type, "_ret_val",
ir_var_auto);
next_ir->insert_before(retval);
}